HEADER MEMBRANE PROTEIN 30-MAR-22 7ZDZ TITLE CRYO-EM STRUCTURE OF THE HUMAN INWARD-RECTIFIER POTASSIUM 2.1 CHANNEL TITLE 2 (KIR2.1) COMPND MOL_ID: 1; COMPND 2 MOLECULE: INWARD RECTIFIER POTASSIUM CHANNEL 2; COMPND 3 CHAIN: A, B, C, D; COMPND 4 SYNONYM: CARDIAC INWARD RECTIFIER POTASSIUM CHANNEL,INWARD RECTIFIER COMPND 5 K(+) CHANNEL KIR2.1,IRK-1,HIRK1,POTASSIUM CHANNEL,INWARDLY RECTIFYING COMPND 6 SUBFAMILY J MEMBER 2; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: KCNJ2, IRK1; SOURCE 6 EXPRESSION_SYSTEM: KOMAGATAELLA PASTORIS; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 4922 KEYWDS POTASSIUM CHANNEL, INWARD-RECTIFIER CHANNEL, INWARD RECTIFICATION, KEYWDS 2 MEMBRANE PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR C.A.H.FERNANDES,C.VENIEN-BRYAN,C.FAGNEN,D.ZUNIGA REVDAT 2 05-OCT-22 7ZDZ 1 JRNL REVDAT 1 28-SEP-22 7ZDZ 0 JRNL AUTH C.A.H.FERNANDES,D.ZUNIGA,C.FAGNEN,V.KUGLER,R.SCALA, JRNL AUTH 2 G.PEHAU-ARNAUDET,R.WAGNER,D.PERAHIA,S.BENDAHHOU, JRNL AUTH 3 C.VENIEN-BRYAN JRNL TITL CRYO-ELECTRON MICROSCOPY UNVEILS UNIQUE STRUCTURAL FEATURES JRNL TITL 2 OF THE HUMAN KIR2.1 CHANNEL. JRNL REF SCI ADV V. 8 Q8489 2022 JRNL REFN ESSN 2375-2548 JRNL PMID 36149965 JRNL DOI 10.1126/SCIADV.ABQ8489 REMARK 2 REMARK 2 RESOLUTION. 4.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : CRYOLO, EPU, CTFFIND, PHENIX, PHENIX, REMARK 3 COOT, RELION, RELION, RELION, RELION REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : 1U4F REMARK 3 REFINEMENT SPACE : REAL REMARK 3 REFINEMENT PROTOCOL : OTHER REMARK 3 REFINEMENT TARGET : CORRELATION COEFFICIENT REMARK 3 OVERALL ANISOTROPIC B VALUE : 404.730 REMARK 3 REMARK 3 FITTING PROCEDURE : FOR STRUCTURAL FITTING, IT WAS USED DOCK-IN REMARK 3 -MAP (AVAILABLE AT PHENIX) THAT USES BOTH SSM AND CONVOLUTION- REMARK 3 BASED SHAPE SEARCHES TO FIND A PART OF A MAP THAT IS SIMILAR TO REMARK 3 A MODEL. AN INITIAL IN SILICO HOMOLOGY MODEL OF HUMAN KIR2.1 WAS REMARK 3 GENERATED USING I-TASSER USING THE CRYSTAL STRUCTURE OF CHICKEN REMARK 3 KIR2.2 CHANNEL (PDB ID 3JYC) AS A TEMPLATE. FOR BUILDING AND REMARK 3 REFINEMENT OF THE ATOMIC MODEL, THE TRANSMEMBRANE DOMAIN (TMD, REMARK 3 55-184 REGION) OF THIS IN SILICO MODEL WAS PLACED INTO THE FINAL REMARK 3 SHARPENED CRYO-EM MAP USING THE DOCK IN MAP TOOL AVAILABLE IN REMARK 3 PHENIX. FOR THE CYTOPLASMIC DOMAIN (CTD; 188-367 REGION), THE REMARK 3 CRYSTAL STRUCTURE OF THE CTD FROM MICE KIR2.1 CHANNEL (PDB ID REMARK 3 1U4F) WAS PLACED INTO THE FINAL CRYO-EM MAP USING THE SAME REMARK 3 APPROACH. ONCE THE MODELS WERE PLACED IN THE ELECTRON DENSITY, REMARK 3 THE LOOPS THAT CONNECT THE TWO DOMAINS (185-187 REGION) AND A N- REMARK 3 TERMINAL LOOP (41-54 REGION) ABSENT IN THE IN SILICO MODEL WERE REMARK 3 MANUALLY BUILT USING COOT. REMARK 3 REMARK 3 EM IMAGE RECONSTRUCTION STATISTICS REMARK 3 NOMINAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 ACTUAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 EFFECTIVE RESOLUTION (ANGSTROMS) : 4.300 REMARK 3 NUMBER OF PARTICLES : 63584 REMARK 3 CTF CORRECTION METHOD : PHASE FLIPPING AND AMPLITUDE REMARK 3 CORRECTION REMARK 3 REMARK 3 EM RECONSTRUCTION MAGNIFICATION CALIBRATION: NULL REMARK 3 REMARK 3 OTHER DETAILS: NULL REMARK 4 REMARK 4 7ZDZ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 30-MAR-22. REMARK 100 THE DEPOSITION ID IS D_1292122071. REMARK 245 REMARK 245 EXPERIMENTAL DETAILS REMARK 245 RECONSTRUCTION METHOD : SINGLE PARTICLE REMARK 245 SPECIMEN TYPE : NULL REMARK 245 REMARK 245 ELECTRON MICROSCOPE SAMPLE REMARK 245 SAMPLE TYPE : PARTICLE REMARK 245 PARTICLE TYPE : POINT REMARK 245 NAME OF SAMPLE : HUMAN INWARD-RECTIFIER REMARK 245 POTASSIUM CHANNEL 2.1 (KIR2.1) REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : 0.60 REMARK 245 SAMPLE SUPPORT DETAILS : NULL REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : NULL REMARK 245 PH : 7.40 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : 9895 REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : FEI TITAN KRIOS REMARK 245 DETECTOR TYPE : FEI FALCON III (4K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 1200.