HEADER PHOTOSYNTHESIS 08-JUL-19 6PQ1 TITLE STRUCTURE OF THE FREMYELLA DIPLOSIPHON OCP1 COMPND MOL_ID: 1; COMPND 2 MOLECULE: ORANGE CAROTENOID-BINDING PROTEIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: TOLYPOTHRIX SP. PCC 7601; SOURCE 3 ORGANISM_TAXID: 1188; SOURCE 4 GENE: FDUTEX481_08602; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS PHOTOPROTECTION, CAROTENOID BINDING PROTEIN, PHOTOSYNTHESIS EXPDTA X-RAY DIFFRACTION AUTHOR M.SUTTER,M.A.DOMINGUEZ-MARTIN,H.BAO,C.A.KERFELD REVDAT 2 11-OCT-23 6PQ1 1 REMARK REVDAT 1 20-MAY-20 6PQ1 0 JRNL AUTH V.KUZNETSOVA,M.A.DOMINGUEZ-MARTIN,H.BAO,S.GUPTA,M.SUTTER, JRNL AUTH 2 M.KLOZ,M.REBARZ,M.PRECEK,Y.CHEN,C.J.PETZOLD,C.Y.RALSTON, JRNL AUTH 3 C.A.KERFELD,T.POLIVKA JRNL TITL COMPARATIVE ULTRAFAST SPECTROSCOPY AND STRUCTURAL ANALYSIS JRNL TITL 2 OF OCP1 AND OCP2 FROM TOLYPOTHRIX. JRNL REF BIOCHIM BIOPHYS ACTA V.1861 48120 2020 JRNL REF 2 BIOENERG JRNL REFN ISSN 1879-2650 JRNL PMID 31734194 JRNL DOI 10.1016/J.BBABIO.2019.148120 REMARK 2 REMARK 2 RESOLUTION. 1.61 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.16_3549 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.61 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 41.14 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 95.4 REMARK 3 NUMBER OF REFLECTIONS : 50661 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.196 REMARK 3 R VALUE (WORKING SET) : 0.195 REMARK 3 FREE R VALUE : 0.213 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 3.920 REMARK 3 FREE R VALUE TEST SET COUNT : 1987 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 41.1400 - 3.8800 1.00 3831 156 0.1572 0.1475 REMARK 3 2 3.8800 - 3.0800 0.86 3163 133 0.1835 0.2173 REMARK 3 3 3.0800 - 2.6900 1.00 3674 151 0.1955 0.2415 REMARK 3 4 2.6900 - 2.4500 1.00 3647 145 0.2008 0.1946 REMARK 3 5 2.4500 - 2.2700 0.99 3035 126 0.1944 0.2272 REMARK 3 6 2.2700 - 2.1400 0.98 2752 116 0.2192 0.2360 REMARK 3 7 2.1400 - 2.0300 1.00 3618 148 0.2163 0.2415 REMARK 3 8 2.0300 - 1.9400 1.00 3620 147 0.2323 0.2846 REMARK 3 9 1.9400 - 1.8700 0.93 3353 132 0.3047 0.3644 REMARK 3 10 1.8700 - 1.8000 1.00 3635 150 0.2361 0.2422 REMARK 3 11 1.8000 - 1.7500 1.00 3613 145 0.2294 0.2487 REMARK 3 12 1.7500 - 1.7000 1.00 3579 144 0.2281 0.2605 REMARK 3 13 1.7000 - 1.6500 1.00 3653 153 0.2321 0.2811 REMARK 3 14 1.6500 - 1.6100 0.99 3501 141 0.2516 0.3007 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.171 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 23.298 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 25.70 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 34.62 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.018 2618 REMARK 3 ANGLE : 1.569 3571 REMARK 3 CHIRALITY : 0.089 397 REMARK 3 PLANARITY : 0.013 468 REMARK 3 DIHEDRAL : 11.583 2174 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 6PQ1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-JUL-19. REMARK 100 THE DEPOSITION ID IS D_1000242826. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-APR-18 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 5.0.