HEADER TRANSPORT PROTEIN 19-OCT-21 7SK0 TITLE TWIK1 IN MSP1D1 LIPID NANODISC AT PH 7.4 COMPND MOL_ID: 1; COMPND 2 MOLECULE: POTASSIUM CHANNEL SUBFAMILY K MEMBER 1; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: INWARD RECTIFYING POTASSIUM CHANNEL PROTEIN TWIK-1,RTWIK, COMPND 5 POTASSIUM CHANNEL K2P1; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS; SOURCE 3 ORGANISM_COMMON: RAT; SOURCE 4 ORGANISM_TAXID: 10116; SOURCE 5 GENE: KCNK1; SOURCE 6 EXPRESSION_SYSTEM: KOMAGATAELLA PASTORIS; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 4922 KEYWDS K+ ION CHANNEL, PH, TRANSPORT PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR T.S.TURNEY,S.G.BROHAWN REVDAT 2 22-JUN-22 7SK0 1 JRNL REVDAT 1 24-NOV-21 7SK0 0 JRNL AUTH T.S.TURNEY,V.LI,S.G.BROHAWN JRNL TITL STRUCTURAL BASIS FOR PH-GATING OF THE K + CHANNEL TWIK1 AT JRNL TITL 2 THE SELECTIVITY FILTER. JRNL REF NAT COMMUN V. 13 3232 2022 JRNL REFN ESSN 2041-1723 JRNL PMID 35680900 JRNL DOI 10.1038/S41467-022-30853-Z REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH T.S.TURNEY,V.LI,S.G.BROHAWN REMARK 1 TITL STRUCTURAL BASIS FOR PH-GATING OF THE K + CHANNEL TWIK1 AT REMARK 1 TITL 2 THE SELECTIVITY FILTER REMARK 1 REF BIORXIV 2021 REMARK 1 REFN REMARK 1 DOI 10.1101/2021.11.09.467928 REMARK 2 REMARK 2 RESOLUTION. 3.33 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : RELION, CTFFIND, COOT, CRYOSPARC, REMARK 3 RELION, RELION, RELION, PHENIX REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : 3UKM REMARK 3 REFINEMENT SPACE : REAL REMARK 3 REFINEMENT PROTOCOL : NULL REMARK 3 REFINEMENT TARGET : CORRELATION COEFFICIENT REMARK 3 OVERALL ANISOTROPIC B VALUE : 147.120 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) : 3.330 REMARK 3 NUMBER OF PARTICLES : 92438 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 7SK0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-OCT-21. REMARK 100 THE DEPOSITION ID IS D_1000260434. 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 : TWIK1 IN MSP1D1 LIPID NANODISC REMARK 245 AT PH 7.4 REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : NULL 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 : NULL REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : FEI TALOS ARCTICA REMARK 245 DETECTOR TYPE : GATAN K3 (6K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : NULL REMARK 245 MAXIMUM DEFOCUS (NM) : NULL REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : NULL REMARK 245 IMAGING MODE : BRIGHT FIELD REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 4971.50 REMARK 245 ILLUMINATION MODE : FLOOD BEAM REMARK 245 NOMINAL MAGNIFICATION : NULL REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : FIELD EMISSION GUN REMARK 245 ACCELERATION VOLTAGE (KV) : 200 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: DIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 A 1 REMARK 465 LEU A 2 REMARK 465 GLN A 3 REMARK 465 SER A 4 REMARK 465 LEU A 5 REMARK 