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 2800.00 REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : 2.70 REMARK 245 IMAGING MODE : BRIGHT FIELD REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 6170.00 REMARK 245 ILLUMINATION MODE : FLOOD BEAM REMARK 245 NOMINAL MAGNIFICATION : 105000 REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : FIELD EMISSION GUN REMARK 245 ACCELERATION VOLTAGE (KV) : 300 REMARK 245 IMAGING DETAILS : NULL REMARK 247 REMARK 247 ELECTRON MICROSCOPY REMARK 247 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM ELECTRON REMARK 247 MICROSCOPY DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE REMARK 247 THAT CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES REMARK 247 ON THESE RECORDS ARE MEANINGLESS EXCEPT FOR THE CALCULATION REMARK 247 OF THE STRUCTURE FACTORS. REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 MET A 1 REMARK 465 GLY A 2 REMARK 465 SER A 3 REMARK 465 VAL A 4 REMARK 465 ARG A 5 REMARK 465 THR A 6 REMARK 465 ASN A 7 REMARK 465 ARG A 8 REMARK 465 TYR A 9 REMARK 465 SER A 10 REMARK 465 ILE A 11 REMARK 465 VAL A 12 REMARK 465 SER A 13 REMARK 465 SER A 14 REMARK 465 GLU A 15 REMARK 465 GLU A 16 REMARK 465 ASP A 17 REMARK 465 GLY A 18 REMARK 465 MET A 19 REMARK 465 LYS A 20 REMARK 465 LEU A 21 REMARK 465 ALA A 22 REMARK 465 THR A 23 REMARK 465 MET A 24 REMARK 465 ALA A 25 REMARK 465 VAL A 26 REMARK 465 ALA A 27 REMARK 465 ASN A 28 REMARK 465 GLY A 29 REMARK 465 PHE A 30 REMARK 465 GLY A 31 REMARK 465 ASN A 32 REMARK 465 GLY A 33 REMARK 465 LYS A 34 REMARK 465 SER A 35 REMARK 465 LYS A 36 REMARK 465 VAL A 37 REMARK 465 HIS A 38 REMARK 465 THR A 39 REMARK 465 ARG A 40 REMARK 465 GLN A 41 REMARK 465 ILE A 367 REMARK 465 LEU A 368 REMARK 465 SER A 369 REMARK 465 ASN A 370 REMARK 465 ALA A 371 REMARK 465 ASN A 372 REMARK 465 SER A 373 REMARK 465 PHE A 374 REMARK 465 CYS A 375 REMARK 465 TYR A 376 REMARK 465 GLU A 377 REMARK 465 ASN A 378 REMARK 465 GLU A 379 REMARK 465 VAL A 380 REMARK 465 ALA A 381 REMARK 465 LEU A 382 REMARK 465 THR A 383 REMARK 465 SER A 384 REMARK 465 LYS A 385 REMARK 465 GLU A 386 REMARK 465 GLU A 387 REMARK 465 ASP A 388 REMARK 465 ASP A 389 REMARK 465 SER A 390 REMARK 465 GLU A 391 REMARK 465 ASN A 392 REMARK 465 GLY A 393 REMARK 465 VAL A 394 REMARK 465 PRO A 395 REMARK 465 GLU A 396 REMARK 465 SER A 397 REMARK 465 THR A 398 REMARK 465 SER A 399 REMARK 465 THR A 400 REMARK 465 ASP A 401 REMARK 465 THR A 402 REMARK 465 PRO A 403 REMARK 465 PRO A 404 REMARK 465 ASP A 405 REMARK 465 ILE A 406 REMARK 465 ASP A 407 REMARK 465 LEU A 408 REMARK 465 HIS A 409 REMARK 465 ASN A 410 REMARK 465 GLN A 411 REMARK 465 ALA A 412 REMARK 465 SER A 413 REMARK 465 VAL A 414 REMARK 465 PRO A 415 REMARK 465 LEU A 416 REMARK 465 GLU A 417 REMARK 465 PRO A 418 REMARK 465 ARG A 419 REMARK 465 PRO A 420 REMARK 465 LEU A 421 REMARK 465 ARG A 422 REMARK 465 ARG A 423 REMARK 465 GLU A 424 REMARK 465 SER A 425 REMARK 465 GLU A 426 REMARK 465 ILE A 427 REMARK 465 MET B 1 REMARK 465 GLY B 2 REMARK 465 SER B 3 REMARK 465 VAL B 4 REMARK 465 ARG B 5 REMARK 465 THR B 6 REMARK 465 ASN B 7 REMARK 465 ARG B 8 REMARK 465 TYR B 9 REMARK 465 SER B 10 REMARK 