1QWQ - Header Asymmetric Unit

HEADER HYDROLASE 03-SEP-03 1QWQ

TITLE SOLUTION STRUCTURE OF THE MONOMERIC N67D MUTANT OF BOVINE TITLE 2 SEMINAL RIBONUCLEASE

COMPND MOL_ID: 1; COMPND 2 MOLECULE: RIBONUCLEASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: SEMINAL RIBONUCLEASE; COMPND 5 EC: 3.1.27.5; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: CATTLE; SOURCE 4 ORGANISM_TAXID: 9913; SOURCE 5 GENE: SRN; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET-22B+

KEYWDS ALPHA-BETA-PROTEIN, HYDROLASE

EXPDTA SOLUTION NMR

NUMMDL 16

AUTHOR F.AVITABILE,C.ALFANO,R.SPADACCINI,O.CRESCENZI,A.M.D'URSI, AUTHOR 2 G.D'ALESSIO,T.TANCREDI,D.PICONE

REVDAT 2 24-FEB-09 1QWQ 1 VERSN REVDAT 1 16-SEP-03 1QWQ 0

SPRSDE 16-SEP-03 1QWQ 1O0G

JRNL AUTH F.AVITABILE,C.ALFANO,R.SPADACCINI,O.CRESCENZI, JRNL AUTH 2 A.M.D'URSI,G.D'ALESSIO,T.TANCREDI,D.PICONE JRNL TITL THE SWAPPING OF TERMINAL ARMS IN RIBONUCLEASES: JRNL TITL 2 COMPARISON OF THE SOLUTION STRUCTURE OF MONOMERIC JRNL TITL 3 BOVINE SEMINAL AND PANCREATIC RIBONUCLEASES JRNL REF BIOCHEMISTRY V. 42 8704 2003 JRNL REFN ISSN 0006-2960 JRNL PMID 12873130 JRNL DOI 10.1021/BI0342517

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH O.CRESCENZI,A.CAROTENUTO,A.M.D'URSI,T.TANCREDI, REMARK 1 AUTH 2 G.D'ALESSIO,F.AVITABILE,D.PICONE REMARK 1 TITL 1H AND 15N SEQUENTIAL ASSIGNMENT AND SECONDARY REMARK 1 TITL 2 STRUCTURE OF THE MONOMERIC N67D MUTANT OF BOVINE REMARK 1 TITL 3 SEMINAL RIBONUCLEASE. REMARK 1 REF J.BIOMOL.NMR V. 20 289 2001 REMARK 1 REFN ISSN 0925-2738 REMARK 1 DOI 10.1023/A:1011294812364

REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : AMBER 6.0 REMARK 3 AUTHORS : PEARLMAN,CASE,CALDWELL,ROSS,CHEATHAM,FERGUSON, REMARK 3 SEIBEL,SINGH,WEINER,KOLLMAN REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

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

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 08-SEP-03. REMARK 100 THE RCSB ID CODE IS RCSB020160.

REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 300 REMARK 210 PH : 5.65 REMARK 210 IONIC STRENGTH : 0 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 2.0MM MONOMERIC BOVINE REMARK 210 SEMINAL RIBONUCLEASE U-97% REMARK 210 15N; 2.0MM MONOMERIC BOVINE REMARK 210 SEMINAL RIBONUCLEASE REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 3D_15N-SEPARATED_NOESY, 3D_ REMARK 210 15N-SEPARATED_TOCSY, HNHA, REMARK 210 HNHB, 2D NOESY, 2D TOCSY, 2D REMARK 210 COSY, 2D NHSQC REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ, 600 MHZ, 400 MHZ REMARK 210 SPECTROMETER MODEL : DRX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : NMRPIPE, NMRVIEW 4.0.3, DYANA REMARK 210 1.5 REMARK 210 METHOD USED : TORSION ANGLE DYNAMICS, REMARK 210 ENERGY MINIMIZATION REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 40 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 16 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: NULL

REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS.

