HEADER SIGNALING PROTEIN 19-MAR-19 6OB8 TITLE CRYSTAL STRUCTURE OF A DUAL SENSOR HISTIDINE KINASE IN GREEN LIGHT TITLE 2 ILLUMINATED STATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: DUAL SENSOR HISTIDINE KINASE; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: [LEPTOLYNGBYA] SP. JSC-1; SOURCE 3 ORGANISM_TAXID: 1487953; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS CYANOBACTERIOCHROME, PHOTORECEPTORS, TANDEM SENSORS, SIGNALING KEYWDS 2 PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR S.HEEWHAN,R.ZHONG,Z.XIAOLI,B.SEPALIKA,Y.XIAOJING REVDAT 5 16-OCT-24 6OB8 1 REMARK REVDAT 4 11-OCT-23 6OB8 1 LINK REVDAT 3 18-DEC-19 6OB8 1 REMARK REVDAT 2 13-NOV-19 6OB8 1 JRNL REVDAT 1 18-SEP-19 6OB8 0 JRNL AUTH H.SHIN,Z.REN,X.ZENG,S.BANDARA,X.YANG JRNL TITL STRUCTURAL BASIS OF MOLECULAR LOGIC OR IN A DUAL-SENSOR JRNL TITL 2 HISTIDINE KINASE. JRNL REF PROC.NATL.ACAD.SCI.USA V. 116 19973 2019 JRNL REFN ESSN 1091-6490 JRNL PMID 31527275 JRNL DOI 10.1073/PNAS.1910855116 REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.9_1692 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) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 41.50 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 NUMBER OF REFLECTIONS : 30770 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.211 REMARK 3 R VALUE (WORKING SET) : 0.208 REMARK 3 FREE R VALUE : 0.251 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.330 REMARK 3 FREE R VALUE TEST SET COUNT : 1641 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE 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) : 0.270 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 26.140 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 44.86 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 68.90 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 : 0.017 10330 REMARK 3 ANGLE : 1.150 14062 REMARK 3 CHIRALITY : 0.037 1586 REMARK 3 PLANARITY : 0.005 1844 REMARK 3 DIHEDRAL : 15.641 3848 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: ( CHAIN B AND RESID 401:401 ) REMARK 3 ORIGIN FOR THE GROUP (A): -28.837 -46.109 53.547 REMARK 3 T TENSOR REMARK 3 T11: 2.2194 T22: 3.0088 REMARK 3 T33: 0.2095 T12: -0.7856 REMARK 3 T13: -0.4589 T23: 0.6613 REMARK 3 L TENSOR REMARK 3 L11: 0.3541 L22: 2.2378 REMARK 3 L33: 4.6646 L12: -0.5613 REMARK 3 L13: -0.4046 L23: -0.9828 REMARK 3 S TENSOR REMARK 3 S11: -0.1631 S12: -0.8056 S13: -0.0981 REMARK 3 S21: 0.5840 S22: 0.1703 S23: 0.1804 REMARK 3 S31: 0.9080 S32: 0.1518 S33: 0.0353 REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : 1 REMARK 3 NCS GROUP : 1 REMARK 3 NCS OPERATOR : 1 REMARK 3 REFERENCE SELECTION: CHAIN A REMARK 3 SELECTION : CHAIN B REMARK 3 ATOM PAIRS NUMBER : 2674 REMARK 3 RMSD : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 6OB8 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-MAR-19. REMARK 100 THE DEPOSITION ID IS D_1000240319. