HEADER PHOTORECEPTOR 27-DEC-95 2BRD TITLE CRYSTAL STRUCTURE OF BACTERIORHODOPSIN IN PURPLE MEMBRANE COMPND MOL_ID: 1; COMPND 2 MOLECULE: BACTERIORHODOPSIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HALOBACTERIUM SALINARUM; SOURCE 3 ORGANISM_TAXID: 2242; SOURCE 4 STRAIN: R1 KEYWDS PROTON PUMP, MEMBRANE PROTEIN, RETINAL PROTEIN, TWO-DIMENSIONAL KEYWDS 2 CRYSTAL, PHOTORECEPTOR EXPDTA ELECTRON CRYSTALLOGRAPHY AUTHOR R.HENDERSON,N.GRIGORIEFF REVDAT 6 30-OCT-24 2BRD 1 REMARK REVDAT 5 05-JUN-24 2BRD 1 REMARK SEQRES LINK REVDAT 4 30-MAY-12 2BRD 1 EXPDTA REMARK REVDAT 3 13-JUL-11 2BRD 1 VERSN REVDAT 2 24-FEB-09 2BRD 1 VERSN REVDAT 1 10-JUN-96 2BRD 0 JRNL AUTH N.GRIGORIEFF,T.A.CESKA,K.H.DOWNING,J.M.BALDWIN,R.HENDERSON JRNL TITL ELECTRON-CRYSTALLOGRAPHIC REFINEMENT OF THE STRUCTURE OF JRNL TITL 2 BACTERIORHODOPSIN. JRNL REF J.MOL.BIOL. V. 259 393 1996 JRNL REFN ISSN 0022-2836 JRNL PMID 8676377 JRNL DOI 10.1006/JMBI.1996.0328 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH T.A.CESKA,R.HENDERSON REMARK 1 TITL ANALYSIS OF HIGH-RESOLUTION ELECTRON DIFFRACTION PATTERNS REMARK 1 TITL 2 FROM PURPLE MEMBRANE LABELLED WITH HEAVY-ATOMS REMARK 1 REF J.MOL.BIOL. V. 213 539 1990 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 2 REMARK 1 AUTH R.HENDERSON,J.M.BALDWIN,T.A.CESKA,F.ZEMLIN,E.BECKMANN, REMARK 1 AUTH 2 K.H.DOWNING REMARK 1 TITL MODEL FOR THE STRUCTURE OF BACTERIORHODOPSIN BASED ON REMARK 1 TITL 2 HIGH-RESOLUTION ELECTRON CRYO-MICROSCOPY REMARK 1 REF J.MOL.BIOL. V. 213 899 1990 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 3 REMARK 1 AUTH R.HENDERSON,P.N.UNWIN REMARK 1 TITL THREE-DIMENSIONAL MODEL OF PURPLE MEMBRANE OBTAINED BY REMARK 1 TITL 2 ELECTRON MICROSCOPY REMARK 1 REF NATURE V. 257 28 1975 REMARK 1 REFN ISSN 0028-0836 REMARK 2 REMARK 2 RESOLUTION. 3.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PROLSQ REMARK 3 AUTHORS : KONNERT,HENDRICKSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 3.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 85.4 REMARK 3 NUMBER OF REFLECTIONS : 4743 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.280 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/AGREEMENT OF MODEL WITH ALL DATA. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1718 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 610 REMARK 3 SOLVENT ATOMS : 0 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 114.0 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.005 ; 0.020 REMARK 3 ANGLE DISTANCE (A) : 0.020 ; 0.040 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.022 ; 0.050 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : 0.005 ; 0.020 REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.086 ; 0.150 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 0.185 ; 0.300 REMARK 3 MULTIPLE TORSION (A) : 0.242 ; 0.300 REMARK 3 H-BOND (X...Y) (A) : 0.127 ; 0.300 REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : 0.865 ; NULL REMARK 3 STAGGERED (DEGREES) : 20.400; 15.000 REMARK 3 TRANSVERSE (DEGREES) : 36.100; 20.000 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 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2BRD COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000177875. 