HEADER MEMBRANE PROTEIN 08-OCT-17 6EO1 TITLE THE ELECTRON CRYSTALLOGRAPHY STRUCTURE OF THE CAMP-BOUND POTASSIUM TITLE 2 CHANNEL MLOK1 (PCO-REFINED) COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYCLIC NUCLEOTIDE-GATED POTASSIUM CHANNEL MLL3241; COMPND 3 CHAIN: A, B, C, D; COMPND 4 SYNONYM: MLOTIK1 CHANNEL; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MESORHIZOBIUM LOTI MAFF303099; SOURCE 3 ORGANISM_TAXID: 266835; SOURCE 4 ORGAN: MEMBRANE; SOURCE 5 GENE: MLL3241; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_CELL: E. COLI; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PASK90 KEYWDS MLOK1, MLOTIK1, POTASSIUM CHANNEL, CNBD, CYTOPLASMIC DOMAINS, PCO KEYWDS 2 REFINEMENT, MEMBRANE PROTEIN EXPDTA ELECTRON CRYSTALLOGRAPHY AUTHOR J.KOWAL,N.BIYANI,M.CHAMI,S.SCHERER,A.RZEPIELA,P.BAUMGARTNER, AUTHOR 2 V.UPADHYAY,C.NIMIGEAN,H.STAHLBERG REVDAT 3 15-MAY-24 6EO1 1 REMARK LINK REVDAT 2 10-JAN-18 6EO1 1 JRNL REVDAT 1 27-DEC-17 6EO1 0 JRNL AUTH J.KOWAL,N.BIYANI,M.CHAMI,S.SCHERER,A.J.RZEPIELA, JRNL AUTH 2 P.BAUMGARTNER,V.UPADHYAY,C.M.NIMIGEAN,H.STAHLBERG JRNL TITL HIGH-RESOLUTION CRYOELECTRON MICROSCOPY STRUCTURE OF THE JRNL TITL 2 CYCLIC NUCLEOTIDE-MODULATED POTASSIUM CHANNEL MLOK1 IN A JRNL TITL 3 LIPID BILAYER. JRNL REF STRUCTURE V. 26 20 2018 JRNL REFN ISSN 1878-4186 JRNL PMID 29249605 JRNL DOI 10.1016/J.STR.2017.11.012 REMARK 2 REMARK 2 RESOLUTION. 4.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.10.1_2155: REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 4.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 REMARK 3 MIN(FOBS/SIGMA_FOBS) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 23102 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : NULL REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 SOLVENT RADIUS : NULL REMARK 3 SHRINKAGE RADIUS : NULL REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : NULL REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : NULL REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.013 14812 REMARK 3 ANGLE : 0.934 23760 REMARK 3 CHIRALITY : 0.047 1784 REMARK 3 PLANARITY : 0.007 2372 REMARK 3 DIHEDRAL : 10.049 9316 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 6EO1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 10-OCT-17. REMARK 100 THE DEPOSITION ID IS D_1200006884. REMARK 240 REMARK 240 EXPERIMENTAL DETAILS REMARK 240 RECONSTRUCTION METHOD : CRYSTALLOGRAPHY REMARK 240 SAMPLE TYPE : 2D ARRAY REMARK 240 SPECIMEN TYPE : NULL REMARK 240 DATA ACQUISITION REMARK 240 DATE OF DATA COLLECTION : NULL REMARK 240 TEMPERATURE (KELVIN) : NULL REMARK 240 PH : NULL REMARK 240 