1AB7 - Header Asymmetric Unit

HEADER RIBONUCLEASE INHIBITOR 04-FEB-97 1AB7

TITLE NMR 15N RELAXATION AND STRUCTURAL STUDIES REVEAL TITLE 2 CONFORMATIONAL EXCHANGE IN BARSTAR C40/82A, 30 STRUCTURES

COMPND MOL_ID: 1; COMPND 2 MOLECULE: BARSTAR; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BACILLUS AMYLOLIQUEFACIENS; SOURCE 3 ORGANISM_TAXID: 1390; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562

KEYWDS RIBONUCLEASE INHIBITOR

EXPDTA SOLUTION NMR

NUMMDL 30

AUTHOR K.B.WONG,A.R.FERSHT,S.M.V.FREUND

REVDAT 2 24-FEB-09 1AB7 1 VERSN REVDAT 1 04-SEP-97 1AB7 0

JRNL AUTH K.B.WONG,A.R.FERSHT,S.M.FREUND JRNL TITL NMR 15N RELAXATION AND STRUCTURAL STUDIES REVEAL JRNL TITL 2 SLOW CONFORMATIONAL EXCHANGE IN BARSTAR C40/82A. JRNL REF J.MOL.BIOL. V. 268 494 1997 JRNL REFN ISSN 0022-2836 JRNL PMID 9159486 JRNL DOI 10.1006/JMBI.1997.0989

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH R.W.HARTLEY REMARK 1 TITL BARNASE AND BARSTAR: TWO SMALL PROTEINS TO FOLD REMARK 1 TITL 2 AND FIT TOGETHER REMARK 1 REF TRENDS BIOCHEM.SCI. V. 14 450 1989 REMARK 1 REFN ISSN 0968-0004

REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 1AB7 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

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

REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 303 REMARK 210 PH : 6.7 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : NULL REMARK 210 SAMPLE CONTENTS : NULL REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : NOESY REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ, 600 MHZ REMARK 210 SPECTROMETER MODEL : AMX 500, AMX2 600 REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : X-PLOR 3.1 REMARK 210 METHOD USED : DISTANCE GEOMETRY - SIMULATED REMARK 210 ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 150 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 30 REMARK 210 CONFORMERS, SELECTION CRITERIA : LEAST RESTRAINT VIOLATION REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL REMARK 210 REMARK 210 REMARK: THE STRUCTURE WAS DETERMINED USING TRIPLE-RESONANCE NMR REMARK 210 SPECTROSCOPY ON THE 13C, 15N-LABELED BARSTAR MUTANT C40A,C82A

