HEADER PROTON TRANSPORT 26-MAR-03 1UAZ TITLE CRYSTAL STRUCTURE OF ARCHAERHODOPSIN-1 COMPND MOL_ID: 1; COMPND 2 MOLECULE: ARCHAERHODOPSIN-1; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: AR 1 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HALOBACTERIUM SP. AUS-1; SOURCE 3 ORGANISM_TAXID: 2244; SOURCE 4 STRAIN: AUS-1 KEYWDS PROTON PUMP, RETINAL PROTEIN, 7 TRANS-MEMBRANE HELICES, PROTON KEYWDS 2 TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR N.ENAMI,H.OKUMUA,T.KOUYAMA REVDAT 3 25-OCT-23 1UAZ 1 REMARK LINK REVDAT 2 24-FEB-09 1UAZ 1 VERSN REVDAT 1 15-APR-03 1UAZ 0 JRNL AUTH N.ENAMI,H.OKUMUA,T.KOUYAMA JRNL TITL X-RAY CRYSTALLOGRAPHIC STUDIES OF ARCHAERHODOPSIN JRNL REF J.PHOTOSCI. V. 9 320 2003 JRNL REFN ISSN 1225-8555 REMARK 2 REMARK 2 RESOLUTION. 3.40 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 : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 3.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 40.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.1 REMARK 3 NUMBER OF REFLECTIONS : 12632 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 : 0.282 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 1309 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL 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) : 3.40 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 3.52 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2422 REMARK 3 BIN FREE R VALUE : 0.2912 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 113 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3614 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 40 REMARK 3 SOLVENT ATOMS : 0 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 125.0 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 82.18 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 21.34000 REMARK 3 B22 (A**2) : 17.78100 REMARK 3 B33 (A**2) : -39.12100 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) : 0.43 REMARK 3 ESD FROM SIGMAA (A) : 0.48 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) : 0.55 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.55 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.008 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ANISOTROPIC REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL 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 : TRA.PARAM REMARK 3 PARAMETER FILE 3 : TRB.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : TRA.TOP REMARK 3 TOPOLOGY FILE 3 : TRB.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1UAZ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 01-APR-03. REMARK 100 THE DEPOSITION ID IS D_1000005634. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 13-DEC-02; 27-SEP-02 REMARK 200 TEMPERATURE (KELVIN) : 100; 100 REMARK 200 PH : 5.2 REMARK 200 NUMBER OF CRYSTALS USED : 2 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y; Y REMARK 200 RADIATION SOURCE : SPRING-8; SPRING-8 REMARK 200 BEAMLINE : BL41XU; BL44B2 REMARK 200 X-RAY GENERATOR MODEL : NULL; NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M; M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0; 1.0 REMARK 200 MONOCHROMATOR : DOUBLE UNDULATOR; BENDING MAGNET REMARK 200 OPTICS : NULL; NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD; CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH; MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA, CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 12632 REMARK 200 RESOLUTION RANGE HIGH (A) : 3.400 REMARK 200 RESOLUTION RANGE LOW (A) : 40.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 90.4 REMARK 200 DATA REDUNDANCY : 12.50 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.10300 REMARK 200 FOR THE DATA SET : 6.