HEADER TRANSPORT PROTEIN 08-JUL-10 2L0J TITLE SOLID STATE NMR STRUCTURE OF THE M2 PROTON CHANNEL FROM INFLUENZA A TITLE 2 VIRUS IN HYDRATED LIPID BILAYER COMPND MOL_ID: 1; COMPND 2 MOLECULE: MATRIX PROTEIN 2; COMPND 3 CHAIN: A, B, C, D; COMPND 4 FRAGMENT: UNP RESIDUE 22-62; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: INFLUENZA A VIRUS; SOURCE 3 ORGANISM_TAXID: 381517; SOURCE 4 STRAIN: A/UDORN/307/1972; SOURCE 5 GENE: M; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_VECTOR: MODIFIED PET30 KEYWDS M2 PROTON CHANNEL, LIPID BILAYER, SOLID STATE NMR, INFLUENZA, KEYWDS 2 CONDUCTANCE DOMAIN, MEMBRANE DOMAIN, VIRAL PROTEIN, TRANSPORT KEYWDS 3 PROTEIN EXPDTA SOLID-STATE NMR NUMMDL 8 AUTHOR M.SHARMA,M.YI,H.DONG,H.QIN,E.PETERSON,D.D.BUSATH,H.X.ZHOU,T.A.CROSS REVDAT 2 01-MAY-24 2L0J 1 REMARK SEQADV REVDAT 1 03-NOV-10 2L0J 0 JRNL AUTH M.SHARMA,M.YI,H.DONG,H.QIN,E.PETERSON,D.D.BUSATH,H.X.ZHOU, JRNL AUTH 2 T.A.CROSS JRNL TITL INSIGHT INTO THE MECHANISM OF THE INFLUENZA A PROTON CHANNEL JRNL TITL 2 FROM A STRUCTURE IN A LIPID BILAYER. JRNL REF SCIENCE V. 330 509 2010 JRNL REFN ISSN 0036-8075 JRNL PMID 20966252 JRNL DOI 10.1126/SCIENCE.1191750 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR NIH 2.23, NAMD 2.7B REMARK 3 AUTHORS : SCHWIETERS, KUSZEWSKI, TJANDRA AND CLORE (X-PLOR REMARK 3 NIH), PHILLIPS,BRAUN,WANG,GUMBART ,TAJKHORSHID , REMARK 3 VILLA ,CHIPOT ,SKEEL, KALE , SCHULTEN (NAMD) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: MONOMER STRUCTURE WAS CALCULATED USING REMARK 3 SOLID STATE NMR CONSTRAINTS BY SIMULATED ANNEALING. A REMARK 3 PRELIMINARY MODEL FOR TETRAMER WAS ASSEMBLED PLACING FOUR COPIES REMARK 3 OF MONOMER CONSISTENT WITH NMR DERIVED TILT ANGLES AND ROTATION. REMARK 3 THE MODEL WAS ANNEALED AGAIN BY INCORPORATING DISTANCE AND REMARK 3 ORIENTATIONAL RESTRAINTS.THE TETRAMER MODEL WAS PLACED IN REMARK 3 EXPLICIT HYDRATED LIPID BILAYER AND TETRAMER MODEL WAS REFINED REMARK 3 WITH SOLID STATE NMR ORIENTATIONAL RESTRAINTS USING NAMD. REMARK 3 FINALLY, THE HIS37-TRP41 GEOMETRY WAS OPTIMIZED USING QM/MM REMARK 3 CALCULATIONS KEEPING BACKBONE FIXED. NOTE THE HIS-HIS GEOMETRY REMARK 3 IS CONSISTENT WITH THE EXPERIMENTAL NMR OBSERVATION. REMARK 4 REMARK 4 2L0J COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-JUL-10. REMARK 100 THE DEPOSITION ID IS D_1000101803. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 303 REMARK 210 PH : 7.5 REMARK 210 IONIC STRENGTH : 10 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 5-15 MM [U-15N] ENTITY-1, 5-15 REMARK 210 MM [U-15N]-LEU ENTITY-2, 5-15 MM REMARK 210 [U-15N]-ILE ENTITY-3, 5-15 MM [U- REMARK 210 15N]-VAL ENTITY-4, 5-15 MM [U- REMARK 210 15N]-PHE ENTITY-5, 100% H2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : PISEMA REMARK 210 SPECTROMETER FIELD STRENGTH : 600 MHZ; 900 MHZ; 400 