PDB Short entry for 1YCL HEADER HYDROLASE 22-DEC-04 1YCL TITLE CRYSTAL STRUCTURE OF B. SUBTILIS LUXS IN COMPLEX WITH A CATALYTIC 2- TITLE 2 KETONE INTERMEDIATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: S-RIBOSYLHOMOCYSTEINASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: AUTOINDUCER-2 PRODUCTION PROTEIN LUXS, AI-2 SYNTHESIS COMPND 5 PROTEIN; COMPND 6 EC: 3.13.1.-; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BACILLUS SUBTILIS; SOURCE 3 ORGANISM_TAXID: 1423; SOURCE 4 GENE: LUXS; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET22B KEYWDS QUORUM SENSING, METALLOENZYME, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR R.RAJAN,J.ZHU,X.HU,D.PEI,C.E.BELL REVDAT 6 13-MAR-24 1YCL 1 COMPND SOURCE REVDAT 5 23-AUG-23 1YCL 1 REMARK REVDAT 4 20-OCT-21 1YCL 1 REMARK SEQADV LINK REVDAT 3 13-JUL-11 1YCL 1 VERSN REVDAT 2 24-FEB-09 1YCL 1 VERSN REVDAT 1 15-MAR-05 1YCL 0 JRNL AUTH R.RAJAN,J.ZHU,X.HU,D.PEI,C.E.BELL JRNL TITL CRYSTAL STRUCTURE OF S-RIBOSYLHOMOCYSTEINASE (LUXS) IN JRNL TITL 2 COMPLEX WITH A CATALYTIC 2-KETONE INTERMEDIATE. JRNL REF BIOCHEMISTRY V. 44 3745 2005 JRNL REFN ISSN 0006-2960 JRNL PMID 15751951 JRNL DOI 10.1021/BI0477384 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 16.05 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 223276.190 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.7 REMARK 3 NUMBER OF REFLECTIONS : 16736 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.225 REMARK 3 FREE R VALUE : 0.256 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.800 REMARK 3 FREE R VALUE TEST SET COUNT : 1638 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.006 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.91 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.40 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2408 REMARK 3 BIN R VALUE (WORKING SET) : 0.4210 REMARK 3 BIN FREE R VALUE : 0.4240 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.60 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 256 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.026 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1220 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 23 REMARK 3 SOLVENT ATOMS : 103 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 13.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 29.00 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 1.57000 REMARK 3 B22 (A**2) : 1.57000 REMARK 3 B33 (A**2) : -3.14000 REMARK 3 B12 (A**2) : 1.58000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.26 REMARK 3 ESD FROM SIGMAA (A) : 0.37 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.29 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.35 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.60 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.000 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.000 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.490 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.770 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.600 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.38 REMARK 3 BSOL : 46.03 REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : ION.PARAM REMARK 3 PARAMETER FILE 4 : SO4.PARAM REMARK 3 PARAMETER FILE 5 : KRI.PARAM REMARK 3 PARAMETER FILE 6 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER_REP.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : SO4.TOP REMARK 3 TOPOLOGY FILE 5 : KRI.TOP REMARK 3 TOPOLOGY FILE 6 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1YCL COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-JAN-05. REMARK 100 THE DEPOSITION ID IS D_1000031379. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-AUG-04 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU300 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : OSMIC MIRRORS REMARK 200 OPTICS : OSMIC MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : CRYSTALCLEAR (MSC/RIGAKU) REMARK 200 DATA SCALING SOFTWARE : CRYSTALCLEAR D*TREK (MSC/RIGAKU) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 22296 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 16.100 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : 11.80 REMARK 200 R MERGE (I) : 0.09900 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 12.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.87 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.3 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.53400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 4.