HEADER MEMBRANE PROTEIN 24-JAN-02 1GU8 TITLE SENSORY RHODOPSIN II COMPND MOL_ID: 1; COMPND 2 MOLECULE: SENSORY RHODOPSIN II; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: SR-II; COMPND 5 ENGINEERED: YES; COMPND 6 OTHER_DETAILS: MODEL 1 - GROUND STATE, MODEL 2 - K-STATE SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: NATRONOMONAS PHARAONIS; SOURCE 3 ORGANISM_COMMON: NATRONOBACTERIUM PHARAONIS; SOURCE 4 ORGANISM_TAXID: 2257; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ARCHAEAL RHODOPSIN, PHOTORECEPTOR, PHOTOTAXIS, MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION NUMMDL 2 AUTHOR K.EDMAN,A.ROYANT,P.NOLLERT,C.A.MAXWELL,E.PEBAY-PEYROULA,J.NAVARRO, AUTHOR 2 R.NEUTZE,E.M.LANDAU REVDAT 5 13-DEC-23 1GU8 1 REMARK REVDAT 4 27-JUN-12 1GU8 1 HEADER KEYWDS NUMMDL JRNL REVDAT 4 2 1 REMARK VERSN FORMUL REVDAT 3 24-FEB-09 1GU8 1 VERSN REVDAT 2 08-AUG-03 1GU8 1 COMPND REMARK DBREF SEQRES REVDAT 2 2 1 HET FORMUL HELIX SHEET REVDAT 2 3 1 LINK CRYST1 SITE MODEL REVDAT 2 4 1 TER HETATM ENDMDL ATOM REVDAT 2 5 1 CONECT REVDAT 1 12-APR-02 1GU8 0 JRNL AUTH K.EDMAN,A.ROYANT,P.NOLLERT,C.A.MAXWELL,E.PEBAY-PEYROULA, JRNL AUTH 2 J.NAVARRO,R.NEUTZE,E.M.LANDAU JRNL TITL EARLY STRUCTURAL REARRANGEMENTS IN THE PHOTOCYCLE OF AN JRNL TITL 2 INTEGRAL MEMBRANE SENSORY RECEPTOR JRNL REF STRUCTURE V. 10 473 2002 JRNL REFN ISSN 0969-2126 JRNL PMID 11937052 JRNL DOI 10.1016/S0969-2126(02)00736-0 REMARK 2 REMARK 2 RESOLUTION. 2.27 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.27 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 36.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 10000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.3 REMARK 3 NUMBER OF REFLECTIONS : 13075 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.230 REMARK 3 FREE R VALUE : 0.256 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.600 REMARK 3 FREE R VALUE TEST SET COUNT : 735 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.009 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.27 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.41 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 91.30 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1879 REMARK 3 BIN R VALUE (WORKING SET) : 0.2590 REMARK 3 BIN FREE R VALUE : 0.2530 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.80 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 116 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.024 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1621 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 21 REMARK 3 SOLVENT ATOMS : 16 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 24.10 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 29.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 3.12000 REMARK 3 B22 (A**2) : 3.85000 REMARK 3 B33 (A**2) : -6.97000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.26 REMARK 3 ESD FROM SIGMAA (A) : 0.19 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.30 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.18 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 18.70 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.860 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.200 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.820 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.790 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.270 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.46 REMARK 3 BSOL : 81.50 REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : RET-CIS.PAR REMARK 3 PARAMETER FILE 4 : ION.PARAM REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : RET.TOP REMARK 3 TOPOLOGY FILE 4 : ION.