NUMBER OF CRYSTALS USED : NULL REMARK 240 MICROSCOPE MODEL : FEI TITAN KRIOS REMARK 240 DETECTOR TYPE : GATAN K2 SUMMIT (4K X 4K) REMARK 240 ACCELERATION VOLTAGE (KV) : 300 REMARK 240 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 240 RESOLUTION RANGE HIGH (A) : NULL REMARK 240 RESOLUTION RANGE LOW (A) : NULL REMARK 240 DATA SCALING SOFTWARE : NULL REMARK 240 COMPLETENESS FOR RANGE (%) : NULL REMARK 240 DATA REDUNDANCY : NULL REMARK 240 IN THE HIGHEST RESOLUTION SHELL REMARK 240 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) :NULL REMARK 240 HIGHEST RESOLUTION SHELL, RANGE LOW (A) :NULL REMARK 240 COMPLETENESS FOR SHELL (%) : NULL REMARK 240 DATA REDUNDANCY IN SHELL : NULL REMARK 240 R MERGE FOR SHELL (I) : NULL REMARK 240 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 240 SOFTWARE USED : NULL REMARK 240 STARTING MODEL : NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 14990 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 73090 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -107.0 KCAL/MOL 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 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 O ALA D 253 HH11 ARG D 254 1.47 REMARK 500 O ALA B 253 HH11 ARG B 254 1.47 REMARK 500 O ALA C 253 HH11 ARG C 254 1.47 REMARK 500 O ALA A 253 HH11 ARG A 254 1.47 REMARK 500 O MET C 299 HG SER C 303 1.52 REMARK 500 O MET D 299 HG SER D 303 1.52 REMARK 500 O MET A 299 HG SER A 303 1.52 REMARK 500 O MET B 299 HG SER B 303 1.52 REMARK 500 H SER A 281 O SER A 312 1.54 REMARK 500 H SER C 281 O SER C 312 1.54 REMARK 500 H SER B 281 O SER B 312 1.54 REMARK 500 H SER D 281 O SER D 312 1.54 REMARK 500 H GLY C 266 O ARG C 307 1.55 REMARK 500 H GLY B 266 O ARG B 307 1.55 REMARK 500 H GLY D 266 O ARG D 307 1.55 REMARK 500 H GLY A 266 O ARG A 307 1.55 REMARK 500 HG1 THR C 255 O VAL C 317 1.58 REMARK 500 HG1 THR B 255 O VAL B 317 1.58 REMARK 500 HG1 THR D 255 O VAL D 317 1.58 REMARK 500 HG1 THR A 255 O VAL A 317 1.58 REMARK 500 O MET C 299 OG SER C 303 1.87 REMARK 500 O MET B 299 OG SER B 303 1.87 REMARK 500 O MET A 299 OG SER A 303 1.87 REMARK 500 O MET D 299 OG SER D 303 1.87 REMARK 500 O LEU D 56 OG1 THR D 59 1.95 REMARK 500 O LEU C 56 OG1 THR C 59 1.95 REMARK 500 O LEU A 56 OG1 THR A 59 1.95 REMARK 500 O LEU B 56 OG1 THR B 59 1.95 REMARK 500 O LEU D 129 OG1 THR D 133 2.01 REMARK 500 O LEU C 129 OG1 THR C 133 2.01 REMARK 500 O LEU B 129 OG1 THR B 133 2.01 REMARK 500 O LEU A 129 OG1 THR A 133 2.01 REMARK 500 O ARG B 71 NZ LYS B 74 2.03 REMARK 500 O ARG C 71 NZ LYS C 74 2.03 REMARK 500 O ARG A 71 NZ LYS A 74 2.03 REMARK 500 O ARG D 71 NZ LYS D 74 2.03 