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 5 CYS A 65 CA - CB - SG ANGL. DEV. = 8.1 DEGREES REMARK 500 9 CYS A 40 CA - CB - SG ANGL. DEV. = 7.1 DEGREES REMARK 500 11 ARG A 33 NE - CZ - NH2 ANGL. DEV. = -3.2 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 1 SER A 3 -165.70 -123.27 REMARK 500 1 ALA A 4 -74.93 62.10 REMARK 500 1 HIS A 12 -51.95 -131.50 REMARK 500 1 THR A 45 62.31 -102.36 REMARK 500 1 HIS A 48 59.39 -90.41 REMARK 500 1 GLN A 60 -110.15 -94.72 REMARK 500 1 ASP A 67 -44.36 -150.95 REMARK 500 1 GLN A 69 -61.03 -154.39 REMARK 500 1 GLU A 86 84.15 -64.03 REMARK 500 1 LYS A 91 89.39 -151.32 REMARK 500 1 TYR A 92 125.05 -34.09 REMARK 500 1 ALA A 122 -170.06 -172.96 REMARK 500 2 ALA A 4 -67.22 -175.23 REMARK 500 2 SER A 15 71.26 -69.93 REMARK 500 2 SER A 22 -114.30 -89.28 REMARK 500 2 LYS A 39 -151.72 -86.29 REMARK 500 2 HIS A 48 -117.49 -82.52 REMARK 500 2 GLU A 49 -148.95 58.17 REMARK 500 2 SER A 59 48.41 -109.22 REMARK 500 2 GLN A 60 -126.74 -114.76 REMARK 500 2 GLN A 69 -69.27 -153.22 REMARK 500 2 GLU A 86 108.47 -43.61 REMARK 500 2 SER A 89 -48.23 -179.87 REMARK 500 2 SER A 90 109.82 -25.41 REMARK 500 2 LYS A 113 124.39 -34.39 REMARK 500 3 SER A 3 36.98 -144.75 REMARK 500 3 ALA A 4 -61.92 66.75 REMARK 500 3 ASP A 14 119.57 -169.07 REMARK 500 3 ASN A 17 150.90 66.80 REMARK 500 3 SER A 18 141.21 75.20 REMARK 500 3 SER A 21 68.79 -66.77 REMARK 500 3 PRO A 42 -71.40 -64.44 REMARK 500 3 PHE A 46 98.97 -65.48 REMARK 500 3 ASP A 67 -27.10 -146.99 REMARK 500 3 GLN A 69 -73.09 -159.73 REMARK 500 3 SER A 75 30.31 -69.27 REMARK 500 3 LYS A 76 -28.64 61.75 REMARK 500 3 GLU A 86 74.48 -68.42 REMARK 500 3 SER A 89 27.65 -164.09 REMARK 500 3 LYS A 91 80.06 -151.95 REMARK 500 3 TYR A 92 126.90 -36.59 REMARK 500 3 LYS A 113 123.63 -34.36 REMARK 500 4 GLU A 2 150.28 -48.81 REMARK 500 4 ALA A 4 -73.13 71.25 REMARK 500 4 SER A 15 65.30 -68.63 REMARK 500 4 SER A 18 140.94 69.73 REMARK 500 4 SER A 20 -90.98 -78.76 REMARK 500 4 SER A 22 -74.97 -97.65 REMARK 500 4 HIS A 48 -111.92 -82.34 REMARK 500 4 GLU A 49 -154.93 61.30 REMARK 500 4 GLN A 60 -123.34 -117.50 REMARK 500 4 ASP A 67 53.34 -144.75 REMARK 500 4 GLN A 69 -58.24 -161.97 REMARK 500 4 SER A 89 -36.35 179.83 REMARK 500 4 LYS A 113 123.50 -34.40 REMARK 500 4 VAL A 118 -23.02 -141.98 