1RMS - Header Asymmetric Unit

HEADER HYDROLASE(ENDORIBONUCLEASE) 02-DEC-91 1RMS

TITLE CRYSTAL STRUCTURES OF RIBONUCLEASE MS COMPLEXED WITH 3'- TITLE 2 GUANYLIC ACID A GP*C ANALOGUE, 2'-DEOXY-2'-FLUOROGUANYLYL- TITLE 3 3',5'-CYTIDINE

COMPND MOL_ID: 1; COMPND 2 MOLECULE: RIBONUCLEASE MS; COMPND 3 CHAIN: A; COMPND 4 EC: 3.1.4.23; COMPND 5 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ASPERGILLUS PHOENICIS; SOURCE 3 ORGANISM_TAXID: 5063

KEYWDS HYDROLASE(ENDORIBONUCLEASE)

EXPDTA X-RAY DIFFRACTION

AUTHOR T.NONAKA,Y.MITSUI,K.T.NAKAMURA

REVDAT 6 24-FEB-09 1RMS 1 VERSN REVDAT 5 15-MAY-95 1RMS 1 REMARK REVDAT 4 31-OCT-93 1RMS 1 FORMUL REVDAT 3 15-JUL-93 1RMS 1 AUTHOR REVDAT 2 15-JAN-93 1RMS 1 JRNL REVDAT 1 15-JUL-92 1RMS 0

JRNL AUTH T.NONAKA,K.T.NAKAMURA,S.UESUGI,M.IKEHARA,M.IRIE, JRNL AUTH 2 Y.MITSUI JRNL TITL CRYSTAL STRUCTURE OF RIBONUCLEASE MS (AS A JRNL TITL 2 RIBONUCLEASE T1 HOMOLOGUE) COMPLEXED WITH A JRNL TITL 3 GUANYLYL-3',5'-CYTIDINE ANALOGUE. JRNL REF BIOCHEMISTRY V. 32 11825 1993 JRNL REFN ISSN 0006-2960 JRNL PMID 8218254 JRNL DOI 10.1021/BI00095A011

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH T.NONAKA,Y.MITSUI,M.IRIE,K.T.NAKAMURA REMARK 1 TITL THREE-DIMENSIONAL STRUCTURE OF RIBONUCLEASE REMARK 1 TITL 2 MS(ASTERISK)3'-GUANYLIC ACID COMPLEX AT 2.5A REMARK 1 TITL 3 RESOLUTION REMARK 1 REF FEBS LETT. V. 283 207 1991 REMARK 1 REFN ISSN 0014-5793 REMARK 1 REFERENCE 2 REMARK 1 AUTH T.NONAKA Y.MITSUI,K.T.NAKAMURA,H.WATANABE,K.OHGI, REMARK 1 AUTH 2 M.IRIE REMARK 1 TITL CRYSTALLIZATION OF A COMPLEX BETWEEN RIBONUCLEASE REMARK 1 TITL 2 MS AND 3'-GUANYLIC ACID REMARK 1 REF J.MOL.BIOL. V. 207 853 1989 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 3 REMARK 1 AUTH R.ARNI,U.HEINEMANN,R.TOKUOKA,W.SAENGER REMARK 1 TITL THREE-DIMENSIONAL STRUCTURE OF THE RIBONUCLEASE REMARK 1 TITL 2 T1(ASTERISK)2'-GMP COMPLEX AT 1.9-A RESOLUTION REMARK 1 REF J.BIOL.CHEM. V. 263 15358 1988 REMARK 1 REFN ISSN 0021-9258

REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PROLSQ REMARK 3 AUTHORS : KONNERT,HENDRICKSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 5863 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : 0.185 REMARK 3 R VALUE (WORKING SET) : NULL REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL WITH ALL DATA. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 803 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 24 REMARK 3 SOLVENT ATOMS : 24 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 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.016 ; NULL REMARK 3 ANGLE DISTANCE (A) : NULL ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; 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 OTHER REFINEMENT REMARKS: THE RMS DEVIATION BETWEEN THE REMARK 3 SUPERIMPOSED CA POSITIONS OF RNASE MS AND RNASE T1 (REFERENCE REMARK 3 3, PROTEIN DATA BANK ENTRY 1RNT) EXCLUDING THE FOUR N-TERMINAL REMARK 3 RESIDUES IS 0.55 ANGSTROMS. SIGNIFICANT DEVIATION OCCURS ONLY REMARK 3 AT THE N-TERMINUS EXCEPT FOR A LOOP-OUT PORTION WHICH REMARK 3 INDICATES THAT THE T1 SEQUENCE, GLY 34-SER 35-ASN 36-SER 37, REMARK 3 SHOULD BE ALIGNED WITH THE MS SEQUENCE ASP-35-GAP-GAP-ASP 36. REMARK 3 THE FOLLOWING CRITERIA WERE ADOPTED FOR ASSIGNING MAIN-CHAIN REMARK 3 HYDROGEN BONDS: THE MAXIMUM DISTANCE BETWEEN AN AMIDE HYDROGEN REMARK 3 AND A CARBONYL OXYGEN IS 2.60 ANGSTROMS. THE MAXIMUM DISTANCE REMARK 3 BETWEEN AN AMIDE NITROGEN AND A CARBONYL OXYGEN IS REMARK 3 3.35.ANGSTROMS. THE MINIMUM NHO ANGLE IS 100 DEGREES. THE REMARK 3 MINIMUM COH ANGLE IS 100 DEGREES. THE MINIMUM CON ANGLE IS 100 REMARK 3 DEGREES. HYDROGEN ATOM POSITIONS WERE CALCULATED USING THE REMARK 3 PROGRAM *X-PLOR*. THE ASSIGNMENT OF BETA-TURN TYPES IS BASED REMARK 3 ON WILMOT AND THORNTON (C.M.WILMOT AND J.M.THORNTON, PROTEIN REMARK 3 ENGINEERING, 3, 479-493, 1990). PHI,PSI ANGLES ARE ALLOWED TO REMARK 3 DEVIATE BY 30 DEGREES FROM THEIR IDEAL VALUES.

REMARK 4 REMARK 4 1RMS COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL 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) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL 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: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.45 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-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 23.51500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 18.97500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 31.40000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 18.97500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.51500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 31.40000 REMARK 290 SMTRY3 4 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: 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 GLU A 1 CA - CB - CG ANGL. DEV. = 15.0 DEGREES REMARK 500 CYS A 3 CA - CB - SG ANGL. DEV. = -12.7 DEGREES REMARK 500 TYR A 5 CB - CG - CD2 ANGL. DEV. = -4.8 DEGREES REMARK 500 TYR A 28 CB - CG - CD1 ANGL. DEV. = -3.6 DEGREES REMARK 500 ASP A 32 CB - CG - OD1 ANGL. DEV. = 6.0 DEGREES REMARK 500 HIS A 39 CB - CG - CD2 ANGL. DEV. = 7.4 DEGREES REMARK 500 GLU A 40 OE1 - CD - OE2 ANGL. DEV. = 7.3 DEGREES REMARK 500 GLU A 40 CG - CD - OE2 ANGL. DEV. = -14.1 DEGREES REMARK 500 TYR A 41 CB - CG - CD2 ANGL. DEV. = -4.3 DEGREES REMARK 500 ASP A 48 C - N - CA ANGL. DEV. = 21.2 DEGREES REMARK 500 PHE A 49 CB - CG - CD2 ANGL. DEV. = -4.6 DEGREES REMARK 500 PHE A 49 CB - CG - CD1 ANGL. DEV. = 5.7 DEGREES REMARK 500 GLY A 53 O - C - N ANGL. DEV. = -10.5 DEGREES REMARK 500 TYR A 55 CB - CG - CD2 ANGL. DEV. = -5.4 DEGREES REMARK 500 TYR A 55 CB - CG - CD1 ANGL. DEV. = 5.1 DEGREES REMARK 500 ASP A 63 CB - CG - OD1 ANGL. DEV. = 8.0 DEGREES REMARK 500 ASP A 63 CB - CG - OD2 ANGL. DEV. = -6.5 DEGREES REMARK 500 ASP A 65 CB - CG - OD2 ANGL. DEV. = -6.1 DEGREES REMARK 500 THR A 68 N - CA - CB ANGL. DEV. = 12.0 DEGREES REMARK 500 ASP A 75 CB - CG - OD1 ANGL. DEV. = 6.0 DEGREES REMARK 500 ARG A 76 CD - NE - CZ ANGL. DEV. = 11.1 DEGREES REMARK 500 ASP A 83 CB - CG - OD2 ANGL. DEV. = -5.4 DEGREES REMARK 500 SER A 95 C - N - CA ANGL. DEV. = 18.3 DEGREES REMARK 500 SER A 105 C - N - CA ANGL. DEV. = 17.4 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 PHE A 49 110.07 5.68 REMARK 500 THR A 68 24.04 -141.87 REMARK 500 SER A 95 -72.93 -19.01 REMARK 500 SER A 104 -127.59 -156.80 REMARK 500 REMARK 500 REMARK: NULL