REMARK 500 O THR A 59 N ARG A 63 2.08 REMARK 500 O THR B 59 N ARG B 63 2.08 REMARK 500 O THR C 59 N ARG C 63 2.08 REMARK 500 O THR D 59 N ARG D 63 2.08 REMARK 500 O GLU B 151 N GLY B 160 2.11 REMARK 500 O GLU C 151 N GLY C 160 2.11 REMARK 500 O GLU D 151 N GLY D 160 2.11 REMARK 500 O GLU A 151 N GLY A 160 2.11 REMARK 500 O SER D 37 N LEU D 41 2.11 REMARK 500 O SER C 37 N LEU C 41 2.11 REMARK 500 O SER A 37 N LEU A 41 2.11 REMARK 500 O SER B 37 N LEU B 41 2.12 REMARK 500 O LYS B 158 NE2 GLN B 164 2.12 REMARK 500 O LYS D 158 NE2 GLN D 164 2.12 REMARK 500 REMARK 500 THIS ENTRY HAS 64 CLOSE CONTACTS 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 ALA A 26 -71.63 -57.74 REMARK 500 PRO A 31 56.82 -69.73 REMARK 500 ASP A 32 75.26 48.36 REMARK 500 SER A 34 -72.87 -79.49 REMARK 500 ARG A 36 -69.89 -134.89 REMARK 500 ASP A 70 -70.62 -42.19 REMARK 500 LEU A 83 -62.88 -91.08 REMARK 500 LEU A 86 -70.29 -58.11 REMARK 500 SER A 94 -176.71 -64.41 REMARK 500 GLU A 125 -115.82 57.56 REMARK 500 GLU A 157 -79.87 -122.82 REMARK 500 PHE A 159 -168.87 -77.74 REMARK 500 THR A 176 -64.67 -95.77 REMARK 500 MET A 196 -70.06 -55.74 REMARK 500 SER A 198 -70.18 -73.68 REMARK 500 ALA A 253 -179.59 -174.27 REMARK 500 ARG A 271 179.01 177.85 REMARK 500 LEU A 301 -71.24 -57.50 REMARK 500 ALA A 353 -68.17 -133.09 REMARK 500 ALA B 26 -71.56 -57.67 REMARK 500 PRO B 31 56.86 -69.72 REMARK 500 ASP B 32 75.33 48.21 REMARK 500 SER B 34 -72.89 -79.49 REMARK 500 ARG B 36 -69.90 -134.98 REMARK 500 ASP B 70 -70.68 -42.24 REMARK 500 LEU B 83 -62.90 -91.11 REMARK 500 LEU B 86 -70.28 -58.02 REMARK 500 SER B 94 -176.79 -64.40 REMARK 500 GLU B 125 -115.81 57.63 REMARK 500 GLU B 157 -79.91 -122.75 REMARK 500 PHE B 159 -168.81 -77.76 REMARK 500 THR B 176 -64.72 -95.68 REMARK 500 MET B 196 -70.04 -55.73 REMARK 500 SER B 198 -70.30 -73.58 REMARK 500 ALA B 253 -179.60 -174.24 REMARK 500 ARG B 271 179.06 177.86 REMARK 500 LEU B 301 -71.22 -57.54 REMARK 500 ALA B 353 -68.23 -133.09 REMARK 500 ALA C 26 -71.68 -57.54 REMARK 500 PRO C 31 56.87 -69.77 REMARK 500 ASP C 32 75.25 48.29 REMARK 500 SER C 34 -72.87 -79.42 REMARK 500 ARG C 36 -69.89 -134.99 REMARK 500 ASP C 70 -70.57 -42.26 REMARK 500 LEU C 83 -62.77 -91.20 REMARK 500 LEU C 86 -70.28 -58.06 REMARK 500 SER C 94 -176.78 -64.43 REMARK 500 GLU C 125 -115.85 57.57 REMARK 500 GLU C 157 -80.00 -122.70 REMARK 500 PHE C 159 -168.82 -77.72 REMARK 500 REMARK 500 THIS ENTRY HAS 75 RAMACHANDRAN OUTLIERS. REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 GLN A 155 PRO A 156 -149.40 REMARK 500 GLN B 155 PRO B 156 -149.35 REMARK 500 GLN C 155 PRO C 156 -149.41 REMARK 500 