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE; DRX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : X-PLOR NIH 2.23, XWINNMR 3.6, REMARK 210 PIPATH REMARK 210 METHOD USED : SIMULATED ANNEALING AND REMARK 210 MOLECULAR DYNAMICS, MOLECULAR REMARK 210 DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 8 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 8 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LEAST REMARK 210 RESTRAINT VIOLATIONS REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: NULL REMARK 217 REMARK 217 SOLID STATE NMR STUDY REMARK 217 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLID REMARK 217 STATE NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 217 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 217 THESE RECORDS ARE MEANINGLESS. REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 465 SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 MODELS 1-8 REMARK 465 RES C SSSEQI REMARK 465 SER A 19 REMARK 465 ASN A 20 REMARK 465 ALA A 21 REMARK 465 SER B 19 REMARK 465 ASN B 20 REMARK 465 ALA B 21 REMARK 465 SER C 19 REMARK 465 ASN C 20 REMARK 465 ALA C 21 REMARK 465 SER D 19 REMARK 465 ASN D 20 REMARK 465 ALA D 21 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS 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 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 1 ARG B 45 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 1 PHE B 55 CB - CG - CD1 ANGL. DEV. = 4.4 DEGREES REMARK 500 1 ARG B 61 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 1 ARG C 45 NE - CZ - NH1 ANGL. DEV. = 4.3 DEGREES REMARK 500 1 PHE C 55 CB - CG - CD2 ANGL. DEV. = -4.5 DEGREES REMARK 500 1 PHE C 55 CB - CG - CD1 ANGL. DEV. = 4.6 DEGREES REMARK 500 1 ARG C 61 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 1 ARG D 61 NE - CZ - NH2 ANGL. DEV. = -3.0 DEGREES REMARK 500 2 ARG B 53 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 2 ARG C 45 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 2 PHE C 55 CB - CG - CD2 ANGL. DEV. = -4.6 DEGREES REMARK 500 2 PHE C 55 CB - CG - CD1 ANGL. DEV. = 4.2 DEGREES REMARK 500 3 ARG A 53 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 3 ARG A 53 NE - CZ - NH2 ANGL. DEV. = -3.5 DEGREES REMARK 500 3 ARG A 61 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 3 TYR B 52 CB - CG - CD2 ANGL. DEV. = -4.3 DEGREES REMARK 500 3 ARG B 61 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 3 ARG C 61 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 4 PHE A 54 CB - CG - CD1 ANGL. DEV. = 4.2 DEGREES REMARK 500 4 SER B 22 N - CA - CB ANGL. DEV. = 10.0 DEGREES REMARK 500 4 ARG B 45 NE - CZ - NH1 ANGL. DEV. = 4.1 DEGREES REMARK 500 4 PHE B 54 CB - CG - CD2 ANGL. DEV. = -4.4 DEGREES REMARK 500 4 PHE B 54 CB - CG - CD1 ANGL. DEV. = 4.6 DEGREES REMARK 500 4 ARG C 61 