465 ILE B 11 REMARK 465 VAL B 12 REMARK 465 SER B 13 REMARK 465 SER B 14 REMARK 465 GLU B 15 REMARK 465 GLU B 16 REMARK 465 ASP B 17 REMARK 465 GLY B 18 REMARK 465 MET B 19 REMARK 465 LYS B 20 REMARK 465 LEU B 21 REMARK 465 ALA B 22 REMARK 465 THR B 23 REMARK 465 MET B 24 REMARK 465 ALA B 25 REMARK 465 VAL B 26 REMARK 465 ALA B 27 REMARK 465 ASN B 28 REMARK 465 GLY B 29 REMARK 465 PHE B 30 REMARK 465 GLY B 31 REMARK 465 ASN B 32 REMARK 465 GLY B 33 REMARK 465 LYS B 34 REMARK 465 SER B 35 REMARK 465 LYS B 36 REMARK 465 VAL B 37 REMARK 465 HIS B 38 REMARK 465 THR B 39 REMARK 465 ARG B 40 REMARK 465 GLN B 41 REMARK 465 GLN B 42 REMARK 465 CYS B 43 REMARK 465 LYS B 365 REMARK 465 TYR B 366 REMARK 465 ILE B 367 REMARK 465 LEU B 368 REMARK 465 SER B 369 REMARK 465 ASN B 370 REMARK 465 ALA B 371 REMARK 465 ASN B 372 REMARK 465 SER B 373 REMARK 465 PHE B 374 REMARK 465 CYS B 375 REMARK 465 TYR B 376 REMARK 465 GLU B 377 REMARK 465 ASN B 378 REMARK 465 GLU B 379 REMARK 465 VAL B 380 REMARK 465 ALA B 381 REMARK 465 LEU B 382 REMARK 465 THR B 383 REMARK 465 SER B 384 REMARK 465 LYS B 385 REMARK 465 GLU B 386 REMARK 465 GLU B 387 REMARK 465 ASP B 388 REMARK 465 ASP B 389 REMARK 465 SER B 390 REMARK 465 GLU B 391 REMARK 465 ASN B 392 REMARK 465 GLY B 393 REMARK 465 VAL B 394 REMARK 465 PRO B 395 REMARK 465 GLU B 396 REMARK 465 SER B 397 REMARK 465 THR B 398 REMARK 465 SER B 399 REMARK 465 THR B 400 REMARK 465 ASP B 401 REMARK 465 THR B 402 REMARK 465 PRO B 403 REMARK 465 PRO B 404 REMARK 465 ASP B 405 REMARK 465 ILE B 406 REMARK 465 ASP B 407 REMARK 465 LEU B 408 REMARK 465 HIS B 409 REMARK 465 ASN B 410 REMARK 465 GLN B 411 REMARK 465 ALA B 412 REMARK 465 SER B 413 REMARK 465 VAL B 414 REMARK 465 PRO B 415 REMARK 465 LEU B 416 REMARK 465 GLU B 417 REMARK 465 PRO B 418 REMARK 465 ARG B 419 REMARK 465 PRO B 420 REMARK 465 LEU B 421 REMARK 465 ARG B 422 REMARK 465 ARG B 423 REMARK 465 GLU B 424 REMARK 465 SER B 425 REMARK 465 GLU B 426 REMARK 465 ILE B 427 REMARK 465 MET C 1 REMARK 465 GLY C 2 REMARK 465 SER C 3 REMARK 465 VAL C 4 REMARK 465 ARG C 5 REMARK 465 THR C 6 REMARK 465 ASN C 7 REMARK 465 ARG C 8 REMARK 465 TYR C 9 REMARK 465 SER C 10 REMARK 465 ILE C 11 REMARK 465 VAL C 12 REMARK 465 SER C 13 REMARK 465 SER C 14 REMARK 465 GLU C 15 REMARK 465 GLU C 16 REMARK 465 ASP C 17 REMARK 465 GLY C 18 REMARK 465 MET C 19 REMARK 465 LYS C 20 REMARK 465 LEU C 21 REMARK 465 ALA C 22 REMARK 465 THR C 23 REMARK 465 MET C 24 REMARK 465 ALA C 25 REMARK 465 VAL C 26 REMARK 465 ALA C 27 REMARK 465 ASN C 28 REMARK 465 GLY C 29 REMARK 465 PHE C 30 REMARK 465 GLY C 31 REMARK 465 ASN C 32 REMARK 465 GLY C 33 REMARK 465 LYS C 34 REMARK 465 SER C 35 REMARK 465 LYS C 36 REMARK 465 VAL C 37 REMARK 465 HIS C 38 REMARK 465 THR C 39 REMARK 465 ARG C 40 REMARK 465 GLN C 41 REMARK 465 GLN C 42 REMARK 465 LYS C 364 REMARK 465 LYS C 365 REMARK 465 TYR C 366 REMARK 465 ILE C 367 REMARK 465 LEU C 368 REMARK 465 SER C 369 REMARK 465 ASN C 370 REMARK 465 ALA C 371 REMARK 465 ASN C 372 REMARK 465 SER C 373 REMARK 465 PHE C 374 REMARK 465 CYS C 375 REMARK 465 TYR C 376 REMARK 465 GLU C 377 REMARK 465 ASN C 378 REMARK 465 GLU C 379 REMARK 465 VAL C 380 REMARK 465 ALA C 381 REMARK 465 LEU C 382 REMARK 465 THR C 383 REMARK 465 SER C 384 REMARK 465 LYS C 385 REMARK 465 GLU C 386 REMARK 465 GLU C 387 REMARK 465 ASP C 388 REMARK 465 ASP C 389 REMARK 465 SER C 390 REMARK 465 GLU C 391 REMARK 465 ASN C 392 REMARK 465 GLY C 393 REMARK 465 VAL C 394 REMARK 465 PRO C 395 REMARK 465 GLU C 396 REMARK 465 SER C 397 REMARK 465 THR C 398 REMARK 465 SER C 399 REMARK 465 THR C 400 REMARK 465 ASP C 401 REMARK 465 THR C 402 REMARK 