HEADER TRANSCRIPTION 25-JUN-12 4FQG TITLE CRYSTAL STRUCTURE OF THE TCERG1 FF4-6 TANDEM REPEAT DOMAIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRANSCRIPTION ELONGATION REGULATOR 1; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: TCERG1 FF4-6 TANDEM REPEAT DOMAIN (UNP RESIDUES 895:1081); COMPND 5 SYNONYM: TATA BOX-BINDING PROTEIN-ASSOCIATED FACTOR 2S, TRANSCRIPTION COMPND 6 FACTOR CA150; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: TCERG1, CA150, TAF2S; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)STAR; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PET15B; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PLASMID KEYWDS FF DOMAIN, TANDEM REPEAT DOMAIN, PCTD-BINDING DOMAIN, TRANSCRIPTION EXPDTA X-RAY DIFFRACTION AUTHOR J.LIU,S.FAN,C.J.LEE,A.L.GREENLEAF,P.ZHOU REVDAT 5 13-MAR-24 4FQG 1 SOURCE REVDAT 4 28-FEB-24 4FQG 1 REMARK SEQADV LINK REVDAT 3 17-JUL-19 4FQG 1 REMARK REVDAT 2 15-MAY-13 4FQG 1 JRNL REVDAT 1 27-FEB-13 4FQG 0 JRNL AUTH J.LIU,S.FAN,C.J.LEE,A.L.GREENLEAF,P.ZHOU JRNL TITL SPECIFIC INTERACTION OF THE TRANSCRIPTION ELONGATION JRNL TITL 2 REGULATOR TCERG1 WITH RNA POLYMERASE II REQUIRES JRNL TITL 3 SIMULTANEOUS PHOSPHORYLATION AT SER2, SER5, AND SER7 WITHIN JRNL TITL 4 THE CARBOXYL-TERMINAL DOMAIN REPEAT. JRNL REF J.BIOL.CHEM. V. 288 10890 2013 JRNL REFN ISSN 0021-9258 JRNL PMID 23436654 JRNL DOI 10.1074/JBC.M113.460238 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.7_650 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) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 24.80 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 96.5 REMARK 3 NUMBER OF REFLECTIONS : 26272 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.192 REMARK 3 R VALUE (WORKING SET) : 0.189 REMARK 3 FREE R VALUE : 0.241 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1314 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 24.7991 - 4.1486 0.99 2893 178 0.1779 0.2188 REMARK 3 2 4.1486 - 3.2953 0.94 2709 154 0.1728 0.2409 REMARK 3 3 3.2953 - 2.8795 1.00 2868 154 0.1988 0.2386 REMARK 3 4 2.8795 - 2.6165 0.99 2859 144 0.2087 0.2486 REMARK 3 5 2.6165 - 2.4292 0.99 2849 153 0.2057 0.2435 REMARK 3 6 2.4292 - 2.2861 0.97 2774 140 0.1862 0.2420 REMARK 3 7 2.2861 - 2.1716 0.87 2509 109 0.2025 0.2782 REMARK 3 8 2.1716 - 2.0772 0.97 2804 149 0.1785 0.2306 REMARK 3 9 2.0772 - 1.9972 0.96 2693 133 0.1957 0.2880 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 REMARK 3 SHRINKAGE RADIUS : 0.83 REMARK 3 K_SOL : 0.32 REMARK 3 B_SOL : 35.11 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.260 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 24.880 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.23530 REMARK 3 B22 (A**2) : -5.17850 REMARK 3 B33 (A**2) : 4.94320 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.32410 REMARK 3 B23 (A**2) : 0.00000 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 : 0.006 3241 REMARK 3 ANGLE : 0.917 4328 REMARK 3 CHIRALITY : 0.065 472 REMARK 3 PLANARITY : 0.003 545 REMARK 3 DIHEDRAL : 12.925 1302 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: ALL REMARK 3 ORIGIN FOR THE GROUP (A): 4.6242 -18.6353 23.2696 REMARK 3 T TENSOR REMARK 3 T11: 0.0602 T22: 0.0660 REMARK 3 T33: 0.0614 T12: -0.0006 REMARK 3 T13: -0.0041 T23: -0.0060 REMARK 3 L TENSOR REMARK 3 L11: 0.0011 L22: 0.0384 REMARK 3 L33: 0.0122 L12: 0.0014 REMARK 3 L13: -0.0134 L23: 0.0380 REMARK 3 S TENSOR REMARK 3 S11: -0.0001 S12: -0.0207 S13: 0.0081 REMARK 3 S21: 0.0224 S22: -0.0118 S23: 0.0041 REMARK 3 S31: 0.0067 S32: -0.0071 S33: 0.0037 REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4FQG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-JUL-12. REMARK 100 THE DEPOSITION ID IS D_1000073226. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 12-APR-10; 17-DEC-09; NULL; NULL REMARK 200 TEMPERATURE (KELVIN) : 100; NULL; NULL; NULL REMARK 200 PH : 9 REMARK 200 NUMBER OF CRYSTALS USED : 2 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y; Y; Y; Y REMARK 200 RADIATION SOURCE : APS; APS; APS; APS REMARK 200 BEAMLINE : 22-BM; 22-BM; 22-BM; 22-BM REMARK 200 X-RAY GENERATOR MODEL : NULL; NULL; NULL; NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M; M; NULL; NULL REMARK 200 WAVELENGTH OR RANGE (A) : 1.0001; 0.9719; 0.9794; 0.9796 REMARK 200 MONOCHROMATOR : SI(111); SI(111); NULL; NULL REMARK 200 OPTICS : NULL; NULL; NULL; NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD; CCD; NULL; NULL REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 225 MM CCD; MARMOSAIC REMARK 200 225 MM CCD; NULL; NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 26788 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 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 (%) : 98.3 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.03 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.4 REMARK 200 DATA REDUNDANCY IN SHELL : 4.10 REMARK 200 R MERGE FOR SHELL (I) : 0.13400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 11.70 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH; MAD; NULL; NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.24 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.21 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.016 M NICL2, 0.1 M TRIS-HCL, 16% REMARK 280 POLYETHYLENE GLYCOL MONOMETHYL ETHER 2000, AND 0.13 M GLYCINE, REMARK 280 PH 9, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 38.54350 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 350 REMARK 350 BIOMOLECULE: 2 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: 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 LEU A 187 REMARK 465 ASP A 188 REMARK 465 ARG A 189 REMARK 465 ARG A 190 REMARK 465 ARG B 190 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 NI A 201 NI REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 2 ND1 REMARK 620 2 HOH A 390 O 71.9 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NI B 201 NI REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER B 1 N REMARK 620 2 HIS B 2 ND1 159.1 REMARK 620 3 HIS B 2 N 72.8 86.4 REMARK 620 4 HOH B 464 O 91.1 84.3 84.1 REMARK 620 5 HOH B 561 O 103.9 96.9 176.6 96.9 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI B 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 202 DBREF 4FQG A 4 190 UNP O14776 TCRG1_HUMAN 895 1081 DBREF 4FQG B 4 190 UNP O14776 TCRG1_HUMAN 895 1081 SEQADV 4FQG SER A 1 UNP O14776 EXPRESSION TAG SEQADV 4FQG HIS A 2 UNP O14776 EXPRESSION TAG SEQADV 4FQG MET A 3 UNP O14776 EXPRESSION TAG SEQADV 4FQG SER B 1 UNP O14776 EXPRESSION TAG SEQADV 4FQG HIS B 2 UNP O14776 EXPRESSION TAG SEQADV 4FQG MET B 3 UNP O14776 EXPRESSION TAG SEQRES 1 A 190 SER HIS MET LYS ARG GLU GLU ALA ILE GLN ASN PHE LYS SEQRES 2 A 190 ALA LEU LEU SER ASP MET VAL ARG SER SER ASP VAL SER SEQRES 3 A 190 TRP SER ASP THR ARG ARG THR LEU