GLN D 155 PRO D 156 -149.38 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 C 402 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 175 O REMARK 620 2 THR A 176 O 84.3 REMARK 620 3 THR B 175 O 60.2 121.0 REMARK 620 4 THR B 176 O 110.1 64.7 84.1 REMARK 620 5 THR C 175 O 90.0 173.0 58.8 121.4 REMARK 620 6 THR C 176 O 169.9 98.2 110.6 62.8 88.1 REMARK 620 7 THR D 175 O 60.4 112.7 90.1 170.5 60.7 126.5 REMARK 620 8 THR D 176 O 123.8 66.1 172.8 99.0 114.3 65.8 87.6 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K C 401 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY A 177 O REMARK 620 2 GLY B 177 O 75.2 REMARK 620 3 GLY C 177 O 116.8 70.9 REMARK 620 4 GLY D 177 O 77.0 116.9 73.4 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue K C 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue K C 402 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-3907 RELATED DB: EMDB REMARK 900 THE ELECTRON CRYSTALLOGRAPHY STRUCTURE OF THE CAMP-BOUND POTASSIUM REMARK 900 CHANNEL MLOK1 (PCO-REFINED) DBREF 6EO1 A 1 355 UNP Q98GN8 CNGK1_RHILO 1 355 DBREF 6EO1 B 1 355 UNP Q98GN8 CNGK1_RHILO 1 355 DBREF 6EO1 C 1 355 UNP Q98GN8 CNGK1_RHILO 1 355 DBREF 6EO1 D 1 355 UNP Q98GN8 CNGK1_RHILO 1 355 SEQRES 1 A 355 MET SER VAL LEU PRO PHE LEU ARG ILE TYR ALA PRO LEU SEQRES 2 A 355 ASN ALA VAL LEU ALA ALA PRO GLY LEU LEU ALA VAL ALA SEQRES 3 A 355 ALA LEU THR ILE PRO ASP MET SER GLY ARG SER ARG LEU SEQRES 4 A 355 ALA LEU ALA ALA LEU LEU ALA VAL ILE TRP GLY ALA TYR SEQRES 5 A 355 LEU LEU GLN LEU ALA ALA THR LEU LEU LYS ARG ARG ALA SEQRES 6 A 355 GLY VAL VAL ARG ASP ARG THR PRO LYS ILE ALA ILE ASP SEQRES 7 A 355 VAL LEU ALA VAL LEU VAL PRO LEU ALA ALA PHE LEU LEU SEQRES 8 A 355 ASP GLY SER PRO ASP TRP SER LEU TYR CYS ALA VAL TRP SEQRES 9 A 355 LEU LEU LYS PRO LEU ARG ASP SER THR PHE PHE PRO VAL SEQRES 10 A 355 LEU GLY ARG VAL LEU ALA ASN GLU ALA ARG ASN LEU ILE SEQRES 11 A 355 GLY VAL THR THR LEU PHE GLY VAL VAL LEU PHE ALA VAL SEQRES 12 A 355 ALA LEU ALA ALA TYR VAL ILE GLU ARG ASP ILE GLN PRO SEQRES 13 A 355 GLU LYS PHE GLY SER ILE PRO GLN ALA MET TRP TRP ALA SEQRES 14 A 355 VAL VAL THR LEU SER THR THR GLY TYR GLY ASP THR ILE SEQRES 15 A 355 PRO GLN SER PHE ALA GLY ARG VAL LEU ALA GLY ALA VAL SEQRES 16 A 355 MET MET SER GLY ILE GLY ILE PHE GLY LEU TRP ALA GLY SEQRES 17 A 355 ILE LEU ALA THR GLY PHE TYR GLN GLU VAL ARG ARG GLY SEQRES 18 A 355 ASP PHE VAL ARG ASN TRP GLN LEU VAL ALA ALA VAL PRO SEQRES 19 A 355 LEU PHE GLN LYS LEU GLY PRO ALA VAL LEU VAL GLU ILE SEQRES 20 A 355 VAL ARG ALA LEU ARG ALA ARG THR VAL PRO ALA GLY ALA SEQRES 21 A 355 VAL ILE CYS ARG ILE GLY GLU