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-DEC-16 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 : APS REMARK 200 BEAMLINE : 21-ID-D REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.987 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER X 9M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 37588 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.150 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 9.300 REMARK 200 R MERGE (I) : 0.10500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 8.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.15 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.19 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 7.60 REMARK 200 R MERGE FOR SHELL (I) : 1.27000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 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: PHENIX REMARK 200 STARTING MODEL: 3W2Z, 4ZYL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.29 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.38 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 3350, MAGNESIUM CHLORIDE, HEPES. REMARK 280 CRYSTALS GROWN IN DARK. ILLUMINATED USING GREEN LIGHT AT VARIOUS REMARK 280 TEMPERATURE (100-293K), VAPOR DIFFUSION, HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 126.90200 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 36.02950 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 36.02950 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 190.35300 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 36.02950 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 36.02950 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 63.45100 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 36.02950 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 36.02950 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 190.35300 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 36.02950 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 36.02950 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 63.45100 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 126.90200 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 6520 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 28970 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -89.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 MET A 1 REMARK 465 LEU A 309 REMARK 465 GLU A 310 REMARK 465 HIS A 311 REMARK 465 HIS A 312 REMARK 465 HIS A 313 REMARK 465 HIS A 314 REMARK 465 HIS A 315 REMARK 465 HIS A 316 REMARK 465 MET B 1 REMARK 465 PRO B 2 REMARK 465 PRO B 77 REMARK 465 PRO B 78 REMARK 465 HIS B 312 REMARK 465 HIS B 313 REMARK 465 HIS B 314 REMARK 465 HIS B 315 REMARK 465 HIS B 316 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 O HOH A 510 O HOH A 546 2.10 REMARK 500 OE2 GLU A 141 O HOH A 501 2.12 REMARK 500 OD2 ASP A 28 O HOH A 502 2.17 REMARK 500 O HOH A 523 O HOH B 540 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 PRO A 81 21.97 -79.80 REMARK 500 ASP A 187 27.96 -77.39 REMARK 500 SER A 189 -104.23 -94.25 REMARK 500 VAL A 209 169.41 53.09 REMARK 500 ASP A 211 -175.05 63.21 REMARK 500 ARG A 218 29.30 -148.71 REMARK 500 ALA A 262 -110.65 57.93 REMARK 500 ALA A 262 -119.01 57.24 REMARK 500 ASP B 206 -16.24 67.44 REMARK 500 GLN B 212 33.79 -142.35 REMARK 500 ARG B 218 -8.02 76.58 REMARK 500 ALA B 262 -108.60 55.05 REMARK 500 ALA B 262 -117.54 58.44 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 402 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 13 OD1 REMARK 620 2 ASP A 13 OD1 28.7 REMARK 620 3 ASP A 13 OD2 28.8 44.5 REMARK 620 4 ASP A 59 OD2 96.5 125.2 87.4 REMARK 620 5 ASP A 59 OD2 93.5 122.0 83.4 4.3 REMARK 620 6 HOH A 510 O 81.2 86.5 52.6 78.6 75.0 REMARK 620 7 HOH A 540 O 147.4 141.1 118.7 77.8 78.7 66.2 REMARK 620 8 HOH A 546 O 92.5 69.3 82.2 140.3 137.7 64.7 74.0 REMARK 620 9 HOH A 550 O 117.4 101.0 144.5 115.8 120.0 152.9 93.4 93.5 REMARK 620 N 1 2 3 4 5 6 7 8 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 403 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 560 O REMARK 620 2 HOH A 568 O 86.3 REMARK 620 3 HOH A 575 O 78.1 154.0 REMARK 620 4 HOH B 507 O 72.7 93.0 62.6 REMARK 620 5 HOH B 552 O 146.2 107.3 77.0 75.7 REMARK 620 6 HOH B 553 O 122.5 104.1 101.8 157.3 85.0 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 403 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 507 O REMARK 620 2 HOH A 523 O 94.3 REMARK 620 3 HOH A 562 O 76.9 79.4 REMARK 620 4 HOH B 503 O 89.6 158.2 80.6 REMARK 620 5 HOH B 540 O 124.4 67.1 140.4 127.0 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 402 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP B 13 OD1 REMARK 620 2 ASP B 13 OD1 31.1 REMARK 620 3 ASP B 59 OD2 78.0 84.4 REMARK 620 4 ASP B 59 OD2 88.2 80.4 26.6 REMARK 620 5 ARG B 61 O 80.9 111.5 69.8 95.5 REMARK 620 6 ARG B 61 O 79.3 109.5 65.8 91.7 4.1 REMARK 620 7 HOH B 506 O 98.1 67.1 94.3 68.4 163.9 160.1 REMARK 620 8 HOH B 526 O 86.9 96.7 148.8 174.4 81.0 84.7 115.0 REMARK 620 9 HOH B 530 O 166.0 157.8 91.3 86.0 87.0 88.2 91.6 98.2 REMARK 620 N 1 2 3 4 5 6 7 8 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CYC A 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 402 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 403 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG B 402 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG B 403 