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: 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 ALA A 25 51.88 71.97 REMARK 500 1 PRO A 27 -166.63 -78.06 REMARK 500 1 TYR A 30 115.43 -31.79 REMARK 500 1 ALA A 40 -71.28 -81.51 REMARK 500 1 THR A 42 45.65 -82.97 REMARK 500 1 TRP A 44 -55.62 -165.24 REMARK 500 1 GLU A 52 84.62 -66.46 REMARK 500 1 ARG A 54 -138.77 -61.68 REMARK 500 1 GLN A 55 102.16 -43.03 REMARK 500 1 SER A 59 -31.86 83.45 REMARK 500 1 THR A 63 -143.16 -135.81 REMARK 500 1 ASN A 65 38.67 179.92 REMARK 500 1 ALA A 79 -70.87 -90.21 REMARK 500 1 ALA A 82 149.87 -39.65 REMARK 500 1 ASP A 83 61.15 -106.46 REMARK 500 1 LEU A 88 -39.05 -147.36 REMARK 500 2 ALA A 25 50.83 75.41 REMARK 500 2 TYR A 30 117.44 -35.39 REMARK 500 2 ALA A 40 -70.83 -81.67 REMARK 500 2 TRP A 44 -46.15 -172.95 REMARK 500 2 GLU A 52 85.67 -61.23 REMARK 500 2 ARG A 54 -93.01 -52.85 REMARK 500 2 GLU A 57 -71.48 -48.54 REMARK 500 2 SER A 59 -42.05 83.15 REMARK 500 2 LEU A 62 -31.36 -33.13 REMARK 500 2 THR A 63 -133.50 -101.77 REMARK 500 2 GLU A 64 -47.03 -138.97 REMARK 500 2 ASN A 65 20.50 -156.60 REMARK 500 2 ALA A 82 160.81 -40.99 REMARK 500 2 ASP A 83 54.81 -115.79 REMARK 500 3 TYR A 30 114.06 -34.65 REMARK 500 3 TRP A 44 -46.82 -174.80 REMARK 500 3 GLU A 52 86.41 -62.51 REMARK 500 3 GLN A 55 -161.54 49.16 REMARK 500 3 PHE A 56 -71.14 173.11 REMARK 500 3 LEU A 62 -25.10 -38.81 REMARK 500 3 THR A 63 -134.23 -89.53 REMARK 500 3 GLU A 64 59.05 -163.50 REMARK 500 3 ASN A 65 16.87 83.61 REMARK 500 3 ALA A 79 -70.47 -93.88 REMARK 500 3 ALA A 82 155.87 -39.59 REMARK 500 3 ASP A 83 54.26 -109.73 REMARK 500 4 ALA A 25 51.42 77.22 REMARK 500 4 TYR A 30 110.51 -36.21 REMARK 500 4 ASN A 33 -168.08 -161.91 REMARK 500 4 ALA A 40 -71.35 -81.10 REMARK 500 4 THR A 42 41.58 -81.11 REMARK 500 4 TRP A 44 -66.44 -174.79 REMARK 500 4 VAL A 45 -29.21 -38.44 REMARK 500 4 GLU A 46 128.00 73.16 REMARK 500 4 GLU A 52 85.56 -65.77 REMARK 500 4 ARG A 54 -144.35 -68.44 REMARK 500 4 GLN A 55 94.19 -39.76 REMARK 500 4 GLU A 57 -83.13 -44.46 REMARK 500 4 GLN A 58 168.93 -44.48 REMARK 500 4 SER A 59 -39.72 84.49 REMARK 500 4 LEU A 62 -32.22 -32.59 REMARK 500 4 THR A 63 -147.60 -100.73 REMARK 500 4 ASN A 65 33.96 176.48 REMARK 500 4 ALA A 82 150.81 -38.94 REMARK 500 4 ASP A 83 59.61 -105.69 REMARK 500 4 LEU A 88 -42.55 -143.00 REMARK 500 5 TYR A 30 138.31 -36.14 REMARK 500 5 GLU A 32 54.46 -155.03 REMARK 500 5 