HEADER LUMINESCENT PROTEIN 05-MAR-04 1SL9 TITLE OBELIN FROM OBELIA LONGISSIMA COMPND MOL_ID: 1; COMPND 2 MOLECULE: OBELIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: OBL; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: 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: PLAZMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET19-OL8 KEYWDS PHOTOPROTEIN, OBELIN, BIOLUMINESCENCE, ATOMIC RESOLUTION, CALCIUM KEYWDS 2 BINDING, EF-HAND, STRUCTURAL GENOMICS, PSI, PROTEIN STRUCTURE KEYWDS 3 INITIATIVE, SOUTHEAST COLLABORATORY FOR STRUCTURAL GENOMICS, SECSG, KEYWDS 4 LUMINESCENT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR L.DENG,S.MARKOVA,E.VYSOTSKI,Z.-J.LIU,J.LEE,J.ROSE,B.-C.WANG,SOUTHEAST AUTHOR 2 COLLABORATORY FOR STRUCTURAL GENOMICS (SECSG) REVDAT 4 23-AUG-23 1SL9 1 REMARK REVDAT 3 27-OCT-21 1SL9 1 REMARK SEQADV REVDAT 2 24-FEB-09 1SL9 1 VERSN REVDAT 1 19-JUL-05 1SL9 0 JRNL AUTH L.DENG,S.MARKOVA,E.VYSOTSKI,Z.-J.LIU,J.LEE,J.ROSE,B.-C.WANG, JRNL AUTH 2 SOUTHEAST COLLABORATORY FOR STRUCTURAL GENOMICS JRNL TITL OBELIN FROM OBELIA LONGISSIMA JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH Z.-J.LIU,E.S.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.S.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.S.VYSOTSKI,Z.-J.LIU,S.V.MARKOVA,N.P.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.S.VYSOTSKI,Z.-J.LIU,S.V.MARKOVA,J.BLINKS,L.DENG,L.A.FRANK, REMARK 1 AUTH 2 M.HERKO,N.P.MALIKOVA,J.P.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 1 REFERENCE 5 REMARK 1 AUTH Z.-J.LIU,E.S.VYSOTSKI,L.DENG,J.LEE,J.ROSE,B.-C.WANG REMARK 1 TITL ATOMIC RESOLUTION STRUCTURE OF OBELIN: SOAKING WITH CALCIUM REMARK 1 TITL 2 ENHANCES ELECTRON DENSITY OF THE SECOND OXYGEN ATOM REMARK 1 TITL 3 SUBSTITUTED AT THE C2-POSITION OF COELENTERAZINE REMARK 1 REF BIOCHEM.BIOPHYS.RES.COMMUN. V. 311 433 2003 REMARK 1 REFN ISSN 0006-291X REMARK 1 DOI 10.1016/J.BBRC.2003.09.231 REMARK 1 REFERENCE 6 REMARK 1 AUTH L.DENG,S.V.MARKOVA,E.S.VYSOTSKI,Z.-J.LIU,J.LEE,J.ROSE, REMARK 1 AUTH 2 B.-C.WANG REMARK 1 TITL PREPARATION AND X-RAY CRYSTALLOGRAPHIC ANALYSIS OF THE REMARK 1 TITL 2 CA2+-DISCHARGED PHOTOPROTEIN OBELIN REMARK 1 REF TO BE PUBLISHED REMARK 1 REFN REMARK 2 REMARK 2 RESOLUTION. 1.17 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) : 1.17 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) : 0.157 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.163 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.196 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 8.700 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 5238 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 65465 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.146 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.152 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.185 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 8.700 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 4530 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 52312 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1500 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 33 REMARK 3 SOLVENT ATOMS : 211 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 1743.1 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 1378.0 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 7 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 14799 REMARK 3 NUMBER OF RESTRAINTS : 17990 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.014 REMARK 3 ANGLE DISTANCES (A) : 0.032 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) : 0.061 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.088 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.048 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.004 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.047 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: REMARK 3 ANISOTROPIC REFINEMENT REDUCED FREE R (NO CUTOFF) BY REMARK 3 0.129 REMARK 4 REMARK 4 1SL9 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-MAR-04. REMARK 100 THE DEPOSITION ID IS D_1000021811. 