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0000 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS3 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 51011 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.610 REMARK 200 RESOLUTION RANGE LOW (A) : 41.140 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.0 REMARK 200 DATA REDUNDANCY : 9.500 REMARK 200 R MERGE (I) : 0.03700 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 27.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.61 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.70 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.3 REMARK 200 DATA REDUNDANCY IN SHELL : 9.60 REMARK 200 R MERGE FOR SHELL (I) : 0.38500 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 5.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHENIX REMARK 200 STARTING MODEL: 3MG1 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 57.18 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.87 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.75 M POTASSIUM PHOSPHATE, PH 7.0, REMARK 280 BATCH MODE, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 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 52.34867 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 26.17433 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 26.17433 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 52.34867 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 MET A 1 REMARK 465 HIS A 322 REMARK 465 HIS A 323 REMARK 465 HIS A 324 REMARK 465 HIS A 325 REMARK 465 HIS A 326 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 ASP A 19 CB - CG - OD1 ANGL. DEV. = 7.6 DEGREES REMARK 500 TYR A 98 CA - CB - CG ANGL. DEV. = 12.8 DEGREES REMARK 500 TYR A 98 CB - CG - CD2 ANGL. DEV. = -10.8 DEGREES REMARK 500 TYR A 98 CB - CG - CD1 ANGL. DEV. = 7.0 DEGREES REMARK 500 TYR A 111 CB - CG - CD2 ANGL. DEV. = -5.5 DEGREES REMARK 500 TYR A 111 CB - CG - CD1 ANGL. DEV. = 3.7 DEGREES REMARK 500 TYR A 171 CB - CG - CD2 ANGL. DEV. = -6.4 DEGREES REMARK 500 TYR A 171 CB - CG - CD1 ANGL. DEV. = 3.6 DEGREES REMARK 500 TYR A 203 CB - CG - CD2 ANGL. DEV. = -8.1 DEGREES REMARK 500 TYR A 203 CB - CG - CD1 ANGL. DEV. = 4.0 DEGREES REMARK 500 PHE A 219 CB - CG - CD2 ANGL. DEV. = -6.4 DEGREES REMARK 500 PHE A 219 CB - CG - CD1 ANGL. DEV. = 4.7 DEGREES REMARK 500 ARG A 291 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 LYS A 312 CD - CE - NZ ANGL. DEV. = 15.4 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 VAL A 262 -153.25 -123.11 REMARK 500 ASP A 264 37.42 74.77 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 TYR A 98 0.07 SIDE CHAIN REMARK 500 TYR A 111 0.07 SIDE CHAIN REMARK 500 TYR A 171 0.07 SIDE CHAIN REMARK 500 TYR A 203 0.07 SIDE CHAIN 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 45D A 501 DBREF1 6PQ1 A 1 319 UNP A0A0D6KM24_9CYAN DBREF2 6PQ1 A A0A0D6KM24 1 319 SEQADV 6PQ1 HIS A 320 UNP A0A0D6KM2 EXPRESSION TAG SEQADV 6PQ1 HIS A 321 UNP A0A0D6KM2 EXPRESSION TAG SEQADV 6PQ1 HIS A 322 UNP A0A0D6KM2 EXPRESSION TAG SEQADV 6PQ1 HIS A 323 UNP A0A0D6KM2 EXPRESSION TAG SEQADV 6PQ1 HIS A 324 UNP A0A0D6KM2 EXPRESSION TAG SEQADV 6PQ1 HIS A 325 UNP A0A0D6KM2 EXPRESSION TAG SEQADV 6PQ1 HIS A 326 UNP A0A0D6KM2 EXPRESSION TAG SEQRES 1 A 326 MET PRO PHE THR ILE ASP SER ALA ARG GLY ILE PHE PRO SEQRES 2 A 326 GLU THR LEU THR ALA ASP SER VAL PRO ALA THR ILE ALA