HEADER MEMBRANE PROTEIN 23-NOV-18 6I9D TITLE MLOK1 CONSENSUS STRUCTURE FROM SINGLE PARTICLE ANALYSIS OF 2D CRYSTALS 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 JAPONICUM (STRAIN LMG 29417 / SOURCE 3 CECT 9101 / MAFF 303099); SOURCE 4 ORGANISM_COMMON: MESORHIZOBIUM LOTI (STRAIN MAFF 303099); SOURCE 5 ORGANISM_TAXID: 266835; SOURCE 6 STRAIN: LMG 29417 / CECT 9101 / MAFF 303099; SOURCE 7 GENE: MLL3241; SOURCE 8 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS VOLTAGE-GATED POTASSIUM CHANNEL, CYCLIC NUCLEOTIDE-BINDING DOMAIN, KEYWDS 2 ION CHANNEL, ION TRANSPORT, MEMBRANE PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR R.RIGHETTO,N.BIYANI,J.KOWAL,M.CHAMI,H.STAHLBERG REVDAT 2 15-MAY-24 6I9D 1 REMARK LINK REVDAT 1 24-APR-19 6I9D 0 JRNL AUTH R.D.RIGHETTO,N.BIYANI,J.KOWAL,M.CHAMI,H.STAHLBERG JRNL TITL RETRIEVING HIGH-RESOLUTION INFORMATION FROM DISORDERED 2D JRNL TITL 2 CRYSTALS BY SINGLE-PARTICLE CRYO-EM. JRNL REF NAT COMMUN V. 10 1722 2019 JRNL REFN ESSN 2041-1723 JRNL PMID 30979902 JRNL DOI 10.1038/S41467-019-09661-5 REMARK 2 REMARK 2 RESOLUTION. 4.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : CTFFIND, CTFTILT, IMODFIT, FOCUS, REMARK 3 FREALIGN, FREALIGN, PHENIX REMARK 3 RECONSTRUCTION SCHEMA : FOURIER SPACE REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : 6EO1 REMARK 3 REFINEMENT SPACE : NULL REMARK 3 REFINEMENT PROTOCOL : FLEXIBLE 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) : 4.000 REMARK 3 NUMBER OF PARTICLES : 231688 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: ANGULAR ASSIGNMENTS AND X,Y SHIFTS WERE REFINED REMARK 3 USING A CUSTOM AUTO-REFINEMENT SCRIPT WRITTEN FOR FREALIGN REMARK 3 V9.11. MAXIMUM RESOLUTION USED FOR REFINEMENT WAS 7.52 A. REMARK 4 REMARK 4 6I9D COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 23-NOV-18. REMARK 100 THE DEPOSITION ID IS D_1200013050. 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 : 2D ARRAY REMARK 245 PARTICLE TYPE : POINT REMARK 245 NAME OF SAMPLE : MLOK1 POTASSIUM CHANNEL IN REMARK 245 LIPIDIC BILAYER OF 2D CRYSTALS 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 : 7.60 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : 270 REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : FEI TITAN KRIOS REMARK 245 DETECTOR TYPE : GATAN K2 SUMMIT (4K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 750.