465 PRO C 403 REMARK 465 PRO C 404 REMARK 465 ASP C 405 REMARK 465 ILE C 406 REMARK 465 ASP C 407 REMARK 465 LEU C 408 REMARK 465 HIS C 409 REMARK 465 ASN C 410 REMARK 465 GLN C 411 REMARK 465 ALA C 412 REMARK 465 SER C 413 REMARK 465 VAL C 414 REMARK 465 PRO C 415 REMARK 465 LEU C 416 REMARK 465 GLU C 417 REMARK 465 PRO C 418 REMARK 465 ARG C 419 REMARK 465 PRO C 420 REMARK 465 LEU C 421 REMARK 465 ARG C 422 REMARK 465 ARG C 423 REMARK 465 GLU C 424 REMARK 465 SER C 425 REMARK 465 GLU C 426 REMARK 465 ILE C 427 REMARK 465 MET D 1 REMARK 465 GLY D 2 REMARK 465 SER D 3 REMARK 465 VAL D 4 REMARK 465 ARG D 5 REMARK 465 THR D 6 REMARK 465 ASN D 7 REMARK 465 ARG D 8 REMARK 465 TYR D 9 REMARK 465 SER D 10 REMARK 465 ILE D 11 REMARK 465 VAL D 12 REMARK 465 SER D 13 REMARK 465 SER D 14 REMARK 465 GLU D 15 REMARK 465 GLU D 16 REMARK 465 ASP D 17 REMARK 465 GLY D 18 REMARK 465 MET D 19 REMARK 465 LYS D 20 REMARK 465 LEU D 21 REMARK 465 ALA D 22 REMARK 465 THR D 23 REMARK 465 MET D 24 REMARK 465 ALA D 25 REMARK 465 VAL D 26 REMARK 465 ALA D 27 REMARK 465 ASN D 28 REMARK 465 GLY D 29 REMARK 465 PHE D 30 REMARK 465 GLY D 31 REMARK 465 ASN D 32 REMARK 465 GLY D 33 REMARK 465 LYS D 34 REMARK 465 SER D 35 REMARK 465 LYS D 36 REMARK 465 VAL D 37 REMARK 465 HIS D 38 REMARK 465 THR D 39 REMARK 465 ARG D 40 REMARK 465 TYR D 366 REMARK 465 ILE D 367 REMARK 465 LEU D 368 REMARK 465 SER D 369 REMARK 465 ASN D 370 REMARK 465 ALA D 371 REMARK 465 ASN D 372 REMARK 465 SER D 373 REMARK 465 PHE D 374 REMARK 465 CYS D 375 REMARK 465 TYR D 376 REMARK 465 GLU D 377 REMARK 465 ASN D 378 REMARK 465 GLU D 379 REMARK 465 VAL D 380 REMARK 465 ALA D 381 REMARK 465 LEU D 382 REMARK 465 THR D 383 REMARK 465 SER D 384 REMARK 465 LYS D 385 REMARK 465 GLU D 386 REMARK 465 GLU D 387 REMARK 465 ASP D 388 REMARK 465 ASP D 389 REMARK 465 SER D 390 REMARK 465 GLU D 391 REMARK 465 ASN D 392 REMARK 465 GLY D 393 REMARK 465 VAL D 394 REMARK 465 PRO D 395 REMARK 465 GLU D 396 REMARK 465 SER D 397 REMARK 465 THR D 398 REMARK 465 SER D 399 REMARK 465 THR D 400 REMARK 465 ASP D 401 REMARK 465 THR D 402 REMARK 465 PRO D 403 REMARK 465 PRO D 404 REMARK 465 ASP D 405 REMARK 465 ILE D 406 REMARK 465 ASP D 407 REMARK 465 LEU D 408 REMARK 465 HIS D 409 REMARK 465 ASN D 410 REMARK 465 GLN D 411 REMARK 465 ALA D 412 REMARK 465 SER D 413 REMARK 465 VAL D 414 REMARK 465 PRO D 415 REMARK 465 LEU D 416 REMARK 465 GLU D 417 REMARK 465 PRO D 418 REMARK 465 ARG D 419 REMARK 465 PRO D 420 REMARK 465 LEU D 421 REMARK 465 ARG D 422 REMARK 465 ARG D 423 REMARK 465 GLU D 424 REMARK 465 SER D 425 REMARK 465 GLU D 426 REMARK 465 ILE D 427 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 PHE A 47 -66.73 -94.52 REMARK 500 GLU A 118 145.59 69.31 REMARK 500 GLU A 125 -142.71 -148.44 REMARK 500 VAL A 126 110.43 37.02 REMARK 500 ASN A 127 32.93 -150.05 REMARK 500 THR A 142 42.57 38.20 REMARK 500 LEU A 316 -72.38 -81.52 REMARK 500 ALA A 317 -0.85 -148.76 REMARK 500 HIS A 324 159.05 66.67 REMARK 500 PRO A 328 77.77 -69.66 REMARK 500 LEU A 330 51.52 -90.17 REMARK 500 CYS B 54 173.32 66.91 REMARK 500 ASN B 60 -72.38 63.99 REMARK 500 VAL B 61 28.20 40.61 REMARK 500 SER B 116 -179.27 60.76 REMARK 500 LYS B 120 -157.88 55.32 REMARK 500 THR B 151 178.04 59.75 REMARK 500 LYS B 188 61.77 62.61 REMARK 500 GLU B 191 -156.87 -148.07 REMARK 500 THR B 192 -8.35 75.76 REMARK 500 HIS B 197 -60.07 -91.79 REMARK 500 ALA B 202 -166.91 -164.28 REMARK 500 ASP B 255 -2.21 67.48 REMARK 500 ASP B 259 -14.71 -141.02 REMARK 500 ALA B 304 61.58 60.53 REMARK 500 LYS B 334 -116.58 56.60 REMARK 500 HIS B 345 54.56 -93.60 REMARK 500 LEU B 361 -1.36 67.57 REMARK 500 GLN C 