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 : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 5.0.3 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 : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 61453 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.170 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 (%) : 84.7 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.04500 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) : 1.17 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.21 REMARK 200 COMPLETENESS FOR SHELL (%) : 65.7 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.24900 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 (%): 50.07 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.46 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8000, POTASSIUM PHOSPHATE, REMARK 280 HEXAMINECOBALTIC CHLORIDE , PH 6.0, 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 41.51050 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 27.17050 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 41.51050 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 27.17050 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 A 453 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 ASP A 123 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 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 TYR A 5 CA - CB - CG ANGL. DEV. = 14.4 DEGREES REMARK 500 ARG A 73 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 ARG A 73 NE - CZ - NH2 ANGL. DEV. = -4.5 DEGREES REMARK 500 CYS A 75 CB - CA - C ANGL. DEV. = 8.9 DEGREES REMARK 500 CYS A 75 CB - CA - C ANGL. DEV. = -17.1 DEGREES REMARK 500 ARG A 105 CD - NE - CZ ANGL. DEV. = 16.1 DEGREES REMARK 500 ASP A 150 CB - CG - OD2 ANGL. DEV. = -7.8 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 56.82 -145.27 REMARK 500 ASP A 49 -71.22 -103.56 REMARK 500 REMARK 500 REMARK: NULL REMARK 610 REMARK 610 MISSING HETEROATOM REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 610 I=INSERTION CODE): REMARK 610 M RES C SSEQI REMARK 610 CZH A 201 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CZH A 201 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: 1QV0 RELATED DB: PDB REMARK 900 CONTAINS CALCIUM-REGULATED PHOTOPROTEIN OBELIN REMARK 900 RELATED ID: 1QV1 RELATED DB: PDB REMARK 900 CONTAINS CALCIUM-REGULATED PHOTOPROTEIN OBELIN REMARK 900 RELATED ID: 1S36 RELATED DB: PDB REMARK 900 CONTAINS CALCIUM-DISCHARGED PHOTOPROTEIN W92F OBELIN REMARK 900 RELATED ID: 1SL7 RELATED DB: PDB REMARK 900 CONTAINS CALCIUM-LOADED APO-OBELIN REMARK 900 RELATED ID: 1SL8 RELATED DB: PDB REMARK 900 CONTAINS CALCIUM-LOADED APO-AEQUORIN DBREF 1SL9 A 1 195 UNP Q27709 OBL_OBELO 1 195 SEQADV 1SL9 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 CZH A 201 33 HETNAM CZH C2-HYDROPEROXY-COELENTERAZINE 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 FORMUL 2 CZH C26 H21 N3 O5 FORMUL 3 HOH *211(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 VAL A 68 1 12 HELIX 5 5 ALA A 70 GLY A 76 5 7 HELIX 6 6 ALA A 84 ARG A 105 1 22 HELIX 7 7 THR A 109 PHE A 122 1 14 HELIX 8 8 THR A 131 GLY A 143 1 13 HELIX 9 9 SER A 147 CYS A 158 1 12 HELIX 10 10 VAL A 168 TYR A 180 1 13 HELIX 11 11 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 SITE 1 AC1 13 HIS A 22 MET A 25 ILE A 42 ILE A 50 SITE 2 AC1 13 PHE A 88 TRP A 92 TRP A 114 GLY A 115 SITE 3 AC1 13 TYR A 138 ILE A 144 HIS A 175 TRP A 179 SITE 4 AC1 13 TYR A 190 CRYST1 83.021 54.341 52.442 90.00 112.15 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 0.012045 0.000000 0.004903 0.00000 SCALE2 0.000000 0.018402 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020588 0.00000