HEADER MEMBRANE PROTEIN 14-OCT-24 9DYK TITLE BEST2 + GABA CLOSED STATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: BESTROPHIN-2; COMPND 3 CHAIN: D, E, C, A, B; COMPND 4 SYNONYM: VITELLIFORM MACULAR DYSTROPHY 2-LIKE PROTEIN 1; COMPND 5 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: BEST2, VMD2L1; SOURCE 6 EXPRESSION_SYSTEM: HOMO SAPIENS; SOURCE 7 EXPRESSION_SYSTEM_COMMON: HUMAN; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 9606; SOURCE 9 EXPRESSION_SYSTEM_CELL_LINE: HEK293 KEYWDS CALCIUM-ACTIVATED CHLORIDE CHANNEL, GABA-BOUND ANION CHANNEL, KEYWDS 2 CHANNEL-ACTIVATOR COMPLEX, MEMBRANE PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR A.P.OWJI,A.KITTREDGE,Y.ZHANG,T.YANG REVDAT 1 08-JAN-25 9DYK 0 JRNL AUTH A.P.OWJI,J.DONG,A.KITTREDGE,J.WANG,Y.ZHANG,T.YANG JRNL TITL NEUROTRANSMITTER-BOUND BESTROPHIN CHANNEL STRUCTURES REVEAL JRNL TITL 2 SMALL MOLECULE DRUG TARGETING SITES FOR DISEASE TREATMENT. JRNL REF NAT COMMUN V. 15 10766 2024 JRNL REFN ESSN 2041-1723 JRNL PMID 39737942 JRNL DOI 10.1038/S41467-024-54938-Z REMARK 2 REMARK 2 RESOLUTION. 2.27 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : LEGINON, PHENIX REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : 8D1E REMARK 3 REFINEMENT SPACE : NULL REMARK 3 REFINEMENT PROTOCOL : RIGID BODY FIT REMARK 3 REFINEMENT TARGET : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE : NULL REMARK 3 REMARK 3 FITTING PROCEDURE : NULL 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) : 2.270 REMARK 3 NUMBER OF PARTICLES : 54947 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 9DYK COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 15-OCT-24. REMARK 100 THE DEPOSITION ID IS D_1000288985. 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 : BEST2 + GABA CLOSED STATE REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : 5.00 REMARK 245 SAMPLE SUPPORT DETAILS : NULL REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : NULL REMARK 245 PH : 7.80 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : 1130 REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : TFS KRIOS REMARK 245 DETECTOR TYPE : GATAN K3 (6K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 800.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 1500.00 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) : 5800.00 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: PENTAMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: D, E, C, A, B 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 D 1 REMARK 465 ARG D 378 REMARK 465 LEU D 379 REMARK 465 ASP D 380 REMARK 465 GLY D 381 REMARK 465 LEU D 382 REMARK 465 ASP D 383 REMARK 465 GLY D 384 REMARK 465 PRO D 385 REMARK 465 MET D 386 REMARK 465 GLY D 387 REMARK 465 GLU D 388 REMARK 465 ALA D 389 REMARK 465 PRO D 390 REMARK 465 GLY D 391 REMARK 465 ASP D 392 REMARK 465 PHE D 393 REMARK 465 LEU D 394 REMARK 465 GLN D 395 REMARK 465 ARG D 396 REMARK 465 LEU D 397 