57 -169.07 -175.83 REMARK 500 ILE C 59 -61.22 -94.98 REMARK 500 GLN C 66 -11.17 72.72 REMARK 500 TYR C 68 -77.04 -23.05 REMARK 500 LEU C 69 -14.05 -146.33 REMARK 500 ALA C 70 -36.51 176.14 REMARK 500 ILE C 72 -69.97 -138.41 REMARK 500 PHE C 73 -34.62 -130.51 REMARK 500 TRP C 81 -70.31 63.28 REMARK 500 TRP C 83 -9.19 74.94 REMARK 500 ASP C 114 35.84 -99.79 REMARK 500 GLU C 118 -95.61 55.90 REMARK 500 THR C 142 28.35 44.34 REMARK 500 THR C 151 -147.58 52.16 REMARK 500 ASN C 190 -157.86 -148.46 REMARK 500 GLU C 191 75.57 64.09 REMARK 500 THR C 192 22.51 84.17 REMARK 500 ASP C 205 108.35 -56.17 REMARK 500 GLU C 241 145.68 -172.28 REMARK 500 LEU C 279 52.14 -91.05 REMARK 500 LEU C 316 -72.06 -83.94 REMARK 500 ALA C 317 -4.36 -145.72 REMARK 500 REMARK 500 THIS ENTRY HAS 71 RAMACHANDRAN OUTLIERS. REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 501 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP B 255 OD1 REMARK 620 2 ASP D 255 OD1 169.6 REMARK 620 N 1 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-14678 RELATED DB: EMDB REMARK 900 CRYO-EM STRUCTURE OF THE HUMAN INWARD-RECTIFIER POTASSIUM 2.1 REMARK 900 CHANNEL (KIR2.1) DBREF 7ZDZ A 1 427 UNP P63252 KCNJ2_HUMAN 1 427 DBREF 7ZDZ B 1 427 UNP P63252 KCNJ2_HUMAN 1 427 DBREF 7ZDZ C 1 427 UNP P63252 KCNJ2_HUMAN 1 427 DBREF 7ZDZ D 1 427 UNP P63252 KCNJ2_HUMAN 1 427 SEQRES 1 A 427 MET GLY SER VAL ARG THR ASN ARG TYR SER ILE VAL SER SEQRES 2 A 427 SER GLU GLU ASP GLY MET LYS LEU ALA THR MET ALA VAL SEQRES 3 A 427 ALA ASN GLY PHE GLY ASN GLY LYS SER LYS VAL HIS THR SEQRES 4 A 427 ARG GLN GLN CYS ARG SER ARG PHE VAL LYS LYS ASP GLY SEQRES 5 A 427 HIS CYS ASN VAL GLN PHE ILE ASN VAL GLY GLU LYS GLY SEQRES 6 A 427 GLN ARG TYR LEU ALA ASP ILE PHE THR THR CYS VAL ASP SEQRES 7 A 427 ILE ARG TRP ARG TRP MET LEU VAL ILE PHE CYS LEU ALA SEQRES 8 A 427 PHE VAL LEU SER TRP LEU PHE PHE GLY CYS VAL PHE TRP SEQRES 9 A 427 LEU ILE ALA LEU LEU HIS GLY ASP LEU ASP ALA SER LYS SEQRES 10 A 427 GLU GLY LYS ALA CYS VAL SER GLU VAL ASN SER PHE THR SEQRES 11 A 427 ALA ALA PHE LEU PHE SER ILE GLU THR GLN THR THR ILE SEQRES 12 A 427 GLY TYR GLY PHE ARG CYS VAL THR ASP GLU CYS PRO ILE SEQRES 13 A 427 ALA VAL PHE MET VAL VAL PHE GLN SER ILE VAL GLY CYS SEQRES 14 A 427 ILE ILE ASP ALA PHE ILE ILE GLY ALA VAL MET ALA LYS SEQRES 15 A 427 MET ALA LYS PRO LYS LYS ARG ASN GLU THR LEU VAL PHE SEQRES 16 A 427 SER HIS ASN ALA VAL ILE ALA MET ARG ASP GLY LYS LEU SEQRES 17 A 427 CYS LEU MET TRP ARG VAL GLY ASN LEU ARG LYS SER HIS SEQRES 18 A 427 LEU VAL GLU ALA HIS VAL ARG ALA GLN LEU LEU LYS SER SEQRES 19 A 427 ARG ILE THR SER GLU GLY GLU TYR ILE PRO LEU ASP GLN SEQRES 20 A 427 ILE ASP ILE ASN VAL GLY PHE ASP SER GLY ILE ASP ARG SEQRES 21 A 427 ILE PHE LEU VAL SER PRO ILE THR ILE VAL HIS GLU ILE SEQRES 22 A 427 ASP GLU ASP SER PRO LEU TYR ASP LEU SER LYS GLN ASP SEQRES 23 A 427 ILE ASP ASN ALA ASP PHE GLU ILE VAL VAL ILE LEU GLU SEQRES 24 A 427 GLY MET VAL GLU ALA THR ALA MET THR THR GLN CYS ARG SEQRES 25 A 427 SER SER TYR LEU ALA ASN GLU ILE LEU TRP GLY HIS ARG SEQRES 26 A 427 TYR GLU PRO VAL LEU PHE GLU GLU LYS HIS TYR TYR LYS SEQRES 27 A 427 VAL ASP TYR SER ARG PHE HIS LYS THR TYR GLU VAL PRO SEQRES 28 A 427 ASN THR PRO LEU CYS SER ALA ARG ASP LEU ALA GLU LYS SEQRES 29 A 427 LYS TYR ILE LEU SER ASN ALA ASN SER PHE CYS TYR GLU SEQRES 30 A 427 ASN GLU VAL ALA LEU THR SER LYS GLU GLU ASP ASP SER SEQRES 31 A 427 GLU ASN GLY VAL PRO GLU SER THR SER THR ASP THR PRO SEQRES 32 A 427 PRO ASP ILE ASP LEU HIS ASN GLN ALA SER VAL PRO LEU SEQRES 33 A 427 GLU PRO ARG PRO LEU ARG ARG GLU SER GLU ILE SEQRES 1 B 427 MET GLY SER VAL ARG THR ASN ARG TYR SER ILE VAL