ASN A 33 -167.69 -164.77 REMARK 500 5 ALA A 40 -71.55 -82.10 REMARK 500 5 THR A 42 44.10 -82.12 REMARK 500 5 TRP A 44 -47.70 -164.20 REMARK 500 5 GLU A 52 84.32 -66.47 REMARK 500 5 ARG A 54 -166.41 -60.83 REMARK 500 5 PHE A 56 -74.10 79.43 REMARK 500 5 LEU A 62 -26.12 -38.29 REMARK 500 5 THR A 63 -144.04 -110.67 REMARK 500 5 GLU A 64 99.39 -168.45 REMARK 500 5 ASN A 65 -4.07 79.45 REMARK 500 5 ALA A 82 150.57 -40.21 REMARK 500 5 ASP A 83 57.68 -107.73 REMARK 500 5 ILE A 87 -72.45 -92.84 REMARK 500 5 LEU A 88 80.48 67.05 REMARK 500 6 ALA A 25 52.57 77.45 REMARK 500 6 PRO A 27 -167.27 -79.05 REMARK 500 6 GLU A 32 50.41 -172.74 REMARK 500 6 ALA A 40 -71.19 -81.55 REMARK 500 6 THR A 42 41.05 -80.29 REMARK 500 6 TRP A 44 -68.45 -167.11 REMARK 500 6 VAL A 45 -29.90 -37.54 REMARK 500 6 GLU A 46 142.77 73.41 REMARK 500 6 GLU A 52 87.74 -62.02 REMARK 500 6 ARG A 54 -141.45 -65.25 REMARK 500 6 GLN A 55 95.45 -42.75 REMARK 500 6 SER A 59 -23.21 84.41 REMARK 500 6 THR A 63 -88.65 -126.71 REMARK 500 6 GLU A 64 57.60 170.09 REMARK 500 6 ALA A 82 147.57 -38.83 REMARK 500 6 ASP A 83 59.92 -105.36 REMARK 500 7 TYR A 30 110.14 -37.73 REMARK 500 7 GLU A 32 -18.42 84.95 REMARK 500 7 TRP A 44 -38.22 -175.54 REMARK 500 7 GLU A 52 86.07 -62.93 REMARK 500 7 GLN A 55 -87.23 62.41 REMARK 500 7 PHE A 56 -49.54 84.57 REMARK 500 7 SER A 59 -23.47 83.33 REMARK 500 7 THR A 63 -141.27 -133.88 REMARK 500 7 ASN A 65 53.66 -179.46 REMARK 500 7 ALA A 79 -68.02 -94.03 REMARK 500 7 ALA A 82 151.38 -40.26 REMARK 500 7 ASP A 83 61.19 -107.32 REMARK 500 7 LEU A 88 -53.58 -144.43 REMARK 500 8 ALA A 25 53.21 76.67 REMARK 500 8 TYR A 30 129.87 -34.62 REMARK 500 8 GLU A 32 47.44 -85.65 REMARK 500 8 TRP A 44 -46.67 -172.97 REMARK 500 8 GLU A 52 85.37 -63.82 REMARK 500 8 ARG A 54 -132.71 -62.34 REMARK 500 8 LEU A 62 -25.85 -38.28 REMARK 500 8 THR A 63 -91.58 -102.01 REMARK 500 8 GLU A 64 -27.66 166.49 REMARK 500 8 ASN A 65 30.12 -177.41 REMARK 500 8 ALA A 82 155.45 -40.27 REMARK 500 8 ASP A 83 57.71 -109.37 REMARK 500 8 LEU A 88 -45.69 -137.19 REMARK 500 9 ILE A 10 95.52 -66.29 REMARK 500 9 SER A 12 73.37 178.42 REMARK 500 9 ILE A 13 -36.65 77.12 REMARK 500 9 ALA A 25 57.38 76.98 REMARK 500 9 PRO A 27 -167.65 -77.76 REMARK 500 9 TYR A 30 124.19 -35.95 REMARK 500 9 ALA A 40 -70.33 -81.41 REMARK 500 9 TRP A 44 -43.74 -177.21 REMARK 500 9 GLU A 52 84.93 -64.61 REMARK 500 9 GLN A 55 94.17 41.53 REMARK 500 9 SER A 59 -34.31 