PDB Short entry for 1QV0 HEADER LUMINESCENT PROTEIN 26-AUG-03 1QV0 TITLE ATOMIC RESOLUTION STRUCTURE OF OBELIN FROM OBELIA LONGISSIMA COMPND MOL_ID: 1; COMPND 2 MOLECULE: OBELIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: OBL; COMPND 5 EC: 1.13.12.5; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: OBELIA LONGISSIMA; SOURCE 3 ORGANISM_TAXID: 32570; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21-GOLD; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET19-OL8 KEYWDS PHOTOPROTEIN, OBELIN, BIOLUMINESCENCE, ATOMIC RESOLUTION, CALCIUM KEYWDS 2 BINDING, EF-HAND, LUMINESCENT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR Z.J.LIU,E.S.VYSOTSKI,L.DENG,J.LEE,J.ROSE,B.C.WANG REVDAT 6 16-AUG-23 1QV0 1 REMARK REVDAT 5 27-OCT-21 1QV0 1 REMARK SEQADV LINK REVDAT 4 13-JUL-11 1QV0 1 VERSN REVDAT 3 24-FEB-09 1QV0 1 VERSN REVDAT 2 27-JAN-04 1QV0 1 JRNL REVDAT 1 11-NOV-03 1QV0 0 JRNL AUTH Z.J.LIU,E.S.VYSOTSKI,L.DENG,J.LEE,J.ROSE,B.C.WANG JRNL TITL ATOMIC RESOLUTION STRUCTURE OF OBELIN: SOAKING WITH CALCIUM JRNL TITL 2 ENHANCES ELECTRON DENSITY OF THE SECOND OXYGEN ATOM JRNL TITL 3 SUBSTITUTED AT THE C2-POSITION OF COELENTERAZINE. JRNL REF BIOCHEM.BIOPHYS.RES.COMMUN. V. 311 433 2003 JRNL REFN ISSN 0006-291X JRNL PMID 14592432 JRNL DOI 10.1016/J.BBRC.2003.09.231 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH Z.-J.LIU,E.VYSOTSKI,C.-J.CHEN,J.ROSE,J.LEE,B.-C.WANG REMARK 1 TITL STRUCTURE OF THE CA2+-REGULATED PHOTOPROTEIN OBELIN AT 1.7 REMARK 1 TITL 2 RESOLUTION DETERMINED DIRECTLY FROM ITS SULFUR SUBSTRUCTURE REMARK 1 REF PROTEIN SCI. V. 9 2085 2000 REMARK 1 REFN ISSN 0961-8368 REMARK 1 REFERENCE 2 REMARK 1 AUTH E.VYSOTSKI,Z.-J.LIU,J.ROSE,B.-C.WANG,J.LEE REMARK 1 TITL PREPARATION AND PRELIMINARY STUDY OF CRYSTALS OF THE REMARK 1 TITL 2 RECOMBINANT CALCIUM-REGULATED PHOTOPROTEIN OBELIN FROM THE REMARK 1 TITL 3 BIOLUMINESCENT HYDROID OBELIA LONGISSIMA REMARK 1 REF ACTA CRYSTALLOGR.,SECT.D V. 55 1965 1999 REMARK 1 REFN ISSN 0907-4449 REMARK 1 DOI 10.1107/S0907444999011828 REMARK 1 REFERENCE 3 REMARK 1 AUTH L.DENG,E.VYSOTSKI,Z.-J.LIU,S.MARKOVA,N.MALIKOVA,J.LEE, REMARK 1 AUTH 2 J.ROSE,B.-C.WANG REMARK 1 TITL STRUCTURAL BASIS FOR THE EMISSION OF VIOLET BIOLUMINESCENCE REMARK 1 TITL 2 FROM A W92F OBELIN MUTANT REMARK 1 REF FEBS LETT. V. 506 281 2001 REMARK 1 REFN ISSN 0014-5793 REMARK 1 DOI 10.1016/S0014-5793(01)02937-4 REMARK 1 REFERENCE 4 REMARK 1 AUTH E.VYSOTSKI,Z.-J.LIU,S.MARKOVA,J.BLINKS,L.DENG,L.FRANK, REMARK 1 AUTH 2 M.HERKO,N.MALIKOVA,J.ROSE,B.-C.WANG,J.LEE REMARK 1 TITL VIOLET BIOLUMINESCENCE AND FAST KINETICS FROM W92F OBELIN: REMARK 1 TITL 2 STRUCTURE-BASED PROPOSALS FOR THE BIOLUMINESCENCE TRIGGERING REMARK 1 TITL 3 AND THE IDENTIFICATION OF THE EMITTING SPECIES REMARK 1 REF BIOCHEMISTRY V. 42 6013 2003 REMARK 1 REFN ISSN 0006-2960 REMARK 1 DOI 10.1021/BI027258H REMARK 2 REMARK 2 RESOLUTION. 1.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 92.0 REMARK 3 CROSS-VALIDATION METHOD : FREE R REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.134 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.133 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.161 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 8.700 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 6073 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 76386 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.132 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.131 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.159 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 8.700 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 5876 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 67827 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1491 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 