PRO GLY ASP ARG MET PHE SEQRES 22 A 355 PHE VAL VAL GLU GLY SER VAL SER VAL ALA THR PRO ASN SEQRES 23 A 355 PRO VAL GLU LEU GLY PRO GLY ALA PHE PHE GLY GLU MET SEQRES 24 A 355 ALA LEU ILE SER GLY GLU PRO ARG SER ALA THR VAL SER SEQRES 25 A 355 ALA ALA THR THR VAL SER LEU LEU SER LEU HIS SER ALA SEQRES 26 A 355 ASP PHE GLN MET LEU CYS SER SER SER PRO GLU ILE ALA SEQRES 27 A 355 GLU ILE PHE ARG LYS THR ALA LEU GLU ARG ARG GLY ALA SEQRES 28 A 355 ALA ALA SER ALA SEQRES 1 B 355 MET SER VAL LEU PRO PHE LEU ARG ILE TYR ALA PRO LEU SEQRES 2 B 355 ASN ALA VAL LEU ALA ALA PRO GLY LEU LEU ALA VAL ALA SEQRES 3 B 355 ALA LEU THR ILE PRO ASP MET SER GLY ARG SER ARG LEU SEQRES 4 B 355 ALA LEU ALA ALA LEU LEU ALA VAL ILE TRP GLY ALA TYR SEQRES 5 B 355 LEU LEU GLN LEU ALA ALA THR LEU LEU LYS ARG ARG ALA SEQRES 6 B 355 GLY VAL VAL ARG ASP ARG THR PRO LYS ILE ALA ILE ASP SEQRES 7 B 355 VAL LEU ALA VAL LEU VAL PRO LEU ALA ALA PHE LEU LEU SEQRES 8 B 355 ASP GLY SER PRO ASP TRP SER LEU TYR CYS ALA VAL TRP SEQRES 9 B 355 LEU LEU LYS PRO LEU ARG ASP SER THR PHE PHE PRO VAL SEQRES 10 B 355 LEU GLY ARG VAL LEU ALA ASN GLU ALA ARG ASN LEU ILE SEQRES 11 B 355 GLY VAL THR THR LEU PHE GLY VAL VAL LEU PHE ALA VAL SEQRES 12 B 355 ALA LEU ALA ALA TYR VAL ILE GLU ARG ASP ILE GLN PRO SEQRES 13 B 355 GLU LYS PHE GLY SER ILE PRO GLN ALA MET TRP TRP ALA SEQRES 14 B 355 VAL VAL THR LEU SER THR THR GLY TYR GLY ASP THR ILE SEQRES 15 B 355 PRO GLN SER PHE ALA GLY ARG VAL LEU ALA GLY ALA VAL SEQRES 16 B 355 MET MET SER GLY ILE GLY ILE PHE GLY LEU TRP ALA GLY SEQRES 17 B 355 ILE LEU ALA THR GLY PHE TYR GLN GLU VAL ARG ARG GLY SEQRES 18 B 355 ASP PHE VAL ARG ASN TRP GLN LEU VAL ALA ALA VAL PRO SEQRES 19 B 355 LEU PHE GLN LYS LEU GLY PRO ALA VAL LEU VAL GLU ILE SEQRES 20 B 355 VAL ARG ALA LEU ARG ALA ARG THR VAL PRO ALA GLY ALA SEQRES 21 B 355 VAL ILE CYS ARG ILE GLY GLU PRO GLY ASP ARG MET PHE SEQRES 22 B 355 PHE VAL VAL GLU GLY SER VAL SER VAL ALA THR PRO ASN SEQRES 23 B 355 PRO VAL GLU LEU GLY PRO GLY ALA PHE PHE GLY GLU MET SEQRES 24 B 355 ALA LEU ILE SER GLY GLU PRO ARG SER ALA THR VAL SER SEQRES 25 B 355 ALA ALA THR THR VAL SER LEU LEU SER LEU HIS SER ALA SEQRES 26 B 355 ASP PHE GLN MET LEU CYS SER SER SER PRO GLU ILE ALA SEQRES 27 B 355 GLU ILE PHE ARG LYS THR ALA LEU GLU ARG ARG GLY ALA SEQRES 28 B 355 ALA ALA SER ALA SEQRES 1 C 355 MET SER VAL LEU PRO PHE LEU ARG ILE TYR ALA PRO LEU SEQRES 2 C 355 ASN ALA VAL LEU ALA ALA PRO GLY LEU LEU ALA VAL ALA SEQRES 3 C 355 ALA LEU THR ILE PRO ASP MET SER GLY ARG SER ARG LEU SEQRES 4 C 355 ALA LEU ALA ALA LEU LEU ALA VAL ILE TRP GLY ALA TYR SEQRES 5 C 355 LEU