83.50 REMARK 500 9 LEU A 62 -24.95 -38.77 REMARK 500 9 THR A 63 -140.09 -104.16 REMARK 500 9 GLU A 64 80.62 -159.01 REMARK 500 9 ALA A 79 -67.23 -96.04 REMARK 500 9 ALA A 82 157.71 -41.44 REMARK 500 9 ASP A 83 62.95 -112.54 REMARK 500 10 PRO A 27 -164.59 -78.03 REMARK 500 10 TYR A 30 107.37 -28.96 REMARK 500 10 ALA A 40 -70.46 -81.65 REMARK 500 10 THR A 42 48.20 -84.64 REMARK 500 10 TRP A 44 -50.43 -167.49 REMARK 500 10 GLU A 52 87.19 -65.72 REMARK 500 10 ARG A 54 -141.21 -66.32 REMARK 500 10 GLN A 55 95.32 -42.53 REMARK 500 10 SER A 59 -20.46 82.79 REMARK 500 10 THR A 63 -88.53 -132.96 REMARK 500 10 GLU A 64 -32.86 176.84 REMARK 500 10 ASN A 65 31.84 179.90 REMARK 500 10 ALA A 79 -69.72 -90.85 REMARK 500 10 ASP A 83 57.97 -106.54 REMARK 500 10 LEU A 88 -87.20 66.70 REMARK 500 11 ALA A 25 54.48 77.08 REMARK 500 11 PRO A 27 -169.88 -77.75 REMARK 500 11 TYR A 29 -8.54 -59.60 REMARK 500 11 TYR A 30 151.54 -36.59 REMARK 500 11 GLU A 32 84.77 -57.68 REMARK 500 11 ASN A 33 172.97 177.13 REMARK 500 11 ALA A 40 -70.44 -81.76 REMARK 500 11 LEU A 41 -38.73 -38.09 REMARK 500 11 THR A 42 37.91 -79.93 REMARK 500 11 TRP A 44 -62.91 -169.32 REMARK 500 11 GLU A 46 140.25 74.47 REMARK 500 11 GLU A 52 86.07 -66.36 REMARK 500 11 ARG A 54 -142.16 -66.96 REMARK 500 11 GLN A 55 95.12 -41.59 REMARK 500 11 GLU A 57 -88.00 -44.23 REMARK 500 11 SER A 59 -39.35 82.45 REMARK 500 11 LEU A 62 -25.77 -37.97 REMARK 500 11 THR A 63 -90.91 -94.68 REMARK 500 11 GLU A 64 -27.64 165.92 REMARK 500 11 ASN A 65 33.37 178.68 REMARK 500 11 ALA A 79 -70.57 -92.60 REMARK 500 11 ALA A 82 150.47 -38.93 REMARK 500 11 ASP A 83 62.05 -107.44 REMARK 500 11 LEU A 88 57.88 -174.39 REMARK 500 12 ALA A 25 52.26 75.07 REMARK 500 12 PRO A 27 -166.68 -78.66 REMARK 500 12 TYR A 30 130.89 -36.37 REMARK 500 12 GLU A 32 48.84 -86.25 REMARK 500 12 TRP A 44 -41.21 -175.36 REMARK 500 12 GLU A 52 85.54 -64.79 REMARK 500 12 ARG A 54 -147.12 -72.92 REMARK 500 12 GLN A 55 95.35 -43.21 REMARK 500 12 GLU A 57 -72.84 -50.13 REMARK 500 12 SER A 59 -40.98 83.12 REMARK 500 12 LEU A 62 -30.48 -34.10 REMARK 500 12 THR A 63 -142.17 -96.36 REMARK 500 12 GLU A 64 82.47 -159.81 REMARK 500 12 ASN A 65 -2.06 79.60 REMARK 500 12 ALA A 79 -71.23 -90.49 REMARK 500 12 ALA A 82 153.15 -39.52 REMARK 500 12 ASP A 83 59.64 -106.93 REMARK 500 13 ALA A 25 53.08 74.53 REMARK 500 13 PRO A 27 -165.59 -77.96 REMARK 500 13 TYR A 30 143.90 -38.90 REMARK 500 13 TRP