REMARK 500 5 SER A 20 157.75 74.25 REMARK 500 5 THR A 36 40.12 -83.12 REMARK 500 5 ASN A 44 76.82 -159.71 REMARK 500 5 GLU A 49 -143.28 -108.81 REMARK 500 5 THR A 70 73.28 43.22 REMARK 500 5 ASN A 71 44.92 -167.96 REMARK 500 5 SER A 89 -13.51 177.93 REMARK 500 5 TYR A 92 127.76 -39.07 REMARK 500 5 LYS A 104 -173.55 -179.42 REMARK 500 5 VAL A 118 -24.95 -147.76 REMARK 500 5 ALA A 122 -177.51 -173.57 REMARK 500 6 ALA A 4 -56.05 69.02 REMARK 500 6 SER A 20 -78.34 -45.29 REMARK 500 6 SER A 21 -130.83 -156.22 REMARK 500 6 SER A 22 -73.67 -129.94 REMARK 500 6 GLN A 60 -117.10 -96.93 REMARK 500 6 SER A 89 -36.68 168.40 REMARK 500 6 SER A 115 -163.13 -171.88 REMARK 500 7 ALA A 4 -75.41 61.80 REMARK 500 7 ASP A 14 62.06 -160.03 REMARK 500 7 SER A 15 39.56 28.37 REMARK 500 7 ASN A 17 87.20 -68.28 REMARK 500 7 SER A 18 171.63 73.60 REMARK 500 7 SER A 20 57.95 -60.27 REMARK 500 7 SER A 21 34.41 -170.49 REMARK 500 7 SER A 22 48.45 -78.15 REMARK 500 7 GLN A 60 -67.11 -101.51 REMARK 500 7 GLN A 69 -62.85 -129.19 REMARK 500 7 GLU A 86 108.40 -58.55 REMARK 500 7 SER A 89 -61.09 174.58 REMARK 500 7 SER A 90 103.67 -5.61 REMARK 500 7 LYS A 113 122.80 -34.45 REMARK 500 7 VAL A 118 -28.77 -145.26 REMARK 500 7 ALA A 122 -176.61 -171.68 REMARK 500 8 GLU A 2 122.17 -33.43 REMARK 500 8 ALA A 4 -55.01 -171.57 REMARK 500 8 ASP A 14 56.05 -156.20 REMARK 500 8 SER A 15 69.28 28.06 REMARK 500 8 SER A 21 139.62 -173.83 REMARK 500 8 SER A 22 -67.99 -138.43 REMARK 500 8 LYS A 34 40.71 71.77 REMARK 500 8 MET A 35 30.45 -94.04 REMARK 500 8 GLN A 60 -71.27 -88.34 REMARK 500 8 VAL A 63 -131.98 -122.39 REMARK 500 8 THR A 70 -157.45 -166.58 REMARK 500 8 CYS A 72 155.00 64.32 REMARK 500 8 GLU A 86 72.53 -61.56 REMARK 500 8 LYS A 113 127.29 -39.70 REMARK 500 8 SER A 115 97.47 -68.28 REMARK 500 8 VAL A 118 -14.57 -149.31 REMARK 500 8 ALA A 122 -175.46 -171.48 REMARK 500 8 SER A 123 -160.29 -122.63 REMARK 500 9 SER A 3 57.62 -142.47 REMARK 500 9 ALA A 4 -51.92 71.55 REMARK 500 9 HIS A 12 -80.14 -90.48 REMARK 500 9 PRO A 19 -168.34 -70.75 REMARK 500 9 LYS A 41 166.01 67.05 REMARK 500 9 HIS A 48 -122.45 -85.10 REMARK 500 9 GLU A 49 -164.55 60.04 REMARK 500 9 GLN A 60 -72.41 -85.66 REMARK 500 9 ASP A 67 -23.70 -153.79 REMARK 500 9 GLN A 69 -56.14 -123.14 REMARK 500 9 ARG A 80 86.35 -68.72 REMARK 