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for Di-peptide CYC B 401 and CYS B REMARK 800 241 DBREF 6OB8 A 1 316 PDB 6OB8 6OB8 1 316 DBREF 6OB8 B 1 316 PDB 6OB8 6OB8 1 316 SEQRES 1 A 316 MET PRO GLN THR SER ARG VAL LEU LEU ILE ILE ASP ASP SEQRES 2 A 316 SER PRO GLU ASP ARG GLU LEU TYR ARG ARG TYR LEU LEU SEQRES 3 A 316 ARG ASP ARG ASP HIS SER TYR THR VAL LEU GLU ALA GLY SEQRES 4 A 316 LEU GLY ARG ARG GLY LEU GLU LEU TRP GLN GLN HIS HIS SEQRES 5 A 316 PRO ASP ALA VAL LEU LEU ASP TYR ARG LEU PRO ASP LEU SEQRES 6 A 316 ASP GLY LEU GLU PHE LEU ALA LYS LEU GLN PRO PRO PRO SEQRES 7 A 316 GLN GLN PRO TYR LEU PRO VAL ILE MET ILE THR GLY GLN SEQRES 8 A 316 GLY ASN GLU ALA ILE ALA VAL GLN ALA MET LYS ALA GLY SEQRES 9 A 316 ALA GLN ASP TYR LEU VAL LYS GLU GLN ILE THR PRO GLU SEQRES 10 A 316 GLU LEU HIS LEU ALA VAL ASN GLY ALA ILE GLU THR VAL SEQRES 11 A 316 HIS LEU ARG THR GLN LEU HIS GLN ARG ILE GLU ARG GLU SEQRES 12 A 316 ARG VAL VAL SER GLN ILE THR GLN LYS ILE HIS GLN THR SEQRES 13 A 316 LEU ASP LEU GLU GLU ILE LEU GLN THR THR VAL THR GLU SEQRES 14 A 316 VAL ARG GLN PHE LEU GLN ALA ASP ARG VAL PHE VAL TYR SEQRES 15 A 316 ARG PHE GLN PRO ASP PHE SER GLY ILE VAL VAL LEU GLU SEQRES 16 A 316 SER VAL GLY ASP ASN CYS VAL PRO VAL ILE ASP ALA GLN SEQRES 17 A 316 VAL GLU ASP GLN TYR PHE VAL GLU THR ARG GLY GLU ASP SEQRES 18 A 316 TYR ARG GLN GLY ARG ILE GLN ALA VAL ALA ASP ILE TYR SEQRES 19 A 316 THR ALA GLY LEU THR GLU CYS HIS VAL ASN LEU LEU ALA SEQRES 20 A 316 GLN PHE HIS ILE ARG ALA ASN LEU VAL VAL PRO ILE LEU SEQRES 21 A 316 HIS ALA ASP ALA LEU TRP GLY LEU LEU VAL VAL ASN GLN SEQRES 22 A 316 CYS SER ALA PRO ARG GLN TRP GLN PRO LEU GLU ILE ASP SEQRES 23 A 316 LEU LEU LYS GLU LEU ALA THR GLN LEU GLY ILE ALA LEU SEQRES 24 A 316 GLN GLN ALA GLU LEU TYR GLN GLN ALA LEU GLU HIS HIS SEQRES 25 A 316 HIS HIS HIS HIS SEQRES 1 B 316 MET PRO GLN THR SER ARG VAL LEU LEU ILE ILE ASP ASP SEQRES 2 B 316 SER PRO GLU ASP ARG GLU LEU TYR ARG ARG TYR LEU LEU SEQRES 3 B 316 ARG ASP ARG ASP HIS SER TYR THR VAL LEU GLU ALA GLY SEQRES 4 B 316 LEU GLY ARG ARG GLY LEU GLU LEU TRP GLN GLN HIS HIS SEQRES 5 B 316 PRO ASP ALA VAL LEU LEU ASP TYR ARG LEU PRO ASP LEU SEQRES 6 B 316 ASP GLY LEU GLU PHE LEU ALA LYS LEU GLN PRO PRO PRO SEQRES 7 B 316 GLN GLN PRO TYR LEU PRO VAL ILE MET ILE THR GLY GLN SEQRES 8 B 316 GLY ASN GLU ALA ILE ALA VAL GLN ALA MET LYS ALA GLY SEQRES 9 B 316 ALA GLN ASP TYR LEU VAL LYS GLU GLN ILE THR PRO GLU SEQRES 10 B 316 GLU LEU HIS LEU ALA VAL ASN GLY ALA ILE GLU THR VAL SEQRES 11 B 316 HIS LEU ARG THR GLN LEU HIS GLN ARG ILE GLU ARG GLU SEQRES 12 B 316 ARG VAL VAL SER GLN ILE THR GLN LYS ILE HIS GLN THR SEQRES 13 B 316 LEU ASP LEU GLU GLU ILE LEU GLN THR THR VAL THR GLU SEQRES 14 B 316 VAL ARG GLN PHE LEU GLN ALA ASP ARG VAL PHE VAL TYR