SER SEQRES 2 B 427 SER GLU GLU ASP GLY MET LYS LEU ALA THR MET ALA VAL SEQRES 3 B 427 ALA ASN GLY PHE GLY ASN GLY LYS SER LYS VAL HIS THR SEQRES 4 B 427 ARG GLN GLN CYS ARG SER ARG PHE VAL LYS LYS ASP GLY SEQRES 5 B 427 HIS CYS ASN VAL GLN PHE ILE ASN VAL GLY GLU LYS GLY SEQRES 6 B 427 GLN ARG TYR LEU ALA ASP ILE PHE THR THR CYS VAL ASP SEQRES 7 B 427 ILE ARG TRP ARG TRP MET LEU VAL ILE PHE CYS LEU ALA SEQRES 8 B 427 PHE VAL LEU SER TRP LEU PHE PHE GLY CYS VAL PHE TRP SEQRES 9 B 427 LEU ILE ALA LEU LEU HIS GLY ASP LEU ASP ALA SER LYS SEQRES 10 B 427 GLU GLY LYS ALA CYS VAL SER GLU VAL ASN SER PHE THR SEQRES 11 B 427 ALA ALA PHE LEU PHE SER ILE GLU THR GLN THR THR ILE SEQRES 12 B 427 GLY TYR GLY PHE ARG CYS VAL THR ASP GLU CYS PRO ILE SEQRES 13 B 427 ALA VAL PHE MET VAL VAL PHE GLN SER ILE VAL GLY CYS SEQRES 14 B 427 ILE ILE ASP ALA PHE ILE ILE GLY ALA VAL MET ALA LYS SEQRES 15 B 427 MET ALA LYS PRO LYS LYS ARG ASN GLU THR LEU VAL PHE SEQRES 16 B 427 SER HIS ASN ALA VAL ILE ALA MET ARG ASP GLY LYS LEU SEQRES 17 B 427 CYS LEU MET TRP ARG VAL GLY ASN LEU ARG LYS SER HIS SEQRES 18 B 427 LEU VAL GLU ALA HIS VAL ARG ALA GLN LEU LEU LYS SER SEQRES 19 B 427 ARG ILE THR SER GLU GLY GLU TYR ILE PRO LEU ASP GLN SEQRES 20 B 427 ILE ASP ILE ASN VAL GLY PHE ASP SER GLY ILE ASP ARG SEQRES 21 B 427 ILE PHE LEU VAL SER PRO ILE THR ILE VAL HIS GLU ILE SEQRES 22 B 427 ASP GLU ASP SER PRO LEU TYR ASP LEU SER LYS GLN ASP SEQRES 23 B 427 ILE ASP ASN ALA ASP PHE GLU ILE VAL VAL ILE LEU GLU SEQRES 24 B 427 GLY MET VAL GLU ALA THR ALA MET THR THR GLN CYS ARG SEQRES 25 B 427 SER SER TYR LEU ALA ASN GLU ILE LEU TRP GLY HIS ARG SEQRES 26 B 427 TYR GLU PRO VAL LEU PHE GLU GLU LYS HIS TYR TYR LYS SEQRES 27 B 427 VAL ASP TYR SER ARG PHE HIS LYS THR TYR GLU VAL PRO SEQRES 28 B 427 ASN THR PRO LEU CYS SER ALA ARG ASP LEU ALA GLU LYS SEQRES 29 B 427 LYS TYR ILE LEU SER ASN ALA ASN SER PHE CYS TYR GLU SEQRES 30 B 427 ASN GLU VAL ALA LEU THR SER LYS GLU GLU ASP ASP SER SEQRES 31 B 427 GLU ASN GLY VAL PRO GLU SER THR SER THR ASP THR PRO SEQRES 32 B 427 PRO ASP ILE ASP LEU HIS ASN GLN ALA SER VAL PRO LEU SEQRES 33 B 427 GLU PRO ARG PRO LEU ARG ARG GLU SER GLU ILE SEQRES 1 C 427 MET GLY SER VAL ARG THR ASN ARG TYR SER ILE VAL SER SEQRES 2 C 427 SER GLU GLU ASP GLY MET LYS LEU ALA THR MET ALA VAL SEQRES 3 C 427 ALA ASN GLY PHE GLY ASN GLY LYS SER LYS VAL HIS THR SEQRES 4 C 427 ARG GLN GLN CYS ARG SER ARG PHE VAL LYS LYS ASP GLY SEQRES 5 C 427 HIS CYS ASN VAL GLN PHE ILE ASN VAL GLY GLU LYS GLY SEQRES 6 C 427 GLN ARG TYR LEU ALA ASP ILE PHE THR THR CYS VAL ASP SEQRES 7 C 427 ILE ARG TRP ARG TRP MET LEU VAL ILE PHE CYS LEU ALA SEQRES 8 C 427 PHE VAL LEU SER TRP LEU PHE PHE GLY CYS VAL PHE TRP SEQRES 9 C 427 LEU ILE ALA LEU LEU HIS GLY ASP LEU ASP ALA SER LYS SEQRES 10 C 427 GLU GLY LYS ALA CYS VAL SER GLU VAL ASN SER PHE THR SEQRES 11 C 427 ALA ALA PHE LEU PHE SER ILE GLU THR GLN THR THR ILE SEQRES 12 C 427 GLY TYR GLY PHE ARG CYS VAL THR ASP GLU CYS PRO ILE SEQRES 13 C 427 ALA VAL PHE MET VAL VAL PHE GLN SER ILE VAL GLY CYS SEQRES 14 C 427 ILE ILE ASP ALA PHE ILE ILE GLY ALA VAL MET ALA LYS SEQRES 15 C 427 MET ALA LYS PRO LYS LYS ARG ASN GLU THR LEU VAL PHE SEQRES 16 C 427 SER HIS ASN ALA VAL ILE ALA MET ARG ASP GLY LYS LEU SEQRES 17 C 427 CYS LEU MET TRP ARG VAL GLY ASN LEU ARG LYS SER HIS SEQRES 18 C 427 LEU VAL GLU ALA HIS VAL ARG ALA GLN LEU LEU LYS SER SEQRES 19 C 427 ARG ILE THR SER GLU GLY GLU TYR ILE PRO LEU ASP GLN SEQRES 20 C 427 ILE ASP ILE ASN VAL GLY PHE ASP SER GLY ILE ASP ARG SEQRES 21 C 427 ILE PHE LEU VAL SER PRO ILE THR ILE VAL HIS GLU ILE SEQRES 22 C 427 ASP GLU ASP SER PRO LEU TYR ASP