HEADER FLUORESCENT PROTEIN 15-AUG-07 2QZ0 TITLE MATURE Q183E VARIANT OF GREEN FLUORESCENT PROTEIN CHROMOPHORE COMPND MOL_ID: 1; COMPND 2 MOLECULE: GREEN FLUORESCENT PROTEIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: AEQUOREA VICTORIA; SOURCE 3 ORGANISM_COMMON: JELLYFISH; SOURCE 4 ORGANISM_TAXID: 6100; SOURCE 5 GENE: GFP; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21/DE3, PRIL; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PTIW188 KEYWDS GFP, CHROMOPHORE MATURATION, MATURE FORM Q183E, CHROMOPHORE, KEYWDS 2 LUMINESCENCE, PHOTOPROTEIN, FLUORESCENT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR T.I.WOOD,D.P.BARONDEAU,C.HITOMI,J.A.TAINER,E.D.GETZOFF REVDAT 4 15-NOV-23 2QZ0 1 ATOM REVDAT 3 30-AUG-23 2QZ0 1 REMARK REVDAT 2 20-OCT-21 2QZ0 1 REMARK SEQADV LINK REVDAT 1 21-APR-09 2QZ0 0 JRNL AUTH T.I.WOOD,D.P.BARONDEAU,C.HITOMI,J.A.TAINER,E.D.GETZOFF JRNL TITL KINETICALLY ISOLATED REACTION INTERMEDIATES PROVIDE JRNL TITL 2 STRUCTURAL CHARACTERIZATION OF THE GFP FLUOROPHORE JRNL TITL 3 BIOSYNTHESIS PATHWAY JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.20 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) : 1.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT 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) : 0.170 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.170 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.170 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 3421 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 67156 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : NULL REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1795 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 399 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : NULL REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : NULL REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : NULL REMARK 3 NUMBER OF RESTRAINTS : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.014 REMARK 3 ANGLE DISTANCES (A) : 0.030 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : NULL REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : NULL REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2QZ0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-FEB-09. REMARK 100 THE DEPOSITION ID IS D_1000044222. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 12-JUN-03 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 8.3.1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.00 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : DOUBLE CRYSTAL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 68116 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.200 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 7.700 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.1 REMARK 200 DATA REDUNDANCY : 3.940 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04900 REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.28 REMARK 200 COMPLETENESS FOR SHELL (%) : 72.8 REMARK 200 DATA REDUNDANCY IN SHELL : 1.84 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.11700 REMARK 200 FOR SHELL : 7.730 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1EMA REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.79 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.23 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG4000, MAGNESIUM CHLORIDE, HEPES, PH REMARK 280 8.