500 9 GLU A 86 61.70 -65.40 REMARK 500 9 THR A 87 -149.04 -102.05 REMARK 500 9 SER A 89 33.41 -168.78 REMARK 500 10 GLU A 2 108.18 -37.82 REMARK 500 10 ALA A 4 -71.02 -176.24 REMARK 500 10 HIS A 12 -72.84 -137.30 REMARK 500 10 SER A 20 -149.57 -89.30 REMARK 500 10 SER A 21 82.34 -58.57 REMARK 500 10 SER A 22 -66.36 -19.92 REMARK 500 10 GLN A 37 21.09 48.71 REMARK 500 10 LYS A 39 -165.48 58.99 REMARK 500 10 GLN A 60 -74.80 -102.73 REMARK 500 10 ASP A 67 -34.54 -163.15 REMARK 500 10 GLN A 69 -67.60 -155.24 REMARK 500 11 SER A 3 53.83 -151.00 REMARK 500 11 ALA A 4 -59.34 175.01 REMARK 500 11 SER A 15 64.06 25.44 REMARK 500 11 SER A 18 134.97 75.88 REMARK 500 11 SER A 20 -159.90 -81.87 REMARK 500 11 SER A 22 -69.65 -108.27 REMARK 500 11 HIS A 48 69.59 -101.27 REMARK 500 11 GLN A 60 -114.24 -106.73 REMARK 500 11 GLN A 69 -113.66 -87.30 REMARK 500 11 THR A 70 -168.48 -163.56 REMARK 500 11 SER A 90 109.37 -26.68 REMARK 500 11 LYS A 113 117.68 -35.20 REMARK 500 11 VAL A 118 -18.15 -146.26 REMARK 500 12 ALA A 4 -76.55 59.81 REMARK 500 12 SER A 18 -57.21 155.16 REMARK 500 12 SER A 22 -139.71 -75.33 REMARK 500 12 SER A 23 -60.43 -22.87 REMARK 500 12 LYS A 34 38.39 73.16 REMARK 500 12 GLN A 37 85.23 -69.30 REMARK 500 12 GLN A 60 -94.57 -81.36 REMARK 500 12 LYS A 61 108.13 -163.25 REMARK 500 12 ASP A 67 -33.12 -149.55 REMARK 500 12 GLN A 69 -52.95 -127.46 REMARK 500 12 SER A 89 -34.76 167.50 REMARK 500 12 LYS A 104 -171.39 -177.52 REMARK 500 12 SER A 115 98.71 -60.41 REMARK 500 12 VAL A 118 -10.58 -154.71 REMARK 500 13 GLU A 2 107.91 -54.03 REMARK 500 13 SER A 3 48.39 -109.58 REMARK 500 13 ALA A 4 -59.03 70.56 REMARK 500 13 ASP A 14 74.23 -155.76 REMARK 500 13 SER A 15 99.33 -67.31 REMARK 500 13 SER A 20 -117.41 -115.71 REMARK 500 13 SER A 21 57.97 31.97 REMARK 500 13 THR A 36 56.50 -108.84 REMARK 500 13 GLN A 37 -107.99 -113.39 REMARK 500 13 LYS A 61 100.60 -166.55 REMARK 500 13 VAL A 63 -129.10 -130.93 REMARK 500 13 GLN A 69 -60.41 -120.78 REMARK 500 13 CYS A 72 141.79 72.76 REMARK 500 13 SER A 90 101.76 -44.30 REMARK 500 13 LYS A 113 127.01 -34.03 REMARK 500 13 VAL A 118 -30.04 -153.81 REMARK 500 13 ASP A 121 -67.50 -96.41 REMARK 500 13 ALA A 122 -165.87 -160.59 REMARK 500 14 ALA A 4 -75.06 69.32 REMARK 500 14 SER A 20 156.50 66.13 REMARK 500 14 SER A 22 