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 3.58 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : 14.20 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.60300 REMARK 200 FOR SHELL : 1.300 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH; SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: XTALVIEW REMARK 200 STARTING MODEL: PDB ENTRY 1IW6 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 73.70 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.71 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, OCTYLTHIOGLUCOSIDE, REMARK 280 SODIUM CITRATE, HEPTANETRIOL, SODIUM CHLORIDE , PH 5.2, VAPOR REMARK 280 DIFFUSION, SITTING DROP, TEMPERATURE 280K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2 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 -Y+1/2,X+1/2,Z+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 58.80000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 64.05000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 64.05000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 88.20000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 64.05000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 64.05000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 29.40000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 64.05000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 64.05000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 88.20000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 64.05000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 64.05000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 29.40000 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 58.80000 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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A TRIMER GENERATED FROM A REMARK 300 MONOMER IN THE ASYMMETRIC UNIT 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 GLY A 237 REMARK 465 ASP A 238 REMARK 465 THR A 239 REMARK 465 GLU A 240 REMARK 465 ALA A 241 REMARK 465 PRO A 242 REMARK 465 GLU A 243 REMARK 465 PRO A 244 REMARK 465 SER A 245 REMARK 465 ALA A 246 REMARK 465 GLY A 247 REMARK 465 ALA A 248 REMARK 465 GLU A 249 REMARK 465 ALA A 250 REMARK 465 SER A 251 REMARK 465 ALA A 252 REMARK 465 ALA A 253 REMARK 465 ASP A 254 REMARK 465 GLY B 237 REMARK 465 ASP B 238 REMARK 465 THR B 239 REMARK 465 GLU B 240 REMARK 465 ALA B 241 REMARK 465 PRO B 242 REMARK 465 GLU B 243 REMARK 465 PRO B 244 REMARK 465 SER B 245 REMARK 465 ALA B 246 REMARK 465 GLY B 247 REMARK 465 ALA B 248 REMARK 465 GLU B 249 REMARK 465 ALA B 250 REMARK 465 SER B 251 REMARK 465 ALA B 252 REMARK 465 ALA B 253 REMARK 465 ASP B 254 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 LEU A 8 -6.64 -51.44 REMARK 500 VAL A 55 -75.33 -59.23 REMARK 500 LYS A 108 89.15 60.64 REMARK 500 THR A 160 -87.01 -119.92 REMARK 500 LYS A 222 -78.04 -108.09 REMARK 500 THR B 41 -38.41 -139.64 REMARK 500 ILE B 51 -73.52 -53.27 REMARK 500 THR B 52 -15.30 -38.53 REMARK 500 SER B 79 -17.68 -143.19 REMARK 500 LYS B 108 83.65 56.30 REMARK 500 ASP B 121 -16.97 -49.06 REMARK 500 ALA B 132 -35.90 -35.76 REMARK 500 MET B 151 -38.46 -39.92 REMARK 500 TYR B 156 -73.57 -60.95 REMARK 500 THR B 160 -86.76 -106.12 REMARK 500 ARG B 169 -177.74 -68.16 REMARK 500 VAL B 186 -71.66 -119.37 REMARK 500 LYS B 222 -74.33 -104.14 REMARK 500 REMARK 500 REMARK: NULL 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 255 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE RET B 255 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1IW6 RELATED DB: PDB REMARK 900 BACTERIORHODOPSIN IN THE P622 CRYSTAL DBREF 1UAZ A 1 254 UNP P19585 BAC1_HALS1 7 260 DBREF 1UAZ B 1 254 UNP P19585 BAC1_HALS1 7 260 SEQRES 1 A 254 THR ALA ALA VAL GLY ALA ASP LEU LEU GLY ASP GLY ARG SEQRES 2 A 254 PRO GLU THR LEU TRP LEU GLY ILE GLY THR LEU LEU MET SEQRES 3 A 254 LEU ILE GLY THR PHE TYR PHE ILE VAL LYS GLY TRP GLY SEQRES 4 A 254 VAL THR ASP LYS GLU ALA ARG GLU TYR TYR SER ILE THR SEQRES 5 A 254 ILE LEU VAL PRO GLY ILE ALA SER ALA ALA TYR LEU SER