HEADER PROTON TRANSPORT 15-JUL-00 1FBK TITLE CRYSTAL STRUCTURE OF CYTOPLASMICALLY OPEN CONFORMATION OF TITLE 2 BACTERIORHODOPSIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: BACTERIORHODOPSIN; COMPND 3 CHAIN: A; COMPND 4 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HALOBACTERIUM SALINARUM; SOURCE 3 ORGANISM_TAXID: 2242 KEYWDS PROTON PUMP, MEMBRANE PROTEIN, RETINAL PROTEIN, TWO-DIMENSIONAL KEYWDS 2 CRYSTAL ELECTRON DIFFRACTION, SINGLE CRYSTAL, PROTON TRANSPORT EXPDTA ELECTRON CRYSTALLOGRAPHY AUTHOR S.SUBRAMANIAM,R.HENDERSON REVDAT 7 06-NOV-24 1FBK 1 REMARK REVDAT 6 03-NOV-21 1FBK 1 REMARK SEQADV LINK REVDAT 5 31-JAN-18 1FBK 1 REMARK REVDAT 4 04-OCT-17 1FBK 1 REMARK REVDAT 3 13-JUL-11 1FBK 1 VERSN REVDAT 2 24-FEB-09 1FBK 1 VERSN REVDAT 1 09-AUG-00 1FBK 0 JRNL AUTH S.SUBRAMANIAM,R.HENDERSON JRNL TITL MOLECULAR MECHANISM OF VECTORIAL PROTON TRANSLOCATION BY JRNL TITL 2 BACTERIORHODOPSIN. JRNL REF NATURE V. 406 653 2000 JRNL REFN ISSN 0028-0836 JRNL PMID 10949309 JRNL DOI 10.1038/35020614 REMARK 2 REMARK 2 RESOLUTION. 3.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 0.9 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) : 3.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 200.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 77.7 REMARK 3 NUMBER OF REFLECTIONS : 5668 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.272 REMARK 3 FREE R VALUE : 0.321 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 610 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 : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL 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 : 1726 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 20 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) : NULL 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 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.400 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 EACH DIFFRACTION PATTERN WAS AUTOMATICALLY INDEXED, AND THE SPOT REMARK 3 INTENSITIES REMARK 3 WERE REMARK 3 INTEGRATED EITHER USING A RASTER (FOR PATTERNS RECORDED AT REMARK 3 SPECIMEN TILTS REMARK 3 LESS THAN REMARK 3 30 DEGREES) OR USING PROFILE FITTING (FOR PATTERNS RECORDED AT REMARK 3 SPECIMEN REMARK 3 TILTS AT OR REMARK 3 GREATER THAN 30 DEGREES, WHICH REPRESENTED ABOUT 80% OF THE TOTAL REMARK 3 DATA SET). REMARK 3 EACH REMARK 3 PATTERN WAS THEN COMPARED TO THE CURVES RECORDED FOR WILD-TYPE REMARK 3 BACTERIORHODOPSIN REMARK 3 IN GLUCOSE AT -100 DEGREES C [CESKA AND HENDERSON J. MOL. BIOL. REMARK 3 213: 539-560 REMARK 3 REMARK 3 (1990)], AND THE RELATIVE PROPORTIONS OF THE FOUR DIFFERENT TWINS REMARK 3 DETERMINED. THIS REMARK 3 EXERCISE WAS CARRIED OUT WITH ALL FOUR THEORETICALLY POSSIBLE REMARK 3 ORIENTATIONS REMARK 3 OF THE REMARK 3 CRYSTAL AXES RELATIVE TO THE PREVIOUS REFERENCE CURVES TO ENSURE REMARK 3 THAT THE REMARK 3 DATA WERE REMARK 3 MERGED CORRECTLY. FROM THE INITIAL SET OF 486 PATTERNS CHOSEN, 286 REMARK 3 MINIMALLY REMARK 3 REMARK 3 TWINNED DIFFRACTION PATTERNS WERE SELECTED IN WHICH THE MAJOR TWIN REMARK 3 PROPORTION WAS REMARK 3 GREATER THAN 0.8. THESE 286 PATTERNS WERE MERGED USING THE WILD- REMARK 3 TYPE LATTICE REMARK 3 LINES REMARK 3 AS A REFERENCE AND LATTICE LINES WERE FITTED TO THE DATA TO OBTAIN REMARK 3 AN REMARK 3 INITIAL REMARK 3 APPROXIMATELY MERGED SET OF LATTICE LINES (MERGE #1) DESCRIBING THE REMARK 3 STRUCTURE OF REMARK 3 THE TRIPLE MUTANT. THE ORIGINAL SET OF 486 PATTERNS WAS THEN REMARK 3 MERGED AGAINST REMARK 3 THE REMARK 3 