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 4300.00 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) : 4500.00 REMARK 245 ILLUMINATION MODE : OTHER REMARK 245 NOMINAL MAGNIFICATION : 50000 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 18370 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 68110 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -151.0 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 GLY A 208 OG1 THR A 212 2.02 REMARK 500 O GLY B 208 OG1 THR B 212 2.02 REMARK 500 O GLY D 208 OG1 THR D 212 2.02 REMARK 500 O GLY C 208 OG1 THR C 212 2.02 REMARK 500 O LEU C 56 OG1 THR C 59 2.06 REMARK 500 O LEU B 56 OG1 THR B 59 2.06 REMARK 500 O LEU D 56 OG1 THR D 59 2.06 REMARK 500 O LEU A 56 OG1 THR A 59 2.06 REMARK 500 O VAL C 170 OG SER C 174 2.13 REMARK 500 O VAL A 170 OG SER A 174 2.13 REMARK 500 O VAL B 170 OG SER B 174 2.13 REMARK 500 O VAL D 170 OG SER D 174 2.13 REMARK 500 O SER D 2 OG SER D 321 2.14 REMARK 500 O SER C 2 OG SER C 321 2.14 REMARK 500 O SER B 2 OG SER B 321 2.14 REMARK 500 O SER A 2 OG SER A 321 2.14 REMARK 500 O VAL D 195 OG SER D 198 2.19 REMARK 500 O VAL A 195 OG SER A 198 2.19 REMARK 500 O VAL B 195 OG SER B 198 2.19 REMARK 500 O VAL C 195 OG SER C 198 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ARG A 220 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 ARG B 220 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 ARG C 220 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 ARG D 220 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES 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 TYR A 10 57.66 -96.46 REMARK 500 ASP A 111 60.16 -102.83 REMARK 500 PHE A 114 -11.80 79.94 REMARK 500 SER A 174 34.17 -95.05 REMARK 500 THR A 176 -65.78 -93.42 REMARK 500 TYR A 178 -70.38 -60.26 REMARK 500 THR A 212 -70.31 -59.46 REMARK 500 PHE A 236 35.03 -91.51 REMARK 500 ILE A 262 -61.36 -107.09 REMARK 500 PRO A 306 -178.53 -66.08 REMARK 500 TYR B 10 57.75 -96.47 REMARK 500 ASP B 111 60.14 -102.84 REMARK 500 PHE B 114 -11.81 79.94 REMARK 500 SER B 174 34.18 -95.06 REMARK 500 THR B 176 -65.83 -93.36 REMARK 500 TYR B 178 -70.42 -60.19 REMARK 500 THR B 212 -70.38 -59.41 REMARK 500 PHE B 236 35.00 -91.46 REMARK 500 ILE B 262 -61.33 -107.15 REMARK 500 PRO B 306 -178.54 -66.01 REMARK 500 TYR C 10 57.71 -96.50 REMARK 500 ASP C 111 60.17 -102.94 REMARK 500 PHE C 114 -11.70 79.90 REMARK 500 SER C 174 34.18 -95.03 REMARK 500 THR C 176 -65.76 -93.34 REMARK 500 TYR C 178 -70.41 -60.21 REMARK 500 THR C 212 -70.39 -59.40 REMARK 500 PHE C 236 35.00 -91.48 REMARK 500 ILE C 262 -61.34 -107.08 REMARK 500 PRO C 306 -178.56 -66.02 REMARK 500 TYR D 10 57.74 -96.48 REMARK 500 ASP