A 44 -42.65 -173.37 REMARK 500 13 GLU A 52 85.39 -62.75 REMARK 500 13 GLN A 55 77.91 43.05 REMARK 500 13 GLU A 57 -74.66 -67.40 REMARK 500 13 GLN A 58 174.16 -59.65 REMARK 500 13 SER A 59 -36.70 83.11 REMARK 500 13 LEU A 62 -30.75 -33.73 REMARK 500 13 THR A 63 -133.49 -96.47 REMARK 500 13 GLU A 64 63.68 -152.87 REMARK 500 13 ALA A 79 -46.17 -157.21 REMARK 500 13 ALA A 82 151.52 -43.61 REMARK 500 13 ASP A 83 61.12 -107.28 REMARK 500 14 PRO A 27 -165.21 -77.17 REMARK 500 14 TYR A 30 145.30 -35.02 REMARK 500 14 ASN A 33 -177.51 -65.77 REMARK 500 14 THR A 42 46.28 -83.41 REMARK 500 14 TRP A 44 -38.80 -169.12 REMARK 500 14 GLU A 52 85.23 -64.61 REMARK 500 14 GLN A 55 -74.83 77.61 REMARK 500 14 PHE A 56 -76.14 87.52 REMARK 500 14 GLN A 58 -105.83 -60.58 REMARK 500 14 SER A 59 -31.93 -34.44 REMARK 500 14 THR A 63 -135.61 -135.61 REMARK 500 14 ASN A 65 33.32 80.47 REMARK 500 14 ALA A 79 -71.66 -89.82 REMARK 500 14 ALA A 82 159.99 -39.95 REMARK 500 14 ASP A 83 54.74 -107.46 REMARK 500 15 SER A 12 57.54 -176.05 REMARK 500 15 ILE A 13 -34.14 83.46 REMARK 500 15 ALA A 25 54.39 74.45 REMARK 500 15 PRO A 27 -165.89 -77.34 REMARK 500 15 TYR A 30 148.67 -37.82 REMARK 500 15 ALA A 40 -70.08 -82.13 REMARK 500 15 THR A 42 48.62 -84.59 REMARK 500 15 TRP A 44 -43.13 -169.93 REMARK 500 15 GLU A 52 86.66 -65.15 REMARK 500 15 ARG A 54 -98.22 -30.06 REMARK 500 15 PHE A 56 -74.85 76.01 REMARK 500 15 SER A 59 -25.70 83.11 REMARK 500 15 THR A 63 -90.00 -122.68 REMARK 500 15 GLU A 64 62.48 168.31 REMARK 500 15 ALA A 79 -72.76 -94.45 REMARK 500 15 ALA A 82 154.01 -40.98 REMARK 500 15 ASP A 83 58.70 -106.42 REMARK 500 15 ILE A 87 -77.60 -79.66 REMARK 500 15 LEU A 88 55.66 73.41 REMARK 500 16 TYR A 30 108.07 -26.47 REMARK 500 16 GLU A 32 -18.63 156.27 REMARK 500 16 ASN A 33 -154.68 -83.55 REMARK 500 16 ALA A 40 -71.16 -82.22 REMARK 500 16 THR A 42 47.75 -84.52 REMARK 500 16 TRP A 44 -42.38 -170.12 REMARK 500 16 GLU A 52 84.60 -66.32 REMARK 500 16 GLN A 55 -88.76 52.36 REMARK 500 16 PHE A 56 -72.94 84.47 REMARK 500 16 LEU A 62 -25.65 -38.40 REMARK 500 16 THR A 63 -140.85 -103.40 REMARK 500 16 GLU A 64 81.21 -159.54 REMARK 500 16 ALA A 79 -66.91 -91.87 REMARK 500 16 ALA A 82 153.22 -40.13 REMARK 500 16 ASP A 83 57.37 -109.19 REMARK 500 17 SER A 12 63.40 -178.63 REMARK 500 17 ILE A 13 -38.18 82.73 REMARK 500 17 TYR A 30 112.88 -35.01 REMARK 500 17 ALA A 40 -71.06 -81.11 REMARK 500 17 THR A 42 41.11 -79.66 