465 ALA A 6 REMARK 465 GLY A 7 REMARK 465 SER A 8 REMARK 465 SER A 9 REMARK 465 CYS A 10 REMARK 465 VAL A 11 REMARK 465 ARG A 12 REMARK 465 LEU A 13 REMARK 465 VAL A 14 REMARK 465 GLU A 15 REMARK 465 ARG A 16 REMARK 465 HIS A 17 REMARK 465 ARG A 18 REMARK 465 SER A 19 REMARK 465 ALA A 20 REMARK 465 TRP A 21 REMARK 465 CYS A 22 REMARK 465 PHE A 23 REMARK 465 TYR A 281 REMARK 465 VAL A 282 REMARK 465 LYS A 283 REMARK 465 LYS A 284 REMARK 465 ASP A 285 REMARK 465 LYS A 286 REMARK 465 ASP A 287 REMARK 465 GLU A 288 REMARK 465 ASP A 289 REMARK 465 GLN A 290 REMARK 465 VAL A 291 REMARK 465 HIS A 292 REMARK 465 ILE A 293 REMARK 465 MET A 294 REMARK 465 GLU A 295 REMARK 465 HIS A 296 REMARK 465 ASP A 297 REMARK 465 GLN A 298 REMARK 465 LEU A 299 REMARK 465 SER A 300 REMARK 465 PHE A 301 REMARK 465 SER A 302 REMARK 465 SER A 303 REMARK 465 ILE A 304 REMARK 465 THR A 305 REMARK 465 GLU A 306 REMARK 465 GLN A 307 REMARK 465 ALA A 308 REMARK 465 ALA A 309 REMARK 465 GLY A 310 REMARK 465 LEU A 311 REMARK 465 LYS A 312 REMARK 465 GLU A 313 REMARK 465 GLU A 314 REMARK 465 GLN A 315 REMARK 465 LYS A 316 REMARK 465 GLN A 317 REMARK 465 ASN A 318 REMARK 465 GLU A 319 REMARK 465 PRO A 320 REMARK 465 PHE A 321 REMARK 465 VAL A 322 REMARK 465 ALA A 323 REMARK 465 SER A 324 REMARK 465 GLN A 325 REMARK 465 SER A 326 REMARK 465 PRO A 327 REMARK 465 PRO A 328 REMARK 465 TYR A 329 REMARK 465 GLU A 330 REMARK 465 ASP A 331 REMARK 465 GLY A 332 REMARK 465 SER A 333 REMARK 465 ALA A 334 REMARK 465 ASN A 335 REMARK 465 HIS A 336 REMARK 465 MET B 1 REMARK 465 LEU B 2 REMARK 465 GLN B 3 REMARK 465 SER B 4 REMARK 465 LEU B 5 REMARK 465 ALA B 6 REMARK 465 GLY B 7 REMARK 465 SER B 8 REMARK 465 SER B 9 REMARK 465 CYS B 10 REMARK 465 VAL B 11 REMARK 465 ARG B 12 REMARK 465 LEU B 13 REMARK 465 VAL B 14 REMARK 465 GLU B 15 REMARK 465 ARG B 16 REMARK 465 HIS B 17 REMARK 465 ARG B 18 REMARK 465 SER B 19 REMARK 465 ALA B 20 REMARK 465 TRP B 21 REMARK 465 CYS B 22 REMARK 465 PHE B 23 REMARK 465 TYR B 281 REMARK 465 VAL B 282 REMARK 465 LYS B 283 REMARK 465 LYS B 284 REMARK 465 ASP B 285 REMARK 465 LYS B 286 REMARK 465 ASP B 287 REMARK 465 GLU B 288 REMARK 465 ASP B 289 REMARK 465 GLN B 290 REMARK 465 VAL B 291 REMARK 465 HIS B 292 REMARK 465 ILE B 293 REMARK 465 MET B 294 REMARK 465 GLU B 295 REMARK 465 HIS B 296 REMARK 465 ASP B 297 REMARK 465 GLN B 298 REMARK 465 LEU B 299 REMARK 465 SER B 300 REMARK 465 PHE B 301 REMARK 465 SER B 302 REMARK 465 SER B 303 REMARK 465 ILE B 304 REMARK 465 THR B 305 REMARK 465 GLU B 306 REMARK 465 GLN B 307 REMARK 465 ALA B 308 REMARK 465 ALA B 309 REMARK 465 GLY B 310 REMARK 465 LEU B 311 REMARK 465 LYS B 312 REMARK 465 GLU B 313 REMARK 465 GLU B 314 REMARK 465 GLN B 315 REMARK 465 LYS B 316 REMARK 465 GLN B 317 REMARK 465 ASN B 318 REMARK 465 GLU B 319 REMARK 465 PRO B 320 REMARK 465 PHE B 321 REMARK 465 VAL B 322 REMARK 465 ALA B 323 REMARK 465 SER B 324 REMARK 465 GLN B 325 REMARK 465 