HEADER CAROTENOID BINDING PROTEIN 16-DEC-14 4XB4 TITLE STRUCTURE OF THE N-TERMINAL DOMAIN OF OCP BINDING CANTHAXANTHIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: ORANGE CAROTENOID-BINDING PROTEIN; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: OCP; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SYNECHOCYSTIS SP.; SOURCE 3 ORGANISM_TAXID: 1111708; SOURCE 4 STRAIN: PCC 6803 / KAZUSA; SOURCE 5 GENE: SLR1963; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS PHOTOPROTECTION, CAROTENOID BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR C.A.KERFELD,M.SUTTER,R.L.LEVERENZ REVDAT 5 27-SEP-23 4XB4 1 REMARK REVDAT 4 22-NOV-17 4XB4 1 REMARK REVDAT 3 30-DEC-15 4XB4 1 REMARK HET HETNAM REVDAT 2 09-SEP-15 4XB4 1 REMARK REVDAT 1 15-JUL-15 4XB4 0 JRNL AUTH R.L.LEVERENZ,M.SUTTER,A.WILSON,S.GUPTA,A.THUROTTE, JRNL AUTH 2 C.BOURCIER DE CARBON,C.J.PETZOLD,C.RALSTON,F.PERREAU, JRNL AUTH 3 D.KIRILOVSKY,C.A.KERFELD JRNL TITL PHOTOSYNTHESIS. A 12 ANGSTROM CAROTENOID TRANSLOCATION IN A JRNL TITL 2 PHOTOSWITCH ASSOCIATED WITH CYANOBACTERIAL PHOTOPROTECTION. JRNL REF SCIENCE V. 348 1463 2015 JRNL REFN ESSN 1095-9203 JRNL PMID 26113721 JRNL DOI 10.1126/SCIENCE.AAA7234 REMARK 2 REMARK 2 RESOLUTION. 1.54 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.9_1690) 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 : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.54 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 38.76 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.400 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.5 REMARK 3 NUMBER OF REFLECTIONS : 46063 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.148 REMARK 3 R VALUE (WORKING SET) : 0.147 REMARK 3 FREE R VALUE : 0.160 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.340 REMARK 3 FREE R VALUE TEST SET COUNT : 1998 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 38.7687 - 3.7211 1.00 3232 142 0.1429 0.1446 REMARK 3 2 3.7211 - 2.9539 1.00 3178 146 0.1378 0.1477 REMARK 3 3 2.9539 - 2.5806 1.00 3172 141 0.1388 0.1392 REMARK 3 4 2.5806 - 2.3447 1.00 3172 145 0.1287 0.1393 REMARK 3 5 2.3447 - 2.1766 1.00 3168 141 0.1302 0.1484 REMARK 3 6 2.1766 - 2.0483 1.00 3152 138 0.1350 0.1448 REMARK 3 7 2.0483 - 1.9457 1.00 3124 157 0.1426 0.1598 REMARK 3 8 1.9457 - 1.8610 1.00 3163 142 0.1548 0.1932 REMARK 3 9 1.8610 - 1.7894 1.00 3147 134 0.1607 0.1925 REMARK 3 10 1.7894 - 1.7276 1.00 3142 149 0.1663 0.1939 REMARK 3 11 1.7276 - 1.6736 1.00 3140 136 0.1701 0.1860 REMARK 3 12 1.6736 - 1.6258 1.00 3164 151 0.1901 0.2031 REMARK 3 13 1.6258 - 1.5830 1.00 3123 135 0.2086 0.2416 REMARK 3 14 1.5830 - 1.5444 0.95 2988 141 0.2833 0.3235 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL 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) : 0.160 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 16.810 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 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 : 0.007 2330 REMARK 3 ANGLE : 1.042 3180 REMARK 3 CHIRALITY : 0.032 348 REMARK 3 PLANARITY : 0.006 422 REMARK 3 DIHEDRAL : 17.165 872 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 4XB4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-DEC-14. REMARK 100 THE DEPOSITION ID IS D_1000205378. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-AUG-14 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL 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 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : SCALA, XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 46069 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.540 REMARK 200 RESOLUTION RANGE LOW (A) : 39.