43 REMARK 3 SOLVENT ATOMS : 233 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 1783.0 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 1382.0 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 9 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 15166 REMARK 3 NUMBER OF RESTRAINTS : 18501 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.015 REMARK 3 ANGLE DISTANCES (A) : 0.033 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.023 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.075 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.095 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.050 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.005 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.040 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.000 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: ANISOTROPIC REFINEMENT REDUCED FREE R REMARK 3 (NO CUTOFF) BY 0.0153 REMARK 4 REMARK 4 1QV0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-AUG-03. REMARK 100 THE DEPOSITION ID IS D_1000020103. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 12-AUG-01 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.8 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) : 1.0 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 210 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 85842 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.100 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.04600 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.10 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.16 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.09600 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1EL4 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.01 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG8000, POTASSIUM PHOSPHATE, REMARK 280 HEXAMINECOBALTIC CHLORIDE , PH 5.8, VAPOR DIFFUSION, HANGING REMARK 280 DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z REMARK 290 4555 -X+1/2,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 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 41.54400 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 27.05550 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 41.54400 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 27.05550 REMARK 290 SMTRY3 4 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: MONOMERIC 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A1073 LIES ON A SPECIAL POSITION. REMARK 375 HOH A1165 LIES ON A SPECIAL POSITION. 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 SER A 2 REMARK 465 SER A 3 REMARK 465 LYS A 4 REMARK 465 TYR A 5 REMARK 465 ALA A 6 REMARK 465 LYS A 124 REMARK 465 ASP A 125 REMARK 465 GLY A 126 REMARK 465 SER A 127 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 GLU A 69 CD GLU A 69 OE2 0.066 REMARK 500 REMARK 500 REMARK: NULL 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 CYS A 75 CB - CA - C ANGL. DEV. = -20.0 DEGREES REMARK 500 CYS A 75 CB - CA - C ANGL. DEV. = 10.0 DEGREES REMARK 500 CYS A 75 N - CA - CB ANGL. DEV. = 9.2 DEGREES REMARK 500 ARG A 105 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 ARG A 112 NE - CZ - NH2 ANGL. DEV. = -3.5 DEGREES REMARK 500 TYR A 180 CB - CG - CD2 ANGL. DEV. = 4.3 DEGREES REMARK 500 TYR A 190 CB - CG - CD1 ANGL. DEV. = 3.9 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 ASP A 12 57.11 -146.22 REMARK 500 ASP A 49 -67.94 -104.93 REMARK 500 SER A 145 74.32 -150.78 REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 403 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 PHE A 155 O REMARK 620 2 ARG A 156 O 75.0 REMARK 620 3 CYS A 158 O 76.7 83.8 REMARK 620 4 HOH A1102 O 126.5 148.6 80.3 REMARK 620 5 HOH A1105 O 126.0 56.6 75.8 93.0 REMARK 620 6 HOH