SER B 326 REMARK 465 PRO B 327 REMARK 465 PRO B 328 REMARK 465 TYR B 329 REMARK 465 GLU B 330 REMARK 465 ASP B 331 REMARK 465 GLY B 332 REMARK 465 SER B 333 REMARK 465 ALA B 334 REMARK 465 ASN B 335 REMARK 465 HIS B 336 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 PHE B 280 CZ REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OG SER B 71 OE1 GLN B 74 2.00 REMARK 500 OG SER A 71 OE1 GLN A 74 2.00 REMARK 500 ND2 ASN A 87 O GLY B 229 2.14 REMARK 500 REMARK 500 REMARK: NULL 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 ASN A 95 19.25 55.98 REMARK 500 ALA A 96 -36.16 72.18 REMARK 500 THR A 117 -7.95 76.93 REMARK 500 THR A 225 3.47 87.33 REMARK 500 PHE A 241 51.46 -119.78 REMARK 500 ASN B 95 19.19 56.01 REMARK 500 ALA B 96 -36.25 72.27 REMARK 500 THR B 117 -7.90 76.91 REMARK 500 THR B 225 3.55 87.31 REMARK 500 PHE B 241 51.56 -119.81 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 A 404 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 117 O REMARK 620 2 THR A 117 OG1 66.5 REMARK 620 3 THR A 225 O 77.5 94.5 REMARK 620 4 THR B 117 O 109.2 167.6 73.0 REMARK 620 5 THR B 117 OG1 165.7 120.6 112.6 66.5 REMARK 620 6 THR B 225 O 72.2 112.0 126.0 76.2 93.6 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 405 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 117 O REMARK 620 2 THR A 118 O 67.7 REMARK 620 3 THR A 225 O 80.0 79.7 REMARK 620 4 ILE A 226 O 133.0 74.1 66.9 REMARK 620 5 THR B 117 O 130.2 145.0 75.7 73.5 REMARK 620 6 THR B 118 O 144.7 118.1 134.5 78.0 67.0 REMARK 620 7 THR B 225 O 75.4 134.3 119.9 150.1 80.2 79.0 REMARK 620 8 ILE B 226 O 74.7 78.2 151.3 123.1 131.8 73.0 66.5 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 402 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 118 O REMARK 620 2 GLY A 119 O 66.3 REMARK 620 3 ILE A 226 O 74.6 127.6 REMARK 620 4 GLY A 227 O 74.5 69.4 67.4 REMARK 620 5 THR B 118 O 122.1 151.8 79.3 137.4 REMARK 620 6 GLY B 119 O 155.3 118.6 85.3 84.6 66.3 REMARK 620 7 ILE B 226 O 78.4 82.7 122.6 147.0 73.9 125.4 REMARK 620 8 GLY B 227 O 135.3 83.0 147.5 125.2 73.2 68.1 65.6 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 406 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY A 119 O REMARK 620 2 TYR A 120 O 68.8 REMARK 620 3 GLY A 227 O 67.5 76.6 REMARK 620 4 LEU A 228 O 122.6 70.8 64.7 REMARK 620 5 GLY B 119 O 117.1 153.4 82.1 85.8 REMARK 620 6 TYR B 120 O 151.9 120.5 138.5 84.6 67.7 REMARK 620 7 GLY B 227 O 81.6 138.0 119.2 150.7 67.0 75.2 REMARK 620 8 LEU B 228 O 86.4 84.8 152.0 128.2 120.5 69.3 63.7 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 403 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 TYR A 120 O REMARK 620 2 TYR B 120 O 113.9 REMARK 620 N 1 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-25168 RELATED DB: EMDB REMARK 900 TWIK1 IN MSP1D1 LIPID NANODISC AT PH 7.4 DBREF 7SK0 A 1 336 UNP Q9Z2T2 KCNK1_RAT 1 336 DBREF 7SK0 B 1 336 UNP Q9Z2T2 KCNK1_RAT 1 336 SEQRES 1 