LEU GLN LEU ALA ALA THR LEU LEU LYS ARG ARG ALA SEQRES 6 C 355 GLY VAL VAL ARG ASP ARG THR PRO LYS ILE ALA ILE ASP SEQRES 7 C 355 VAL LEU ALA VAL LEU VAL PRO LEU ALA ALA PHE LEU LEU SEQRES 8 C 355 ASP GLY SER PRO ASP TRP SER LEU TYR CYS ALA VAL TRP SEQRES 9 C 355 LEU LEU LYS PRO LEU ARG ASP SER THR PHE PHE PRO VAL SEQRES 10 C 355 LEU GLY ARG VAL LEU ALA ASN GLU ALA ARG ASN LEU ILE SEQRES 11 C 355 GLY VAL THR THR LEU PHE GLY VAL VAL LEU PHE ALA VAL SEQRES 12 C 355 ALA LEU ALA ALA TYR VAL ILE GLU ARG ASP ILE GLN PRO SEQRES 13 C 355 GLU LYS PHE GLY SER ILE PRO GLN ALA MET TRP TRP ALA SEQRES 14 C 355 VAL VAL THR LEU SER THR THR GLY TYR GLY ASP THR ILE SEQRES 15 C 355 PRO GLN SER PHE ALA GLY ARG VAL LEU ALA GLY ALA VAL SEQRES 16 C 355 MET MET SER GLY ILE GLY ILE PHE GLY LEU TRP ALA GLY SEQRES 17 C 355 ILE LEU ALA THR GLY PHE TYR GLN GLU VAL ARG ARG GLY SEQRES 18 C 355 ASP PHE VAL ARG ASN TRP GLN LEU VAL ALA ALA VAL PRO SEQRES 19 C 355 LEU PHE GLN LYS LEU GLY PRO ALA VAL LEU VAL GLU ILE SEQRES 20 C 355 VAL ARG ALA LEU ARG ALA ARG THR VAL PRO ALA GLY ALA SEQRES 21 C 355 VAL ILE CYS ARG ILE GLY GLU PRO GLY ASP ARG MET PHE SEQRES 22 C 355 PHE VAL VAL GLU GLY SER VAL SER VAL ALA THR PRO ASN SEQRES 23 C 355 PRO VAL GLU LEU GLY PRO GLY ALA PHE PHE GLY GLU MET SEQRES 24 C 355 ALA LEU ILE SER GLY GLU PRO ARG SER ALA THR VAL SER SEQRES 25 C 355 ALA ALA THR THR VAL SER LEU LEU SER LEU HIS SER ALA SEQRES 26 C 355 ASP PHE GLN MET LEU CYS SER SER SER PRO GLU ILE ALA SEQRES 27 C 355 GLU ILE PHE ARG LYS THR ALA LEU GLU ARG ARG GLY ALA SEQRES 28 C 355 ALA ALA SER ALA SEQRES 1 D 355 MET SER VAL LEU PRO PHE LEU ARG ILE TYR ALA PRO LEU SEQRES 2 D 355 ASN ALA VAL LEU ALA ALA PRO GLY LEU LEU ALA VAL ALA SEQRES 3 D 355 ALA LEU THR ILE PRO ASP MET SER GLY ARG SER ARG LEU SEQRES 4 D 355 ALA LEU ALA ALA LEU LEU ALA VAL ILE TRP GLY ALA TYR SEQRES 5 D 355 LEU LEU GLN LEU ALA ALA THR LEU LEU LYS ARG ARG ALA SEQRES 6 D 355 GLY VAL VAL ARG ASP ARG THR PRO LYS ILE ALA ILE ASP SEQRES 7 D 355 VAL LEU ALA VAL LEU VAL PRO LEU ALA ALA PHE LEU LEU SEQRES 8 D 355 ASP GLY SER PRO ASP TRP SER LEU TYR CYS ALA VAL TRP SEQRES 9 D 355 LEU LEU LYS PRO LEU ARG ASP SER THR PHE PHE PRO VAL SEQRES 10 D 355 LEU GLY ARG VAL LEU ALA ASN GLU ALA ARG ASN LEU ILE SEQRES 11 D 355 GLY VAL THR THR LEU PHE GLY VAL VAL LEU PHE ALA VAL SEQRES 12 D 355 ALA LEU ALA ALA TYR VAL ILE GLU ARG ASP ILE GLN PRO SEQRES 13 D 355 GLU LYS PHE GLY SER ILE PRO GLN ALA MET TRP TRP ALA SEQRES 14 D 355 VAL VAL THR LEU SER THR THR GLY TYR GLY ASP THR ILE SEQRES 15 D 355 PRO GLN SER PHE ALA GLY ARG VAL LEU ALA GLY ALA VAL SEQRES 16 D 355 MET MET SER