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1GU8 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 24-JAN-02. REMARK 100 THE DEPOSITION ID IS D_1290009325. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-JUN-01 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID14-3 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.934 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : CCP4 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13086 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.270 REMARK 200 RESOLUTION RANGE LOW (A) : 35.600 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.4 REMARK 200 DATA REDUNDANCY : 5.800 REMARK 200 R MERGE (I) : 0.13900 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 11.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.27 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.38 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.1 REMARK 200 DATA REDUNDANCY IN SHELL : 5.00 REMARK 200 R MERGE FOR SHELL (I) : 0.76400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.900 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1H68 REMARK 200 REMARK 200 REMARK: SIDE CHAINS, LOOPS AND THE RETINAL WERE OMITTED IN THE REMARK 200 STARTING MODEL FOR MOLECULAR REPLACEMENT. LOOPS AB AND CD WERE REMARK 200 RESTRAINED IN THE PARTIAL OCCUPANCY REFINEMENT. REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 53.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.75 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 4.6 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 X+1/2,-Y+1/2,-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 SMTRY1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 25.39950 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 25.39950 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 42.75500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 64.27650 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 42.75500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 64.27650 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 25.39950 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 42.75500 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 64.27650 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 25.39950 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 42.75500 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 64.27650 REMARK 290 SMTRY3 8 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: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: A 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 1 MET A 1 REMARK 465 1 ARG A 220 REMARK 465 1 ALA A 221 REMARK 465 1 GLU A 222 REMARK 465 1 HIS A 223 REMARK 465 1 GLY A 224 REMARK 465 1 GLU A 225 REMARK 465 1 SER A 226 REMARK 465 1 LEU A 227 REMARK 465 1 ALA A 228 REMARK 465 1 GLY A 229 REMARK 465 1 VAL A 230 REMARK 465 1 ASP A 231 REMARK 465 1 THR A 232 REMARK 465 1 ASP A 233 REMARK 465 1 ALA A 234 REMARK 465 1 PRO A 235 REMARK 465 1 ALA A 236 REMARK 465 1 VAL A 237 REMARK 465 1 ALA A 238 REMARK 465 1 ASP A 239 REMARK 465 2 MET A 1 REMARK 465 2 ARG A 220 REMARK 465 2 ALA A 221 REMARK 465 2 GLU A 222 REMARK 465 2 HIS A 223 REMARK 465 2 GLY A 224 REMARK 465 2 GLU A 225 REMARK 465 2 SER A 226 REMARK 465 2 LEU A 227 REMARK 465 2 ALA A 228 REMARK 465 2 GLY A 229 REMARK 465 2 VAL A 230 REMARK 465 2 ASP A 231 REMARK 465 2 THR A 232 REMARK 465 2 ASP A 233 REMARK 465 2 ALA A 234 REMARK 465 2 PRO A 235 REMARK 465 2 ALA A 236 REMARK 465 2 VAL A 237 REMARK 465 2 ALA A 238 REMARK 465 2 ASP A 239 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 1 ASP A 28 CG OD1 OD2 REMARK 470 1 SER A 31 OG REMARK 470 1 GLU A 33 CG CD OE1 OE2 REMARK 470 1 ARG A 35 CG CD NE CZ NH1 NH2 REMARK 470 1 GLU A 97 CG CD OE1 OE2 REMARK 470 1 GLU A 147 CG CD OE1 OE2 REMARK 470 1 LEU A 219 CG CD1 CD2 REMARK 470 