LEU SER LYS GLN ASP SEQRES 23 C 427 ILE ASP ASN ALA ASP PHE GLU ILE VAL VAL ILE LEU GLU SEQRES 24 C 427 GLY MET VAL GLU ALA THR ALA MET THR THR GLN CYS ARG SEQRES 25 C 427 SER SER TYR LEU ALA ASN GLU ILE LEU TRP GLY HIS ARG SEQRES 26 C 427 TYR GLU PRO VAL LEU PHE GLU GLU LYS HIS TYR TYR LYS SEQRES 27 C 427 VAL ASP TYR SER ARG PHE HIS LYS THR TYR GLU VAL PRO SEQRES 28 C 427 ASN THR PRO LEU CYS SER ALA ARG ASP LEU ALA GLU LYS SEQRES 29 C 427 LYS TYR ILE LEU SER ASN ALA ASN SER PHE CYS TYR GLU SEQRES 30 C 427 ASN GLU VAL ALA LEU THR SER LYS GLU GLU ASP ASP SER SEQRES 31 C 427 GLU ASN GLY VAL PRO GLU SER THR SER THR ASP THR PRO SEQRES 32 C 427 PRO ASP ILE ASP LEU HIS ASN GLN ALA SER VAL PRO LEU SEQRES 33 C 427 GLU PRO ARG PRO LEU ARG ARG GLU SER GLU ILE SEQRES 1 D 427 MET GLY SER VAL ARG THR ASN ARG TYR SER ILE VAL SER SEQRES 2 D 427 SER GLU GLU ASP GLY MET LYS LEU ALA THR MET ALA VAL SEQRES 3 D 427 ALA ASN GLY PHE GLY ASN GLY LYS SER LYS VAL HIS THR SEQRES 4 D 427 ARG GLN GLN CYS ARG SER ARG PHE VAL LYS LYS ASP GLY SEQRES 5 D 427 HIS CYS ASN VAL GLN PHE ILE ASN VAL GLY GLU LYS GLY SEQRES 6 D 427 GLN ARG TYR LEU ALA ASP ILE PHE THR THR CYS VAL ASP SEQRES 7 D 427 ILE ARG TRP ARG TRP MET LEU VAL ILE PHE CYS LEU ALA SEQRES 8 D 427 PHE VAL LEU SER TRP LEU PHE PHE GLY CYS VAL PHE TRP SEQRES 9 D 427 LEU ILE ALA LEU LEU HIS GLY ASP LEU ASP ALA SER LYS SEQRES 10 D 427 GLU GLY LYS ALA CYS VAL SER GLU VAL ASN SER PHE THR SEQRES 11 D 427 ALA ALA PHE LEU PHE SER ILE GLU THR GLN THR THR ILE SEQRES 12 D 427 GLY TYR GLY PHE ARG CYS VAL THR ASP GLU CYS PRO ILE SEQRES 13 D 427 ALA VAL PHE MET VAL VAL PHE GLN SER ILE VAL GLY CYS SEQRES 14 D 427 ILE ILE ASP ALA PHE ILE ILE GLY ALA VAL MET ALA LYS SEQRES 15 D 427 MET ALA LYS PRO LYS LYS ARG ASN GLU THR LEU VAL PHE SEQRES 16 D 427 SER HIS ASN ALA VAL ILE ALA MET ARG ASP GLY LYS LEU SEQRES 17 D 427 CYS LEU MET TRP ARG VAL GLY ASN LEU ARG LYS SER HIS SEQRES 18 D 427 LEU VAL GLU ALA HIS VAL ARG ALA GLN LEU LEU LYS SER SEQRES 19 D 427 ARG ILE THR SER GLU GLY GLU TYR ILE PRO LEU ASP GLN SEQRES 20 D 427 ILE ASP ILE ASN VAL GLY PHE ASP SER GLY ILE ASP ARG SEQRES 21 D 427 ILE PHE LEU VAL SER PRO ILE THR ILE VAL HIS GLU ILE SEQRES 22 D 427 ASP GLU ASP SER PRO LEU TYR ASP LEU SER LYS GLN ASP SEQRES 23 D 427 ILE ASP ASN ALA ASP PHE GLU ILE VAL VAL ILE LEU GLU SEQRES 24 D 427 GLY MET VAL GLU ALA THR ALA MET THR THR GLN CYS ARG SEQRES 25 D 427 SER SER TYR LEU ALA ASN GLU ILE LEU TRP GLY HIS ARG SEQRES 26 D 427 TYR GLU PRO VAL LEU PHE GLU GLU LYS HIS TYR TYR LYS SEQRES 27 D 427 VAL ASP TYR SER ARG PHE HIS LYS THR TYR GLU VAL PRO SEQRES 28 D 427 ASN THR PRO LEU CYS SER ALA ARG ASP LEU ALA GLU LYS SEQRES 29 D 427 LYS TYR ILE LEU SER ASN ALA ASN SER PHE CYS TYR GLU SEQRES 30 D 427 ASN GLU VAL ALA LEU THR SER LYS GLU GLU ASP ASP SER SEQRES 31 D 427 GLU ASN GLY VAL PRO GLU SER THR SER THR ASP THR PRO SEQRES 32 D 427 PRO ASP ILE ASP LEU HIS ASN GLN ALA SER VAL PRO LEU SEQRES 33 D 427 GLU PRO ARG PRO LEU ARG ARG GLU SER GLU ILE HET K B 501 1 HET SR B 502 1 HET SR C 501 1 HETNAM K POTASSIUM ION HETNAM SR STRONTIUM ION FORMUL 5 K K 1+ FORMUL 6 SR 2(SR 2+) HELIX 1 AA1 ILE A 72 ILE A 79 1 8 HELIX 2 AA2 TRP A 83 HIS A 110 1 28 HELIX 3 AA3 SER A 128 THR A 141 1 14 HELIX 4 AA4 CYS A 154 LYS A 185 1 32 HELIX 5 AA5 SER A 283 ALA A 290 1 8 HELIX 6 AA6 SER A 357 TYR A 366 1 10 HELIX 7 AA7 ASN B 60 LYS B 64 5 5 HELIX 8 AA8 ILE B 72 ARG B 80 1 9 HELIX 9 AA9 TRP B 83 ALA B 115 1 33 HELIX 10 AB1 ASN B 127 THR B 141 1 15 HELIX 11 AB2 CYS B 154 LYS B 185 1 32 HELIX 12 AB3 SER B 283 ALA B 290 1 8 HELIX 13 AB4 TYR B 341 PHE B 344 5 4 HELIX 14 AB5 PHE C 73 ILE C 79 1 7 HELIX 15 