PDB Short entry for 1SVS HEADER HYDROLASE, SIGNALING PROTEIN 29-MAR-04 1SVS TITLE STRUCTURE OF THE K180P MUTANT OF GI ALPHA SUBUNIT BOUND TO GPPNHP. COMPND MOL_ID: 1; COMPND 2 MOLECULE: GUANINE NUCLEOTIDE-BINDING PROTEIN G(I), ALPHA-1 SUBUNIT; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ADENYLATE CYCLASE-INHIBITING G ALPHA PROTEIN; COMPND 5 EC: 3.6.1.46; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS; SOURCE 3 ORGANISM_COMMON: NORWAY RAT; SOURCE 4 ORGANISM_TAXID: 10116; SOURCE 5 GENE: GNAI1, GNAI-1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: JM109(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PQE60 KEYWDS GI ALPHA SUBUNIT, K180P MUTATION, GPPNHP (GNP) BOUND, HYDROLASE, KEYWDS 2 SIGNALING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR C.J.THOMAS,X.DU,P.LI,Y.WANG,E.M.ROSS,S.R.SPRANG REVDAT 4 14-FEB-24 1SVS 1 REMARK REVDAT 3 27-OCT-21 1SVS 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 1SVS 1 VERSN REVDAT 1 01-JUN-04 1SVS 0 JRNL AUTH C.J.THOMAS,X.DU,P.LI,Y.WANG,E.M.ROSS,S.R.SPRANG JRNL TITL UNCOUPLING CONFORMATIONAL CHANGE FROM GTP HYDROLYSIS IN A JRNL TITL 2 HETEROTRIMERIC G PROTEIN {ALPHA}-SUBUNIT. JRNL REF PROC.NATL.ACAD.SCI.USA V. 101 7560 2004 JRNL REFN ISSN 0027-8424 JRNL PMID 15128951 JRNL DOI 10.1073/PNAS.0304091101 REMARK 2 REMARK 2 RESOLUTION. 1.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 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) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.7 REMARK 3 NUMBER OF REFLECTIONS : 61531 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.200 REMARK 3 FREE R VALUE : 0.209 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 3110 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2541 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 33 REMARK 3 SOLVENT ATOMS : 241 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) : 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.284 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1SVS COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 05-APR-04. REMARK 100 THE DEPOSITION ID IS D_1000022034. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-MAR-03 REMARK 200 TEMPERATURE (KELVIN) : 93 REMARK 200 PH : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 19-BM REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9450 REMARK 200 MONOCHROMATOR : SI 111 REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : CUSTOM-MADE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 61531 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.7 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.56 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.7 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> 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: CNS REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.16 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.37 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHITE, SODIUM ACETATE, PH REMARK 280 6.