SEQRES 3 A 326 ARG PHE ASN GLN LEU SER ALA GLU ASP GLN LEU ALA LEU SEQRES 4 A 326 ILE TRP PHE ALA TYR LEU GLU MET GLY LYS THR ILE THR SEQRES 5 A 326 ILE ALA ALA PRO GLY ALA ALA ASN MET VAL PHE ALA GLU SEQRES 6 A 326 ASN THR LEU ASN GLU LEU LYS GLN MET SER PHE GLN GLU SEQRES 7 A 326 GLN THR GLN VAL MET CYS ASP LEU ALA ASN ARG ALA ASP SEQRES 8 A 326 THR PRO ILE CYS ARG THR TYR ALA ILE TRP SER VAL ASN SEQRES 9 A 326 ILE LYS LEU GLY PHE TRP TYR ARG LEU ALA GLU TRP MET SEQRES 10 A 326 GLU GLN GLY ILE VAL ALA PRO ILE PRO GLN GLY TYR ARG SEQRES 11 A 326 LEU SER ALA ASN ALA ALA ALA VAL LEU GLN ALA ILE ARG SEQRES 12 A 326 GLU LEU ASP ALA GLY GLN GLN ILE THR VAL LEU ARG ASN SEQRES 13 A 326 SER VAL VAL ASP MET GLY TYR ASP PRO SER LYS LEU GLY SEQRES 14 A 326 SER TYR THR LYS VAL SER GLU PRO VAL ALA PRO PRO LYS SEQRES 15 A 326 GLU MET ALA LYS ARG THR PRO VAL THR ILE GLU GLY ILE SEQRES 16 A 326 ASP ASN PRO THR ILE LEU SER TYR MET ASP ASN LEU ASN SEQRES 17 A 326 ALA ASN ASP PHE ASP ALA LEU ILE GLU LEU PHE THR PRO SEQRES 18 A 326 ASP GLY ALA LEU GLN PRO PRO PHE GLN LYS PRO ILE ALA SEQRES 19 A 326 GLY LYS GLU ALA VAL TYR ARG PHE PHE ARG GLU ASP CYS SEQRES 20 A 326 GLN ASN LEU LYS LEU ILE PRO GLN ARG GLY VAL SER GLU SEQRES 21 A 326 ALA VAL GLU ASP GLY TYR THR GLN ILE LYS VAL THR GLY SEQRES 22 A 326 THR VAL GLN THR PRO TRP PHE GLY ALA SER VAL GLY MET SEQRES 23 A 326 ASN MET ALA TRP ARG PHE LEU LEU THR PRO GLU ASN LYS SEQRES 24 A 326 ILE PHE PHE VAL ALA ILE ASP LEU LEU ALA SER PRO LYS SEQRES 25 A 326 GLU LEU LEU ASN LEU VAL ARG HIS HIS HIS HIS HIS HIS SEQRES 26 A 326 HIS HET 45D A 501 94 HETNAM 45D BETA,BETA-CAROTENE-4,4'-DIONE HETSYN 45D ISOMER OF CANTHAXANTHIN FORMUL 2 45D C40 H52 O2 FORMUL 3 HOH *254(H2 O) HELIX 1 AA1 THR A 4 ARG A 9 1 6 HELIX 2 AA2 ASP A 19 ASN A 29 1 11 HELIX 3 AA3 SER A 32 LYS A 49 1 18 HELIX 4 AA4 GLY A 57 PHE A 63 1 7 HELIX 5 AA5 ALA A 64 MET A 74 1 11 HELIX 6 AA6 SER A 75 ARG A 89 1 15 HELIX 7 AA7 THR A 92 ILE A 100 1 9 HELIX 8 AA8 SER A 102 GLN A 119 1 18 HELIX 9 AA9 SER A 132 LEU A 145 1 14 HELIX 10 AB1 ASP A 146 ASP A 160 1 15 HELIX 11 AB2 ASP A 164 GLY A 169 5 6 HELIX 12 AB3 GLU A 183 ARG A 187 5 5 HELIX 13 AB4 ASN A 197 ALA A 209 1 13 HELIX 14 AB5 ASP A 211 GLU A 217 1 7 HELIX 15 AB6 GLY A 235 CYS A 247 1 13 HELIX 16 AB7 GLU A 263 GLY A 265 5 3 HELIX 17 AB8 PHE A 280 VAL A 284 5 5 HELIX 18 AB9 SER A 310 ASN A 316 5 7 SHEET 1 AA1 6 ILE A 233 ALA A 234 0 SHEET 2 AA1 6 PHE A 219 GLN A 226 -1 N LEU A 225 O ILE A 233 SHEET 3 AA1 6 ILE A 300 LEU A 307 1 O VAL A 303 N GLN A 226 SHEET 4 AA1 6 MET A 286 LEU A 294 -1 N LEU A 293 O PHE A 302 SHEET 5 AA1 6 THR A 267 GLN A 276 -1 N ILE A 269 O PHE A 292 SHEET 6 AA1 6 LYS A 251 ALA A 261 -1 N ILE A 253 O THR A 274 SITE 1 AC1 20 LEU A 37 ILE A 40 TRP A 41 TRP A 110 SITE 2 AC1 20 TYR A 111 ILE A 151 THR A 152 ARG A 155 SITE 3 AC1 20 VAL A 158 TYR A 203 LEU A 207 CYS A 247 SITE 4 AC1 20 LEU A 252 VAL A 275 TRP A 279 PHE A 280 SITE 5 AC1 20 MET A 286 TRP A 290 ILE A 305 HOH A 716 CRYST1 95.019 95.019 78.523 90.00 90.00 120.00 P 32 2 1 6 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 0.010524 0.006076 0.000000 0.00000 SCALE2 0.000000 0.012152 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012735 0.00000