REMARK 465 LEU D 398 REMARK 465 PRO D 399 REMARK 465 ALA D 400 REMARK 465 GLY D 401 REMARK 465 ALA D 402 REMARK 465 GLY D 403 REMARK 465 MET D 404 REMARK 465 VAL D 405 REMARK 465 ALA D 406 REMARK 465 MET E 1 REMARK 465 ARG E 378 REMARK 465 LEU E 379 REMARK 465 ASP E 380 REMARK 465 GLY E 381 REMARK 465 LEU E 382 REMARK 465 ASP E 383 REMARK 465 GLY E 384 REMARK 465 PRO E 385 REMARK 465 MET E 386 REMARK 465 GLY E 387 REMARK 465 GLU E 388 REMARK 465 ALA E 389 REMARK 465 PRO E 390 REMARK 465 GLY E 391 REMARK 465 ASP E 392 REMARK 465 PHE E 393 REMARK 465 LEU E 394 REMARK 465 GLN E 395 REMARK 465 ARG E 396 REMARK 465 LEU E 397 REMARK 465 LEU E 398 REMARK 465 PRO E 399 REMARK 465 ALA E 400 REMARK 465 GLY E 401 REMARK 465 ALA E 402 REMARK 465 GLY E 403 REMARK 465 MET E 404 REMARK 465 VAL E 405 REMARK 465 ALA E 406 REMARK 465 MET C 1 REMARK 465 ARG C 378 REMARK 465 LEU C 379 REMARK 465 ASP C 380 REMARK 465 GLY C 381 REMARK 465 LEU C 382 REMARK 465 ASP C 383 REMARK 465 GLY C 384 REMARK 465 PRO C 385 REMARK 465 MET C 386 REMARK 465 GLY C 387 REMARK 465 GLU C 388 REMARK 465 ALA C 389 REMARK 465 PRO C 390 REMARK 465 GLY C 391 REMARK 465 ASP C 392 REMARK 465 PHE C 393 REMARK 465 LEU C 394 REMARK 465 GLN C 395 REMARK 465 ARG C 396 REMARK 465 LEU C 397 REMARK 465 LEU C 398 REMARK 465 PRO C 399 REMARK 465 ALA C 400 REMARK 465 GLY C 401 REMARK 465 ALA C 402 REMARK 465 GLY C 403 REMARK 465 MET C 404 REMARK 465 VAL C 405 REMARK 465 ALA C 406 REMARK 465 MET A 1 REMARK 465 ARG A 378 REMARK 465 LEU A 379 REMARK 465 ASP A 380 REMARK 465 GLY A 381 REMARK 465 LEU A 382 REMARK 465 ASP A 383 REMARK 465 GLY A 384 REMARK 465 PRO A 385 REMARK 465 MET A 386 REMARK 465 GLY A 387 REMARK 465 GLU A 388 REMARK 465 ALA A 389 REMARK 465 PRO A 390 REMARK 465 GLY A 391 REMARK 465 ASP A 392 REMARK 465 PHE A 393 REMARK 465 LEU A 394 REMARK 465 GLN A 395 REMARK 465 ARG A 396 REMARK 465 LEU A 397 REMARK 465 LEU A 398 REMARK 465 PRO A 399 REMARK 465 ALA A 400 REMARK 465 GLY A 401 REMARK 465 ALA A 402 REMARK 465 GLY A 403 REMARK 465 MET A 404 REMARK 465 VAL A 405 REMARK 465 ALA A 406 REMARK 465 MET B 1 REMARK 465 ARG B 378 REMARK 465 LEU B 379 REMARK 465 ASP B 380 REMARK 465 GLY B 381 REMARK 465 LEU B 382 REMARK 465 ASP B 383 REMARK 465 GLY B 384 REMARK 465 PRO B 385 REMARK 465 MET B 386 REMARK 465 GLY B 387 REMARK 465 GLU B 388 REMARK 465 ALA B 389 REMARK 465 PRO B 390 REMARK 465 GLY B 391 REMARK 465 ASP B 392 REMARK 465 PHE B 393 REMARK 465 LEU B 394 REMARK 465 GLN B 395 REMARK 465 ARG B 396 REMARK 465 LEU B 397 REMARK 465 LEU B 398 REMARK 465 PRO B 399 REMARK 465 ALA B 400 REMARK 465 GLY B 401 REMARK 465 ALA B 402 REMARK 465 GLY B 403 REMARK 465 MET B 404 REMARK 465 VAL B 405 REMARK 465 ALA B 406 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 CYS D 272 -7.24 71.51 REMARK 500 ARG D 356 -8.34 74.25 REMARK 500 CYS E 272 -7.67 71.43 REMARK 500 ARG E 356 -8.18 74.21 REMARK 500 CYS C 272 -7.72 71.52 REMARK 500 ARG C 356 -8.39 