REMARK 500 17 TRP A 44 -35.51 -174.43 REMARK 500 17 GLU A 46 150.69 72.04 REMARK 500 17 GLU A 52 84.52 -66.78 REMARK 500 17 GLN A 55 -144.66 49.82 REMARK 500 17 PHE A 56 -73.17 177.62 REMARK 500 17 GLN A 58 -80.77 -46.41 REMARK 500 17 LEU A 62 -25.60 -38.76 REMARK 500 17 THR A 63 -143.21 -94.44 REMARK 500 17 GLU A 64 77.98 -157.42 REMARK 500 17 ASN A 65 -2.21 78.28 REMARK 500 17 ALA A 79 -70.37 -87.02 REMARK 500 17 ALA A 82 148.41 -38.53 REMARK 500 17 ASP A 83 58.08 -106.44 REMARK 500 17 LEU A 88 -90.19 -104.56 REMARK 500 18 TYR A 30 153.08 -44.87 REMARK 500 18 GLU A 32 34.72 -89.11 REMARK 500 18 TRP A 44 -45.15 -173.91 REMARK 500 18 GLU A 52 84.41 -65.35 REMARK 500 18 ARG A 54 -102.93 -49.60 REMARK 500 18 PHE A 56 -45.71 84.39 REMARK 500 18 LEU A 62 -27.97 -37.28 REMARK 500 18 THR A 63 -141.77 -106.58 REMARK 500 18 GLU A 64 85.37 -162.10 REMARK 500 18 ASN A 65 -8.57 82.32 REMARK 500 18 ALA A 79 -65.77 -92.56 REMARK 500 18 ALA A 82 158.61 -40.62 REMARK 500 18 ASP A 83 56.34 -113.78 REMARK 500 18 LEU A 88 -39.38 -141.67 REMARK 500 19 ALA A 25 52.84 72.04 REMARK 500 19 PRO A 27 -167.49 -77.64 REMARK 500 19 TYR A 30 129.72 -37.08 REMARK 500 19 TRP A 44 -40.32 -176.53 REMARK 500 19 GLU A 52 86.23 -60.10 REMARK 500 19 ARG A 54 -102.27 -74.20 REMARK 500 19 PHE A 56 -46.92 81.68 REMARK 500 19 LEU A 62 -24.41 -38.50 REMARK 500 19 THR A 63 -100.24 -106.58 REMARK 500 19 GLU A 64 58.24 170.57 REMARK 500 19 ASN A 65 7.35 86.46 REMARK 500 19 ALA A 79 -69.94 -90.41 REMARK 500 19 ALA A 82 153.88 -41.53 REMARK 500 19 ASP A 83 56.55 -110.36 REMARK 500 20 ILE A 10 96.98 -68.76 REMARK 500 20 ALA A 25 52.81 75.72 REMARK 500 20 TYR A 30 122.62 -39.10 REMARK 500 20 GLU A 32 47.15 35.36 REMARK 500 20 ALA A 40 -71.94 -81.41 REMARK 500 20 THR A 42 47.70 -84.01 REMARK 500 20 TRP A 44 -46.75 -167.24 REMARK 500 20 GLU A 52 87.49 -61.07 REMARK 500 20 ARG A 54 -95.53 -54.88 REMARK 500 20 LEU A 62 -26.00 -38.48 REMARK 500 20 THR A 63 -142.99 -106.12 REMARK 500 20 GLU A 64 84.23 -158.78 REMARK 500 20 ASN A 65 -5.62 80.07 REMARK 500 20 ALA A 79 -69.00 -91.33 REMARK 500 20 ALA A 82 150.40 -38.87 REMARK 500 20 ASP A 83 55.88 -106.56 REMARK 500 21 ALA A 25 50.87 72.00 REMARK 500 21 PRO A 27 -168.08 -77.05 REMARK 500 21 TYR A 30 142.29 -39.33 REMARK 500 21 TRP A 44 -36.59 -171.42 REMARK 500 21 GLU A 46 151.50 68.37 REMARK 500 21 GLU A 52 84.81 -62.87 REMARK 500 21 GLU A 57 -87.56 -52.17 REMARK 500 21 GLN A 