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 5 ARG B 45 NE - CZ - NH1 ANGL. DEV. = 3.8 DEGREES REMARK 500 5 ARG C 61 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 6 ARG A 45 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 6 ARG A 53 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 6 ARG B 53 NE - CZ - NH1 ANGL. DEV. = 4.1 DEGREES REMARK 500 6 ARG B 61 NE - CZ - NH1 ANGL. DEV. = 3.8 DEGREES REMARK 500 6 ARG C 53 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 6 ARG C 61 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 6 ARG D 53 NE - CZ - NH1 ANGL. DEV. = 3.8 DEGREES REMARK 500 6 ARG D 61 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 6 ARG D 61 NE - CZ - NH2 ANGL. DEV. = -3.4 DEGREES REMARK 500 7 ARG A 53 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 7 ARG D 45 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 7 ARG D 53 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 7 ARG D 61 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 7 ARG D 61 NE - CZ - NH2 ANGL. DEV. = -3.9 DEGREES REMARK 500 8 ARG A 45 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 8 TYR A 52 CB - CG - CD2 ANGL. DEV. = -3.7 DEGREES REMARK 500 8 ARG B 61 NE - CZ - NH2 ANGL. DEV. = -3.8 DEGREES REMARK 500 8 PHE C 47 CB - CG - CD2 ANGL. DEV. = -5.6 DEGREES REMARK 500 8 PHE C 47 CB - CG - CD1 ANGL. DEV. = 5.8 DEGREES REMARK 500 8 ARG C 53 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 8 ARG C 61 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 8 ARG D 45 NE - CZ - NH1 ANGL. DEV. = 3.5 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 1 SER A 23 49.94 -155.79 REMARK 500 1 PHE A 47 64.53 -113.47 REMARK 500 2 SER A 23 13.52 -160.22 REMARK 500 2 SER B 23 54.53 -155.64 REMARK 500 2 PHE C 48 -56.00 -20.91 REMARK 500 2 LYS C 49 -55.02 -29.96 REMARK 500 3 PHE A 47 54.16 -116.66 REMARK 500 3 PHE A 48 -38.72 -37.24 REMARK 500 3 SER B 23 40.46 -102.34 REMARK 500 3 PHE B 48 -25.11 -38.60 REMARK 500 3 PHE C 48 -39.33 -39.08 REMARK 500 3 PHE D 48 -28.87 -35.46 REMARK 500 4 SER B 23 44.29 -84.36 REMARK 500 4 LYS C 49 -48.66 -29.05 REMARK 500 5 SER A 23 15.98 -157.47 REMARK 500 5 PHE A 47 56.31 -110.55 REMARK 500 5 PHE B 48 -35.14 -34.99 REMARK 500 5 PHE D 48 -28.01 -39.92 REMARK 500 6 PHE C 47 49.47 -143.95 REMARK 500 7 SER B 23 62.69 -105.99 REMARK 500 7 SER D 23 66.73 -150.15 REMARK 500 7 PHE D 48 -18.61 -46.33 REMARK 500 8 PHE A 47 59.92 -110.45 REMARK 500 8 SER B 23 46.46 -84.60 REMARK 500 8 SER D 23 129.92 -173.24 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 1 ARG C 53 0.08 SIDE CHAIN REMARK 500 1 ARG D 45 0.12 SIDE CHAIN REMARK 500 2 ARG A 53 0.07 SIDE CHAIN REMARK 500 2 ARG B 45 0.08 SIDE CHAIN REMARK 500 2 ARG B 53 0.09 SIDE CHAIN REMARK 500 2 ARG C 45 0.12 SIDE CHAIN REMARK 500 3 ARG A 45 0.11 SIDE CHAIN REMARK 500 3 ARG B 45 0.10 