74.33 REMARK 500 PHE C 365 30.15 -95.08 REMARK 500 CYS A 272 -7.38 71.43 REMARK 500 ARG A 356 -8.27 74.28 REMARK 500 CYS B 272 -7.67 71.67 REMARK 500 ARG B 356 -8.42 74.33 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 CA E 501 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ALA D 10 O REMARK 620 2 GLN E 293 O 148.8 REMARK 620 3 ASN E 296 O 84.1 88.9 REMARK 620 4 ASP E 301 OD2 99.4 88.7 176.2 REMARK 620 5 ASP E 304 OD1 131.9 76.9 83.2 93.4 REMARK 620 6 ASP E 304 OD2 86.9 123.5 89.6 89.3 46.8 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA D 501 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLN D 293 O REMARK 620 2 ASN D 296 O 90.7 REMARK 620 3 ASP D 301 OD2 88.6 176.8 REMARK 620 4 ASP D 304 OD1 75.3 82.5 94.4 REMARK 620 5 ASP D 304 OD2 121.5 88.5 89.2 46.7 REMARK 620 6 ALA C 10 O 151.4 84.4 97.6 131.5 86.7 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 501 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ALA E 10 O REMARK 620 2 GLN A 293 O 150.3 REMARK 620 3 ASN A 296 O 85.2 89.3 REMARK 620 4 ASP A 301 OD2 98.0 88.5 176.5 REMARK 620 5 ASP A 304 OD1 132.5 75.4 82.9 94.0 REMARK 620 6 ASP A 304 OD2 86.8 122.4 90.0 88.9 47.5 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA C 501 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLN C 293 O REMARK 620 2 ASN C 296 O 92.8 REMARK 620 3 ASP C 301 OD2 91.4 175.4 REMARK 620 4 ASP C 304 OD1 78.4 85.9 96.8 REMARK 620 5 ASP C 304 OD2 125.8 90.1 89.0 47.9 REMARK 620 6 ALA B 10 O 150.2 81.9 93.5 129.9 83.7 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA B 501 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ALA A 10 O REMARK 620 2 GLN B 293 O 150.6 REMARK 620 3 ASN B 296 O 84.9 88.8 REMARK 620 4 ASP B 301 OD2 96.3 90.5 178.7 REMARK 620 5 ASP B 304 OD1 131.0 76.1 82.5 96.3 REMARK 620 6 ASP B 304 OD2 85.6 123.1 90.2 89.3 47.4 REMARK 620 N 1 2 3 4 5 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-47307 RELATED DB: EMDB REMARK 900 BEST2 + GABA CLOSED STATE DBREF 9DYK D 1 406 UNP Q8NFU1 BEST2_HUMAN 1 406 DBREF 9DYK E 1 406 UNP Q8NFU1 BEST2_HUMAN 1 406 DBREF 9DYK C 1 406 UNP Q8NFU1 BEST2_HUMAN 1 406 DBREF 9DYK A 1 406 UNP Q8NFU1 BEST2_HUMAN 1 406 DBREF 9DYK B 1 406 UNP Q8NFU1 BEST2_HUMAN 1 406 SEQRES 1 D 406 MET THR VAL THR TYR THR ALA ARG VAL ALA ASN ALA ARG SEQRES 2 D 406 PHE GLY GLY PHE SER GLN LEU LEU LEU LEU TRP ARG GLY SEQRES 3 D 406 SER ILE TYR LYS LEU LEU TRP ARG GLU LEU LEU CYS PHE SEQRES 4 D 406 LEU GLY PHE TYR MET ALA LEU SER ALA ALA TYR ARG PHE SEQRES 5 D 406 VAL LEU THR GLU GLY GLN LYS ARG TYR PHE GLU LYS LEU SEQRES 6 D 406 VAL ILE TYR CYS ASP GLN TYR ALA SER LEU ILE PRO VAL SEQRES 7 D 406 SER PHE VAL LEU GLY PHE TYR VAL THR LEU VAL VAL ASN SEQRES 8 D 406 ARG TRP TRP SER GLN TYR LEU CYS MET PRO LEU PRO ASP SEQRES 9 D 406 ALA LEU MET CYS VAL VAL ALA GLY THR VAL HIS GLY ARG SEQRES 10 D 406 ASP ASP ARG GLY ARG LEU TYR ARG ARG THR LEU MET ARG SEQRES 11 D 406 TYR ALA GLY LEU SER ALA