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293.16K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 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 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-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 70.09400 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 35.04700 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 35.04700 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 70.09400 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 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 GLY A 2 REMARK 465 CYS A 3 REMARK 465 THR A 4 REMARK 465 LEU A 5 REMARK 465 SER A 6 REMARK 465 ALA A 7 REMARK 465 GLU A 8 REMARK 465 ASP A 9 REMARK 465 LYS A 10 REMARK 465 ALA A 11 REMARK 465 ALA A 12 REMARK 465 VAL A 13 REMARK 465 GLU A 14 REMARK 465 ARG A 15 REMARK 465 SER A 16 REMARK 465 LYS A 17 REMARK 465 MET A 18 REMARK 465 ILE A 19 REMARK 465 ASP A 20 REMARK 465 ARG A 21 REMARK 465 ASN A 22 REMARK 465 LEU A 23 REMARK 465 ARG A 24 REMARK 465 GLU A 25 REMARK 465 ASP A 26 REMARK 465 GLY A 27 REMARK 465 GLU A 28 REMARK 465 LYS A 29 REMARK 465 ALA A 30 REMARK 465 ALA A 31 REMARK 465 LEU A 348 REMARK 465 LYS A 349 REMARK 465 ASP A 350 REMARK 465 CYS A 351 REMARK 465 GLY A 352 REMARK 465 LEU A 353 REMARK 465 PHE A 354 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 ARG A 32 CG CD NE CZ NH1 NH2 REMARK 480 ARG A 86 CG CD NE CZ NH1 NH2 REMARK 480 LYS A 92 CD CE NZ REMARK 480 GLU A 115 CD OE1 OE2 REMARK 480 GLN A 164 CD OE1 NE2 REMARK 480 GLU A 238 CD OE1 OE2 REMARK 480 LYS A 248 CD CE NZ REMARK 480 LYS A 345 CE NZ REMARK 480 ASN A 347 C O 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 LYS A 92 60.87 64.60 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 356 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER A 47 OG REMARK 620 2 THR A 181 OG1 81.3 REMARK 620 3 GNP A 355 O2G 170.7 89.4 REMARK 620 4 GNP A 355 O1B 93.4 173.3 95.9 REMARK 620 5 HOH A 401 O 88.2 90.5 92.1 85.2 REMARK 620 6 HOH A 581 O 89.4 90.0 90.4 94.0 177.4 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 356 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GNP A 355 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1SVK RELATED DB: PDB REMARK 900 STRUCTURE OF THE K180P MUTANT OF GI ALPHA SUBUNIT BOUND TO ALF4 AND REMARK 900 GDP DBREF 1SVS A 2 354 UNP P10824 GNAI1_RAT 1 353 SEQADV 1SVS PRO A 180 UNP P10824 LYS 179 ENGINEERED MUTATION SEQRES 1 A 353 GLY CYS THR LEU SER ALA GLU ASP LYS ALA ALA VAL GLU SEQRES 2 A 353 ARG SER LYS MET ILE ASP ARG ASN LEU ARG GLU ASP GLY SEQRES 3 A 353 GLU LYS ALA ALA ARG GLU VAL LYS LEU LEU LEU LEU GLY SEQRES 4 A 353 ALA GLY GLU SER GLY LYS SER THR ILE VAL LYS GLN MET SEQRES 5 A 353 LYS ILE ILE HIS GLU ALA GLY TYR SER GLU GLU GLU CYS SEQRES 6 A 353 LYS GLN TYR LYS ALA VAL VAL TYR SER ASN THR ILE GLN SEQRES 7 A 353 SER ILE ILE ALA ILE ILE ARG ALA MET GLY ARG LEU LYS SEQRES 8 A 353 ILE ASP PHE GLY ASP ALA ALA ARG ALA ASP ASP ALA ARG SEQRES 9 A 353 GLN LEU PHE VAL LEU ALA GLY ALA ALA GLU GLU GLY PHE SEQRES 10 A 353 MET THR ALA GLU LEU ALA GLY VAL ILE LYS ARG LEU TRP SEQRES 11 A 353 LYS ASP SER GLY VAL GLN ALA CYS PHE ASN ARG SER ARG SEQRES 12 A 353 GLU TYR GLN LEU ASN ASP SER ALA ALA TYR TYR LEU ASN SEQRES 13 A 353 ASP LEU ASP ARG ILE ALA GLN PRO ASN TYR ILE PRO THR SEQRES 14 