REMARK 700 REMARK 700 SHEET REMARK 700 ASP 83 (POSITION 1), GLU 84 (POSITION 2) AND ASN 80 REMARK 700 (POSITION X) FORM A "G1 TYPE" BETA BULGE. GLU 84 AND ASN REMARK 700 80 ALSO OCCUPY RESPECTIVELY POSITIONS 0 AND X-1 OF A "WIDE REMARK 700 TYPE" BETA BULGE (SEE REMARK 9). REMARK 700 ALA 86 (POSITION 1), GLY 87 (POSITION 2) AND ILE 78 REMARK 700 (POSITION X) FORM A "CLASSIC TYPE" BETA BULGE. ALA 86 AND REMARK 700 ILE 78 ALSO OCCUPY POSITIONS 3 AND X+1 OF A "WIDE TYPE" REMARK 700 BETA BULGE (SEE REMARK 9). REMARK 700 GLU 4 (POSITION 1), TYR 5 (POSITION 2) AND TYR 12 REMARK 700 (POSITION X) FORM A "CLASSIC TYPE" BETA BULGE. REMARK 700 GLU 84 (POSITION 0), LEU 85 (POSITION 1) ALA 86 (POSITION REMARK 700 3) ILE 78 (POSITION X-1), PHE 79 (POSITION X) AND ASN 80 REMARK 700 (POSITION X+1) FORM A "WIDE TYPE" BETA BULGE (SEE REMARKS REMARK 700 6 AND 7).

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 3GP A 106

DBREF 1RMS A 1 105 UNP P00653 RNMS_ASPSA 1 105

SEQADV 1RMS GLU A 40 UNP P00653 GLY 40 CONFLICT

SEQRES 1 A 105 GLU SER CYS GLU TYR THR CYS GLY SER THR CYS TYR TRP SEQRES 2 A 105 SER SER ASP VAL SER ALA ALA LYS ALA LYS GLY TYR SER SEQRES 3 A 105 LEU TYR GLU SER GLY ASP THR ILE ASP ASP TYR PRO HIS SEQRES 4 A 105 GLU TYR HIS ASP TYR GLU GLY PHE ASP PHE PRO VAL SER SEQRES 5 A 105 GLY THR TYR TYR GLU TYR PRO ILE MET SER ASP TYR ASP SEQRES 6 A 105 VAL TYR THR GLY GLY SER PRO GLY ALA ASP ARG VAL ILE SEQRES 7 A 105 PHE ASN GLY ASP ASP GLU LEU ALA GLY VAL ILE THR HIS SEQRES 8 A 105 THR GLY ALA SER GLY ASP ASP PHE VAL ALA CYS SER SER SEQRES 9 A 105 SER

HET 3GP A 106 24

HETNAM 3GP GUANOSINE-3'-MONOPHOSPHATE

FORMUL 2 3GP C10 H14 N5 O8 P FORMUL 3 HOH *24(H2 O)

HELIX 1 A SER A 14 SER A 30 1 17

SHEET 1 S1 2 GLU A 4 CYS A 7 0 SHEET 2 S1 2 THR A 10 TYR A 12 -1 N TYR A 12 O TYR A 5 SHEET 1 S2 5 HIS A 39 TYR A 41 0 SHEET 2 S2 5 TYR A 55 ILE A 60 -1 N GLU A 57 O HIS A 39 SHEET 3 S2 5 ASP A 75 ASN A 80 -1 N VAL A 77 O TYR A 58 SHEET 4 S2 5 ASP A 83 THR A 90 -1 N GLY A 87 O ILE A 78 SHEET 5 S2 5 VAL A 100 SER A 103 -1 N CYS A 102 O VAL A 88

SSBOND 1 CYS A 3 CYS A 11 1555 1555 2.03 SSBOND 2 CYS A 7 CYS A 102 1555 1555 2.07

CISPEP 1 TYR A 37 PRO A 38 0 -1.90 CISPEP 2 GLY A 53 THR A 54 0 0.80

SITE 1 AC1 14 GLU A 1 TRP A 13 TYR A 37 HIS A 39 SITE 2 AC1 14 TYR A 41 HIS A 42 ASP A 43 TYR A 44 SITE 3 AC1 14 GLU A 45 GLU A 57 ARG A 76 HIS A 91 SITE 4 AC1 14 ASP A 97 PHE A 99

CRYST1 47.030 62.800 37.950 90.00 90.00 90.00 P 21 21 21 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 0.021263 0.000000 0.000000 0.00000

SCALE2 0.000000 0.015924 0.000000 0.00000

SCALE3 0.000000 0.000000 0.026351 0.00000