VAL LEU ILE LEU ARG SER VAL SEQRES 12 D 406 SER THR ALA VAL PHE LYS ARG PHE PRO THR ILE ASP HIS SEQRES 13 D 406 VAL VAL GLU ALA GLY PHE MET THR ARG GLU GLU ARG LYS SEQRES 14 D 406 LYS PHE GLU ASN LEU ASN SER SER TYR ASN LYS TYR TRP SEQRES 15 D 406 VAL PRO CYS VAL TRP PHE SER ASN LEU ALA ALA GLN ALA SEQRES 16 D 406 ARG ARG GLU GLY ARG ILE ARG ASP ASN SER ALA LEU LYS SEQRES 17 D 406 LEU LEU LEU GLU GLU LEU ASN VAL PHE ARG GLY LYS CYS SEQRES 18 D 406 GLY MET LEU PHE HIS TYR ASP TRP ILE SER VAL PRO LEU SEQRES 19 D 406 VAL TYR THR GLN VAL VAL THR ILE ALA LEU TYR SER TYR SEQRES 20 D 406 PHE LEU ALA CYS LEU ILE GLY ARG GLN PHE LEU ASP PRO SEQRES 21 D 406 ALA GLN GLY TYR LYS ASP HIS ASP LEU ASP LEU CYS VAL SEQRES 22 D 406 PRO ILE PHE THR LEU LEU GLN PHE PHE PHE TYR ALA GLY SEQRES 23 D 406 TRP LEU LYS VAL ALA GLU GLN LEU ILE ASN PRO PHE GLY SEQRES 24 D 406 GLU ASP ASP ASP ASP PHE GLU THR ASN PHE LEU ILE ASP SEQRES 25 D 406 ARG ASN PHE GLN VAL SER MET LEU ALA VAL ASP GLU MET SEQRES 26 D 406 TYR ASP ASP LEU ALA VAL LEU GLU LYS ASP LEU TYR TRP SEQRES 27 D 406 ASP ALA ALA GLU ALA ARG ALA PRO TYR THR ALA ALA THR SEQRES 28 D 406 VAL PHE GLN LEU ARG GLN PRO SER PHE GLN GLY SER THR SEQRES 29 D 406 PHE ASP ILE THR LEU ALA LYS GLU ASP MET GLN PHE GLN SEQRES 30 D 406 ARG LEU ASP GLY LEU ASP GLY PRO MET GLY GLU ALA PRO SEQRES 31 D 406 GLY ASP PHE LEU GLN ARG LEU LEU PRO ALA GLY ALA GLY SEQRES 32 D 406 MET VAL ALA SEQRES 1 E 406 MET THR VAL THR TYR THR ALA ARG VAL ALA ASN ALA ARG SEQRES 2 E 406 PHE GLY GLY PHE SER GLN LEU LEU LEU LEU TRP ARG GLY SEQRES 3 E 406 SER ILE TYR LYS LEU LEU TRP ARG GLU LEU LEU CYS PHE SEQRES 4 E 406 LEU GLY PHE TYR MET ALA LEU SER ALA ALA TYR ARG PHE SEQRES 5 E 406 VAL LEU THR GLU GLY GLN LYS ARG TYR PHE GLU LYS LEU SEQRES 6 E 406 VAL ILE TYR CYS ASP GLN TYR ALA SER LEU ILE PRO VAL SEQRES 7 E 406 SER PHE VAL LEU GLY PHE TYR VAL THR LEU VAL VAL ASN SEQRES 8 E 406 ARG TRP TRP SER GLN TYR LEU CYS MET PRO LEU PRO ASP SEQRES 9 E 406 ALA LEU MET CYS VAL VAL ALA GLY THR VAL HIS GLY ARG SEQRES 10 E 406 ASP ASP ARG GLY ARG LEU TYR ARG ARG THR LEU MET ARG SEQRES 11 E 406 TYR ALA GLY LEU SER ALA VAL LEU ILE LEU ARG SER VAL SEQRES 12 E 406 SER THR ALA VAL PHE LYS ARG PHE PRO THR ILE ASP HIS SEQRES 13 E 406 VAL VAL GLU ALA GLY PHE MET THR ARG GLU GLU ARG LYS SEQRES 14 E 406 LYS PHE GLU ASN LEU ASN SER SER TYR ASN LYS TYR TRP SEQRES 15 E 406 VAL PRO CYS VAL TRP PHE SER ASN LEU ALA ALA GLN ALA SEQRES 16 E 406 ARG ARG GLU GLY ARG ILE ARG ASP ASN SER ALA LEU LYS SEQRES 17 E 406 LEU LEU LEU GLU GLU LEU ASN VAL PHE ARG GLY LYS CYS SEQRES 18 E 406 GLY MET LEU PHE HIS TYR ASP TRP ILE SER VAL PRO LEU SEQRES 19 E 406 VAL TYR THR GLN VAL VAL THR ILE ALA LEU TYR SER TYR SEQRES 20 E 406 PHE LEU ALA CYS LEU ILE GLY ARG GLN PHE LEU ASP PRO SEQRES 21 E 406 ALA GLN GLY TYR LYS ASP HIS ASP LEU ASP LEU CYS VAL SEQRES 22 E 406 PRO ILE PHE THR LEU LEU GLN PHE PHE PHE TYR ALA GLY SEQRES 23 E 406 TRP LEU LYS VAL