AB6 TRP C 83 GLY C 111 1 29 HELIX 16 AB7 SER C 128 THR C 141 1 14 HELIX 17 AB8 CYS C 154 ALA C 181 1 28 HELIX 18 AB9 LYS C 182 ALA C 184 5 3 HELIX 19 AC1 SER C 283 ASN C 289 1 7 HELIX 20 AC2 ASP C 340 PHE C 344 5 5 HELIX 21 AC3 ALA D 70 HIS D 110 1 41 HELIX 22 AC4 GLY D 111 ALA D 115 5 5 HELIX 23 AC5 PHE D 129 THR D 141 1 13 HELIX 24 AC6 CYS D 154 ALA D 184 1 31 HELIX 25 AC7 SER D 283 ALA D 290 1 8 HELIX 26 AC8 SER D 357 LYS D 364 1 8 SHEET 1 AA1 2 LEU A 193 VAL A 194 0 SHEET 2 AA1 2 GLY A 215 ASN A 216 -1 O GLY A 215 N VAL A 194 SHEET 1 AA2 4 THR A 268 ILE A 269 0 SHEET 2 AA2 4 LYS A 207 ARG A 213 -1 N TRP A 212 O ILE A 269 SHEET 3 AA2 4 ALA A 199 ARG A 204 -1 N ARG A 204 O LYS A 207 SHEET 4 AA2 4 ILE A 320 TRP A 322 1 O LEU A 321 N ILE A 201 SHEET 1 AA3 3 LEU A 222 VAL A 223 0 SHEET 2 AA3 3 GLY A 300 VAL A 302 -1 O MET A 301 N VAL A 223 SHEET 3 AA3 3 THR A 308 THR A 309 -1 O THR A 309 N GLY A 300 SHEET 1 AA4 4 TYR A 242 ASP A 249 0 SHEET 2 AA4 4 ARG A 228 ILE A 236 -1 N LEU A 231 O ILE A 248 SHEET 3 AA4 4 GLU A 293 ILE A 297 -1 O VAL A 295 N GLN A 230 SHEET 4 AA4 4 ARG A 312 SER A 313 -1 O SER A 313 N VAL A 296 SHEET 1 AA5 2 GLN B 57 PHE B 58 0 SHEET 2 AA5 2 LYS C 338 VAL C 339 1 O VAL C 339 N GLN B 57 SHEET 1 AA6 3 ALA B 202 ARG B 204 0 SHEET 2 AA6 3 LYS B 207 TRP B 212 -1 O CYS B 209 N ALA B 202 SHEET 3 AA6 3 ILE B 269 GLU B 272 -1 O ILE B 269 N TRP B 212 SHEET 1 AA7 3 LEU B 222 VAL B 223 0 SHEET 2 AA7 3 GLY B 300 VAL B 302 -1 O MET B 301 N VAL B 223 SHEET 3 AA7 3 THR B 308 THR B 309 -1 O THR B 309 N GLY B 300 SHEET 1 AA8 4 TYR B 242 ASP B 249 0 SHEET 2 AA8 4 ARG B 228 ILE B 236 -1 N LEU B 231 O ILE B 248 SHEET 3 AA8 4 GLU B 293 ILE B 297 -1 O VAL B 295 N GLN B 230 SHEET 4 AA8 4 TYR B 315 LEU B 316 -1 O TYR B 315 N ILE B 294 SHEET 1 AA9 2 HIS B 324 ARG B 325 0 SHEET 2 AA9 2 TYR B 348 GLU B 349 -1 O TYR B 348 N ARG B 325 SHEET 1 AB1 2 LEU B 330 GLU B 333 0 SHEET 2 AB1 2 TYR B 336 VAL B 339 -1 O TYR B 336 N GLU B 333 SHEET 1 AB2 3 VAL C 194 PHE C 195 0 SHEET 2 AB2 3 LYS C 207 GLY C 215 -1 O GLY C 215 N VAL C 194 SHEET 3 AB2 3 VAL C 200 ARG C 204 -1 N ALA C 202 O CYS C 209 SHEET 1 AB3 3 VAL C 194 PHE C 195 0 SHEET 2 AB3 3 LYS C 207 GLY C 215 -1 O GLY C 215 N VAL C 194 SHEET 3 AB3 3 THR C 268 HIS C 271 -1 O ILE C 269 N TRP C 212 SHEET 1 AB4 4 TYR C 242 ASP C 249 0 SHEET 2 AB4 4 LEU C 222 ILE C 236 -1 N ARG C 235 O ILE C 243 SHEET 3 AB4 4 GLU C 293 VAL C 302 -1 O VAL C 295 N GLN C 230 SHEET 4 AB4 4 THR C 308 TYR C 315 -1 O TYR C 315 N ILE C 294 SHEET 1 AB5 2 ARG C 325 TYR C 326 0 SHEET 2 AB5 2 THR C 347 TYR C 348 -1 O TYR C 348 N ARG C 325 SHEET 1 AB6 3 LEU D 193 PHE D 195 0 SHEET 2 AB6 3 LYS D 207 ASN D 216 -1 O GLY D 215 N VAL D 194 SHEET 3 AB6 3 VAL D 200 ARG D 204 -1 N ARG D 204 O LYS D 207 SHEET 1 AB7 3 LEU D 193 PHE D 195 0 SHEET 2 AB7 3 LYS D 207 ASN D 216 -1 O GLY D 215 N VAL D 194 SHEET 3 AB7 3 THR D 268 ILE D 269 -1 O ILE D 269 N TRP D 212 SHEET 1 AB8 4 TYR D 242 ASP D 249 0 SHEET 2 AB8 4 ARG D 228 ILE D 236 -1 N LEU D 231 O ILE D 248 SHEET 3 AB8 4 GLU D 293 ILE D 297 -1 O VAL D 295 N GLN D 230 SHEET 4 AB8 4 ARG D 312 TYR D 315 -1 O SER D 313 N VAL D 296 SHEET 1 AB9 2 GLY D 300 MET D 301 0 SHEET 2 AB9 2 THR D 308 THR D 309 -1 O THR D 309 N GLY D 300 SHEET 1 AC1 2 HIS D 324 ARG D 325 0 SHEET 2 AC1 2 TYR D 348 GLU D 349 -1 O TYR D 348 N ARG D 325 SSBOND 1 CYS A 122 CYS A 154 1555 1555 2.03 SSBOND 2 CYS B 122 CYS B 154 1555 1555 2.03 SSBOND 3 CYS C 122 CYS C 154 1555 1555 2.03 SSBOND 4 CYS D 122 CYS D 154 1555 1555 2.03 LINK OD1 ASP B 255 K K B 501 1555 1555 2.83 LINK K K B 501 OD1 ASP D 255 1555 1555 2.83 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000