HEADER HYDROLASE 29-JAN-07 2EA1 TITLE CRYSTAL STRUCTURE OF RIBONUCLEASE I FROM ESCHERICHIA COLI TITLE 2 COMPLEXED WITH GUANYLYL-2(PRIME),5(PRIME)-GUANOSINE COMPND MOL_ID: 1; COMPND 2 MOLECULE: RIBONUCLEASE I; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ENTEROBACTER RIBONUCLEASE, RNASE I; COMPND 5 EC: 3.1.27.6; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21LYSS; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET14B KEYWDS PROTEIN-GPG COMPLEX, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR K.ZHOU,J.PAN,S.PADMANABHAN,R.W.LIM,L.W.LIM REVDAT 2 24-FEB-09 2EA1 1 VERSN REVDAT 1 22-JAN-08 2EA1 0 JRNL AUTH K.ZHOU,J.PAN,S.PADMANABHAN,R.W.LIM,L.W.LIM JRNL TITL CRYSTAL STRUCTURE OF RIBONUCLEASE I FROM JRNL TITL 2 ESCHERICHIA COLI COMPLEXED WITH JRNL TITL 3 GUANYLYL-2(PRIME),5(PRIME)-GUANOSINE AT 1.80 JRNL TITL 4 ANGSTROMS RESOLUTION JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH S.PADMANABHAN,K.ZHOU,C.Y.CHU,R.W.LIM,L.W.LIM REMARK 1 TITL OVEREXPRESSION, BIOPHYSICAL CHARACTERIZATION, AND REMARK 1 TITL 2 CRYSTALLIZATION OF RIBONUCLEASE I FROM ESCHERICHIA REMARK 1 TITL 3 COLI, A BROAD-SPECIFICITY ENZYME IN THE RNASE T2 REMARK 1 TITL 4 FAMILY REMARK 1 REF ARCH.BIOCHEM.BIOPHYS. V. 390 42 2001 REMARK 1 REFN ISSN 0003-9861 REMARK 1 PMID 11368513 REMARK 1 DOI 10.1006/ABBI.2001.2359 REMARK 1 REFERENCE 2 REMARK 1 AUTH J.KOEPKE,M.MASLOWSKA,U.HEINEMANN,W.SAENGER REMARK 1 TITL THREE-DIMENSIONAL STRUCTURE OF RIBONUCLEASE T1 REMARK 1 TITL 2 COMPLEXED WITH GUANYLYL-2',5'-GUANOSINE AT 1.8 A REMARK 1 TITL 3 RESOLUTION REMARK 1 REF J.MOL.BIOL. V. 206 475 1989 REMARK 1 REFN ISSN 0022-2836 REMARK 1 PMID 2541256 REMARK 1 DOI 10.1016/0022-2836(89)90495-6 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0005 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 54.23 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 85.6 REMARK 3 NUMBER OF REFLECTIONS : 17471 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 + TEST SET) : 0.220 REMARK 3 R VALUE (WORKING SET) : 0.218 REMARK 3 FREE R VALUE : 0.257 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.200 REMARK 3 FREE R VALUE TEST SET COUNT : 957 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.85 REMARK 3 REFLECTION IN BIN (WORKING SET) : 527 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 35.08 REMARK 3 BIN R VALUE (WORKING SET) : 0.2630 REMARK 3 BIN FREE R VALUE SET COUNT : 30 REMARK 3 BIN FREE R VALUE : 0.2720 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1909 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 43 REMARK 3 SOLVENT ATOMS : 142 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 30.54 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 2.81000 REMARK 3 B22 (A**2) : -1.19000 REMARK 3 B33 (A**2) : -1.56000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.26000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.202 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.172 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.105 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.234 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.932 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.912 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2005 ; 0.015 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2721 ; 1.932 ; 1.979 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 244 ; 5.575 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 94 ;35.063 ;23.404 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 323 ;14.504 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 17 ;16.549 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 282 ; 0.170 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1559 ; 0.008 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 960 ; 0.227 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 1358 ; 0.308 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 160 ; 0.157 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 48 ; 0.343 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 13 ; 0.292 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 1244 ; 1.268 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1941 ; 2.096 ; 2.000 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 889 ; 3.263 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 780 ; 4.408 ; 4.500 REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE REMARK 3 RIDING POSITIONS REMARK 4 REMARK 4 2EA1 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 06-FEB-07. REMARK 100 THE RCSB ID CODE IS RCSB026413. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 12-JUN-97 REMARK 200 TEMPERATURE (KELVIN) : 200.0 REMARK 200 PH : 6.10 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 RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IIC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 18428 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 54.230 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 85.7 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.07700 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) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 36.4 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.18200 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: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.67 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.15 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 25% PEG 3350, 0.1M MES, 0.1M REMARK 280 AMMONIUM ACETATE, 1MM MAGNESIUM CHLORIDE, 10% GLYCEROL, 4MM REMARK 280 EDTA, VAPOR DIFFUSION, HANGING DROP, PH 6.10, TEMPERATURE REMARK 280 298.0K 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 24.93500 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O PHE A 11 NH2 ARG A 73 2656 2.16 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 RES CSSEQI ATM2 DEVIATION REMARK 500 ARG A 174 CZ ARG A 174 NH2 0.081 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ASP A 10 CB - CG - OD1 ANGL. DEV. = 7.2 DEGREES REMARK 500 ASP A 10 CB - CG - OD2 ANGL. DEV. = -5.5 DEGREES 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 ASP A 10 48.36 -84.25 REMARK 500 ASN A 32 95.17 54.62 REMARK 500 ARG A 33 -61.38 -135.15 REMARK 500 GLU A 38 -53.10 -146.67 REMARK 500 THR A 45 -115.08 -67.52 REMARK 500 THR A 46 -51.08 -158.97 REMARK 500 SER A 94 -78.19 -53.17 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GPG A 250 DBREF 2EA1 A 1 245 UNP P21338 RNI_ECOLI 24 268 SEQRES 1 A 245 LEU ALA LEU GLN ALA LYS GLN TYR GLY ASP PHE ASP ARG SEQRES 2 A 245 TYR VAL LEU ALA LEU SER TRP GLN THR GLY PHE CYS GLN SEQRES 3 A 245 SER GLN HIS ASP ARG ASN ARG ASN GLU ARG ASP GLU CYS SEQRES 4 A 245 ARG LEU GLN THR GLU THR THR ASN LYS ALA ASP PHE LEU SEQRES 5 A 245 THR VAL HIS GLY LEU TRP PRO GLY LEU PRO LYS SER VAL SEQRES 6 A 245 ALA ALA ARG GLY VAL ASP GLU ARG ARG TRP MET ARG PHE SEQRES 7 A 245 GLY CYS ALA THR ARG PRO ILE PRO ASN LEU PRO GLU ALA SEQRES 8 A 245 ARG ALA SER ARG MET CYS SER SER PRO GLU THR GLY LEU SEQRES 9 A 245 SER LEU GLU THR ALA ALA LYS LEU SER GLU VAL MET PRO SEQRES 10 A 245 GLY ALA GLY GLY ARG SER CYS LEU GLU ARG TYR GLU TYR SEQRES 11 A 245 ALA LYS HIS GLY ALA CYS PHE GLY PHE ASP PRO ASP ALA SEQRES 12 A 245 TYR PHE GLY THR MET VAL ARG LEU ASN GLN GLU ILE LYS SEQRES 13 A 245 GLU SER GLU ALA GLY LYS PHE LEU ALA ASP ASN TYR GLY SEQRES 14 A 245 LYS THR VAL SER ARG ARG ASP PHE ASP ALA ALA PHE ALA SEQRES 15 A 245 LYS SER TRP GLY LYS GLU ASN VAL LYS ALA VAL LYS LEU SEQRES 16 A 245 THR CYS GLN GLY ASN PRO ALA TYR LEU THR GLU ILE GLN SEQRES 17 A 245 ILE SER ILE LYS ALA ASP ALA ILE ASN ALA PRO LEU SER SEQRES 18 A 245 ALA ASN SER PHE LEU PRO GLN PRO HIS PRO GLY ASN CYS SEQRES 19 A 245 GLY LYS THR PHE VAL ILE ASP LYS ALA GLY TYR HET GPG A 250 43 HETNAM GPG GUANYLYL-2',5'-PHOSPHOGUANOSINE FORMUL 2 GPG C20 H25 N10 O12 P FORMUL 3 HOH *142(H2 O) HELIX 1 1 THR A 22 PHE A 24 5 3 HELIX 2 2 GLN A 26 ARG A 31 1 6 HELIX 3 3 GLU A 38 GLN A 42 5 5 HELIX 4 4 ASN A 47 ASP A 50 5 4 HELIX 5 5 PRO A 62 ALA A 67 1 6 HELIX 6 6 ASP A 71 GLY A 79 1 9 HELIX 7 7 CYS A 80 THR A 82 5 3 HELIX 8 8 ARG A 95 SER A 99 5 5 HELIX 9 9 SER A 105 MET A 116 1 12 HELIX 10 10 CYS A 124 GLY A 134 1 11 HELIX 11 11 ALA A 135 GLY A 138 5 4 HELIX 12 12 ASP A 140 SER A 158 1 19 HELIX 13 13 SER A 158 ASN A 167 1 10 HELIX 14 14 ARG A 174 GLY A 186 1 13 HELIX 15 15 LYS A 187 LYS A 191 5 5 HELIX 16 16 ASP A 214 ILE A 216 5 3 SHEET 1 A 4 LEU A 52 PRO A 59 0 SHEET 2 A 4 ARG A 13 TRP A 20 -1 N VAL A 15 O TRP A 58 SHEET 3 A 4 TYR A 203 LYS A 212 -1 O ILE A 207 N LEU A 18 SHEET 4 A 4 VAL A 193 GLN A 198 -1 N THR A 196 O THR A 205 SHEET 1 B 2 THR A 171 SER A 173 0 SHEET 2 B 2 THR A 237 VAL A 239 -1 O PHE A 238 N VAL A 172 SSBOND 1 CYS A 25 CYS A 39 1555 1555 2.05 SSBOND 2 CYS A 80 CYS A 136 1555 1555 2.03 SSBOND 3 CYS A 97 CYS A 124 1555 1555 2.03 SSBOND 4 CYS A 197 CYS A 234 1555 1555 2.03 CISPEP 1 ARG A 83 PRO A 84 0 1.16 CISPEP 2 ILE A 85 PRO A 86 0 -3.65 CISPEP 3 ASN A 200 PRO A 201 0 7.92 SITE 1 AC1 10 TRP A 58 MET A 76 TYR A 128 GLU A 129 SITE 2 AC1 10 HIS A 133 LYS A 194 GLN A 208 HOH A 281 SITE 3 AC1 10 HOH A 376 HOH A 389 CRYST1 43.200 49.870 54.520 90.00 96.37 90.00 P 1 21 1 2 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 0.023148 0.000000 0.002584 0.00000 SCALE2 0.000000 0.020052 0.000000 0.00000 SCALE3 0.000000 0.000000 0.018456 0.00000