D 111 60.19 -102.86 REMARK 500 PHE D 114 -11.79 79.87 REMARK 500 SER D 174 34.15 -95.03 REMARK 500 THR D 176 -65.85 -93.36 REMARK 500 TYR D 178 -70.34 -60.25 REMARK 500 THR D 212 -70.33 -59.41 REMARK 500 PHE D 236 34.99 -91.48 REMARK 500 ILE D 262 -61.35 -107.10 REMARK 500 PRO D 306 -178.55 -66.10 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 402 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 175 O REMARK 620 2 THR A 176 O 77.8 REMARK 620 3 THR B 175 O 72.4 125.0 REMARK 620 4 THR B 176 O 100.2 63.3 77.7 REMARK 620 5 THR C 175 O 112.8 162.9 72.0 124.7 REMARK 620 6 THR C 176 O 163.2 95.5 100.0 63.2 77.7 REMARK 620 7 THR D 175 O 72.0 100.5 112.3 163.5 71.7 124.7 REMARK 620 8 THR D 176 O 124.5 63.2 163.0 95.9 99.9 63.3 77.8 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 401 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY A 177 O REMARK 620 2 TYR A 178 O 68.8 REMARK 620 3 GLY B 177 O 79.9 120.5 REMARK 620 4 TYR B 178 O 93.0 64.3 68.6 REMARK 620 5 GLY C 177 O 129.9 157.1 79.5 120.3 REMARK 620 6 TYR C 178 O 157.1 97.4 92.9 64.2 68.8 REMARK 620 7 GLY D 177 O 79.6 93.5 129.5 157.7 79.4 120.6 REMARK 620 8 TYR D 178 O 120.2 64.3 157.4 98.0 92.9 64.5 68.7 REMARK 620 N 1 2 3 4 5 6 7 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue K A 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue K A 402 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 6IAX RELATED DB: PDB REMARK 900 RELATED ID: 6QCY RELATED DB: PDB REMARK 900 RELATED ID: 6QCZ RELATED DB: PDB REMARK 900 RELATED ID: 6QD0 RELATED DB: PDB REMARK 900 RELATED ID: 6QD1 RELATED DB: PDB REMARK 900 RELATED ID: 6QD2 RELATED DB: PDB REMARK 900 RELATED ID: EMD-4432 RELATED DB: EMDB REMARK 900 MLOK1 CONSENSUS STRUCTURE FROM SINGLE PARTICLE ANALYSIS OF 2D REMARK 900 CRYSTALS REMARK 900 RELATED ID: 6QD3 RELATED DB: PDB REMARK 900 RELATED ID: 6QD4 RELATED DB: PDB REMARK 900 RELATED ID: EMD-4439 RELATED DB: EMDB DBREF 6I9D A 1 355 UNP Q98GN8 CNGK1_RHILO 1 355 DBREF 6I9D B 1 355 UNP Q98GN8 CNGK1_RHILO 1 355 DBREF 6I9D C 1 355 UNP Q98GN8 CNGK1_RHILO 1 355 DBREF 6I9D 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 A 401 1 HET K A 402 1 HETNAM K POTASSIUM ION FORMUL 5 K 2(K 1+) HELIX 1 AA1 PRO A 12 LEU A 17 1 6 HELIX 2 AA2 LEU A 17 ALA A 24 1 8 HELIX 3 AA3 ALA A 24 THR A 29 1 6 HELIX 4 AA4 SER A 34 LEU A 61 1 28 HELIX 5 AA5 ARG A 71 ASP A 92 1 22 HELIX 6 AA6 SER A 94 CYS A 101 5 8 HELIX 7 AA7 LEU A 105 ASP A 111 1 7 HELIX 8 AA8 PHE A 114 ARG A 152 1 39 HELIX 9 AA9 GLN A 155 GLY A 160 1 6 HELIX 10 AB1 