ARG LYS ASP HIS ARG SEQRES 4 A 190 TRP GLU SER GLY SER LEU LEU GLU ARG GLU GLU LYS GLU SEQRES 5 A 190 LYS LEU PHE ASN GLU HIS ILE GLU ALA LEU THR LYS LYS SEQRES 6 A 190 LYS ARG GLU HIS PHE ARG GLN LEU LEU ASP GLU THR SER SEQRES 7 A 190 ALA ILE THR LEU THR SER THR TRP LYS GLU VAL LYS LYS SEQRES 8 A 190 ILE ILE LYS GLU ASP PRO ARG CYS ILE LYS PHE SER SER SEQRES 9 A 190 SER ASP ARG LYS LYS GLN ARG GLU PHE GLU GLU TYR ILE SEQRES 10 A 190 ARG ASP LYS TYR ILE THR ALA LYS ALA ASP PHE ARG THR SEQRES 11 A 190 LEU LEU LYS GLU THR LYS PHE ILE THR TYR ARG SER LYS SEQRES 12 A 190 LYS LEU ILE GLN GLU SER ASP GLN HIS LEU LYS ASP VAL SEQRES 13 A 190 GLU LYS ILE LEU GLN ASN ASP LYS ARG TYR LEU VAL LEU SEQRES 14 A 190 ASP CYS VAL PRO GLU GLU ARG ARG LYS LEU ILE VAL ALA SEQRES 15 A 190 TYR VAL ASP ASP LEU ASP ARG ARG SEQRES 1 B 190 SER HIS MET LYS ARG GLU GLU ALA ILE GLN ASN PHE LYS SEQRES 2 B 190 ALA LEU LEU SER ASP MET VAL ARG SER SER ASP VAL SER SEQRES 3 B 190 TRP SER ASP THR ARG ARG THR LEU ARG LYS ASP HIS ARG SEQRES 4 B 190 TRP GLU SER GLY SER LEU LEU GLU ARG GLU GLU LYS GLU SEQRES 5 B 190 LYS LEU PHE ASN GLU HIS ILE GLU ALA LEU THR LYS LYS SEQRES 6 B 190 LYS ARG GLU HIS PHE ARG GLN LEU LEU ASP GLU THR SER SEQRES 7 B 190 ALA ILE THR LEU THR SER THR TRP LYS GLU VAL LYS LYS SEQRES 8 B 190 ILE ILE LYS GLU ASP PRO ARG CYS ILE LYS PHE SER SER SEQRES 9 B 190 SER ASP ARG LYS LYS GLN ARG GLU PHE GLU GLU TYR ILE SEQRES 10 B 190 ARG ASP LYS TYR ILE THR ALA LYS ALA ASP PHE ARG THR SEQRES 11 B 190 LEU LEU LYS GLU THR LYS PHE ILE THR TYR ARG SER LYS SEQRES 12 B 190 LYS LEU ILE GLN GLU SER ASP GLN HIS LEU LYS ASP VAL SEQRES 13 B 190 GLU LYS ILE LEU GLN ASN ASP LYS ARG TYR LEU VAL LEU SEQRES 14 B 190 ASP CYS VAL PRO GLU GLU ARG ARG LYS LEU ILE VAL ALA SEQRES 15 B 190 TYR VAL ASP ASP LEU ASP ARG ARG HET NI A 201 1 HET NI B 201 1 HET CL B 202 1 HETNAM NI NICKEL (II) ION HETNAM CL CHLORIDE ION FORMUL 3 NI 2(NI 2+) FORMUL 5 CL CL 1- FORMUL 6 HOH *502(H2 O) HELIX 1 1 SER A 1 VAL A 20 1 20 HELIX 2 2 SER A 26 ARG A 35 1 10 HELIX 3 3 LYS A 36 SER A 44 5 9 HELIX 4 4 GLU A 47 GLU A 76 1 30 HELIX 5 5 THR A 85 LYS A 94 1 10 HELIX 6 6 ASP A 96 LYS A 101 1 6 HELIX 7 7 SER A 105 THR A 135 1 31 HELIX 8 8 ARG A 141 SER A 149 1 9 HELIX 9 9 ASP A 150 GLN A 161 1 12 HELIX 10 10 ASP A 163 VAL A 168 1 6 HELIX 11 11 VAL A 172 ASP A 186 1 15 HELIX 12 12 HIS B 2 VAL B 20 1 19 HELIX 13 13 SER B 26 ARG B 35 1 10 HELIX 14 14 LYS B 36 SER B 44 5 9 HELIX 15 15 GLU B 47 GLU B 76 1 30 HELIX 16 16 THR B 85 LYS B 94 1 10 HELIX 17 17 ASP B 96 LYS B 101 1 6 HELIX 18 18 SER B 105 THR B 135 1 31 HELIX 19 19 ARG B 141 SER B 149 1 9 HELIX 20 20 ASP B 150 GLN B 161 1 12 HELIX 21 21 ASP B 163 VAL B 168 1 6 HELIX 22 22 VAL B 172 ASP B 188 1 17 LINK ND1 HIS A 2 NI NI A 201 1555 1555 2.64 LINK NI NI A 201 O HOH A 390 1555 1555 2.77 LINK N SER B 1 NI NI B 201 1555 1555 2.14 LINK ND1 HIS B 2 NI NI B 201 1555 1555 2.23 LINK N HIS B 2 NI NI B 201 1555 1555 2.37 LINK NI NI B 201 O HOH B 464 1555 1555 2.53 LINK NI NI B 201 O HOH B 561 1555 1555 2.20 SITE 1 AC1 4 SER A 1 HIS A 2 HIS A 38 HOH A 390 SITE 1 AC2 5 SER B 1 HIS B 2 HIS B 38 HOH B 464 SITE 2 AC2 5 HOH B 561 SITE 1 AC3 1 ARG B 35 CRYST1 27.919 77.087 95.179 90.00 96.01 90.00 P 1 21 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 0.035818 0.000000 0.003771 0.00000 SCALE2 0.000000 0.012972 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010565 0.00000