ALA GLU GLN LEU ILE ASN PRO PHE GLY SEQRES 24 E 406 GLU ASP ASP ASP ASP PHE GLU THR ASN PHE LEU ILE ASP SEQRES 25 E 406 ARG ASN PHE GLN VAL SER MET LEU ALA VAL ASP GLU MET SEQRES 26 E 406 TYR ASP ASP LEU ALA VAL LEU GLU LYS ASP LEU TYR TRP SEQRES 27 E 406 ASP ALA ALA GLU ALA ARG ALA PRO TYR THR ALA ALA THR SEQRES 28 E 406 VAL PHE GLN LEU ARG GLN PRO SER PHE GLN GLY SER THR SEQRES 29 E 406 PHE ASP ILE THR LEU ALA LYS GLU ASP MET GLN PHE GLN SEQRES 30 E 406 ARG LEU ASP GLY LEU ASP GLY PRO MET GLY GLU ALA PRO SEQRES 31 E 406 GLY ASP PHE LEU GLN ARG LEU LEU PRO ALA GLY ALA GLY SEQRES 32 E 406 MET VAL ALA SEQRES 1 C 406 MET THR VAL THR TYR THR ALA ARG VAL ALA ASN ALA ARG SEQRES 2 C 406 PHE GLY GLY PHE SER GLN LEU LEU LEU LEU TRP ARG GLY SEQRES 3 C 406 SER ILE TYR LYS LEU LEU TRP ARG GLU LEU LEU CYS PHE SEQRES 4 C 406 LEU GLY PHE TYR MET ALA LEU SER ALA ALA TYR ARG PHE SEQRES 5 C 406 VAL LEU THR GLU GLY GLN LYS ARG TYR PHE GLU LYS LEU SEQRES 6 C 406 VAL ILE TYR CYS ASP GLN TYR ALA SER LEU ILE PRO VAL SEQRES 7 C 406 SER PHE VAL LEU GLY PHE TYR VAL THR LEU VAL VAL ASN SEQRES 8 C 406 ARG TRP TRP SER GLN TYR LEU CYS MET PRO LEU PRO ASP SEQRES 9 C 406 ALA LEU MET CYS VAL VAL ALA GLY THR VAL HIS GLY ARG SEQRES 10 C 406 ASP ASP ARG GLY ARG LEU TYR ARG ARG THR LEU MET ARG SEQRES 11 C 406 TYR ALA GLY LEU SER ALA VAL LEU ILE LEU ARG SER VAL SEQRES 12 C 406 SER THR ALA VAL PHE LYS ARG PHE PRO THR ILE ASP HIS SEQRES 13 C 406 VAL VAL GLU ALA GLY PHE MET THR ARG GLU GLU ARG LYS SEQRES 14 C 406 LYS PHE GLU ASN LEU ASN SER SER TYR ASN LYS TYR TRP SEQRES 15 C 406 VAL PRO CYS VAL TRP PHE SER ASN LEU ALA ALA GLN ALA SEQRES 16 C 406 ARG ARG GLU GLY ARG ILE ARG ASP ASN SER ALA LEU LYS SEQRES 17 C 406 LEU LEU LEU GLU GLU LEU ASN VAL PHE ARG GLY LYS CYS SEQRES 18 C 406 GLY MET LEU PHE HIS TYR ASP TRP ILE SER VAL PRO LEU SEQRES 19 C 406 VAL TYR THR GLN VAL VAL THR ILE ALA LEU TYR SER TYR SEQRES 20 C 406 PHE LEU ALA CYS LEU ILE GLY ARG GLN PHE LEU ASP PRO SEQRES 21 C 406 ALA GLN GLY TYR LYS ASP HIS ASP LEU ASP LEU CYS VAL SEQRES 22 C 406 PRO ILE PHE THR LEU LEU GLN PHE PHE PHE TYR ALA GLY SEQRES 23 C 406 TRP LEU LYS VAL ALA GLU GLN LEU ILE ASN PRO PHE GLY SEQRES 24 C 406 GLU ASP ASP ASP ASP PHE GLU THR ASN PHE LEU ILE ASP SEQRES 25 C 406 ARG ASN PHE GLN VAL SER MET LEU ALA VAL ASP GLU MET SEQRES 26 C 406 TYR ASP ASP LEU ALA VAL LEU GLU LYS ASP LEU TYR TRP SEQRES 27 C 406 ASP ALA ALA GLU ALA ARG ALA PRO TYR THR ALA ALA THR SEQRES 28 C 406 VAL PHE GLN LEU ARG GLN PRO SER PHE GLN GLY SER THR SEQRES 29 C 406 PHE ASP ILE THR LEU ALA LYS GLU ASP MET GLN PHE GLN SEQRES 30 C 406 ARG LEU ASP GLY LEU ASP GLY PRO MET GLY GLU ALA PRO SEQRES 31 C 406 GLY ASP PHE LEU GLN ARG LEU LEU PRO ALA GLY ALA GLY SEQRES 32 C 406 MET VAL ALA SEQRES 1 A 406 MET THR VAL THR TYR THR ALA ARG VAL ALA ASN ALA ARG SEQRES 2 A 406 PHE GLY GLY PHE SER GLN LEU LEU LEU LEU TRP ARG GLY SEQRES 3 A 406 SER ILE TYR LYS LEU LEU TRP ARG GLU LEU LEU CYS PHE