SIDE CHAIN REMARK 500 4 TYR A 52 0.07 SIDE CHAIN REMARK 500 4 ARG A 53 0.08 SIDE CHAIN REMARK 500 5 ARG A 45 0.08 SIDE CHAIN REMARK 500 5 ARG B 53 0.10 SIDE CHAIN REMARK 500 5 ARG B 61 0.08 SIDE CHAIN REMARK 500 5 ARG D 45 0.08 SIDE CHAIN REMARK 500 7 ARG A 53 0.08 SIDE CHAIN REMARK 500 8 TYR B 52 0.07 SIDE CHAIN REMARK 500 8 ARG B 53 0.09 SIDE CHAIN REMARK 500 8 ARG B 61 0.09 SIDE CHAIN REMARK 500 8 ARG C 45 0.10 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL DBREF 2L0J A 22 62 UNP P63231 M2_I72A2 22 62 DBREF 2L0J B 22 62 UNP P63231 M2_I72A2 22 62 DBREF 2L0J C 22 62 UNP P63231 M2_I72A2 22 62 DBREF 2L0J D 22 62 UNP P63231 M2_I72A2 22 62 SEQADV 2L0J SER A 19 UNP P63231 EXPRESSION TAG SEQADV 2L0J ASN A 20 UNP P63231 EXPRESSION TAG SEQADV 2L0J ALA A 21 UNP P63231 EXPRESSION TAG SEQADV 2L0J SER A 50 UNP P63231 CYS 50 ENGINEERED MUTATION SEQADV 2L0J SER B 19 UNP P63231 EXPRESSION TAG SEQADV 2L0J ASN B 20 UNP P63231 EXPRESSION TAG SEQADV 2L0J ALA B 21 UNP P63231 EXPRESSION TAG SEQADV 2L0J SER B 50 UNP P63231 CYS 50 ENGINEERED MUTATION SEQADV 2L0J SER C 19 UNP P63231 EXPRESSION TAG SEQADV 2L0J ASN C 20 UNP P63231 EXPRESSION TAG SEQADV 2L0J ALA C 21 UNP P63231 EXPRESSION TAG SEQADV 2L0J SER C 50 UNP P63231 CYS 50 ENGINEERED MUTATION SEQADV 2L0J SER D 19 UNP P63231 EXPRESSION TAG SEQADV 2L0J ASN D 20 UNP P63231 EXPRESSION TAG SEQADV 2L0J ALA D 21 UNP P63231 EXPRESSION TAG SEQADV 2L0J SER D 50 UNP P63231 CYS 50 ENGINEERED MUTATION SEQRES 1 A 44 SER ASN ALA SER SER ASP PRO LEU VAL VAL ALA ALA SER SEQRES 2 A 44 ILE ILE GLY ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP SEQRES 3 A 44 ARG LEU PHE PHE LYS SER ILE TYR ARG PHE PHE GLU HIS SEQRES 4 A 44 GLY LEU LYS ARG GLY SEQRES 1 B 44 SER ASN ALA SER SER ASP PRO LEU VAL VAL ALA ALA SER SEQRES 2 B 44 ILE ILE GLY ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP SEQRES 3 B 44 ARG LEU PHE PHE LYS SER ILE TYR ARG PHE PHE GLU HIS SEQRES 4 B 44 GLY LEU LYS ARG GLY SEQRES 1 C 44 SER ASN ALA SER SER ASP PRO LEU VAL VAL ALA ALA SER SEQRES 2 C 44 ILE ILE GLY ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP SEQRES 3 C 44 ARG LEU PHE PHE LYS SER ILE TYR ARG PHE PHE GLU HIS SEQRES 4 C 44 GLY LEU LYS ARG GLY SEQRES 1 D 44 SER ASN ALA SER SER ASP PRO LEU VAL VAL ALA ALA SER SEQRES 2 D 44 ILE ILE GLY ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP SEQRES 3 D 44 ARG LEU PHE PHE LYS SER ILE TYR ARG PHE PHE GLU HIS SEQRES 4 D 44 GLY LEU LYS ARG GLY HELIX 1 1 SER A 23 PHE A 47 1 25 HELIX 2 2 PHE A 47 ARG A 61 1 15 HELIX 3 3 SER B 23 PHE B 47 1 25 HELIX 4 4 PHE B 47 GLY B 62 1 16 HELIX 5 5 ASP C 24 PHE C 47 1 24 HELIX 6 6 PHE C 48 GLY C 62 1 15 HELIX 7 7 SER D 23 PHE D 47 1 25 HELIX 8 8 PHE D 47 ARG D 61 1 15 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 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 MODEL 1