NEW LATTICE CURVES TO REDETERMINE THE TWIN PROPORTIONS MORE REMARK 3 ACCURATELY. THE REMARK 3 MERGING PARAMETERS FOR EACH CRYSTAL WERE INSPECTED CAREFULLY AGAIN, REMARK 3 AND 84 REMARK 3 CRYSTALS REMARK 3 FOR WHICH THE MAJOR TWIN PROPORTION WAS LESS THAN 0.70 WERE REMARK 3 EXCLUDED FROM REMARK 3 THE REMARK 3 DATA SET. THE REMAINING 402 SUBSTANTIALLY UNTWINNED DIFFRACTION REMARK 3 PATTERNS REMARK 3 WERE REMARK 3 USED TO GENERATE A NEW SET OF CURVES AND THE PROCEDURE REPEATED TO REMARK 3 CREATE A REMARK 3 STABLE REMARK 3 SET OF LATTICE LINES. THE MERGED DATA WERE FURTHER IMPROVED BY REMARK 3 USING AN REMARK 3 ESTIMATE REMARK 3 OF SIGMA VALUES FOR EACH REFLECTION, AND BY THE INCLUSION OF AN REMARK 3 INDIVIDUAL REMARK 3 WEIGHTING FACTOR FOR EACH DIFFRACTION PATTERN USING PROCEDURES REMARK 3 DESCRIBED BY REMARK 3 GRIGORIEFF REMARK 3 AND HENDERSON [ULTRAMICROSCOPY 60: 295-309 (1995)]. TWO CYCLES OF REMARK 3 THIS REMARK 3 REFINEMENT WERE CARRIED OUT TO OBTAIN A FINAL SET OF MERGED REMARK 3 CURVES. THE REMARK 3 CURVES REMARK 3 WERE SAMPLED AT 1/100 ANGSTROMS (APPROXIMATELY TWICE THE THICKNESS REMARK 3 OF THE REMARK 3 MEMBRANE) TO OBTAIN A SET OF INTENSITIES AT H,K,L VALUES SO THAT REMARK 3 THE DATA REMARK 3 COULD REMARK 3 BE FURTHER PROCESSED WITH STANDARD X-RAY CRYSTALLOGRAPHIC REMARK 3 PROGRAMS. FOR THE REMARK 3 TILT ANGLES USED, THE MAXIMAL POSSIBLE THEORETICAL COMPLETENESS OF REMARK 3 THE DATA REMARK 3 SET REMARK 3 IS ~87%. THE COMPLETENESS OF OUR DATA IS CLOSE TO THIS LIMIT UP TO REMARK 3 3.5 REMARK 3 ANGSTROMS. REMARK 3 THE COMPLETENESS DROPS TO 77.7 % WHEN ALL OF THE DATA TO 3.2 REMARK 3 ANGSTROMS IS REMARK 3 INCLUDED. REMARK 4 REMARK 4 1FBK COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 18-JUL-00. REMARK 100 THE DEPOSITION ID IS D_1000011456. 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-DEC-98 REMARK 240 TEMPERATURE (KELVIN) : 93.0 REMARK 240 PH : 7.00 REMARK 240 NUMBER OF CRYSTALS USED : 402 REMARK 240 MICROSCOPE MODEL : FEI/PHILIPS CM12 REMARK 240 DETECTOR TYPE : GENERIC CCD REMARK 240 ACCELERATION VOLTAGE (KV) : NULL REMARK 240 NUMBER OF UNIQUE REFLECTIONS : 5668 REMARK 240 RESOLUTION RANGE HIGH (A) : 3.200 REMARK 240 RESOLUTION RANGE LOW (A) : 200.000 REMARK 240 DATA SCALING SOFTWARE : MRC ELECTRON DIFFRACTION REMARK 240 PROGRAMS REMARK 240 COMPLETENESS FOR RANGE (%) : 77.7 REMARK 240 DATA REDUNDANCY : NULL 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 : MRC ELECTRON DIFFRACTION REMARK 240 PROGRAMS 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 300 REMARK: TRIMER IS PRESENT IN VIVO. THE CRYSTALS CONTAIN TRIMERS REMARK 300 RELATED BY CRYSTAL SYMMETRY P3. 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: 6470 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 27970 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -51.0 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 GLN A 1 REMARK 465 ALA A 2 REMARK 465 GLN A 3 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 ILE A 4 CG1 CG2 CD1 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 ARG A 7 -73.49 -139.68 REMARK 500 VAL A 29 58.15 -102.38 REMARK 500 LYS A 30 12.94 -177.16 REMARK 500 VAL A 34 135.22 64.57 REMARK 500 SER A 35 -74.71 -114.55 REMARK 500 ASP A 102 96.32 25.81 REMARK 500 ALA A 126 -19.26 -48.37 REMARK 500 TYR A 131 -75.08 -31.07 REMARK 500 ILE A 148 -74.03 -53.95 REMARK 500 PHE A 153 -96.18 -59.53 REMARK 500 PHE A 154 80.38 -52.04 REMARK 500 PHE A 156 29.29 -76.33 REMARK 500 THR A 157 -64.70 -132.92 REMARK 500 SER A 158 -76.51 -67.04 