HEADER HYDROLASE 19-FEB-12 4DSU TITLE SMALL-MOLECULE LIGANDS BIND TO A DISTINCT POCKET IN RAS AND INHIBIT TITLE 2 SOS-MEDIATED NUCLEOTIDE EXCHANGE ACTIVITY COMPND MOL_ID: 1; COMPND 2 MOLECULE: GTPASE KRAS, ISOFORM 2B; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: KRAS 4B, K-RAS 2, KI-RAS, C-K-RAS, C-KI-RAS, GTPASE KRAS, N- COMPND 5 TERMINALLY PROCESSED; COMPND 6 EC: 3.6.-.-; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: KRAS, KRAS2, RASK2; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS SMALL G-PROTEIN, SIGNALING, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR A.OH,T.MAURER,L.S.GARRENTON,K.PITTS,D.J.ANDERSON,N.J.SKELTON, AUTHOR 2 B.P.FAUBER,B.PAN,S.MALEK,D.STOKOE,M.LUDLAM,K.K.BOWMAN,J.WU, AUTHOR 3 A.M.GIANNETTI,M.A.STAROVASNIK,I.MELLMAN,P.K.JACKSON,J.RULDOLPH, AUTHOR 4 G.FANG,W.WANG REVDAT 3 06-JUN-12 4DSU 1 COMPND DBREF SEQADV REMARK REVDAT 2 18-APR-12 4DSU 1 JRNL REVDAT 1 04-APR-12 4DSU 0 JRNL AUTH T.MAURER,L.S.GARRENTON,A.OH,K.PITTS,D.J.ANDERSON, JRNL AUTH 2 N.J.SKELTON,B.P.FAUBER,B.PAN,S.MALEK,D.STOKOE,M.J.LUDLAM, JRNL AUTH 3 K.K.BOWMAN,J.WU,A.M.GIANNETTI,M.A.STAROVASNIK,I.MELLMAN, JRNL AUTH 4 P.K.JACKSON,J.RUDOLPH,W.WANG,G.FANG JRNL TITL SMALL-MOLECULE LIGANDS BIND TO A DISTINCT POCKET IN RAS AND JRNL TITL 2 INHIBIT SOS-MEDIATED NUCLEOTIDE EXCHANGE ACTIVITY. JRNL REF PROC.NATL.ACAD.SCI.USA V. 109 5299 2012 JRNL REFN ISSN 0027-8424 JRNL PMID 22431598 JRNL DOI 10.1073/PNAS.1116510109 REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.6.4_486) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VICENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE- REMARK 3 : KUNSTLEVE,LI-WEI HUNG,ROBERT IMMORMINO, REMARK 3 : TOM IOERGER,AIRLIE MCCOY,ERIK MCKEE,NIGEL REMARK 3 : MORIARTY,REETAL PAI,RANDY READ,JANE REMARK 3 : RICHARDSON,DAVID RICHARDSON,TOD ROMO,JIM REMARK 3 : SACCHETTINI,NICHOLAS SAUTER,JACOB SMITH, REMARK 3 : LAURENT STORONI,TOM TERWILLIGER,PETER REMARK 3 : ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 26.02 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.980 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 NUMBER OF REFLECTIONS : 20284 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.162 REMARK 3 R VALUE (WORKING SET) : 0.160 REMARK 3 FREE R VALUE : 0.203 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.070 REMARK 3 FREE R VALUE TEST SET COUNT : 1028 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 26.0214 - 3.2474 0.99 2743 154 0.1807 0.1905 REMARK 3 2 3.2474 - 2.5783 1.00 2735 149 0.1580 0.2319 REMARK 3 3 2.5783 - 2.2526 1.00 2763 161 0.1422 0.2069 REMARK 3 4 2.2526 - 2.0467 1.00 2746 144 0.1284 0.2128 REMARK 3 5 2.0467 - 1.9001 1.00 2773 142 0.1180 0.1842 REMARK 3 6 1.9001 - 1.7881 1.00 2759 145 0.1321 0.1994 REMARK 3 7 1.7881 - 1.7000 1.00 2737 133 0.1662 0.2176 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 : 0.40 REMARK 3 B_SOL : 59.34 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.190 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 17.450 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 29.70 REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.80210 REMARK 3 B22 (A**2) : -1.80210 REMARK 3 B33 (A**2) : 3.60420 REMARK 3 B12 (A**2) : -0.00000 REMARK 3 B13 (A**2) : 0.00000 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 1447 REMARK 3 ANGLE : 0.959 1956 REMARK 3 CHIRALITY : 0.064 219 REMARK 3 PLANARITY : 0.004 251 REMARK 3 DIHEDRAL : 14.881 540 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL 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 4DSU COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 24-FEB-12. REMARK 100 THE RCSB ID CODE IS RCSB070738. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 03-SEP-10 REMARK 200 TEMPERATURE (KELVIN) : 93 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 5.0.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.00000 REMARK 200 MONOCHROMATOR : LIQUID NITROGEN COOLED DUAL REMARK 200 CRYSTAL REMARK 200 OPTICS : NULL 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 : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 20431 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 500.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 4.600 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04600 REMARK 200 FOR THE DATA SET : 26.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.76 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 4.60 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.45500 REMARK 200 FOR SHELL : 3.200 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.29 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.21 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 UL + 0.2 UL DROPS CONTAINING 40 REMARK 280 MG/ML KRAS, 0.1 M TRISCL, 25% POLYETHYLENE GLYCOL 4000, 0.2 M REMARK 280 NAOAC, 2% BENZAMIDINE-HCL, PH 8.5, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 X+2/3,Y+1/3,Z+1/3 REMARK 290 5555 -Y+2/3,X-Y+1/3,Z+1/3 REMARK 290 6555 -X+Y+2/3,-X+1/3,Z+1/3 REMARK 290 7555 X+1/3,Y+2/3,Z+2/3 REMARK 290 8555 -Y+1/3,X-Y+2/3,Z+2/3 REMARK 290 9555 -X+Y+1/3,-X+2/3,Z+2/3 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 0.00000 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 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 39.77650 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 22.96497 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 26.01833 REMARK 290 SMTRY1 5 -0.500000 -0.866025 0.000000 39.77650 REMARK 290 SMTRY2 5 0.866025 -0.500000 0.000000 22.96497 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 26.01833 REMARK 290 SMTRY1 6 -0.500000 0.866025 0.000000 39.77650 REMARK 290 SMTRY2 6 -0.866025 -0.500000 0.000000 22.96497 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 26.01833 REMARK 290 SMTRY1 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 45.92995 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 52.03667 REMARK 290 SMTRY1 8 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 8 0.866025 -0.500000 0.000000 45.92995 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 52.03667 REMARK 290 SMTRY1 9 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 -0.500000 0.000000 45.92995 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 52.03667 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 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 301 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 GLY A 0 REMARK 465 GLU A 62 REMARK 465 GLU A 63 REMARK 465 TYR A 64 REMARK 465 SER A 181 REMARK 465 LYS A 182 REMARK 465 THR A 183 REMARK 465 LYS A 184 REMARK 465 CYS A 185 REMARK 465 VAL A 186 REMARK 465 ILE A 187 REMARK 465 MET A 188 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 LYS A 175 CG CD CE NZ REMARK 470 LYS A 176 CG CD CE NZ REMARK 470 LYS A 177 CG CD CE NZ REMARK 470 LYS A 178 CG CD CE NZ REMARK 470 LYS A 179 CG CD CE NZ REMARK 470 LYS A 180 CG CD CE NZ 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 GLU A 31 -150.73 -63.69 REMARK 500 TYR A 32 152.58 174.42 REMARK 500 ASP A 33 81.50 -176.06 REMARK 500 LYS A 117 33.72 72.94 REMARK 500 ARG A 149 -0.08 82.51 REMARK 500 ASP A 173 -164.05 41.02 REMARK 500 LYS A 176 -52.71 78.73 REMARK 500 LYS A 177 -56.75 -129.46 REMARK 500 LYS A 178 172.15 71.67 REMARK 500 LYS A 179 -85.03 -156.88 