GLY ILE GLY ILE PHE GLY LEU TRP ALA GLY SEQRES 17 D 355 ILE LEU ALA THR GLY PHE TYR GLN GLU VAL ARG ARG GLY SEQRES 18 D 355 ASP PHE VAL ARG ASN TRP GLN LEU VAL ALA ALA VAL PRO SEQRES 19 D 355 LEU PHE GLN LYS LEU GLY PRO ALA VAL LEU VAL GLU ILE SEQRES 20 D 355 VAL ARG ALA LEU ARG ALA ARG THR VAL PRO ALA GLY ALA SEQRES 21 D 355 VAL ILE CYS ARG ILE GLY GLU PRO GLY ASP ARG MET PHE SEQRES 22 D 355 PHE VAL VAL GLU GLY SER VAL SER VAL ALA THR PRO ASN SEQRES 23 D 355 PRO VAL GLU LEU GLY PRO GLY ALA PHE PHE GLY GLU MET SEQRES 24 D 355 ALA LEU ILE SER GLY GLU PRO ARG SER ALA THR VAL SER SEQRES 25 D 355 ALA ALA THR THR VAL SER LEU LEU SER LEU HIS SER ALA SEQRES 26 D 355 ASP PHE GLN MET LEU CYS SER SER SER PRO GLU ILE ALA SEQRES 27 D 355 GLU ILE PHE ARG LYS THR ALA LEU GLU ARG ARG GLY ALA SEQRES 28 D 355 ALA ALA SER ALA HET K C 401 1 HET K C 402 1 HETNAM K POTASSIUM ION FORMUL 5 K 2(K 1+) HELIX 1 AA1 PRO A 12 LEU A 28 1 17 HELIX 2 AA2 ARG A 36 ARG A 63 1 28 HELIX 3 AA3 PRO A 73 LEU A 91 1 19 HELIX 4 AA4 PRO A 95 CYS A 101 1 7 HELIX 5 AA5 ALA A 102 ASP A 111 5 10 HELIX 6 AA6 THR A 113 ASN A 124 1 12 HELIX 7 AA7 ARG A 127 ARG A 152 1 26 HELIX 8 AA8 SER A 161 SER A 174 1 14 HELIX 9 AA9 SER A 185 ALA A 231 1 47 HELIX 10 AB1 ALA A 232 VAL A 233 5 2 HELIX 11 AB2 PRO A 234 LYS A 238 5 5 HELIX 12 AB3 GLY A 240 LEU A 251 1 12 HELIX 13 AB4 GLY A 297 GLY A 304 1 8 HELIX 14 AB5 HIS A 323 SER A 332 1 10 HELIX 15 AB6 SER A 334 ALA A 352 1 19 HELIX 16 AB7 PRO B 12 LEU B 28 1 17 HELIX 17 AB8 ARG B 36 ARG B 63 1 28 HELIX 18 AB9 PRO B 73 LEU B 91 1 19 HELIX 19 AC1 PRO B 95 CYS B 101 1 7 HELIX 20 AC2 ALA B 102 ASP B 111 5 10 HELIX 21 AC3 THR B 113 ASN B 124 1 12 HELIX 22 AC4 ARG B 127 ARG B 152 1 26 HELIX 23 AC5 SER B 161 SER B 174 1 14 HELIX 24 AC6 SER B 185 ALA B 231 1 47 HELIX 25 AC7 ALA B 232 VAL B 233 5 2 HELIX 26 AC8 PRO B 234 LYS B 238 5 5 HELIX 27 AC9 GLY B 240 LEU B 251 1 12 HELIX 28 AD1 GLY B 297 GLY B 304 1 8 HELIX 29 AD2 HIS B 323 SER B 332 1 10 HELIX 30 AD3 SER B 334 ALA B 352 1 19 HELIX 31 AD4 PRO C 12 LEU C 28 1 17 HELIX 32 AD5 ARG C 36 ARG C 63 1 28 HELIX 33 AD6 PRO C 73 LEU C 91 1 19 HELIX 34 AD7 PRO C 95 CYS C 101 1 7 HELIX 35 AD8 ALA C 102 ASP C 111 5 10 HELIX 36 AD9 THR C 113 ASN C 124 1 12 HELIX 37 AE1 ARG C 127 ARG C 152 1 26 HELIX 38 AE2 SER C 161 SER C 174 1 14 HELIX 39 AE3 SER C 185 ALA C 231 1 47 HELIX 40 AE4 ALA C 232 VAL C 233 5 2 HELIX 41 AE5 PRO C 234 LYS C 238 5 5 HELIX 42 AE6 GLY C 240 LEU C 251 1 12 HELIX 43 AE7 GLY C 297 GLY C 304 1 8 HELIX 44 AE8 HIS C 323 SER C 332 1 10 HELIX 45 AE9 SER C 334 ALA C 352 1 19 HELIX 46 AF1 PRO D 12 LEU D 28 1 17 HELIX 47 AF2 ARG D 