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : 7.200 REMARK 200 R MERGE (I) : 0.02469 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 13.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.54 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.60 REMARK 200 COMPLETENESS FOR SHELL (%) : 96.3 REMARK 200 DATA REDUNDANCY IN SHELL : 2.00 REMARK 200 R MERGE FOR SHELL (I) : 0.31470 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.520 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: TRUNCATED VERSION OF 3MG1 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 51.45 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.53 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM CITRIC ACID BIS-TRIS PROPANE PH REMARK 280 5.5, 24% POLY-ETHYLENE GLYCOL 3350, VAPOR DIFFUSION, SITTING REMARK 280 DROP, TEMPERATURE 295K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 32.05600 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 350 REMARK 350 BIOMOLECULE: 2 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: 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 LEU A 51 REMARK 465 THR A 52 REMARK 465 ILE A 53 REMARK 465 ALA A 54 REMARK 465 ALA A 55 REMARK 465 PRO A 56 REMARK 465 GLY A 57 REMARK 465 ALA A 58 REMARK 465 ALA A 59 REMARK 465 HIS A 166 REMARK 465 HIS A 167 REMARK 465 HIS A 168 REMARK 465 HIS A 169 REMARK 465 HIS A 170 REMARK 465 HIS A 171 REMARK 465 ALA B 165 REMARK 465 HIS B 166 REMARK 465 HIS B 167 REMARK 465 HIS B 168 REMARK 465 HIS B 169 REMARK 465 HIS B 170 REMARK 465 HIS B 171 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 HE ARG B 112 O HOH B 303 1.57 REMARK 500 O HOH B 379 O HOH B 480 1.92 REMARK 500 O HOH A 309 O HOH A 419 1.94 REMARK 500 O HOH A 427 O HOH B 380 1.98 REMARK 500 O HOH B 475 O HOH B 493 1.99 REMARK 500 O HOH B 443 O HOH B 450 2.00 REMARK 500 O HOH B 443 O HOH B 461 2.03 REMARK 500 O HOH B 483 O HOH B 491 2.04 REMARK 500 OE1 GLU B 146 O HOH B 301 2.06 REMARK 500 O HOH A 308 O HOH A 411 2.09 REMARK 500 O HOH A 312 O HOH A 448 2.10 REMARK 500 O HOH B 449 O HOH B 465 2.11 REMARK 500 O HOH A 437 O HOH A 463 2.11 REMARK 500 O HOH A 406 O HOH A 463 2.12 REMARK 500 O HOH A 429 O HOH A 458 2.14 REMARK 500 O HOH B 387 O HOH B 448 2.15 REMARK 500 O HOH B 458 O HOH B 459 2.17 REMARK 500 SG CYS A 84 O HOH A 452 2.17 REMARK 500 O HOH B 406 O HOH B 480 2.19 REMARK 500 O HOH A 443 O HOH A 455 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 364 O HOH B 439 1556 1.88 REMARK 500 O HOH A 442 O HOH B 339 2555 2.12 REMARK 500 O HOH A 346 O HOH B 468 1556 2.17 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 GLN A 62 -135.54 48.50 REMARK 500 MET B 47 -36.84 -130.25 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 467 DISTANCE = 5.90 ANGSTROMS REMARK 525 HOH B 497 DISTANCE = 6.14 ANGSTROMS 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 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue 45D B 201 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4XB5 RELATED DB: PDB DBREF 4XB4 A 21 165 UNP P74102 OCP_SYNY3 21 165 DBREF 4XB4 B 21 165 UNP P74102 OCP_SYNY3 21 165 SEQADV 4XB4 MET A 20 UNP P74102 INITIATING METHIONINE SEQADV 4XB4 HIS A 166 UNP P74102 EXPRESSION TAG SEQADV 4XB4 HIS A 167 UNP P74102 EXPRESSION TAG SEQADV 4XB4 HIS A 168 UNP P74102 EXPRESSION TAG SEQADV 4XB4 HIS A 169 UNP P74102 EXPRESSION TAG SEQADV 4XB4 HIS A 170 UNP P74102 EXPRESSION