ILE A 162 SER A 174 1 13 HELIX 11 AB2 PHE A 186 ARG A 225 1 40 HELIX 12 AB3 GLY A 240 ARG A 249 1 10 HELIX 13 AB4 GLY A 297 ILE A 302 1 6 HELIX 14 AB5 SER A 324 SER A 334 1 11 HELIX 15 AB6 SER A 334 ALA A 352 1 19 HELIX 16 AB7 PRO B 12 LEU B 17 1 6 HELIX 17 AB8 LEU B 17 ALA B 24 1 8 HELIX 18 AB9 ALA B 24 THR B 29 1 6 HELIX 19 AC1 SER B 34 LEU B 61 1 28 HELIX 20 AC2 ARG B 71 ASP B 92 1 22 HELIX 21 AC3 SER B 94 CYS B 101 5 8 HELIX 22 AC4 LEU B 105 ASP B 111 1 7 HELIX 23 AC5 PHE B 114 ARG B 152 1 39 HELIX 24 AC6 GLN B 155 GLY B 160 1 6 HELIX 25 AC7 ILE B 162 SER B 174 1 13 HELIX 26 AC8 PHE B 186 ARG B 225 1 40 HELIX 27 AC9 GLY B 240 ARG B 249 1 10 HELIX 28 AD1 GLY B 297 ILE B 302 1 6 HELIX 29 AD2 SER B 324 SER B 334 1 11 HELIX 30 AD3 SER B 334 ALA B 352 1 19 HELIX 31 AD4 PRO C 12 LEU C 17 1 6 HELIX 32 AD5 LEU C 17 ALA C 24 1 8 HELIX 33 AD6 ALA C 24 THR C 29 1 6 HELIX 34 AD7 SER C 34 LEU C 61 1 28 HELIX 35 AD8 ARG C 71 ASP C 92 1 22 HELIX 36 AD9 SER C 94 CYS C 101 5 8 HELIX 37 AE1 LEU C 105 ASP C 111 1 7 HELIX 38 AE2 PHE C 114 ARG C 152 1 39 HELIX 39 AE3 GLN C 155 GLY C 160 1 6 HELIX 40 AE4 ILE C 162 SER C 174 1 13 HELIX 41 AE5 PHE C 186 ARG C 225 1 40 HELIX 42 AE6 GLY C 240 ARG C 249 1 10 HELIX 43 AE7 GLY C 297 ILE C 302 1 6 HELIX 44 AE8 SER C 324 SER C 334 1 11 HELIX 45 AE9 SER C 334 ALA C 352 1 19 HELIX 46 AF1 PRO D 12 LEU D 17 1 6 HELIX 47 AF2 LEU D 17 ALA D 24 1 8 HELIX 48 AF3 ALA D 24 THR D 29 1 6 HELIX 49 AF4 SER D 34 LEU D 61 1 28 HELIX 50 AF5 ARG D 71 ASP D 92 1 22 HELIX 51 AF6 SER D 94 CYS D 101 5 8 HELIX 52 AF7 LEU D 105 ASP D 111 1 7 HELIX 53 AF8 PHE D 114 ARG D 152 1 39 HELIX 54 AF9 GLN D 155 GLY D 160 1 6 HELIX 55 AG1 ILE D 162 SER D 174 1 13 HELIX 56 AG2 PHE D 186 ARG D 225 1 40 HELIX 57 AG3 GLY D 240 ARG D 249 1 10 HELIX 58 AG4 GLY D 297 ILE D 302 1 6 HELIX 59 AG5 SER D 324 SER D 334 1 11 HELIX 60 AG6 SER D 334 ALA D 352 1 19 SHEET 1 AA1 4 ARG A 254 VAL A 256 0 SHEET 2 AA1 4 VAL A 317 LEU A 319 -1 O LEU A 319 N ARG A 254 SHEET 3 AA1 4 ARG A 271 GLU A 277 -1 N GLU A 277 O SER A 318 SHEET 4 AA1 4 ALA A 294 PHE A 296 -1 O PHE A 296 N PHE A 273 SHEET 1 AA2 4 ARG A 254 VAL A 256 0 SHEET 2 AA2 4 VAL A 317 LEU A 319 -1 O LEU A 319 N ARG A 254 SHEET 3 AA2 4 ARG A 271 GLU A 277 -1 N GLU A 277 O SER A 318 SHEET 4 AA2 4 LEU A 322 HIS A 323 -1 O LEU A 322 N MET A 272 SHEET 1 AA3 3 VAL A 261 CYS A 263 0 SHEET 2 AA3 3 THR A 310 SER A 312 -1 O VAL A 311 N ILE A 262 SHEET 3 AA3 3 SER A 281 ALA A 283 -1 N ALA A 283 O THR A 310 SHEET 1 AA4 4 ARG B 254 VAL B 256 0 SHEET 2 AA4 4 