SEQRES 15 B 316 ARG PHE GLN PRO ASP PHE SER GLY ILE VAL VAL LEU GLU SEQRES 16 B 316 SER VAL GLY ASP ASN CYS VAL PRO VAL ILE ASP ALA GLN SEQRES 17 B 316 VAL GLU ASP GLN TYR PHE VAL GLU THR ARG GLY GLU ASP SEQRES 18 B 316 TYR ARG GLN GLY ARG ILE GLN ALA VAL ALA ASP ILE TYR SEQRES 19 B 316 THR ALA GLY LEU THR GLU CYS HIS VAL ASN LEU LEU ALA SEQRES 20 B 316 GLN PHE HIS ILE ARG ALA ASN LEU VAL VAL PRO ILE LEU SEQRES 21 B 316 HIS ALA ASP ALA LEU TRP GLY LEU LEU VAL VAL ASN GLN SEQRES 22 B 316 CYS SER ALA PRO ARG GLN TRP GLN PRO LEU GLU ILE ASP SEQRES 23 B 316 LEU LEU LYS GLU LEU ALA THR GLN LEU GLY ILE ALA LEU SEQRES 24 B 316 GLN GLN ALA GLU LEU TYR GLN GLN ALA LEU GLU HIS HIS SEQRES 25 B 316 HIS HIS HIS HIS HET CYC A 401 86 HET MG A 402 1 HET MG A 403 1 HET CYC B 401 86 HET MG B 402 1 HET MG B 403 1 HETNAM CYC PHYCOCYANOBILIN HETNAM MG MAGNESIUM ION FORMUL 3 CYC 2(C33 H40 N4 O6) FORMUL 4 MG 4(MG 2+) FORMUL 9 HOH *138(H2 O) HELIX 1 AA1 SER A 14 ARG A 27 1 14 HELIX 2 AA2 LEU A 40 HIS A 52 1 13 HELIX 3 AA3 ASP A 66 LEU A 74 1 9 HELIX 4 AA4 ASN A 93 ALA A 103 1 11 HELIX 5 AA5 GLU A 112 ILE A 114 5 3 HELIX 6 AA6 THR A 115 GLN A 155 1 41 HELIX 7 AA7 ASP A 158 GLN A 175 1 18 HELIX 8 AA8 PHE A 214 GLY A 219 1 6 HELIX 9 AA9 GLY A 219 GLN A 224 1 6 HELIX 10 AB1 ASP A 232 ALA A 236 5 5 HELIX 11 AB2 THR A 239 PHE A 249 1 11 HELIX 12 AB3 GLN A 281 GLN A 307 1 27 HELIX 13 AB4 SER B 14 ARG B 27 1 14 HELIX 14 AB5 LEU B 40 HIS B 52 1 13 HELIX 15 AB6 ASP B 66 LEU B 74 1 9 HELIX 16 AB7 ASN B 93 LYS B 102 1 10 HELIX 17 AB8 GLU B 112 ILE B 114 5 3 HELIX 18 AB9 THR B 115 THR B 156 1 42 HELIX 19 AC1 ASP B 158 GLN B 175 1 18 HELIX 20 AC2 TYR B 213 ARG B 218 1 6 HELIX 21 AC3 GLY B 219 GLN B 224 1 6 HELIX 22 AC4 THR B 239 PHE B 249 1 11 HELIX 23 AC5 GLN B 281 HIS B 311 1 31 SHEET 1 AA1 5 TYR A 33 ALA A 38 0 SHEET 2 AA1 5 ARG A 6 ILE A 11 1 N LEU A 8 O LEU A 36 SHEET 3 AA1 5 ALA A 55 ASP A 59 1 O LEU A 57 N ILE A 11 SHEET 4 AA1 5 VAL A 85 THR A 89 1 O ILE A 86 N LEU A 58 SHEET 5 AA1 5 ASP A 107 VAL A 110 1 O LEU A 109 N THR A 89 SHEET 1 AA2 5 GLY A 190 VAL A 197 0 SHEET 2 AA2 5 ARG A 178 PHE A 184 -1 N VAL A 179 O SER A 196 SHEET 3 AA2 5 ALA A 264 GLN A 273 -1 O ASN A 272 N ARG A 178 SHEET 4 AA2 5 ALA A 253 HIS A 261 -1 N VAL A 257 O LEU A 269 SHEET 5 AA2 5 GLN A 228 VAL A 230 -1 N VAL A 230 O ASN A 254 SHEET 1 AA3 5 HIS B 31 ALA B 38 0 SHEET 2 AA3 5 THR B 4 ILE B 11 1 N ARG B 6 O SER B 32 SHEET 3 AA3 5 ALA B 55 ASP B 59 1 O LEU B 57 N ILE B 11 SHEET 4 AA3 5 VAL B 85 THR B 89 1 O ILE B 86 N VAL B 56 SHEET 5 AA3 5 ASP B 107 VAL B 110 1 O LEU B 109 N THR B 89 SHEET 1 AA4 5 GLY B 190 VAL B 197 0 SHEET 2 AA4 5 ARG B 178 PHE B 184 -1 N VAL B 179 O SER B 196 SHEET 3 AA4 5 ALA B 264 GLN B 273 -1 O ASN B 272 N ARG B 178 SHEET 4 AA4 5 ALA B 253 HIS B 261 -1 N