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 202 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GDP A 201 O3B REMARK 620 2 SER A 17 OG 91.8 REMARK 620 3 HOH A 304 O 90.6 85.2 REMARK 620 4 HOH A 309 O 178.9 88.5 90.5 REMARK 620 5 HOH A 305 O 91.2 89.6 174.5 87.7 REMARK 620 6 HOH A 346 O 92.6 171.9 88.0 87.2 97.0 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 GDP A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BZI A 203 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4DSN RELATED DB: PDB REMARK 900 RELATED ID: 4DSO RELATED DB: PDB REMARK 900 RELATED ID: 4DST RELATED DB: PDB REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE SEQUENCE MATCHES UNIPROT ENTRY P01116, ISOFORM 2B WITH REMARK 999 IDENTIFIER P01116-2. DBREF 4DSU A 2 188 UNP P01116 RASK_HUMAN 2 188 SEQADV 4DSU GLY A 0 UNP P01116 EXPRESSION TAG SEQADV 4DSU SER A 1 UNP P01116 EXPRESSION TAG SEQADV 4DSU ASP A 12 UNP P01116 GLY 12 ENGINEERED MUTATION SEQRES 1 A 189 GLY SER THR GLU TYR LYS LEU VAL VAL VAL GLY ALA ASP SEQRES 2 A 189 GLY VAL GLY LYS SER ALA LEU THR ILE GLN LEU ILE GLN SEQRES 3 A 189 ASN HIS PHE VAL ASP GLU TYR ASP PRO THR ILE GLU ASP SEQRES 4 A 189 SER TYR ARG LYS GLN VAL VAL ILE ASP GLY GLU THR CYS SEQRES 5 A 189 LEU LEU ASP ILE LEU ASP THR ALA GLY GLN GLU GLU TYR SEQRES 6 A 189 SER ALA MET ARG ASP GLN TYR MET ARG THR GLY GLU GLY SEQRES 7 A 189 PHE LEU CYS VAL PHE ALA ILE ASN ASN THR LYS SER PHE SEQRES 8 A 189 GLU ASP ILE HIS HIS TYR ARG GLU GLN ILE LYS ARG VAL SEQRES 9 A 189 LYS ASP SER GLU ASP VAL PRO MET VAL LEU VAL GLY ASN SEQRES 10 A 189 LYS CYS ASP LEU PRO SER ARG THR VAL ASP THR LYS GLN SEQRES 11 A 189 ALA GLN ASP LEU ALA ARG SER TYR GLY ILE PRO PHE ILE SEQRES 12 A 189 GLU THR SER ALA LYS THR ARG GLN GLY VAL ASP ASP ALA SEQRES 13 A 189 PHE TYR THR LEU VAL ARG GLU ILE ARG LYS HIS LYS GLU SEQRES 14 A 189 LYS MET SER LYS ASP GLY LYS LYS LYS LYS LYS LYS SER SEQRES 15 A 189 LYS THR LYS CYS VAL ILE MET HET GDP A 201 28 HET MG A 202 1 HET BZI A 203 9 HETNAM GDP GUANOSINE-5'-DIPHOSPHATE HETNAM MG MAGNESIUM ION HETNAM BZI BENZIMIDAZOLE FORMUL 2 GDP C10 H15 N5 O11 P2 FORMUL 3 MG MG 2+ FORMUL 4 BZI C7 H6 N2 FORMUL 5 HOH *63(H2 O) HELIX 1 1 GLY A 15 ASN A 26 1 12 HELIX 2 2 MET A 67 GLY A 75 1 9 HELIX 3 3 ASN A 86 LYS A 104 1 19 HELIX 4 4 ASP A 126 GLY A 138 1 13 HELIX 5 5 GLY A 151 ASP A 173 1 23 SHEET 1 A 6 ASP A 38 ILE A 46 0 SHEET 2 A 6 GLU A 49 ASP A 57 -1 O CYS A 51 N VAL A 44 SHEET 3 A 6 THR A 2 VAL A 9 1 N VAL A 8 O LEU A 56 SHEET 4 A 6 GLY A 77 ALA A 83 1 O VAL A 81 N VAL A 9 SHEET 5 A 6 MET A 111 ASN A 116 1 O ASN A 116 N PHE A 82 SHEET 6 A 6 PHE A 141 GLU A 143 1 O ILE A 142 N LEU A 113 LINK O3B GDP A 201 MG MG A 202 1555 1555 2.13 LINK OG SER A 17 MG MG A 202 1555 1555 2.23 LINK MG MG A 202 O HOH A 304 1555 1555 2.28 LINK MG MG A 202 O HOH A 309 1555 1555 2.28 LINK MG MG A 202 O HOH A 305 1555 1555 2.29 LINK MG MG A 202 O HOH A 346 1555 1555 2.32 SITE 1 AC1 24 GLY A 13 VAL A 14 GLY A 15 LYS A 16 SITE 2 AC1 24 SER A 17 ALA A 18 PHE A 28 VAL A 29 SITE 3 AC1 24 ASP A 30 GLU A 31 ASN A 116 LYS A 117 SITE 4 AC1 24 ASP A 119 LEU A 120 SER A 145 ALA A 146 SITE 5 AC1 24 LYS A 147 MG A 202 HOH A 305 HOH A 308 SITE 6 AC1 24 HOH A 323 HOH A 327 HOH A 332 HOH A 346 SITE 1 AC2 6 SER A 17 GDP A 201 HOH A 304 HOH A 305 SITE 2 AC2 6 HOH A 309 HOH A 346 SITE 1 AC3 5 LYS A 5 LEU A 6 VAL A 7 ASP A 54 SITE 2 AC3 5 HOH A 361 CRYST1 79.553 79.553 78.055 90.00 90.00 120.00 H 3 9 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 0.012570 0.007257 0.000000 0.00000 SCALE2 0.000000 0.014515 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012811 0.00000 MASTER 322 0 3 5 6 0 10 6 0 0 0 15 END