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 25.60500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 35.81500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 31.29150 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 35.81500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.60500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 31.29150 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 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 0 REMARK 465 ALA A 1 REMARK 465 SER A 2 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 229 O 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 HG3 GLU A 32 O HOH A 1169 1.41 REMARK 500 HZ2 LYS A 166 OD1 ASP A 180 1.59 REMARK 500 O HOH A 1098 O HOH A 1189 1.84 REMARK 500 O HOH A 1368 O HOH A 1476 1.92 REMARK 500 O HOH A 1407 O HOH A 1422 2.07 REMARK 500 O HOH A 1092 O HOH A 1190 2.10 REMARK 500 O HOH A 1134 O HOH A 1449 2.10 REMARK 500 CG GLU A 32 O HOH A 1169 2.13 REMARK 500 O HOH A 1083 O HOH A 1483 2.16 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 PRO A 187 O HOH A 1386 2555 0.74 REMARK 500 O HOH A 1427 O HOH A 1444 4555 1.56 REMARK 500 O HOH A 1042 O HOH A 1177 4555 1.95 REMARK 500 C PRO A 187 O HOH A 1386 2555 1.95 REMARK 500 OD2 ASP A 102 O HOH A 1184 4445 2.06 REMARK 500 O HOH A 1141 O HOH A 1172 4555 2.12 REMARK 500 O HOH A 1169 O HOH A 1174 4555 2.19 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 ARG A 96 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 ARG A 109 NE - CZ - NH1 ANGL. DEV. = -3.0 DEGREES REMARK 500 ARG A 122 NE - CZ - NH2 ANGL. DEV. = 3.6 DEGREES REMARK 500 ASP A 180 CB - CG - OD1 ANGL. DEV. = 6.0 DEGREES REMARK 500 ASP A 180 CB - CG - OD2 ANGL. DEV. = -7.0 DEGREES 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 MG A 300 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 301 O REMARK 620 2 HOH A 302 O 84.1 REMARK 620 3 HOH A 303 O 89.6 171.7 REMARK 620 4 HOH A 304 O 95.0 89.4 85.7 REMARK 620 5 HOH A 305 O 88.6 92.6 92.6 176.0 REMARK 620 6 HOH A 306 O 174.9 93.6 93.1 89.5 87.0 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 300 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2QRF RELATED DB: PDB REMARK 900 CYCLIZED INTERMEDIATE OF Q183E VARIANT IN GREEN FLUORESCENT PROTEIN REMARK 900 CHROMOPHORE FORMATION REMARK 900 RELATED ID: 2QT2 RELATED DB: PDB REMARK 900 CYCLIZED-DEHYDRATED INTERMEDIATE OF Q183E VARIANT IN GREEN REMARK 900 FLUORESCENT PROTEIN CHROMOPHORE FORMATION REMARK 900 RELATED ID: 2AWJ RELATED DB: PDB REMARK 900 R96M PRECYCLIZED GREEN FLUORESCENT PROTEIN VARIANT REMARK 900 RELATED ID: 2AWL RELATED DB: PDB REMARK 900 MATURE R96K VARIANT OF GREEN FLUORESCENT PROTEIN REMARK 900 RELATED ID: 2AWM RELATED DB: PDB REMARK 900 GFP R96A CHROMOPHORE MATURATION RECOVERY VARIANT R96A Q183R REMARK 900 RELATED ID: 1EMA RELATED DB: PDB REMARK 900 GFP MODEL USED FOR MOLECULAR REPLACEMENT DBREF 2QZ0 A 2 229 UNP P42212 GFP_AEQVI 2 229 SEQADV 2QZ0 MET A 0 UNP P42212 EXPRESSION TAG SEQADV 2QZ0 ALA A 1 UNP P42212 EXPRESSION TAG SEQADV 2QZ0 LEU A 64 UNP P42212 PHE 64 ENGINEERED MUTATION SEQADV 2QZ0 CRO A 66 UNP P42212 SER 65 CHROMOPHORE SEQADV 2QZ0 CRO A 66 UNP P42212 TYR 66 CHROMOPHORE SEQADV 2QZ0 CRO A 66 UNP P42212 GLY 67 CHROMOPHORE SEQADV 2QZ0 SER A 99 UNP P42212 PHE 99 ENGINEERED MUTATION SEQADV 2QZ0 THR A 153 UNP P42212 MET 153 