SEQRES 4 A 406 LEU GLY PHE TYR MET ALA LEU SER ALA ALA TYR ARG PHE SEQRES 5 A 406 VAL LEU THR GLU GLY GLN LYS ARG TYR PHE GLU LYS LEU SEQRES 6 A 406 VAL ILE TYR CYS ASP GLN TYR ALA SER LEU ILE PRO VAL SEQRES 7 A 406 SER PHE VAL LEU GLY PHE TYR VAL THR LEU VAL VAL ASN SEQRES 8 A 406 ARG TRP TRP SER GLN TYR LEU CYS MET PRO LEU PRO ASP SEQRES 9 A 406 ALA LEU MET CYS VAL VAL ALA GLY THR VAL HIS GLY ARG SEQRES 10 A 406 ASP ASP ARG GLY ARG LEU TYR ARG ARG THR LEU MET ARG SEQRES 11 A 406 TYR ALA GLY LEU SER ALA VAL LEU ILE LEU ARG SER VAL SEQRES 12 A 406 SER THR ALA VAL PHE LYS ARG PHE PRO THR ILE ASP HIS SEQRES 13 A 406 VAL VAL GLU ALA GLY PHE MET THR ARG GLU GLU ARG LYS SEQRES 14 A 406 LYS PHE GLU ASN LEU ASN SER SER TYR ASN LYS TYR TRP SEQRES 15 A 406 VAL PRO CYS VAL TRP PHE SER ASN LEU ALA ALA GLN ALA SEQRES 16 A 406 ARG ARG GLU GLY ARG ILE ARG ASP ASN SER ALA LEU LYS SEQRES 17 A 406 LEU LEU LEU GLU GLU LEU ASN VAL PHE ARG GLY LYS CYS SEQRES 18 A 406 GLY MET LEU PHE HIS TYR ASP TRP ILE SER VAL PRO LEU SEQRES 19 A 406 VAL TYR THR GLN VAL VAL THR ILE ALA LEU TYR SER TYR SEQRES 20 A 406 PHE LEU ALA CYS LEU ILE GLY ARG GLN PHE LEU ASP PRO SEQRES 21 A 406 ALA GLN GLY TYR LYS ASP HIS ASP LEU ASP LEU CYS VAL SEQRES 22 A 406 PRO ILE PHE THR LEU LEU GLN PHE PHE PHE TYR ALA GLY SEQRES 23 A 406 TRP LEU LYS VAL ALA GLU GLN LEU ILE ASN PRO PHE GLY SEQRES 24 A 406 GLU ASP ASP ASP ASP PHE GLU THR ASN PHE LEU ILE ASP SEQRES 25 A 406 ARG ASN PHE GLN VAL SER MET LEU ALA VAL ASP GLU MET SEQRES 26 A 406 TYR ASP ASP LEU ALA VAL LEU GLU LYS ASP LEU TYR TRP SEQRES 27 A 406 ASP ALA ALA GLU ALA ARG ALA PRO TYR THR ALA ALA THR SEQRES 28 A 406 VAL PHE GLN LEU ARG GLN PRO SER PHE GLN GLY SER THR SEQRES 29 A 406 PHE ASP ILE THR LEU ALA LYS GLU ASP MET GLN PHE GLN SEQRES 30 A 406 ARG LEU ASP GLY LEU ASP GLY PRO MET GLY GLU ALA PRO SEQRES 31 A 406 GLY ASP PHE LEU GLN ARG LEU LEU PRO ALA GLY ALA GLY SEQRES 32 A 406 MET VAL ALA SEQRES 1 B 406 MET THR VAL THR TYR THR ALA ARG VAL ALA ASN ALA ARG SEQRES 2 B 406 PHE GLY GLY PHE SER GLN LEU LEU LEU LEU TRP ARG GLY SEQRES 3 B 406 SER ILE TYR LYS LEU LEU TRP ARG GLU LEU LEU CYS PHE SEQRES 4 B 406 LEU GLY PHE TYR MET ALA LEU SER ALA ALA TYR ARG PHE SEQRES 5 B 406 VAL LEU THR GLU GLY GLN LYS ARG TYR PHE GLU LYS LEU SEQRES 6 B 406 VAL ILE TYR CYS ASP GLN TYR ALA SER LEU ILE PRO VAL SEQRES 7 B 406 SER PHE VAL LEU GLY PHE TYR VAL THR LEU VAL VAL ASN SEQRES 8 B 406 ARG TRP TRP SER GLN TYR LEU CYS MET PRO LEU PRO ASP SEQRES 9 B 406 ALA LEU MET CYS VAL VAL ALA GLY THR VAL HIS GLY ARG SEQRES 10 B 406 ASP ASP ARG GLY ARG LEU TYR ARG ARG THR LEU MET ARG SEQRES 11 B 406 TYR ALA GLY LEU SER ALA VAL LEU ILE LEU ARG SER VAL SEQRES 12 B 406 SER THR ALA VAL PHE LYS ARG PHE PRO THR ILE ASP HIS SEQRES 13 B 406 VAL VAL GLU ALA GLY PHE MET THR ARG GLU GLU ARG LYS SEQRES 14 B 406 LYS PHE GLU ASN LEU ASN SER SER TYR ASN LYS TYR TRP SEQRES 15 B 406 VAL PRO CYS VAL TRP PHE SER ASN LEU ALA ALA GLN