A 336 MET LEU GLN SER LEU ALA GLY SER SER CYS VAL ARG LEU SEQRES 2 A 336 VAL GLU ARG HIS ARG SER ALA TRP CYS PHE GLY PHE LEU SEQRES 3 A 336 VAL LEU GLY TYR LEU LEU TYR LEU VAL PHE GLY ALA VAL SEQRES 4 A 336 VAL PHE SER SER VAL GLU LEU PRO TYR GLU ASP LEU LEU SEQRES 5 A 336 ARG GLN GLU LEU ARG LYS LEU LYS ARG ARG PHE LEU GLU SEQRES 6 A 336 GLU HIS GLU CYS LEU SER GLU PRO GLN LEU GLU GLN PHE SEQRES 7 A 336 LEU GLY ARG VAL LEU GLU ALA SER ASN TYR GLY VAL SER SEQRES 8 A 336 VAL LEU SER ASN ALA SER GLY ASN TRP ASN TRP ASP PHE SEQRES 9 A 336 THR SER ALA LEU PHE PHE ALA SER THR VAL LEU SER THR SEQRES 10 A 336 THR GLY TYR GLY HIS THR VAL PRO LEU SER ASP GLY GLY SEQRES 11 A 336 LYS ALA PHE CYS ILE ILE TYR SER VAL ILE GLY ILE PRO SEQRES 12 A 336 PHE THR LEU LEU PHE LEU THR ALA VAL VAL GLN ARG VAL SEQRES 13 A 336 THR VAL HIS VAL THR ARG ARG PRO VAL LEU TYR PHE HIS SEQRES 14 A 336 ILE ARG TRP GLY PHE SER LYS GLN VAL VAL ALA ILE VAL SEQRES 15 A 336 HIS ALA VAL LEU LEU GLY PHE VAL THR VAL SER CYS PHE SEQRES 16 A 336 PHE PHE ILE PRO ALA ALA VAL PHE SER VAL LEU GLU ASP SEQRES 17 A 336 ASP TRP ASN PHE LEU GLU SER PHE TYR PHE CYS PHE ILE SEQRES 18 A 336 SER LEU SER THR ILE GLY LEU GLY ASP TYR VAL PRO GLY SEQRES 19 A 336 GLU GLY TYR ASN GLN LYS PHE ARG GLU LEU TYR LYS ILE SEQRES 20 A 336 GLY ILE THR CYS TYR LEU LEU LEU GLY LEU ILE ALA MET SEQRES 21 A 336 LEU VAL VAL LEU GLU THR PHE CYS GLU LEU HIS GLU LEU SEQRES 22 A 336 LYS LYS PHE ARG LYS MET PHE TYR VAL LYS LYS ASP LYS SEQRES 23 A 336 ASP GLU ASP GLN VAL HIS ILE MET GLU HIS ASP GLN LEU SEQRES 24 A 336 SER PHE SER SER ILE THR GLU GLN ALA ALA GLY LEU LYS SEQRES 25 A 336 GLU GLU GLN LYS GLN ASN GLU PRO PHE VAL ALA SER GLN SEQRES 26 A 336 SER PRO PRO TYR GLU ASP GLY SER ALA ASN HIS SEQRES 1 B 336 MET LEU GLN SER LEU ALA GLY SER SER CYS VAL ARG LEU SEQRES 2 B 336 VAL GLU ARG HIS ARG SER ALA TRP CYS PHE GLY PHE LEU SEQRES 3 B 336 VAL LEU GLY TYR LEU LEU TYR LEU VAL PHE GLY ALA VAL SEQRES 4 B 336 VAL PHE SER SER VAL GLU LEU PRO TYR GLU ASP LEU LEU SEQRES 5 B 336 ARG GLN GLU LEU ARG LYS LEU LYS ARG ARG PHE LEU GLU SEQRES 6 B 336 GLU HIS GLU CYS LEU SER GLU PRO GLN LEU GLU GLN PHE SEQRES 7 B 336 LEU GLY ARG VAL LEU GLU ALA SER ASN TYR GLY VAL SER SEQRES 8 B 336 VAL LEU SER ASN ALA SER GLY ASN TRP ASN TRP ASP PHE SEQRES 9 B 336 THR SER ALA LEU PHE PHE ALA SER THR VAL LEU SER THR SEQRES 10 B 336 THR GLY TYR GLY HIS THR VAL PRO LEU SER ASP GLY GLY SEQRES 11 B 336 LYS ALA PHE CYS ILE ILE TYR SER VAL ILE GLY ILE PRO SEQRES 12 B 336 PHE THR LEU LEU PHE LEU THR ALA VAL VAL GLN ARG VAL SEQRES 13 B 336 THR VAL HIS VAL THR ARG ARG PRO VAL LEU TYR PHE HIS SEQRES 14 B 336 ILE ARG TRP GLY PHE SER LYS GLN VAL VAL ALA ILE VAL SEQRES 15 B 336 HIS ALA VAL LEU LEU GLY PHE VAL THR VAL SER CYS PHE SEQRES 16 B 336 PHE PHE ILE PRO ALA ALA VAL PHE SER VAL LEU GLU ASP SEQRES 17 B 336 ASP TRP ASN PHE LEU GLU SER PHE TYR PHE CYS PHE ILE SEQRES 18 B 336 SER LEU SER THR ILE GLY LEU