36 ARG D 63 1 28 HELIX 48 AF3 PRO D 73 LEU D 91 1 19 HELIX 49 AF4 PRO D 95 CYS D 101 1 7 HELIX 50 AF5 ALA D 102 ASP D 111 5 10 HELIX 51 AF6 THR D 113 ASN D 124 1 12 HELIX 52 AF7 ARG D 127 ARG D 152 1 26 HELIX 53 AF8 SER D 161 SER D 174 1 14 HELIX 54 AF9 SER D 185 ALA D 231 1 47 HELIX 55 AG1 ALA D 232 VAL D 233 5 2 HELIX 56 AG2 PRO D 234 LYS D 238 5 5 HELIX 57 AG3 GLY D 240 LEU D 251 1 12 HELIX 58 AG4 GLY D 297 GLY D 304 1 8 HELIX 59 AG5 HIS D 323 SER D 332 1 10 HELIX 60 AG6 SER D 334 ALA D 352 1 19 SHEET 1 AA1 2 THR A 255 VAL A 256 0 SHEET 2 AA1 2 VAL A 317 SER A 318 -1 O VAL A 317 N VAL A 256 SHEET 1 AA2 2 PHE A 273 PHE A 274 0 SHEET 2 AA2 2 PHE A 295 PHE A 296 -1 O PHE A 296 N PHE A 273 SHEET 1 AA3 2 SER A 281 VAL A 282 0 SHEET 2 AA3 2 VAL A 311 SER A 312 -1 O SER A 312 N SER A 281 SHEET 1 AA4 2 THR B 255 VAL B 256 0 SHEET 2 AA4 2 VAL B 317 SER B 318 -1 O VAL B 317 N VAL B 256 SHEET 1 AA5 2 PHE B 273 PHE B 274 0 SHEET 2 AA5 2 PHE B 295 PHE B 296 -1 O PHE B 296 N PHE B 273 SHEET 1 AA6 2 SER B 281 VAL B 282 0 SHEET 2 AA6 2 VAL B 311 SER B 312 -1 O SER B 312 N SER B 281 SHEET 1 AA7 2 THR C 255 VAL C 256 0 SHEET 2 AA7 2 VAL C 317 SER C 318 -1 O VAL C 317 N VAL C 256 SHEET 1 AA8 2 PHE C 273 PHE C 274 0 SHEET 2 AA8 2 PHE C 295 PHE C 296 -1 O PHE C 296 N PHE C 273 SHEET 1 AA9 2 SER C 281 VAL C 282 0 SHEET 2 AA9 2 VAL C 311 SER C 312 -1 O SER C 312 N SER C 281 SHEET 1 AB1 2 THR D 255 VAL D 256 0 SHEET 2 AB1 2 VAL D 317 SER D 318 -1 O VAL D 317 N VAL D 256 SHEET 1 AB2 2 PHE D 273 PHE D 274 0 SHEET 2 AB2 2 PHE D 295 PHE D 296 -1 O PHE D 296 N PHE D 273 SHEET 1 AB3 2 SER D 281 VAL D 282 0 SHEET 2 AB3 2 VAL D 311 SER D 312 -1 O SER D 312 N SER D 281 LINK O THR A 175 K K C 402 1555 1555 2.83 LINK O THR A 176 K K C 402 1555 1555 2.60 LINK O GLY A 177 K K C 401 1555 1555 2.61 LINK O THR B 175 K K C 402 1555 1555 2.83 LINK O THR B 176 K K C 402 1555 1555 2.61 LINK O GLY B 177 K K C 401 1555 1555 2.72 LINK O THR C 175 K K C 402 1555 1555 2.72 LINK O THR C 176 K K C 402 1555 1555 2.52 LINK O GLY C 177 K K C 401 1555 1555 2.69 LINK K K C 401 O GLY D 177 1555 1555 2.62 LINK K K C 402 O THR D 175 1555 1555 2.75 LINK K K C 402 O THR D 176 1555 1555 2.51 SITE 1 AC1 8 GLY A 177 TYR A 178 GLY B 177 TYR B 178 SITE 2 AC1 8 GLY C 177 TYR C 178 GLY D 177 TYR D 178 SITE 1 AC2 8 THR A 175 THR A 176 THR B 175 THR B 176 SITE 2 AC2 8 THR C 175 THR C 176 THR D 175 THR D 176 CRYST1 252.450 252.450 209.000 90.00 90.00 90.00 P 1 4 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 0.003961 0.000000 0.000000 0.00000 SCALE2 0.000000 0.003961 0.000000 0.00000 SCALE3 0.000000 0.000000 0.004785 0.00000