SEQRES 6 A 254 MET PHE PHE GLY ILE GLY LEU THR GLU VAL GLN VAL GLY SEQRES 7 A 254 SER GLU MET LEU ASP ILE TYR TYR ALA ARG TYR ALA ASP SEQRES 8 A 254 TRP LEU PHE THR THR PRO LEU LEU LEU LEU ASP LEU ALA SEQRES 9 A 254 LEU LEU ALA LYS VAL ASP ARG VAL SER ILE GLY THR LEU SEQRES 10 A 254 VAL GLY VAL ASP ALA LEU MET ILE VAL THR GLY LEU VAL SEQRES 11 A 254 GLY ALA LEU SER HIS THR PRO LEU ALA ARG TYR THR TRP SEQRES 12 A 254 TRP LEU PHE SER THR ILE CYS MET ILE VAL VAL LEU TYR SEQRES 13 A 254 PHE LEU ALA THR SER LEU ARG ALA ALA ALA LYS GLU ARG SEQRES 14 A 254 GLY PRO GLU VAL ALA SER THR PHE ASN THR LEU THR ALA SEQRES 15 A 254 LEU VAL LEU VAL LEU TRP THR ALA TYR PRO ILE LEU TRP SEQRES 16 A 254 ILE ILE GLY THR GLU GLY ALA GLY VAL VAL GLY LEU GLY SEQRES 17 A 254 ILE GLU THR LEU LEU PHE MET VAL LEU ASP VAL THR ALA SEQRES 18 A 254 LYS VAL GLY PHE GLY PHE ILE LEU LEU ARG SER ARG ALA SEQRES 19 A 254 ILE LEU GLY ASP THR GLU ALA PRO GLU PRO SER ALA GLY SEQRES 20 A 254 ALA GLU ALA SER ALA ALA ASP SEQRES 1 B 254 THR ALA ALA VAL GLY ALA ASP LEU LEU GLY ASP GLY ARG SEQRES 2 B 254 PRO GLU THR LEU TRP LEU GLY ILE GLY THR LEU LEU MET SEQRES 3 B 254 LEU ILE GLY THR PHE TYR PHE ILE VAL LYS GLY TRP GLY SEQRES 4 B 254 VAL THR ASP LYS GLU ALA ARG GLU TYR TYR SER ILE THR SEQRES 5 B 254 ILE LEU VAL PRO GLY ILE ALA SER ALA ALA TYR LEU SER SEQRES 6 B 254 MET PHE PHE GLY ILE GLY LEU THR GLU VAL GLN VAL GLY SEQRES 7 B 254 SER GLU MET LEU ASP ILE TYR TYR ALA ARG TYR ALA ASP SEQRES 8 B 254 TRP LEU PHE THR THR PRO LEU LEU LEU LEU ASP LEU ALA SEQRES 9 B 254 LEU LEU ALA LYS VAL ASP ARG VAL SER ILE GLY THR LEU SEQRES 10 B 254 VAL GLY VAL ASP ALA LEU MET ILE VAL THR GLY LEU VAL SEQRES 11 B 254 GLY ALA LEU SER HIS THR PRO LEU ALA ARG TYR THR TRP SEQRES 12 B 254 TRP LEU PHE SER THR ILE CYS MET ILE VAL VAL LEU TYR SEQRES 13 B 254 PHE LEU ALA THR SER LEU ARG ALA ALA ALA LYS GLU ARG SEQRES 14 B 254 GLY PRO GLU VAL ALA SER THR PHE ASN THR LEU THR ALA SEQRES 15 B 254 LEU VAL LEU VAL LEU TRP THR ALA TYR PRO ILE LEU TRP SEQRES 16 B 254 ILE ILE GLY THR GLU GLY ALA GLY VAL VAL GLY LEU GLY SEQRES 17 B 254 ILE GLU THR LEU LEU PHE MET VAL LEU ASP VAL THR ALA SEQRES 18 B 254 LYS VAL GLY PHE GLY PHE ILE LEU LEU ARG SER ARG ALA SEQRES 19 B 254 ILE LEU GLY ASP THR GLU ALA PRO GLU PRO SER ALA GLY SEQRES 20 B 254 ALA GLU ALA SER ALA ALA ASP HET RET A 255 20 HET RET B 255 20 HETNAM RET RETINAL FORMUL 3 RET 2(C20 H28 O) HELIX 1 1 GLU A 15 TRP A 38 1 24 HELIX 2 2 GLU A 44 GLY A 69 1 26 HELIX 3 3 TYR A 86 LEU A 106 1 21 HELIX 4 4 ASP A 110 LEU A 133 1 24 HELIX 5 5 THR A 136 THR A 160 1 25 HELIX 6 6 THR A 160 ALA A 166 1 7 HELIX 7 7 GLY A 170 GLY A 198 1 29 HELIX 8 8 GLY A 206 ARG A 231 1 26 HELIX 9 9 GLU B 15 LYS B 36 1 22 HELIX 10 10 GLU B 44 PHE B 68 1 25 HELIX 11 11 TYR B 86 LYS B 108 1 23 HELIX 12 12 ASP B 110 SER B 134 1 25 HELIX 13 13 THR B 136 THR B 160 1 25 HELIX 14 14 THR B 160 ARG B 169 1 10 HELIX 15 15 GLY B 170 GLY B 198 1 29 HELIX 16 16 GLY B 206 LEU B 230 1 25 SHEET 1 A 3 LEU A 72 VAL A 77 0 SHEET 2 A 3 GLU A 80 TYR A 85 -1 O LEU A 82 N VAL A 75 SHEET 3 A 3 ALA B 3 VAL B 4 -1 O ALA B 3 N MET A 81 SHEET 1 B 2 LEU B 72 VAL B 77 0 SHEET 2 B 2 GLU B 80 TYR B 85 -1 O ILE B 84 N THR B 73 LINK NZ LYS A 222 C15 RET A 255 1555 1555 1.36 LINK NZ LYS B 222 C15 RET B 255 1555 1555 1.36 SITE 1 AC1 12 TRP A 92 THR A 96 TRP A 144 SER A 147 SITE 2 AC1 12 THR A 148 TRP A 188 TYR A 191 PRO A 192 SITE 3 AC1 12 TRP A 195 ASP A 218 ALA A 221 LYS A 222 SITE 1 AC2 13 TRP B 92 THR B 96 MET B 124 TRP B 144 SITE 2 AC2 13 SER B 147 THR B 148 MET B 151 TRP B 188 SITE 3 AC2 13 TYR B 191 PRO B 192 TRP B 195 ASP B 218 SITE 4 AC2 13 LYS B 222 CRYST1 128.100 128.100 117.600 90.00 90.00 90.00 P 43 21 2 16 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 0.007806 0.000000 0.000000 0.00000 SCALE2 0.000000 0.007806 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008503 0.00000