1EIC - Header Asymmetric Unit

HEADER HYDROLASE 25-FEB-00 1EIC

TITLE CRYSTAL STRUCTURE OF F120A MUTANT OF BOVINE PANCREATIC TITLE 2 RIBONUCLEASE A

COMPND MOL_ID: 1; COMPND 2 MOLECULE: RIBONUCLEASE A; COMPND 3 CHAIN: A; COMPND 4 EC: 3.1.27.5; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: CATTLE; SOURCE 4 ORGANISM_TAXID: 9913; SOURCE 5 ORGAN: PANCREAS; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID

KEYWDS RIBONUCLEASE, RNASE A, BOVINE PANCREAS, HYDROLASE

EXPDTA X-RAY DIFFRACTION

AUTHOR E.CHATANI,R.HAYASHI,H.MORIYAMA,T.UEKI

REVDAT 2 24-FEB-09 1EIC 1 VERSN REVDAT 1 13-FEB-02 1EIC 0

JRNL AUTH E.CHATANI,R.HAYASHI,H.MORIYAMA,T.UEKI JRNL TITL CONFORMATIONAL STRICTNESS REQUIRED FOR MAXIMUM JRNL TITL 2 ACTIVITY AND STABILITY OF BOVINE PANCREATIC JRNL TITL 3 RIBONUCLEASE A AS REVEALED BY CRYSTALLOGRAPHIC JRNL TITL 4 STUDY OF THREE PHE120 MUTANTS AT 1.4 A RESOLUTION. JRNL REF PROTEIN SCI. V. 11 72 2002 JRNL REFN ISSN 0961-8368 JRNL PMID 11742124 JRNL DOI 10.1110/PS.PS.31102

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 1.40 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 5.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 108876.720 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.2 REMARK 3 NUMBER OF REFLECTIONS : 28793 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 SET) : 0.201 REMARK 3 FREE R VALUE : 0.254 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.300 REMARK 3 FREE R VALUE TEST SET COUNT : 2965 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.005 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 10 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.40 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.45 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 100.00 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2607 REMARK 3 BIN R VALUE (WORKING SET) : 0.2420 REMARK 3 BIN FREE R VALUE : 0.2430 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.90 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 285 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.014 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 945 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 220 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 11.50 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.60 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.33000 REMARK 3 B22 (A**2) : 0.33000 REMARK 3 B33 (A**2) : -0.65000 REMARK 3 B12 (A**2) : 0.44000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.16 REMARK 3 ESD FROM SIGMAA (A) : 0.11 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.19 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) : 1.20 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 26.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.59 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.040 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.770 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.620 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.410 ; 2.500 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

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

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-MAR-00. REMARK 100 THE RCSB ID CODE IS RCSB010603.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 03-JUN-99 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SPRING-8 REMARK 200 BEAMLINE : BL44B2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.700 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (TRUNCATE) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 80089 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.000 REMARK 200 RESOLUTION RANGE LOW (A) : 16.800 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.7 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.07000 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 36.9400 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.01 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: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.84 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.72 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, SODIUM CHLORIDE, REMARK 280 SODIUM ACETATE, PH 6.0, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K

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 42.32800 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 21.16400 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 21.16400 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 42.32800 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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A MONOMER.

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 HOH A 220 O HOH A 220 5556 2.16 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 SER A 21 31.40 -99.41 REMARK 500 ASP A 38 -20.65 65.60 REMARK 500 GLN A 60 -136.22 -102.44 REMARK 500 ASN A 94 59.09 -110.46 REMARK 500 ASP A 121 51.43 -106.80 REMARK 500 ALA A 122 -167.64 85.60 REMARK 500 REMARK 500 REMARK: NULL

REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 125 DISTANCE = 28.06 ANGSTROMS REMARK 525 HOH A 143 DISTANCE = 21.62 ANGSTROMS REMARK 525 HOH A 144 DISTANCE = 10.89 ANGSTROMS REMARK 525 HOH A 146 DISTANCE = 5.36 ANGSTROMS REMARK 525 HOH A 147 DISTANCE = 7.24 ANGSTROMS REMARK 525 HOH A 148 DISTANCE = 9.82 ANGSTROMS REMARK 525 HOH A 151 DISTANCE = 7.21 ANGSTROMS REMARK 525 HOH A 153 DISTANCE = 11.93 ANGSTROMS REMARK 525 HOH A 160 DISTANCE = 15.62 ANGSTROMS REMARK 525 HOH A 162 DISTANCE = 15.14 ANGSTROMS REMARK 525 HOH A 166 DISTANCE = 38.27 ANGSTROMS REMARK 525 HOH A 168 DISTANCE = 8.65 ANGSTROMS REMARK 525 HOH A 171 DISTANCE = 19.24 ANGSTROMS REMARK 525 HOH A 176 DISTANCE = 6.65 ANGSTROMS REMARK 525 HOH A 179 DISTANCE = 6.47 ANGSTROMS REMARK 525 HOH A 181 DISTANCE = 12.51 ANGSTROMS REMARK 525 HOH A 182 DISTANCE = 20.23 ANGSTROMS REMARK 525 HOH A 184 DISTANCE = 9.86 ANGSTROMS REMARK 525 HOH A 186 DISTANCE = 7.76 ANGSTROMS REMARK 525 HOH A 187 DISTANCE = 17.75 ANGSTROMS REMARK 525 HOH A 188 DISTANCE = 7.05 ANGSTROMS REMARK 525 HOH A 190 DISTANCE = 14.90 ANGSTROMS REMARK 525 HOH A 193 DISTANCE = 6.83 ANGSTROMS REMARK 525 HOH A 196 DISTANCE = 13.42 ANGSTROMS REMARK 525 HOH A 200 DISTANCE = 8.04 ANGSTROMS REMARK 525 HOH A 202 DISTANCE = 8.52 ANGSTROMS REMARK 525 HOH A 203 DISTANCE = 6.94 ANGSTROMS REMARK 525 HOH A 205 DISTANCE = 22.71 ANGSTROMS REMARK 525 HOH A 206 DISTANCE = 15.43 ANGSTROMS REMARK 525 HOH A 210 DISTANCE = 12.46 ANGSTROMS REMARK 525 HOH A 212 DISTANCE = 12.56 ANGSTROMS REMARK 525 HOH A 213 DISTANCE = 38.76 ANGSTROMS REMARK 525 HOH A 216 DISTANCE = 14.86 ANGSTROMS REMARK 525 HOH A 217 DISTANCE = 9.27 ANGSTROMS REMARK 525 HOH A 218 DISTANCE = 6.94 ANGSTROMS REMARK 525 HOH A 220 DISTANCE = 24.80 ANGSTROMS REMARK 525 HOH A 223 DISTANCE = 6.48 ANGSTROMS REMARK 525 HOH A 224 DISTANCE = 12.81 ANGSTROMS REMARK 525 HOH A 226 DISTANCE = 43.14 ANGSTROMS REMARK 525 HOH A 228 DISTANCE = 15.56 ANGSTROMS REMARK 525 HOH A 230 DISTANCE = 22.61 ANGSTROMS REMARK 525 HOH A 232 DISTANCE = 17.38 ANGSTROMS REMARK 525 HOH A 235 DISTANCE = 18.81 ANGSTROMS REMARK 525 HOH A 236 DISTANCE = 16.64 ANGSTROMS REMARK 525 HOH A 239 DISTANCE = 8.29 ANGSTROMS REMARK 525 HOH A 241 DISTANCE = 8.23 ANGSTROMS REMARK 525 HOH A 243 DISTANCE = 37.59 ANGSTROMS REMARK 525 HOH A 245 DISTANCE = 7.28 ANGSTROMS REMARK 525 HOH A 248 DISTANCE = 9.75 ANGSTROMS REMARK 525 HOH A 249 DISTANCE = 8.64 ANGSTROMS REMARK 525 HOH A 256 DISTANCE = 10.68 ANGSTROMS REMARK 525 HOH A 257 DISTANCE = 9.50 ANGSTROMS REMARK 525 HOH A 258 DISTANCE = 12.59 ANGSTROMS REMARK 525 HOH A 259 DISTANCE = 19.90 ANGSTROMS REMARK 525 HOH A 264 DISTANCE = 9.40 ANGSTROMS REMARK 525 HOH A 265 DISTANCE = 8.17 ANGSTROMS REMARK 525 HOH A 270 DISTANCE = 14.19 ANGSTROMS REMARK 525 HOH A 272 DISTANCE = 13.99 ANGSTROMS REMARK 525 HOH A 275 DISTANCE = 11.35 ANGSTROMS REMARK 525 HOH A 288 DISTANCE = 9.75 ANGSTROMS REMARK 525 HOH A 291 DISTANCE = 6.98 ANGSTROMS REMARK 525 HOH A 295 DISTANCE = 11.43 ANGSTROMS REMARK 525 HOH A 296 DISTANCE = 7.76 ANGSTROMS REMARK 525 HOH A 299 DISTANCE = 48.55 ANGSTROMS REMARK 525 HOH A 301 DISTANCE = 16.75 ANGSTROMS REMARK 525 HOH A 307 DISTANCE = 6.63 ANGSTROMS REMARK 525 HOH A 308 DISTANCE = 9.79 ANGSTROMS REMARK 525 HOH A 318 DISTANCE = 14.96 ANGSTROMS REMARK 525 HOH A 334 DISTANCE = 8.37 ANGSTROMS REMARK 525 HOH A 335 DISTANCE = 17.14 ANGSTROMS