ALA SEQRES 16 B 406 ARG ARG GLU GLY ARG ILE ARG ASP ASN SER ALA LEU LYS SEQRES 17 B 406 LEU LEU LEU GLU GLU LEU ASN VAL PHE ARG GLY LYS CYS SEQRES 18 B 406 GLY MET LEU PHE HIS TYR ASP TRP ILE SER VAL PRO LEU SEQRES 19 B 406 VAL TYR THR GLN VAL VAL THR ILE ALA LEU TYR SER TYR SEQRES 20 B 406 PHE LEU ALA CYS LEU ILE GLY ARG GLN PHE LEU ASP PRO SEQRES 21 B 406 ALA GLN GLY TYR LYS ASP HIS ASP LEU ASP LEU CYS VAL SEQRES 22 B 406 PRO ILE PHE THR LEU LEU GLN PHE PHE PHE TYR ALA GLY SEQRES 23 B 406 TRP LEU LYS VAL ALA GLU GLN LEU ILE ASN PRO PHE GLY SEQRES 24 B 406 GLU ASP ASP ASP ASP PHE GLU THR ASN PHE LEU ILE ASP SEQRES 25 B 406 ARG ASN PHE GLN VAL SER MET LEU ALA VAL ASP GLU MET SEQRES 26 B 406 TYR ASP ASP LEU ALA VAL LEU GLU LYS ASP LEU TYR TRP SEQRES 27 B 406 ASP ALA ALA GLU ALA ARG ALA PRO TYR THR ALA ALA THR SEQRES 28 B 406 VAL PHE GLN LEU ARG GLN PRO SER PHE GLN GLY SER THR SEQRES 29 B 406 PHE ASP ILE THR LEU ALA LYS GLU ASP MET GLN PHE GLN SEQRES 30 B 406 ARG LEU ASP GLY LEU ASP GLY PRO MET GLY GLU ALA PRO SEQRES 31 B 406 GLY ASP PHE LEU GLN ARG LEU LEU PRO ALA GLY ALA GLY SEQRES 32 B 406 MET VAL ALA HET CA D 501 1 HET CA E 501 1 HET CA C 501 1 HET CA A 501 1 HET CL A 502 1 HET CA B 501 1 HETNAM CA CALCIUM ION HETNAM CL CHLORIDE ION FORMUL 6 CA 5(CA 2+) FORMUL 10 CL CL 1- HELIX 1 AA1 THR D 6 ALA D 10 5 5 HELIX 2 AA2 GLN D 19 LEU D 23 5 5 HELIX 3 AA3 SER D 27 VAL D 53 1 27 HELIX 4 AA4 THR D 55 GLN D 71 1 17 HELIX 5 AA5 LEU D 75 CYS D 99 1 25 HELIX 6 AA6 PRO D 103 VAL D 114 1 12 HELIX 7 AA7 ASP D 118 SER D 144 1 27 HELIX 8 AA8 SER D 144 PHE D 151 1 8 HELIX 9 AA9 THR D 153 ALA D 160 1 8 HELIX 10 AB1 THR D 164 LEU D 174 1 11 HELIX 11 AB2 TRP D 182 GLU D 198 1 17 HELIX 12 AB3 ASP D 203 ILE D 230 1 28 HELIX 13 AB4 PRO D 233 ARG D 255 1 23 HELIX 14 AB5 ASP D 259 GLY D 263 5 5 HELIX 15 AB6 PRO D 274 ILE D 295 1 22 HELIX 16 AB7 GLU D 306 GLU D 324 1 19 HELIX 17 AB8 THR D 351 LEU D 355 5 5 HELIX 18 AB9 THR E 6 ALA E 10 5 5 HELIX 19 AC1 GLN E 19 LEU E 23 5 5 HELIX 20 AC2 SER E 27 VAL E 53 1 27 HELIX 21 AC3 THR E 55 GLN E 71 1 17 HELIX 22 AC4 SER E 74 CYS E 99 1 26 HELIX 23 AC5 PRO E 103 VAL E 114 1 12 HELIX 24 AC6 ASP E 118 SER E 144 1 27 HELIX 25 AC7 SER E 144 PHE E 151 1 8 HELIX 26 AC8 THR E 153 ALA E 160 1 8 HELIX 27 AC9 THR E 164 LEU E 174 1 11 HELIX 28 AD1 TRP E 182 GLU E 198 1 17 HELIX 29 AD2 ASP E 203 ILE E 230 1 28 HELIX 30 AD3 PRO E 233 ARG E 255 1 23 HELIX 31 AD4 ASP E 259 GLY E 263 5 5 HELIX 32 AD5 PRO E 274 ILE E 295 1 22 HELIX 33 AD6 GLU E 306 GLU E 324 1 19 HELIX 34 AD7 THR E 351 LEU E 355 5 5 HELIX 35 AD8 THR C 6 ALA C 10 5 5 HELIX 36 AD9 GLN C 19 LEU C 23 5 5 HELIX 37 AE1 SER C 27 VAL C 53 1 27 HELIX 38 AE2 THR C 55 GLN C 71 1 17 HELIX 39 AE3 SER C 74 CYS C 99 1 26 HELIX 40 AE4 PRO C 103 VAL C 114 1 12 HELIX 41 AE5 ASP C 118 SER C 144 1 27 HELIX 42 AE6 SER C 144 PHE C 151 1 8 HELIX 43 AE7 THR C 153 ALA C 160 1 8 HELIX 44 AE8 THR C 164 LEU C 174 1 11 HELIX 45 AE9 TRP C 182 