VAL B 317 LEU B 319 -1 O LEU B 319 N ARG B 254 SHEET 3 AA4 4 ARG B 271 GLU B 277 -1 N GLU B 277 O SER B 318 SHEET 4 AA4 4 ALA B 294 PHE B 296 -1 O PHE B 296 N PHE B 273 SHEET 1 AA5 4 ARG B 254 VAL B 256 0 SHEET 2 AA5 4 VAL B 317 LEU B 319 -1 O LEU B 319 N ARG B 254 SHEET 3 AA5 4 ARG B 271 GLU B 277 -1 N GLU B 277 O SER B 318 SHEET 4 AA5 4 LEU B 322 HIS B 323 -1 O LEU B 322 N MET B 272 SHEET 1 AA6 3 VAL B 261 CYS B 263 0 SHEET 2 AA6 3 THR B 310 SER B 312 -1 O VAL B 311 N ILE B 262 SHEET 3 AA6 3 SER B 281 ALA B 283 -1 N ALA B 283 O THR B 310 SHEET 1 AA7 4 ARG C 254 VAL C 256 0 SHEET 2 AA7 4 VAL C 317 LEU C 319 -1 O LEU C 319 N ARG C 254 SHEET 3 AA7 4 ARG C 271 GLU C 277 -1 N GLU C 277 O SER C 318 SHEET 4 AA7 4 ALA C 294 PHE C 296 -1 O PHE C 296 N PHE C 273 SHEET 1 AA8 4 ARG C 254 VAL C 256 0 SHEET 2 AA8 4 VAL C 317 LEU C 319 -1 O LEU C 319 N ARG C 254 SHEET 3 AA8 4 ARG C 271 GLU C 277 -1 N GLU C 277 O SER C 318 SHEET 4 AA8 4 LEU C 322 HIS C 323 -1 O LEU C 322 N MET C 272 SHEET 1 AA9 3 VAL C 261 CYS C 263 0 SHEET 2 AA9 3 THR C 310 SER C 312 -1 O VAL C 311 N ILE C 262 SHEET 3 AA9 3 SER C 281 ALA C 283 -1 N ALA C 283 O THR C 310 SHEET 1 AB1 4 ARG D 254 VAL D 256 0 SHEET 2 AB1 4 VAL D 317 LEU D 319 -1 O LEU D 319 N ARG D 254 SHEET 3 AB1 4 ARG D 271 GLU D 277 -1 N GLU D 277 O SER D 318 SHEET 4 AB1 4 ALA D 294 PHE D 296 -1 O PHE D 296 N PHE D 273 SHEET 1 AB2 4 ARG D 254 VAL D 256 0 SHEET 2 AB2 4 VAL D 317 LEU D 319 -1 O LEU D 319 N ARG D 254 SHEET 3 AB2 4 ARG D 271 GLU D 277 -1 N GLU D 277 O SER D 318 SHEET 4 AB2 4 LEU D 322 HIS D 323 -1 O LEU D 322 N MET D 272 SHEET 1 AB3 3 VAL D 261 CYS D 263 0 SHEET 2 AB3 3 THR D 310 SER D 312 -1 O VAL D 311 N ILE D 262 SHEET 3 AB3 3 SER D 281 ALA D 283 -1 N ALA D 283 O THR D 310 LINK O THR A 175 K K A 402 1555 1555 2.78 LINK O THR A 176 K K A 402 1555 1555 2.79 LINK O GLY A 177 K K A 401 1555 1555 2.47 LINK O TYR A 178 K K A 401 1555 1555 2.81 LINK K K A 401 O GLY B 177 1555 1555 2.49 LINK K K A 401 O TYR B 178 1555 1555 2.81 LINK K K A 401 O GLY C 177 1555 1555 2.48 LINK K K A 401 O TYR C 178 1555 1555 2.80 LINK K K A 401 O GLY D 177 1555 1555 2.49 LINK K K A 401 O TYR D 178 1555 1555 2.80 LINK K K A 402 O THR B 175 1555 1555 2.79 LINK K K A 402 O THR B 176 1555 1555 2.78 LINK K K A 402 O THR C 175 1555 1555 2.79 LINK K K A 402 O THR C 176 1555 1555 2.78 LINK K K A 402 O THR D 175 1555 1555 2.79 LINK K K A 402 O THR D 176 1555 1555 2.77 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 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