2 ASP A 28 CG OD1 OD2 REMARK 470 2 SER A 31 OG REMARK 470 2 GLU A 33 CG CD OE1 OE2 REMARK 470 2 ARG A 35 CG CD NE CZ NH1 NH2 REMARK 470 2 GLU A 97 CG CD OE1 OE2 REMARK 470 2 GLU A 147 CG CD OE1 OE2 REMARK 470 2 LEU A 219 CG CD1 CD2 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 ASP A 28 -71.94 -79.66 REMARK 500 1 ALA A 29 100.37 50.64 REMARK 500 1 SER A 31 -3.10 -168.57 REMARK 500 1 ALA A 64 -126.13 53.33 REMARK 500 2 ASP A 28 -80.40 -71.73 REMARK 500 2 ALA A 29 113.07 52.47 REMARK 500 2 ALA A 64 -113.59 58.68 REMARK 500 2 GLU A 122 2.22 -65.24 REMARK 500 2 LYS A 205 -69.50 -103.21 REMARK 500 REMARK 500 REMARK: NULL REMARK 610 REMARK 610 MISSING HETEROATOM REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 610 I=INSERTION CODE): REMARK 610 M RES C SSEQI REMARK 610 1 RET A 300 REMARK 610 2 RET A 300 REMARK 700 REMARK 700 SHEET REMARK 700 THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN REMARK 700 ORDER TO REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW, REMARK 700 TWO SHEETS ARE DEFINED. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE RET A 300 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 500 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1H68 RELATED DB: PDB REMARK 900 SENSORY RHODOPSIN II REMARK 900 RELATED ID: 1JGJ RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF SENSORY RHODOPSIN II AT 2.4 ANGSTROMS:INSIGHTS REMARK 900 INTO COLOR TUNING AND TRANSDUCER INTERACTION REMARK 900 RELATED ID: 1GUE RELATED DB: PDB REMARK 900 SENSORY RHODOPSIN II DBREF 1GU8 A 1 239 UNP P42196 BACT_NATPH 1 239 SEQRES 1 A 239 MET VAL GLY LEU THR THR LEU PHE TRP LEU GLY ALA ILE SEQRES 2 A 239 GLY MET LEU VAL GLY THR LEU ALA PHE ALA TRP ALA GLY SEQRES 3 A 239 ARG ASP ALA GLY SER GLY GLU ARG ARG TYR TYR VAL THR SEQRES 4 A 239 LEU VAL GLY ILE SER GLY ILE ALA ALA VAL ALA TYR VAL SEQRES 5 A 239 VAL MET ALA LEU GLY VAL GLY TRP VAL PRO VAL ALA GLU SEQRES 6 A 239 ARG THR VAL PHE ALA PRO ARG TYR ILE ASP TRP ILE LEU SEQRES 7 A 239 THR THR PRO LEU ILE VAL TYR PHE LEU GLY LEU LEU ALA SEQRES 8 A 239 GLY LEU ASP SER ARG GLU PHE GLY ILE VAL ILE THR LEU SEQRES 9 A 239 ASN THR VAL VAL MET LEU ALA GLY PHE ALA GLY ALA MET SEQRES 10 A 239 VAL PRO GLY ILE GLU ARG TYR ALA LEU PHE GLY MET GLY SEQRES 11 A 239 ALA VAL ALA PHE LEU GLY LEU VAL TYR TYR LEU VAL GLY SEQRES 12 A 239 PRO MET THR GLU SER ALA SER GLN ARG SER SER GLY ILE SEQRES 13 A 239 LYS SER LEU TYR VAL ARG LEU ARG ASN LEU THR VAL ILE SEQRES 14 A 239 LEU TRP ALA ILE TYR PRO PHE ILE TRP LEU LEU GLY PRO SEQRES 15 A 239 PRO GLY VAL ALA LEU LEU THR PRO THR VAL ASP VAL ALA SEQRES 16 A 239 LEU ILE VAL TYR LEU ASP LEU VAL THR LYS VAL GLY PHE SEQRES 17 A 239 GLY PHE ILE ALA LEU ASP ALA ALA ALA THR LEU ARG ALA SEQRES 18 A 239 GLU HIS GLY GLU SER LEU ALA GLY VAL ASP THR ASP ALA SEQRES 19 A 239 PRO ALA VAL ALA ASP HET RET A 300 20 HET CL A 500 1 HETNAM RET RETINAL HETNAM CL CHLORIDE ION FORMUL 2 RET C20 H28 O FORMUL 3 CL CL 1- FORMUL 4 HOH *16(H2 O) HELIX 1 1 GLY A 3 GLY A 26 1 24 HELIX 2 2 GLU A 33 LEU A 56 1 24 HELIX 3 3 ALA A 70 GLY A 92 1 23 HELIX 4 4 ASP A 94 VAL A 118 1 25 HELIX 5 5 GLU A 122 GLY A 143 1 22 HELIX 6 6 GLY A 143 SER A 150 1 8 HELIX 7 7 SER A 153 GLY A 181 1 29 HELIX 8 8 THR A 189 LEU A 219 1 31 SHEET 1 AA 2 TRP A 60 VAL A 63 0 SHEET 2 AA 2 ARG A 66 PHE A 69 -1 O ARG A 66 N VAL A 63 SITE 1 AC1 11 TRP A 76 THR A 80 GLY A 112 PHE A 127 SITE 2 AC1 11 PHE A 134 TRP A 171 TYR A 174 TRP A 178 SITE 3 AC1 11 ASP A 201 THR A 204 LYS A 205 SITE 1 AC2 3 PHE A 69 ARG A 72 TYR A 73 CRYST1 85.510 128.553 50.799 90.00 90.00 90.00 C 2 2 21 8 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 0.011694 0.000000 0.000000 0.00000 SCALE2 0.000000 0.007779 0.000000 0.00000 SCALE3 0.000000 0.000000 0.019685 0.00000 MODEL 1