GLU C 198 1 17 HELIX 46 AF1 ASP C 203 ILE C 230 1 28 HELIX 47 AF2 PRO C 233 ARG C 255 1 23 HELIX 48 AF3 ASP C 259 GLY C 263 5 5 HELIX 49 AF4 PRO C 274 ILE C 295 1 22 HELIX 50 AF5 GLU C 306 GLU C 324 1 19 HELIX 51 AF6 THR C 351 LEU C 355 5 5 HELIX 52 AF7 THR A 6 ALA A 10 5 5 HELIX 53 AF8 GLN A 19 LEU A 23 5 5 HELIX 54 AF9 SER A 27 VAL A 53 1 27 HELIX 55 AG1 THR A 55 GLN A 71 1 17 HELIX 56 AG2 SER A 74 CYS A 99 1 26 HELIX 57 AG3 PRO A 103 VAL A 114 1 12 HELIX 58 AG4 ASP A 118 SER A 144 1 27 HELIX 59 AG5 SER A 144 PHE A 151 1 8 HELIX 60 AG6 THR A 153 ALA A 160 1 8 HELIX 61 AG7 THR A 164 LEU A 174 1 11 HELIX 62 AG8 TRP A 182 GLU A 198 1 17 HELIX 63 AG9 ASP A 203 ILE A 230 1 28 HELIX 64 AH1 PRO A 233 ARG A 255 1 23 HELIX 65 AH2 ASP A 259 GLY A 263 5 5 HELIX 66 AH3 PRO A 274 ILE A 295 1 22 HELIX 67 AH4 GLU A 306 GLU A 324 1 19 HELIX 68 AH5 THR A 351 LEU A 355 5 5 HELIX 69 AH6 LYS A 371 GLN A 375 5 5 HELIX 70 AH7 THR B 6 ALA B 10 5 5 HELIX 71 AH8 GLN B 19 LEU B 23 5 5 HELIX 72 AH9 SER B 27 VAL B 53 1 27 HELIX 73 AI1 THR B 55 GLN B 71 1 17 HELIX 74 AI2 LEU B 75 CYS B 99 1 25 HELIX 75 AI3 PRO B 103 VAL B 114 1 12 HELIX 76 AI4 ASP B 118 SER B 144 1 27 HELIX 77 AI5 SER B 144 PHE B 151 1 8 HELIX 78 AI6 THR B 153 ALA B 160 1 8 HELIX 79 AI7 THR B 164 LEU B 174 1 11 HELIX 80 AI8 TRP B 182 GLU B 198 1 17 HELIX 81 AI9 ASP B 203 ILE B 230 1 28 HELIX 82 AJ1 PRO B 233 ARG B 255 1 23 HELIX 83 AJ2 ASP B 259 GLY B 263 5 5 HELIX 84 AJ3 PRO B 274 ILE B 295 1 22 HELIX 85 AJ4 GLU B 306 GLU B 324 1 19 HELIX 86 AJ5 THR B 351 LEU B 355 5 5 LINK O ALA D 10 CA CA E 501 1555 1555 2.53 LINK O GLN D 293 CA CA D 501 1555 1555 2.71 LINK O ASN D 296 CA CA D 501 1555 1555 2.39 LINK OD2 ASP D 301 CA CA D 501 1555 1555 2.44 LINK OD1 ASP D 304 CA CA D 501 1555 1555 2.86 LINK OD2 ASP D 304 CA CA D 501 1555 1555 2.65 LINK CA CA D 501 O ALA C 10 1555 1555 2.53 LINK O ALA E 10 CA CA A 501 1555 1555 2.54 LINK O GLN E 293 CA CA E 501 1555 1555 2.66 LINK O ASN E 296 CA CA E 501 1555 1555 2.40 LINK OD2 ASP E 301 CA CA E 501 1555 1555 2.44 LINK OD1 ASP E 304 CA CA E 501 1555 1555 2.84 LINK OD2 ASP E 304 CA CA E 501 1555 1555 2.64 LINK O GLN C 293 CA CA C 501 1555 1555 2.58 LINK O ASN C 296 CA CA C 501 1555 1555 2.38 LINK OD2 ASP C 301 CA CA C 501 1555 1555 2.45 LINK OD1 ASP C 304 CA CA C 501 1555 1555 2.75 LINK OD2 ASP C 304 CA CA C 501 1555 1555 2.65 LINK CA CA C 501 O ALA B 10 1555 1555 2.64 LINK O ALA A 10 CA CA B 501 1555 1555 2.60 LINK O GLN A 293 CA CA A 501 1555 1555 2.70 LINK O ASN A 296 CA CA A 501 1555 1555 2.39 LINK OD2 ASP A 301 CA CA A 501 1555 1555 2.44 LINK OD1 ASP A 304 CA CA A 501 1555 1555 2.83 LINK OD2 ASP A 304 CA CA A 501 1555 1555 2.59 LINK O GLN B 293 CA CA B 501 1555 1555 2.67 LINK O ASN B 296 CA CA B 501 1555 1555 2.41 LINK OD2 ASP B 301 CA CA B 501 1555 1555 2.46 LINK OD1 ASP B 304 CA CA B 501 1555 1555 2.81 LINK OD2 ASP B 304 CA CA B 501 1555 1555 2.61 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