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 : 01-JAN-86 REMARK 240 TEMPERATURE (KELVIN) : NULL REMARK 240 PH : NULL REMARK 240 NUMBER OF CRYSTALS USED : NULL REMARK 240 MICROSCOPE MODEL : SIEMENS SULEIKA REMARK 240 DETECTOR TYPE : GENERIC FILM REMARK 240 ACCELERATION VOLTAGE (KV) : 100 REMARK 240 NUMBER OF UNIQUE REFLECTIONS : 6750 REMARK 240 RESOLUTION RANGE HIGH (A) : 2.800 REMARK 240 RESOLUTION RANGE LOW (A) : 54.000 REMARK 240 DATA SCALING SOFTWARE : NULL REMARK 240 COMPLETENESS FOR RANGE (%) : 62.3 REMARK 240 DATA REDUNDANCY : 18.00 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 3 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 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: TRIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 34840 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 35800 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -277.0 KCAL/MOL 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 350 BIOMT1 2 -0.500000 -0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 3 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 PCA A 1 REMARK 465 ALA A 2 REMARK 465 GLN A 3 REMARK 465 ILE A 4 REMARK 465 THR A 5 REMARK 465 GLY A 6 REMARK 465 ILE A 229 REMARK 465 PHE A 230 REMARK 465 GLY A 231 REMARK 465 GLU A 232 REMARK 465 ALA A 233 REMARK 465 GLU A 234 REMARK 465 ALA A 235 REMARK 465 PRO A 236 REMARK 465 GLU A 237 REMARK 465 PRO A 238 REMARK 465 SER A 239 REMARK 465 ALA A 240 REMARK 465 GLY A 241 REMARK 465 ASP A 242 REMARK 465 GLY A 243 REMARK 465 ALA A 244 REMARK 465 ALA A 245 REMARK 465 ALA A 246 REMARK 465 THR A 247 REMARK 465 SER A 248 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 ALA A 228 CA C O CB 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 TRP A 80 CA - CB - CG ANGL. DEV. = 14.2 DEGREES REMARK 500 TYR A 133 CA - CB - CG ANGL. DEV. = 14.6 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 GLU A 9 -41.19 -26.45 REMARK 500 MET A 32 -89.28 -10.24 REMARK 500 ASP A 36 -62.59 -132.17 REMARK 500 PRO A 37 -118.09 -90.23 REMARK 500 THR A 67 73.11 -116.15 REMARK 500 PHE A 71 92.89 -171.60 REMARK 500 GLN A 75 176.05 -53.88 REMARK 500 THR A 89 -72.87 -42.50 REMARK 500 VAL A 101 -89.22 -104.11 REMARK 500 TYR A 133 -0.23 -173.72 REMARK 500 ALA A 160 -141.06 42.32 REMARK 500 GLU A 161 107.85 -45.90 REMARK 500 MET A 163 -117.98 -99.74 REMARK 500 TYR A 185 -71.49 -42.16 REMARK 500 SER A 193 -101.25 12.74 REMARK 500 PRO A 200 -91.57 -48.56 REMARK 500 LEU A 201 -56.54 -154.37 REMARK 500 ASP A 212 -73.64 -44.01 REMARK 500 ARG A 227 99.21 -64.77 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 DPG A 261 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 262 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 263 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 264 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 265 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 266 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 267 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 268 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC9 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 269 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 270 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE RET A 271 DBREF 2BRD A 2 248 UNP P02945 BACR_HALN1 14 253 SEQRES 1 A 248 PCA ALA GLN ILE THR GLY ARG PRO GLU TRP ILE TRP LEU SEQRES 2 A 248 ALA LEU GLY THR ALA LEU MET GLY LEU GLY THR LEU TYR SEQRES 3 A 248 PHE LEU VAL LYS GLY MET GLY VAL SER ASP PRO ASP ALA SEQRES 4 A 248 LYS LYS PHE TYR ALA ILE THR THR LEU VAL PRO ALA ILE SEQRES 5 A 248 ALA PHE THR MET TYR LEU SER MET LEU LEU GLY TYR GLY SEQRES 6 A 248 LEU