159.61 78.32 REMARK 500 14 SER A 23 -70.48 -60.05 REMARK 500 14 LYS A 61 119.17 -162.51 REMARK 500 14 ASP A 67 -33.06 -147.18 REMARK 500 14 GLN A 69 -65.35 -154.13 REMARK 500 14 LYS A 76 24.16 -75.90 REMARK 500 14 ALA A 122 -179.37 -176.41 REMARK 500 15 SER A 3 58.90 -153.04 REMARK 500 15 ALA A 4 -76.94 26.54 REMARK 500 15 SER A 15 -142.87 39.54 REMARK 500 15 ASN A 17 -155.21 -156.85 REMARK 500 15 LYS A 34 32.95 70.34 REMARK 500 15 LYS A 39 -177.34 66.37 REMARK 500 15 PRO A 42 -84.94 -68.86 REMARK 500 15 GLN A 60 -109.73 -92.55 REMARK 500 15 GLN A 69 -47.81 -169.04 REMARK 500 15 THR A 70 -159.35 -151.88 REMARK 500 15 LYS A 104 -173.50 -177.92 REMARK 500 15 ALA A 122 -170.19 -170.49 REMARK 500 16 SER A 3 49.01 -148.15 REMARK 500 16 ALA A 4 -72.88 52.65 REMARK 500 16 SER A 15 97.02 -53.53 REMARK 500 16 SER A 18 136.62 -171.95 REMARK 500 16 SER A 21 48.64 -155.12 REMARK 500 16 GLN A 37 -74.55 64.04 REMARK 500 16 LYS A 39 -158.79 -158.85 REMARK 500 16 ASP A 67 -39.73 -160.32 REMARK 500 16 GLN A 69 -65.02 -143.55 REMARK 500 16 ARG A 80 86.11 -64.88 REMARK 500 16 GLU A 86 107.87 -45.35 REMARK 500 16 SER A 90 106.57 -42.38 REMARK 500 16 SER A 115 91.51 -67.37 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 1 TYR A 25 0.06 SIDE_CHAIN REMARK 500 1 PHE A 46 0.09 SIDE_CHAIN REMARK 500 1 TYR A 92 0.11 SIDE_CHAIN REMARK 500 2 ARG A 10 0.18 SIDE_CHAIN REMARK 500 4 TYR A 73 0.09 SIDE_CHAIN REMARK 500 4 TYR A 92 0.15 SIDE_CHAIN REMARK 500 4 TYR A 97 0.07 SIDE_CHAIN REMARK 500 5 TYR A 25 0.10 SIDE_CHAIN REMARK 500 6 TYR A 25 0.15 SIDE_CHAIN REMARK 500 6 TYR A 73 0.08 SIDE_CHAIN REMARK 500 7 TYR A 73 0.07 SIDE_CHAIN REMARK 500 7 TYR A 97 0.09 SIDE_CHAIN REMARK 500 8 TYR A 73 0.06 SIDE_CHAIN REMARK 500 8 TYR A 97 0.17 SIDE_CHAIN REMARK 500 9 TYR A 92 0.07 SIDE_CHAIN REMARK 500 9 TYR A 97 0.12 SIDE_CHAIN REMARK 500 10 TYR A 97 0.21 SIDE_CHAIN REMARK 500 11 TYR A 25 0.08 SIDE_CHAIN REMARK 500 11 PHE A 46 0.09 SIDE_CHAIN REMARK 500 11 TYR A 92 0.11 SIDE_CHAIN REMARK 500 11 TYR A 97 0.07 SIDE_CHAIN REMARK 500 12 ARG A 80 0.08 SIDE_CHAIN REMARK 500 13 TYR A 73 0.10 SIDE_CHAIN REMARK 500 13 TYR A 92 0.07 SIDE_CHAIN REMARK 500 13 TYR A 97 0.08 SIDE_CHAIN REMARK 500 15 TYR A 25 0.17 SIDE_CHAIN REMARK 500 16 TYR A 25 0.15 SIDE_CHAIN REMARK 500 REMARK 500 REMARK: NULL