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS 1.1 REMARK 200 STARTING MODEL: PDB ENTRY 1JVI 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): 2.50 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: HEPES, AMMONIUM SULFATE, PH 7.0, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 295K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 65 2 2 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 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+1/6 REMARK 290 6555 X-Y,X,Z+5/6 REMARK 290 7555 Y,X,-Z+2/3 REMARK 290 8555 X-Y,-Y,-Z REMARK 290 9555 -X,-X+Y,-Z+1/3 REMARK 290 10555 -Y,-X,-Z+1/6 REMARK 290 11555 -X+Y,Y,-Z+1/2 REMARK 290 12555 X,X-Y,-Z+5/6 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 99.76667 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 49.88333 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 74.82500 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 24.94167 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 124.70833 REMARK 290 SMTRY1 7 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 7 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 99.76667 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 9 0.000000 0.000000 -1.000000 49.88333 REMARK 290 SMTRY1 10 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 10 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 24.94167 REMARK 290 SMTRY1 11 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 11 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 74.82500 REMARK 290 SMTRY1 12 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 12 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 124.70833 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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A DIMER GENERATED BY REMARK 300 CRYSTALLOGRAPHIC 2-FOLD SYMMETRY ( X,X-Y+1,-Z-1/6) 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 4490 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 12570 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -42.0 KCAL/MOL 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 BIOMT1 2 0.500000 0.866025 0.000000 -31.26500 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 54.15257 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 -24.94167 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 PRO A 2 REMARK 465 SER A 3 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 78 149.58 -170.36 REMARK 500 GLN A 128 76.00 -161.87 REMARK 500 ASP A 133 89.67 -158.29 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 CO A 501 CO REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 54 NE2 REMARK 620 2 HIS A 58 NE2 101.2 REMARK 620 3 CYS A 126 SG 96.5 114.3 REMARK 620 4 KRI A 401 O2 123.4 126.8 89.8 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CO A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 601 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE KRI A 401 DBREF 1YCL A 2 157 UNP O34667 LUXS_BACSU 2 157 SEQADV 1YCL ALA A 84 UNP O34667 CYS 84 ENGINEERED MUTATION SEQRES 1 A 156 PRO SER VAL GLU SER PHE GLU LEU ASP HIS ASN ALA VAL SEQRES 2 A 156 VAL ALA PRO TYR VAL ARG HIS CYS GLY VAL HIS LYS VAL SEQRES 3 A 156 GLY THR ASP GLY VAL VAL ASN LYS PHE ASP ILE ARG PHE SEQRES 4 A 156 CYS GLN PRO ASN LYS GLN ALA MET LYS PRO ASP THR ILE SEQRES 5 A 156 HIS THR LEU GLU HIS LEU LEU ALA PHE THR ILE ARG SER SEQRES 6 A 156 HIS ALA GLU LYS TYR ASP HIS PHE ASP ILE ILE ASP ILE SEQRES 7 A 156 SER PRO MET GLY ALA GLN THR GLY TYR TYR LEU VAL VAL SEQRES 8 A 156 SER GLY GLU PRO THR SER ALA GLU ILE VAL ASP LEU LEU SEQRES 9 A 156 GLU ASP THR MET LYS GLU ALA VAL GLU ILE THR GLU ILE SEQRES 10 A 156 PRO ALA ALA ASN GLU LYS GLN CYS GLY GLN ALA LYS LEU SEQRES 11 A 156 HIS ASP LEU GLU GLY ALA LYS ARG LEU MET ARG PHE TRP SEQRES 12 A 156 LEU SER GLN ASP LYS GLU GLU LEU LEU LYS VAL PHE GLY HET CO A 501 1 HET SO4 A 601 5 HET KRI A 401 17 HETNAM CO COBALT (II) ION HETNAM SO4 SULFATE ION HETNAM KRI (S)-2-AMINO-4-[(2S,3R)-2,3,5-TRIHYDROXY-4-OXO- HETNAM 2 KRI PENTYL]MERCAPTO-BUTYRIC ACID FORMUL 2 CO CO 2+ FORMUL 3 SO4 O4 S 2- FORMUL 4 KRI C9 H17 N O6 S FORMUL 5 HOH *103(H2 O) HELIX 1 1 VAL A 4 LEU A 9 5 6 HELIX 2 2 LYS A 49 GLU A 69 1 21 HELIX 3 3 THR A 97 VAL A 113 1 17 HELIX 4 4 ASP A 133 SER A 146 1 14 HELIX 5 5 ASP A 148 LEU A 153 1 6 SHEET 1 A 4 TYR A 18 VAL A 27 0 SHEET 2 A 4 GLY A 31 ARG A 39 -1 O ASP A 37 N ARG A 20 SHEET 3 A 4 GLY A 87 GLY A 94 -1 O TYR A 88 N ILE A 38 SHEET 4 A 4 PHE A 74 PRO A 81 -1 N ASP A 78 O VAL A 91 LINK NE2 HIS A 54 CO CO A 501 1555 1555 2.06 LINK NE2 HIS A 58 CO CO A 501 1555 1555 2.07 LINK SG CYS A 126 CO CO A 501 1555 1555 2.38 LINK O2 KRI A 401 CO CO A 501 1555 1555 2.23 CISPEP 1 ALA A 16 PRO A 17 0 -0.06 SITE 1 AC1 4 HIS A 54 HIS A 58 CYS A 126 KRI A 401 SITE 1 AC2 6 HIS A 21 LYS A 49 THR A 97 SER A 98 SITE 2 AC2 6 HOH A 229 HOH A 283 SITE 1 AC3 15 SER A 6 HIS A 11 ARG A 39 HIS A 54 SITE 2 AC3 15 GLU A 57 ARG A 65 ASP A 78 ILE A 79 SITE 3 AC3 15 SER A 80 ALA A 84 CYS A 126 GLY A 127 SITE 4 AC3 15 HOH A 200 HOH A 252 CO A 501 CRYST1 62.530 62.530 149.650 90.00 90.00 120.00 P 65 2 2 12 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 0.015992 0.009233 0.000000 0.00000 SCALE2 0.000000 0.018466 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006682 0.00000