TAG SEQADV 4XB4 HIS A 171 UNP P74102 EXPRESSION TAG SEQADV 4XB4 MET B 20 UNP P74102 INITIATING METHIONINE SEQADV 4XB4 HIS B 166 UNP P74102 EXPRESSION TAG SEQADV 4XB4 HIS B 167 UNP P74102 EXPRESSION TAG SEQADV 4XB4 HIS B 168 UNP P74102 EXPRESSION TAG SEQADV 4XB4 HIS B 169 UNP P74102 EXPRESSION TAG SEQADV 4XB4 HIS B 170 UNP P74102 EXPRESSION TAG SEQADV 4XB4 HIS B 171 UNP P74102 EXPRESSION TAG SEQRES 1 A 152 MET VAL PRO ALA THR ILE ALA ARG PHE SER GLN LEU ASN SEQRES 2 A 152 ALA GLU ASP GLN LEU ALA LEU ILE TRP PHE ALA TYR LEU SEQRES 3 A 152 GLU MET GLY LYS THR LEU THR ILE ALA ALA PRO GLY ALA SEQRES 4 A 152 ALA SER MET GLN LEU ALA GLU ASN ALA LEU LYS GLU ILE SEQRES 5 A 152 GLN ALA MET GLY PRO LEU GLN GLN THR GLN ALA MET CYS SEQRES 6 A 152 ASP LEU ALA ASN ARG ALA ASP THR PRO LEU CYS ARG THR SEQRES 7 A 152 TYR ALA SER TRP SER PRO ASN ILE LYS LEU GLY PHE TRP SEQRES 8 A 152 TYR ARG LEU GLY GLU LEU MET GLU GLN GLY PHE VAL ALA SEQRES 9 A 152 PRO ILE PRO ALA GLY TYR GLN LEU SER ALA ASN ALA ASN SEQRES 10 A 152 ALA VAL LEU ALA THR ILE GLN GLY LEU GLU SER GLY GLN SEQRES 11 A 152 GLN ILE THR VAL LEU ARG ASN ALA VAL VAL ASP MET GLY SEQRES 12 A 152 PHE THR ALA HIS HIS HIS HIS HIS HIS SEQRES 1 B 152 MET VAL PRO ALA THR ILE ALA ARG PHE SER GLN LEU ASN SEQRES 2 B 152 ALA GLU ASP GLN LEU ALA LEU ILE TRP PHE ALA TYR LEU SEQRES 3 B 152 GLU MET GLY LYS THR LEU THR ILE ALA ALA PRO GLY ALA SEQRES 4 B 152 ALA SER MET GLN LEU ALA GLU ASN ALA LEU LYS GLU ILE SEQRES 5 B 152 GLN ALA MET GLY PRO LEU GLN GLN THR GLN ALA MET CYS SEQRES 6 B 152 ASP LEU ALA ASN ARG ALA ASP THR PRO LEU CYS ARG THR SEQRES 7 B 152 TYR ALA SER TRP SER PRO ASN ILE LYS LEU GLY PHE TRP SEQRES 8 B 152 TYR ARG LEU GLY GLU LEU MET GLU GLN GLY PHE VAL ALA SEQRES 9 B 152 PRO ILE PRO ALA GLY TYR GLN LEU SER ALA ASN ALA ASN SEQRES 10 B 152 ALA VAL LEU ALA THR ILE GLN GLY LEU GLU SER GLY GLN SEQRES 11 B 152 GLN ILE THR VAL LEU ARG ASN ALA VAL VAL ASP MET GLY SEQRES 12 B 152 PHE THR ALA HIS HIS HIS HIS HIS HIS HET 45D A 201 94 HET 45D B 201 94 HETNAM 45D BETA,BETA-CAROTENE-4,4'-DIONE HETSYN 45D ISOMER OF CANTHAXANTHIN FORMUL 3 45D 2(C40 H52 O2) FORMUL 5 HOH *364(H2 O) HELIX 1 AA1 MET A 20 LEU A 31 1 12 HELIX 2 AA2 ASN A 32 GLY A 48 1 17 HELIX 3 AA3 MET A 61 LEU A 63 5 3 HELIX 4 AA4 ALA A 64 MET A 74 1 11 HELIX 5 AA5 GLY A 75 ARG A 89 1 15 HELIX 6 AA6 THR A 92 SER A 100 1 9 HELIX 7 AA7 SER A 102 GLN A 119 1 18 HELIX 8 AA8 SER A 132 GLY A 144 1 13 HELIX 9 AA9 GLU A 146 ASP A 160 1 15 HELIX 10 AB1 VAL B 21 LEU B 31 1 11 HELIX 11 AB2 ASN B 32 MET B 47 1 16 HELIX 12 AB3 MET B 47 ALA B 55 1 9 HELIX 13 AB4 MET B 61 LEU B 63 5 3 HELIX 14 AB5 ALA B 64 MET B 74 1 11 HELIX 15 AB6 GLY B 75 ARG B 89 1 15 HELIX 16 AB7 THR B 92 SER B 100 1 9 HELIX 17 AB8 SER B 102 GLY B 120 1 19 HELIX 18 AB9 SER B 132 GLY B 144 1 13 HELIX 19 AC1 GLU B 146 ASP B 160 1 15 SITE 1 AC1 13 GLU A 34 LEU A 37 ILE A 40 TRP A 41 SITE 2 AC1 13 TYR A 44 THR A 80 MET A 83 ASN A 104 SITE 3 AC1 13 TRP A 110 MET A 117 PRO A 126 TYR A 129 SITE 4 AC1 13 HOH A 324 SITE 1 AC2 20 HOH A 384 GLU B 34 LEU B 37 ILE B 40 SITE 2 AC2 20 TRP B 41 TYR B 44 THR B 52 GLY B 57 SITE 3 AC2 20 ALA B 59 THR B 80 MET B 83 ASN B 104 SITE 4 AC2 20 TRP B 110 GLY B 114 MET B 117 TYR B 129 SITE 5 AC2 20 ILE B 151 HOH B 386 HOH B 410 HOH B 426 CRYST1 51.251 64.112 53.634 90.00 114.89 90.00 P 1 21 1 4 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 0.019512 0.000000 0.009053 0.00000 SCALE2 0.000000 0.015598 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020554 0.00000