A 353 GLN GLN ASP VAL LEU ARG THR ARG VAL PRO THR THR GLY SEQRES 15 A 353 ILE VAL GLU THR HIS PHE THR PHE LYS ASP LEU HIS PHE SEQRES 16 A 353 LYS MET PHE ASP VAL GLY GLY GLN ARG SER GLU ARG LYS SEQRES 17 A 353 LYS TRP ILE HIS CYS PHE GLU GLY VAL THR ALA ILE ILE SEQRES 18 A 353 PHE CYS VAL ALA LEU SER ASP TYR ASP LEU VAL LEU ALA SEQRES 19 A 353 GLU ASP GLU GLU MET ASN ARG MET HIS GLU SER MET LYS SEQRES 20 A 353 LEU PHE ASP SER ILE CYS ASN ASN LYS TRP PHE THR ASP SEQRES 21 A 353 THR SER ILE ILE LEU PHE LEU ASN LYS LYS ASP LEU PHE SEQRES 22 A 353 GLU GLU LYS ILE LYS LYS SER PRO LEU THR ILE CYS TYR SEQRES 23 A 353 PRO GLU TYR ALA GLY SER ASN THR TYR GLU GLU ALA ALA SEQRES 24 A 353 ALA TYR ILE GLN CYS GLN PHE GLU ASP LEU ASN LYS ARG SEQRES 25 A 353 LYS ASP THR LYS GLU ILE TYR THR HIS PHE THR CYS ALA SEQRES 26 A 353 THR ASP THR LYS ASN VAL GLN PHE VAL PHE ASP ALA VAL SEQRES 27 A 353 THR ASP VAL ILE ILE LYS ASN ASN LEU LYS ASP CYS GLY SEQRES 28 A 353 LEU PHE HET MG A 356 1 HET GNP A 355 32 HETNAM MG MAGNESIUM ION HETNAM GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER FORMUL 2 MG MG 2+ FORMUL 3 GNP C10 H17 N6 O13 P3 FORMUL 4 HOH *241(H2 O) HELIX 1 1 GLY A 45 GLU A 58 1 14 HELIX 2 2 SER A 62 TYR A 69 1 8 HELIX 3 3 TYR A 69 LYS A 92 1 24 HELIX 4 4 ALA A 99 ALA A 111 1 13 HELIX 5 5 GLY A 112 GLY A 117 5 6 HELIX 6 6 THR A 120 ASP A 133 1 14 HELIX 7 7 ASP A 133 ASN A 141 1 9 HELIX 8 8 ARG A 142 TYR A 146 5 5 HELIX 9 9 SER A 151 ASN A 157 1 7 HELIX 10 10 ASP A 158 ALA A 163 1 6 HELIX 11 11 THR A 170 THR A 177 1 8 HELIX 12 12 GLN A 204 PHE A 215 5 12 HELIX 13 13 SER A 228 LEU A 232 5 5 HELIX 14 14 ASN A 241 ASN A 255 1 15 HELIX 15 15 ASN A 256 THR A 260 5 5 HELIX 16 16 LYS A 270 ILE A 278 1 9 HELIX 17 17 PRO A 282 CYS A 286 5 5 HELIX 18 18 THR A 295 ASP A 309 1 15 HELIX 19 19 ASP A 328 ASN A 347 1 20 SHEET 1 A 6 ILE A 184 PHE A 191 0 SHEET 2 A 6 LEU A 194 VAL A 201 -1 O ASP A 200 N VAL A 185 SHEET 3 A 6 GLU A 33 LEU A 39 1 N LEU A 36 O PHE A 199 SHEET 4 A 6 ALA A 220 ALA A 226 1 O CYS A 224 N LEU A 39 SHEET 5 A 6 SER A 263 ASN A 269 1 O ILE A 265 N PHE A 223 SHEET 6 A 6 ILE A 319 PHE A 323 1 O HIS A 322 N LEU A 268 LINK OG SER A 47 MG MG A 356 1555 1555 2.14 LINK OG1 THR A 181 MG MG A 356 1555 1555 2.17 LINK O2G GNP A 355 MG MG A 356 1555 1555 2.16 LINK O1B GNP A 355 MG MG A 356 1555 1555 2.14 LINK MG MG A 356 O HOH A 401 1555 1555 2.18 LINK MG MG A 356 O HOH A 581 1555 1555 2.18 SITE 1 AC1 5 SER A 47 THR A 181 GNP A 355 HOH A 401 SITE 2 AC1 5 HOH A 581 SITE 1 AC2 32 GLY A 42 GLU A 43 SER A 44 GLY A 45 SITE 2 AC2 32 LYS A 46 SER A 47 THR A 48 SER A 151 SITE 3 AC2 32 LEU A 175 ARG A 176 THR A 177 ARG A 178 SITE 4 AC2 32 PRO A 180 THR A 181 GLY A 202 GLY A 203 SITE 5 AC2 32 ASN A 269 LYS A 270 ASP A 272 LEU A 273 SITE 6 AC2 32 CYS A 325 ALA A 326 THR A 327 MG A 356 SITE 7 AC2 32 HOH A 401 HOH A 402 HOH A 405 HOH A 414 SITE 8 AC2 32 HOH A 415 HOH A 442 HOH A 551 HOH A 581 CRYST1 79.317 79.317 105.141 90.00 90.00 120.00 P 32 2 1 6 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 0.012608 0.007279 0.000000 0.00000 SCALE2 0.000000 0.014558 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009511 0.00000