REMARK 500 LYS A 159 -1.76 -55.14 REMARK 500 GLU A 161 -55.09 -144.78 REMARK 500 SER A 162 65.63 -61.66 REMARK 500 MET A 163 -113.57 -153.62 REMARK 500 VAL A 167 -70.04 -32.19 REMARK 500 SER A 169 -83.89 -72.39 REMARK 500 VAL A 173 -75.93 -81.00 REMARK 500 ARG A 175 -75.14 -58.17 REMARK 500 SER A 183 -11.39 -49.16 REMARK 500 GLU A 194 -7.48 -58.33 REMARK 500 ALA A 196 -144.89 -77.18 REMARK 500 ASP A 212 -76.94 -65.26 REMARK 500 VAL A 213 -42.74 -28.06 REMARK 500 LYS A 216 -81.61 -52.28 REMARK 500 LEU A 221 -76.33 -49.45 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 1216 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1FBB RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF NATIVE CONFORMATION OF BACTERIORHODOPSIN DBREF 1FBK A 1 248 UNP P02945 BACR_HALN1 14 261 SEQADV 1FBK GLY A 96 UNP P02945 ASP 109 ENGINEERED MUTATION SEQADV 1FBK CYS A 171 UNP P02945 PHE 184 ENGINEERED MUTATION SEQADV 1FBK LEU A 219 UNP P02945 PHE 232 ENGINEERED MUTATION SEQRES 1 A 248 GLN 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 GLY 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 CYS 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 LEU 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 RET A1216 20 HETNAM RET RETINAL FORMUL 2 RET C20 H28 O HELIX 1 1 GLU A 9 VAL A 29 1 21 HELIX 2 2 ASP A 36 GLY A 63 1 28 HELIX 3 3 TYR A 79 VAL A 101 1 23 HELIX 4 4 ASP A 104 THR A 128 1 25 HELIX 5 5 VAL A 130 PHE A 153 1 24 HELIX 6 6 GLU A 166 GLY A 192 1 27 HELIX 7 7 PRO A 200 SER A 226 1 27 SHEET 1 A 2 THR A 67 PHE A 71 0 SHEET 2 A 2 GLU A 74 ILE A 78 -1 O GLU A 74 N PHE A 71 LINK NZ LYS A 216 C15 RET A1216 1555 1555 1.33 SITE 1 AC1 10 TRP A 86 THR A 89 THR A 90 LEU A 93 SITE 2 AC1 10 MET A 118 SER A 141 TYR A 185 PRO A 186 SITE 3 AC1 10 TRP A 189 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 TER 1727 ALA A 228 HETATM 1728 C1 RET A1216 15.018 10.198 1.556 1.00 32.32 C HETATM 1729 C2 RET A1216 14.928 11.111 0.299 1.00 32.32 C HETATM 1730 C3 RET A1216 14.054 12.281 0.432 1.00 32.32 C HETATM 1731 C4 RET A1216 14.553 13.210 1.592 1.00 32.32 C HETATM 1732 C5 RET A1216 14.943 12.434 2.844 1.00 32.32 C HETATM 1733 C6 RET A1216 15.170 11.054 2.871 1.00 32.32 C HETATM 1734 C7 RET A1216 15.556 10.428 4.175 1.00 32.32 C HETATM 1735 C8 RET A1216 15.828 9.157 4.491 1.00 32.32 C HETATM 1736 C9 RET A1216 16.218 8.641 5.790 1.00 32.32 C HETATM 1737 C10 RET A1216 16.440 7.310 5.854 1.00 32.32 C HETATM 1738 C11 RET A1216 16.839 6.487 6.942 1.00 32.32 C HETATM 1739 C12 RET A1216 16.951 5.163 6.721 1.00 32.32 C HETATM 1740 C13 RET A1216 17.322 4.103 7.598 1.00 32.32 C HETATM 1741 C14 RET A1216 17.293 2.846 7.006 1.00 32.32 C HETATM 1742 C15 RET A1216 17.580 1.613 7.599 1.00 32.32 C HETATM 1743 C16 RET A1216 13.752 9.332 1.620 1.00 32.32 C HETATM 1744 C17 RET A1216 16.225 9.299 1.267 1.00 32.32 C HETATM 1745 C18 RET A1216 15.060 13.351 4.048 1.00 32.32 C HETATM 1746 C19 RET A1216 16.351 9.578 6.961 1.00 32.32 C HETATM 1747 C20 RET A1216 17.685 4.373 9.043 1.00 32.32 C CONECT 1638 1742 CONECT 1728 1729 1733 1743 1744 CONECT 1729 1728 1730 CONECT 1730 1729 1731 CONECT 1731 1730 1732 CONECT 1732 1731 1733 1745 CONECT 1733 1728 1732 1734 CONECT 1734 1733 1735 CONECT 1735 1734 1736 CONECT 1736 1735 1737 1746 CONECT 1737 1736 1738 CONECT 1738 1737 1739 CONECT 1739 1738 1740 CONECT 1740 1739 1741 1747 CONECT 1741 1740 1742 CONECT 1742 1638 1741 CONECT 1743 1728 CONECT 1744 1728 CONECT 1745 1732 CONECT 1746 1736 CONECT 1747 1740 MASTER 367 0 1 7 2 0 3 6 1746 1 21 20 END