ENGINEERED MUTATION SEQADV 2QZ0 ALA A 163 UNP P42212 VAL 163 ENGINEERED MUTATION SEQADV 2QZ0 GLU A 183 UNP P42212 GLN 183 ENGINEERED MUTATION SEQRES 1 A 228 MET ALA SER LYS GLY GLU GLU LEU PHE THR GLY VAL VAL SEQRES 2 A 228 PRO ILE LEU VAL GLU LEU ASP GLY ASP VAL ASN GLY HIS SEQRES 3 A 228 LYS PHE SER VAL SER GLY GLU GLY GLU GLY ASP ALA THR SEQRES 4 A 228 TYR GLY LYS LEU THR LEU LYS PHE ILE CYS THR THR GLY SEQRES 5 A 228 LYS LEU PRO VAL PRO TRP PRO THR LEU VAL THR THR LEU SEQRES 6 A 228 CRO VAL GLN CYS PHE SER ARG TYR PRO ASP HIS MET LYS SEQRES 7 A 228 GLN HIS ASP PHE PHE LYS SER ALA MET PRO GLU GLY TYR SEQRES 8 A 228 VAL GLN GLU ARG THR ILE SER PHE LYS ASP ASP GLY ASN SEQRES 9 A 228 TYR LYS THR ARG ALA GLU VAL LYS PHE GLU GLY ASP THR SEQRES 10 A 228 LEU VAL ASN ARG ILE GLU LEU LYS GLY ILE ASP PHE LYS SEQRES 11 A 228 GLU ASP GLY ASN ILE LEU GLY HIS LYS LEU GLU TYR ASN SEQRES 12 A 228 TYR ASN SER HIS ASN VAL TYR ILE THR ALA ASP LYS GLN SEQRES 13 A 228 LYS ASN GLY ILE LYS ALA ASN PHE LYS ILE ARG HIS ASN SEQRES 14 A 228 ILE GLU ASP GLY SER VAL GLN LEU ALA ASP HIS TYR GLU SEQRES 15 A 228 GLN ASN THR PRO ILE GLY ASP GLY PRO VAL LEU LEU PRO SEQRES 16 A 228 ASP ASN HIS TYR LEU SER THR GLN SER ALA LEU SER LYS SEQRES 17 A 228 ASP PRO ASN GLU LYS ARG ASP HIS MET VAL LEU LEU GLU SEQRES 18 A 228 PHE VAL THR ALA ALA GLY ILE MODRES 2QZ0 CRO A 66 GLY MODRES 2QZ0 CRO A 66 TYR MODRES 2QZ0 CRO A 66 GLY HET CRO A 66 37 HET MG A 300 1 HETNAM CRO {2-[(1R,2R)-1-AMINO-2-HYDROXYPROPYL]-4-(4- HETNAM 2 CRO HYDROXYBENZYLIDENE)-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-1- HETNAM 3 CRO YL}ACETIC ACID HETNAM MG MAGNESIUM ION HETSYN CRO PEPTIDE DERIVED CHROMOPHORE FORMUL 1 CRO C15 H17 N3 O5 FORMUL 2 MG MG 2+ FORMUL 3 HOH *399(H2 O) HELIX 1 1 LYS A 3 THR A 9 5 7 HELIX 2 2 ALA A 37 TYR A 39 5 3 HELIX 3 3 PRO A 56 VAL A 61 5 6 HELIX 4 4 VAL A 68 SER A 72 5 5 HELIX 5 5 PRO A 75 HIS A 81 5 7 HELIX 6 6 ASP A 82 ALA A 87 1 6 HELIX 7 7 LYS A 156 ASN A 159 5 4 SHEET 1 A12 VAL A 12 VAL A 22 0 SHEET 2 A12 HIS A 25 ASP A 36 -1 O PHE A 27 N GLY A 20 SHEET 3 A12 LYS A 41 CYS A 48 -1 O ILE A 47 N SER A 30 SHEET 4 A12 HIS A 217 ALA A 227 -1 O LEU A 220 N LEU A 44 SHEET 5 A12 HIS A 199 SER A 208 -1 N SER A 202 O THR A 225 SHEET 6 A12 HIS A 148 ASP A 155 -1 N HIS A 148 O THR A 203 SHEET 7 A12 GLY A 160 ASN A 170 -1 O LYS A 162 N THR A 153 SHEET 8 A12 VAL A 176 PRO A 187 -1 O HIS A 181 N PHE A 165 SHEET 9 A12 TYR A 92 PHE A 100 -1 N VAL A 93 O THR A 186 SHEET 10 A12 ASN A 105 GLU A 115 -1 O TYR A 106 N ILE A 98 SHEET 11 A12 THR A 118 ILE A 128 -1 O VAL A 120 N LYS A 113 SHEET 12 A12 VAL A 12 VAL A 22 1 N ASP A 21 O GLY A 127 LINK C LEU A 64 N1 CRO A 66 1555 1555 1.33 LINK C3 CRO A 66 N VAL A 68 1555 1555 1.26 LINK MG MG A 300 O HOH A 301 1555 1555 2.03 LINK MG MG A 300 O HOH A 302 1555 1555 2.07 LINK MG MG A 300 O HOH A 303 1555 1555 2.01 LINK MG MG A 300 O HOH A 304 1555 1555 2.09 LINK MG MG A 300 O HOH A 305 1555 1555 2.08 LINK MG MG A 300 O HOH A 306 1555 1555 2.05 CISPEP 1 MET A 88 PRO A 89 0 4.72 SITE 1 AC1 6 HOH A 301 HOH A 302 HOH A 303 HOH A 304 SITE 2 AC1 6 HOH A 305 HOH A 306 CRYST1 51.210 62.583 71.630 90.00 90.00 90.00 P 21 21 21 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 0.019527 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015979 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013961 0.00000