GLY ASP TYR VAL PRO GLY SEQRES 19 B 336 GLU GLY TYR ASN GLN LYS PHE ARG GLU LEU TYR LYS ILE SEQRES 20 B 336 GLY ILE THR CYS TYR LEU LEU LEU GLY LEU ILE ALA MET SEQRES 21 B 336 LEU VAL VAL LEU GLU THR PHE CYS GLU LEU HIS GLU LEU SEQRES 22 B 336 LYS LYS PHE ARG LYS MET PHE TYR VAL LYS LYS ASP LYS SEQRES 23 B 336 ASP GLU ASP GLN VAL HIS ILE MET GLU HIS ASP GLN LEU SEQRES 24 B 336 SER PHE SER SER ILE THR GLU GLN ALA ALA GLY LEU LYS SEQRES 25 B 336 GLU GLU GLN LYS GLN ASN GLU PRO PHE VAL ALA SER GLN SEQRES 26 B 336 SER PRO PRO TYR GLU ASP GLY SER ALA ASN HIS HET OCT A 401 8 HET K A 402 1 HET K A 403 1 HET K A 404 1 HET K A 405 1 HET K A 406 1 HET OCT B 401 8 HETNAM OCT N-OCTANE HETNAM K POTASSIUM ION FORMUL 3 OCT 2(C8 H18) FORMUL 4 K 5(K 1+) HELIX 1 AA1 GLY A 24 HIS A 67 1 44 HELIX 2 AA2 SER A 71 GLY A 89 1 19 HELIX 3 AA3 ASP A 103 SER A 116 1 14 HELIX 4 AA4 SER A 127 THR A 161 1 35 HELIX 5 AA5 THR A 161 GLY A 173 1 13 HELIX 6 AA6 SER A 175 PHE A 196 1 22 HELIX 7 AA7 PHE A 196 GLU A 207 1 12 HELIX 8 AA8 ASN A 211 THR A 225 1 15 HELIX 9 AA9 PHE A 241 LEU A 270 1 30 HELIX 10 AB1 LEU A 270 PHE A 280 1 11 HELIX 11 AB2 PHE B 25 HIS B 67 1 43 HELIX 12 AB3 SER B 71 GLY B 89 1 19 HELIX 13 AB4 ASP B 103 SER B 116 1 14 HELIX 14 AB5 SER B 127 THR B 161 1 35 HELIX 15 AB6 THR B 161 GLY B 173 1 13 HELIX 16 AB7 SER B 175 PHE B 196 1 22 HELIX 17 AB8 PHE B 196 GLU B 207 1 12 HELIX 18 AB9 ASN B 211 THR B 225 1 15 HELIX 19 AC1 PHE B 241 LEU B 270 1 30 HELIX 20 AC2 LEU B 270 PHE B 280 1 11 SSBOND 1 CYS A 69 CYS B 69 1555 1555 2.04 LINK O THR A 117 K K A 404 1555 1555 3.04 LINK OG1 THR A 117 K K A 404 1555 1555 3.18 LINK O THR A 117 K K A 405 1555 1555 2.74 LINK O THR A 118 K K A 402 1555 1555 2.80 LINK O THR A 118 K K A 405 1555 1555 2.83 LINK O GLY A 119 K K A 402 1555 1555 2.78 LINK O GLY A 119 K K A 406 1555 1555 2.81 LINK O TYR A 120 K K A 403 1555 1555 3.47 LINK O TYR A 120 K K A 406 1555 1555 3.32 LINK O THR A 225 K K A 404 1555 1555 2.98 LINK O THR A 225 K K A 405 1555 1555 3.10 LINK O ILE A 226 K K A 402 1555 1555 2.93 LINK O ILE A 226 K K A 405 1555 1555 2.93 LINK O GLY A 227 K K A 402 1555 1555 2.89 LINK O GLY A 227 K K A 406 1555 1555 3.01 LINK O LEU A 228 K K A 406 1555 1555 3.43 LINK K K A 402 O THR B 118 1555 1555 2.80 LINK K K A 402 O GLY B 119 1555 1555 2.79 LINK K K A 402 O ILE B 226 1555 1555 2.98 LINK K K A 402 O GLY B 227 1555 1555 2.98 LINK K K A 403 O TYR B 120 1555 1555 3.49 LINK K K A 404 O THR B 117 1555 1555 3.06 LINK K K A 404 OG1 THR B 117 1555 1555 3.16 LINK K K A 404 O THR B 225 1555 1555 3.05 LINK K K A 405 O THR B 117 1555 1555 2.74 LINK K K A 405 O THR B 118 1555 1555 2.88 LINK K K A 405 O THR B 225 1555 1555 3.10 LINK K K A 405 O ILE B 226 1555 1555 2.96 LINK K K A 406 O GLY B 119 1555 1555 2.81 LINK K K A 406 O TYR B 120 1555 1555 3.40 LINK K K A 406 O GLY B 227 1555 1555 3.04 LINK K K A 406 O LEU B 228 1555 1555 3.49 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