VAL B 257 O LEU B 269 SHEET 5 AA4 5 GLN B 228 VAL B 230 -1 N VAL B 230 O ASN B 254 SSBOND 1 CYS A 201 CYS A 274 1555 1555 1.98 LINK SG ACYS A 241 CACACYC A 401 1555 1555 1.67 LINK SG BCYS A 241 CACBCYC A 401 1555 1555 1.68 LINK SG ACYS B 241 CACACYC B 401 1555 1555 1.67 LINK SG BCYS B 241 CACBCYC B 401 1555 1555 1.67 LINK OD1AASP A 13 MG MG A 402 1555 1555 1.99 LINK OD1BASP A 13 MG MG A 402 1555 1555 2.80 LINK OD2BASP A 13 MG MG A 402 1555 1555 2.99 LINK OD2AASP A 59 MG MG A 402 1555 1555 2.05 LINK OD2BASP A 59 MG MG A 402 1555 1555 2.02 LINK MG MG A 402 O HOH A 510 1555 1555 1.91 LINK MG MG A 402 O HOH A 540 1555 1565 2.58 LINK MG MG A 402 O HOH A 546 1555 1555 2.01 LINK MG MG A 402 O HOH A 550 1555 1555 1.87 LINK MG MG A 403 O HOH A 560 1555 1555 2.65 LINK MG MG A 403 O HOH A 568 1555 1555 2.31 LINK MG MG A 403 O HOH A 575 1555 1555 2.36 LINK MG MG A 403 O HOH B 507 1555 1555 2.51 LINK MG MG A 403 O HOH B 552 1555 1555 2.55 LINK MG MG A 403 O HOH B 553 1555 1555 1.98 LINK O HOH A 507 MG MG B 403 1555 1555 2.40 LINK O HOH A 523 MG MG B 403 1555 1555 1.98 LINK O HOH A 562 MG MG B 403 1555 1555 1.98 LINK OD1AASP B 13 MG MG B 402 1555 1555 2.27 LINK OD1BASP B 13 MG MG B 402 1555 1555 2.34 LINK OD2AASP B 59 MG MG B 402 1555 1555 2.01 LINK OD2BASP B 59 MG MG B 402 1555 1555 2.17 LINK O AARG B 61 MG MG B 402 1555 1555 2.82 LINK O BARG B 61 MG MG B 402 1555 1555 2.17 LINK MG MG B 402 O HOH B 506 1555 1555 2.05 LINK MG MG B 402 O HOH B 526 1555 1555 1.92 LINK MG MG B 402 O HOH B 530 1555 1555 2.04 LINK MG MG B 403 O HOH B 503 1555 1555 2.16 LINK MG MG B 403 O HOH B 540 1555 1555 1.96 SITE 1 AC1 19 PHE A 180 TYR A 182 VAL A 192 VAL A 204 SITE 2 AC1 19 GLN A 208 VAL A 209 ASP A 211 GLN A 212 SITE 3 AC1 19 PHE A 214 ARG A 218 TYR A 222 GLN A 228 SITE 4 AC1 19 THR A 239 CYS A 241 HIS A 242 LEU A 245 SITE 5 AC1 19 PHE A 249 ASN A 254 LEU A 268 SITE 1 AC2 7 ASP A 12 ASP A 13 ASP A 59 HOH A 510 SITE 2 AC2 7 HOH A 540 HOH A 546 HOH A 550 SITE 1 AC3 6 HOH A 560 HOH A 568 HOH A 575 HOH B 507 SITE 2 AC3 6 HOH B 552 HOH B 553 SITE 1 AC4 6 ASP B 13 ASP B 59 ARG B 61 HOH B 506 SITE 2 AC4 6 HOH B 526 HOH B 530 SITE 1 AC5 6 HOH A 507 HOH A 523 HOH A 562 ASP B 107 SITE 2 AC5 6 HOH B 503 HOH B 540 SITE 1 AC6 23 ARG A 23 ARG A 27 PHE B 180 VAL B 204 SITE 2 AC6 23 GLN B 208 VAL B 209 GLU B 210 ASP B 211 SITE 3 AC6 23 GLN B 212 TYR B 213 PHE B 214 TYR B 222 SITE 4 AC6 23 ARG B 226 GLN B 228 THR B 239 GLU B 240 SITE 5 AC6 23 HIS B 242 VAL B 243 ASN B 244 LEU B 245 SITE 6 AC6 23 PHE B 249 ASN B 254 HOH B 516 CRYST1 72.059 72.059 253.804 90.00 90.00 90.00 P 43 21 2 16 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 0.013878 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013878 0.000000 0.00000 SCALE3 0.000000 0.000000 0.003940 0.00000