THR MET VAL PRO PHE GLY GLY GLU GLN ASN PRO ILE SEQRES 7 A 248 TYR TRP ALA ARG TYR ALA ASP TRP LEU PHE THR THR PRO SEQRES 8 A 248 LEU LEU LEU LEU ASP LEU ALA LEU LEU VAL ASP ALA ASP SEQRES 9 A 248 GLN GLY THR ILE LEU ALA LEU VAL GLY ALA ASP GLY ILE SEQRES 10 A 248 MET ILE GLY THR GLY LEU VAL GLY ALA LEU THR LYS VAL SEQRES 11 A 248 TYR SER TYR ARG PHE VAL TRP TRP ALA ILE SER THR ALA SEQRES 12 A 248 ALA MET LEU TYR ILE LEU TYR VAL LEU PHE PHE GLY PHE SEQRES 13 A 248 THR SER LYS ALA GLU SER MET ARG PRO GLU VAL ALA SER SEQRES 14 A 248 THR PHE LYS VAL LEU ARG ASN VAL THR VAL VAL LEU TRP SEQRES 15 A 248 SER ALA TYR PRO VAL VAL TRP LEU ILE GLY SER GLU GLY SEQRES 16 A 248 ALA GLY ILE VAL PRO LEU ASN ILE GLU THR LEU LEU PHE SEQRES 17 A 248 MET VAL LEU ASP VAL SER ALA LYS VAL GLY PHE GLY LEU SEQRES 18 A 248 ILE LEU LEU ARG SER ARG ALA ILE PHE GLY GLU ALA GLU SEQRES 19 A 248 ALA PRO GLU PRO SER ALA GLY ASP GLY ALA ALA ALA THR SEQRES 20 A 248 SER HET DPG A 261 59 HET DPG A 262 59 HET DPG A 263 59 HET DPG A 264 59 HET DPG A 265 59 HET DPG A 266 59 HET DPG A 267 59 HET DPG A 268 59 HET DPG A 269 59 HET DPG A 270 59 HET RET A 271 20 HETNAM DPG PHOSPHORIC ACID 2,3-BIS-(3,7,11,15-TETRAMETHYL- HETNAM 2 DPG HEXADECYLOXY)-PROPYL ESTER 2-HYDROXO-3-PHOSPHONOOXY- HETNAM 3 DPG PROPYL ESTER HETNAM RET RETINAL HETSYN DPG DPHPG FORMUL 2 DPG 10(C46 H96 O11 P2) FORMUL 12 RET C20 H28 O HELIX 1 A GLU A 9 GLY A 31 1 23 HELIX 2 B ASP A 38 LEU A 62 1 25 HELIX 3 C PRO A 77 LEU A 100 1 24 HELIX 4 D GLN A 105 LEU A 127 1 23 HELIX 5 E ARG A 134 THR A 157 1 24 HELIX 6 F GLU A 166 ILE A 191 1 26 HELIX 7 G ILE A 203 SER A 226 1 24 LINK NZ LYS A 216 C15 RET A 271 1555 1555 1.31 SITE 1 AC1 10 TYR A 64 LEU A 66 MET A 68 PRO A 70 SITE 2 AC1 10 TRP A 80 LEU A 87 PHE A 88 VAL A 124 SITE 3 AC1 10 LYS A 129 DPG A 266 SITE 1 AC2 9 SER A 183 VAL A 187 ILE A 191 ALA A 196 SITE 2 AC2 9 ILE A 198 LEU A 207 DPG A 263 DPG A 267 SITE 3 AC2 9 DPG A 268 SITE 1 AC3 11 TRP A 12 PHE A 135 TRP A 138 ALA A 196 SITE 2 AC3 11 ILE A 203 LEU A 206 VAL A 210 DPG A 262 SITE 3 AC3 11 DPG A 264 DPG A 265 DPG A 268 SITE 1 AC4 8 ALA A 18 PHE A 54 LEU A 58 LEU A 61 SITE 2 AC4 8 VAL A 136 DPG A 263 DPG A 265 DPG A 270 SITE 1 AC5 5 ILE A 11 LEU A 15 ALA A 18 DPG A 263 SITE 2 AC5 5 DPG A 264 SITE 1 AC6 12 ILE A 52 PHE A 88 LEU A 92 LEU A 95 SITE 2 AC6 12 LEU A 99 ALA A 103 GLN A 105 ILE A 108 SITE 3 AC6 12 LEU A 109 GLY A 116 ILE A 117 DPG A 261 SITE 1 AC7 9 PHE A 156 LYS A 172 ARG A 175 ASN A 176 SITE 2 AC7 9 VAL A 180 ALA A 184 VAL A 187 DPG A 262 SITE 3 AC7 9 DPG A 268 SITE 1 AC8 18 TRP A 138 THR A 142 MET A 145 LEU A 149 SITE 2 AC8 18 TYR A 150 PHE A 153 THR A 157 SER A 169 SITE 3 AC8 18 LYS A 172 VAL A 173 VAL A 179 PRO A 186 SITE 4 AC8 18 VAL A 210 SER A 214 ARG A 225 DPG A 262 SITE 5 AC8 18 DPG A 263 DPG A 267 SITE 1 AC9 10 LEU A 28 MET A 32 GLY A 33 LYS A 40 SITE 2 AC9 10 THR A 47 ALA A 51 TYR A 147 PHE A 154 SITE 3 AC9 10 LEU A 221 DPG A 270 SITE 1 BC1 9 LEU A 22 TYR A 26 VAL A 29 LYS A 30 SITE 2 BC1 9 GLY A 33 LEU A 224 ARG A 227 DPG A 264 SITE 3 BC1 9 DPG A 269 SITE 1 BC2 11 TRP A 86 THR A 89 THR A 90 MET A 118 SITE 2 BC2 11 TRP A 138 SER A 141 TRP A 182 TYR A 185 SITE 3 BC2 11 TRP A 189 ASP A 212 LYS A 216 CRYST1 62.450 62.450 100.900 90.00 90.00 120.00 P 3 3 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 0.016013 0.009245 0.000000 0.00000 SCALE2 0.000000 0.018490 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009911 0.00000