A1164 O 82.5 99.5 157.3 105.5 124.9 REMARK 620 7 HOH A1183 O 146.6 83.7 126.7 84.3 54.4 76.0 REMARK 620 N 1 2 3 4 5 6 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 403 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CZH A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 301 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1EL4 RELATED DB: PDB REMARK 900 CONTAINS CALCIUM-REGULATED PHOTOPROTEIN OBELIN REMARK 900 RELATED ID: 1EJ3 RELATED DB: PDB REMARK 900 CONTAINS CALCIUM-REGULATED PHOTOPROTEIN AEQUORIN REMARK 900 RELATED ID: 1JF0 RELATED DB: PDB REMARK 900 CONTAINS CALCIUM-REGULATED PHOTOPROTEIN OBELIN REMARK 900 RELATED ID: 1JF2 RELATED DB: PDB REMARK 900 CONTAINS CALCIUM-REGULATED PHOTOPROTEIN OBELIN W92F MUTANT REMARK 900 RELATED ID: 1QV1 RELATED DB: PDB REMARK 900 ATOMIC RESOLUTION STRUCTURE OF OBELIN FROM OBELIA LONGISSIMA DBREF 1QV0 A 1 195 UNP Q27709 OBL_OBELO 1 195 SEQADV 1QV0 ALA A 163 UNP Q27709 SER 163 ENGINEERED MUTATION SEQRES 1 A 195 MET SER SER LYS TYR ALA VAL LYS LEU LYS THR ASP PHE SEQRES 2 A 195 ASP ASN PRO ARG TRP ILE LYS ARG HIS LYS HIS MET PHE SEQRES 3 A 195 ASP PHE LEU ASP ILE ASN GLY ASN GLY LYS ILE THR LEU SEQRES 4 A 195 ASP GLU ILE VAL SER LYS ALA SER ASP ASP ILE CYS ALA SEQRES 5 A 195 LYS LEU GLU ALA THR PRO GLU GLN THR LYS ARG HIS GLN SEQRES 6 A 195 VAL CYS VAL GLU ALA PHE PHE ARG GLY CYS GLY MET GLU SEQRES 7 A 195 TYR GLY LYS GLU ILE ALA PHE PRO GLN PHE LEU ASP GLY SEQRES 8 A 195 TRP LYS GLN LEU ALA THR SER GLU LEU LYS LYS TRP ALA SEQRES 9 A 195 ARG ASN GLU PRO THR LEU ILE ARG GLU TRP GLY ASP ALA SEQRES 10 A 195 VAL PHE ASP ILE PHE ASP LYS ASP GLY SER GLY THR ILE SEQRES 11 A 195 THR LEU ASP GLU TRP LYS ALA TYR GLY LYS ILE SER GLY SEQRES 12 A 195 ILE SER PRO SER GLN GLU ASP CYS GLU ALA THR PHE ARG SEQRES 13 A 195 HIS CYS ASP LEU ASP ASN ALA GLY ASP LEU ASP VAL ASP SEQRES 14 A 195 GLU MET THR ARG GLN HIS LEU GLY PHE TRP TYR THR LEU SEQRES 15 A 195 ASP PRO GLU ALA ASP GLY LEU TYR GLY ASN GLY VAL PRO HET CO A 401 1 HET CO A 402 1 HET K A 403 1 HET CZH A 201 34 HET GOL A 301 6 HETNAM CO COBALT (II) ION HETNAM K POTASSIUM ION HETNAM CZH C2-HYDROPEROXY-COELENTERAZINE HETNAM GOL GLYCEROL HETSYN CZH 8-BENZYL-2-HYDROPEROXY-2-(4-HYDROXY-BENZYL)-6-(4- HETSYN 2 CZH HYDROXY-PHENYL)-2H-IMIDAZO[1,2-A]PYRAZIN-3-ONE HETSYN GOL GLYCERIN; PROPANE-1,2,3-TRIOL FORMUL 2 CO 2(CO 2+) FORMUL 4 K K 1+ FORMUL 5 CZH C26 H21 N3 O5 FORMUL 6 GOL C3 H8 O3 FORMUL 7 HOH *233(H2 O) HELIX 1 1 ASN A 15 ASP A 30 1 16 HELIX 2 2 THR A 38 ASP A 49 1 12 HELIX 3 3 ASP A 49 LEU A 54 1 6 HELIX 4 4 THR A 57 CYS A 75 1 19 HELIX 5 5 ALA A 84 ARG A 105 1 22 HELIX 6 6 THR A 109 PHE A 122 1 14 HELIX 7 7 THR A 131 GLY A 143 1 13 HELIX 8 8 SER A 147 CYS A 158 1 12 HELIX 9 9 VAL A 168 TYR A 180 1 13 HELIX 10 10 ASP A 183 ASP A 187 5 5 SHEET 1 A 2 THR A 129 ILE A 130 0 SHEET 2 A 2 LEU A 166 ASP A 167 -1 O LEU A 166 N ILE A 130 LINK O PHE A 155 K K A 403 1555 1555 2.71 LINK O ARG A 156 K K A 403 1555 1555 2.90 LINK O CYS A 158 K K A 403 1555 1555 2.61 LINK K K A 403 O HOH A1102 1555 1555 2.82 LINK K K A 403 O HOH A1105 1555 1555 2.28 LINK K K A 403 O HOH A1164 1555 1555 2.85 LINK K K A 403 O HOH A1183 1555 4557 3.14 SITE 1 AC1 6 PHE A 155 ARG A 156 CYS A 158 HOH A1102 SITE 2 AC1 6 HOH A1105 HOH A1164 SITE 1 AC2 16 HIS A 22 MET A 25 ILE A 42 ILE A 50 SITE 2 AC2 16 PHE A 88 TRP A 92 TRP A 114 GLY A 115 SITE 3 AC2 16 PHE A 119 TYR A 138 ILE A 144 MET A 171 SITE 4 AC2 16 HIS A 175 TRP A 179 TYR A 190 HOH A1048 SITE 1 AC3 6 HIS A 24 GLY A 143 ILE A 144 PRO A 146 SITE 2 AC3 6 GLY A 193 HOH A1075 CRYST1 83.088 54.111 52.535 90.00 112.07 90.00 C 1 2 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 0.012035 0.000000 0.004880 0.00000 SCALE2 0.000000 0.018481 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020540 0.00000