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4980 RELATED DB: BMRB REMARK 900 1H AND 15N SEQUENTIAL ASSIGNMENT AND SECONDARY STRUCTURE OF REMARK 900 THE SAME PROTEIN REMARK 900 RELATED ID: 1BSR RELATED DB: PDB REMARK 900 X-RAY STRUCTURE OF BOVINE SEMINAL RIBONUCLEASE

DBREF 1QWQ A 1 124 UNP P00669 RNS_BOVIN 27 150

SEQADV 1QWQ ASP A 67 UNP P00669 ASN 93 ENGINEERED

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

HELIX 1 1 ALA A 4 HIS A 12 1 9 HELIX 2 2 SER A 21 LYS A 34 1 14 HELIX 3 3 SER A 50 SER A 59 1 10

SHEET 1 A 5 VAL A 43 VAL A 47 0 SHEET 2 A 5 MET A 79 ARG A 85 -1 O CYS A 84 N ASN A 44 SHEET 3 A 5 LYS A 98 GLY A 111 -1 O LYS A 98 N ARG A 85 SHEET 4 A 5 ASN A 71 GLN A 74 -1 N TYR A 73 O VAL A 108 SHEET 5 A 5 LYS A 61 THR A 64 -1 N VAL A 63 O CYS A 72 SHEET 1 B 4 VAL A 43 VAL A 47 0 SHEET 2 B 4 MET A 79 ARG A 85 -1 O CYS A 84 N ASN A 44 SHEET 3 B 4 LYS A 98 GLY A 111 -1 O LYS A 98 N ARG A 85 SHEET 4 B 4 VAL A 116 VAL A 124 -1 O ALA A 122 N ILE A 107

SSBOND 1 CYS A 26 CYS A 84 1555 1555 2.07 SSBOND 2 CYS A 40 CYS A 95 1555 1555 2.07 SSBOND 3 CYS A 58 CYS A 110 1555 1555 2.08 SSBOND 4 CYS A 65 CYS A 72 1555 1555 2.08

CISPEP 1 TYR A 92 PRO A 93 1 6.63 CISPEP 2 LYS A 113 PRO A 114 1 -2.22 CISPEP 3 TYR A 92 PRO A 93 2 7.49 CISPEP 4 LYS A 113 PRO A 114 2 4.19 CISPEP 5 TYR A 92 PRO A 93 3 10.14 CISPEP 6 LYS A 113 PRO A 114 3 3.98 CISPEP 7 TYR A 92 PRO A 93 4 5.85 CISPEP 8 LYS A 113 PRO A 114 4 4.96 CISPEP 9 TYR A 92 PRO A 93 5 8.09 CISPEP 10 LYS A 113 PRO A 114 5 -2.21 CISPEP 11 TYR A 92 PRO A 93 6 3.89 CISPEP 12 LYS A 113 PRO A 114 6 -7.28 CISPEP 13 TYR A 92 PRO A 93 7 6.66 CISPEP 14 LYS A 113 PRO A 114 7 3.44 CISPEP 15 TYR A 92 PRO A 93 8 10.00 CISPEP 16 LYS A 113 PRO A 114 8 2.46 CISPEP 17 TYR A 92 PRO A 93 9 7.61 CISPEP 18 LYS A 113 PRO A 114 9 -4.82 CISPEP 19 TYR A 92 PRO A 93 10 2.80 CISPEP 20 LYS A 113 PRO A 114 10 3.82 CISPEP 21 TYR A 92 PRO A 93 11 8.29 CISPEP 22 LYS A 113 PRO A 114 11 5.08 CISPEP 23 TYR A 92 PRO A 93 12 5.15 CISPEP 24 LYS A 113 PRO A 114 12 -2.47 CISPEP 25 TYR A 92 PRO A 93 13 7.63 CISPEP 26 LYS A 113 PRO A 114 13 -3.33 CISPEP 27 TYR A 92 PRO A 93 14 5.62 CISPEP 28 LYS A 113 PRO A 114 14 -1.58 CISPEP 29 TYR A 92 PRO A 93 15 -0.97 CISPEP 30 LYS A 113 PRO A 114 15 -3.55 CISPEP 31 TYR A 92 PRO A 93 16 1.35 CISPEP 32 LYS A 113 PRO A 114 16 -4.42

CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1

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 1.000000 0.000000 0.000000 0.00000

SCALE2 0.000000 1.000000 0.000000 0.00000

SCALE3 0.000000 0.000000 1.000000 0.00000