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1DP1 RELATED DB: PDB REMARK 900 F120G MUTANT OF BOVINE PARCREATIC RIBONUCLEASED A REMARK 900 RELATED ID: 1EID RELATED DB: PDB REMARK 900 F120G MUTANT OF BOVINE PARCREATIC RIBONUCLEASED A AT HIGH REMARK 900 RESOLUTION REMARK 900 RELATED ID: 1EIE RELATED DB: PDB REMARK 900 F120W MUTANT OF BOVINE PARCREATIC RIBONUCLEASED A REMARK 900 RELATED ID: 1FS3 RELATED DB: PDB REMARK 900 WILD TYPE BOVINE PARCREATIC RIBONUCLEASED A

DBREF 1EIC A 1 124 UNP P61823 RNAS1_BOVIN 27 150

SEQADV 1EIC ALA A 120 UNP P61823 PHE 146 ENGINEERED

SEQRES 1 A 124 LYS GLU THR ALA ALA ALA LYS PHE GLU ARG GLN HIS MET SEQRES 2 A 124 ASP SER SER THR SER ALA ALA SER SER SER ASN TYR CYS SEQRES 3 A 124 ASN GLN MET MET LYS SER ARG ASN LEU THR LYS ASP ARG SEQRES 4 A 124 CYS LYS PRO VAL ASN THR PHE VAL HIS GLU SER LEU ALA SEQRES 5 A 124 ASP VAL GLN ALA VAL CYS SER GLN LYS ASN VAL ALA CYS SEQRES 6 A 124 LYS ASN GLY GLN THR ASN CYS TYR GLN SER TYR SER THR SEQRES 7 A 124 MET SER ILE THR ASP CYS ARG GLU THR GLY SER SER LYS SEQRES 8 A 124 TYR PRO ASN CYS ALA TYR LYS THR THR GLN ALA ASN LYS SEQRES 9 A 124 HIS ILE ILE VAL ALA CYS GLU GLY ASN PRO TYR VAL PRO SEQRES 10 A 124 VAL HIS ALA ASP ALA SER VAL

FORMUL 2 HOH *220(H2 O)

HELIX 1 1 THR A 3 MET A 13 1 11 HELIX 2 2 ASN A 24 ARG A 33 1 10 HELIX 3 3 SER A 50 ALA A 56 1 7 HELIX 4 4 VAL A 57 GLN A 60 5 4

SHEET 1 A 3 VAL A 43 VAL A 47 0 SHEET 2 A 3 MET A 79 GLU A 86 -1 O THR A 82 N PHE A 46 SHEET 3 A 3 TYR A 97 LYS A 104 -1 N LYS A 98 O ARG A 85 SHEET 1 B 4 LYS A 61 VAL A 63 0 SHEET 2 B 4 CYS A 72 GLN A 74 -1 O CYS A 72 N VAL A 63 SHEET 3 B 4 ILE A 106 GLU A 111 -1 O VAL A 108 N TYR A 73 SHEET 4 B 4 VAL A 116 SER A 123 -1 O VAL A 116 N GLU A 111

SSBOND 1 CYS A 26 CYS A 84 1555 1555 2.04 SSBOND 2 CYS A 40 CYS A 95 1555 1555 2.02 SSBOND 3 CYS A 58 CYS A 110 1555 1555 2.03 SSBOND 4 CYS A 65 CYS A 72 1555 1555 2.03

CISPEP 1 TYR A 92 PRO A 93 0 0.07 CISPEP 2 ASN A 113 PRO A 114 0 0.19

CRYST1 63.661 63.661 63.492 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 0.015708 0.009069 0.000000 0.00000

SCALE2 0.000000 0.018138 0.000000 0.00000

SCALE3 0.000000 0.000000 0.015750 0.00000