58 161.05 -47.18 REMARK 500 21 SER A 59 -42.73 83.12 REMARK 500 21 LEU A 62 -26.59 -37.46 REMARK 500 21 THR A 63 -141.03 -97.37 REMARK 500 21 GLU A 64 87.27 -161.57 REMARK 500 21 ALA A 79 -70.68 -90.86 REMARK 500 21 ASP A 83 58.25 -108.40 REMARK 500 22 PRO A 27 -167.60 -78.04 REMARK 500 22 TYR A 30 117.78 -32.10 REMARK 500 22 GLU A 32 42.93 -84.84 REMARK 500 22 ALA A 40 -70.08 -81.57 REMARK 500 22 THR A 42 48.51 -84.01 REMARK 500 22 TRP A 44 -39.14 -170.19 REMARK 500 22 GLU A 52 85.10 -66.35 REMARK 500 22 ARG A 54 -97.10 -38.33 REMARK 500 22 PHE A 56 -64.21 83.26 REMARK 500 22 SER A 59 -40.02 82.43 REMARK 500 22 LEU A 62 -27.39 -36.85 REMARK 500 22 THR A 63 -143.23 -91.54 REMARK 500 22 GLU A 64 92.59 -163.88 REMARK 500 22 ALA A 79 -68.23 -91.47 REMARK 500 22 ALA A 82 154.47 -40.36 REMARK 500 22 ASP A 83 61.56 -111.16 REMARK 500 23 ALA A 25 52.44 75.76 REMARK 500 23 PRO A 27 -169.16 -76.91 REMARK 500 23 TYR A 30 117.93 -33.61 REMARK 500 23 TRP A 44 -49.88 -175.77 REMARK 500 23 GLU A 46 102.85 62.34 REMARK 500 23 GLU A 52 87.31 -62.07 REMARK 500 23 GLN A 55 -151.58 52.47 REMARK 500 23 PHE A 56 -64.24 179.36 REMARK 500 23 GLN A 58 -72.32 -63.46 REMARK 500 23 LEU A 62 -24.91 -39.00 REMARK 500 23 THR A 63 -149.93 -108.60 REMARK 500 23 ASN A 65 32.87 -176.13 REMARK 500 23 ALA A 79 -67.11 -91.30 REMARK 500 23 ALA A 82 160.63 -41.78 REMARK 500 23 ASP A 83 58.01 -116.67 REMARK 500 24 SER A 12 66.20 -178.78 REMARK 500 24 ILE A 13 -34.49 80.00 REMARK 500 24 PRO A 27 -168.85 -77.50 REMARK 500 24 TYR A 30 127.90 -38.75 REMARK 500 24 GLU A 32 47.56 178.18 REMARK 500 24 TRP A 44 -42.59 -174.59 REMARK 500 24 GLU A 52 87.49 -65.12 REMARK 500 24 ARG A 54 -129.37 -61.38 REMARK 500 24 PHE A 56 -30.84 -35.89 REMARK 500 24 SER A 59 -25.93 80.56 REMARK 500 24 GLN A 61 -82.27 -78.66 REMARK 500 24 LEU A 62 -49.91 -19.75 REMARK 500 24 THR A 63 -140.38 -86.37 REMARK 500 24 GLU A 64 93.80 -163.10 REMARK 500 24 ALA A 79 -70.24 -87.68 REMARK 500 24 ALA A 82 152.01 -41.24 REMARK 500 24 ASP A 83 60.16 -108.31 REMARK 500 25 ALA A 25 52.83 75.82 REMARK 500 25 PRO A 27 -165.53 -77.36 REMARK 500 25 TYR A 30 110.86 -29.98 REMARK 500 25 ALA A 40 -71.38 -81.81 REMARK 500 25 THR A 42 48.11 -83.81 REMARK 500 25 TRP A 44 -44.45 -168.42 REMARK 500 25 GLU A 52 83.81 -68.04 REMARK 500 25 ARG A 54 -86.81 -55.36 REMARK 500 25 LEU A 62 -27.74 -36.48 REMARK 500 25 THR A 63 -139.66 -104.13 REMARK 500 25 GLU A 64 82.12 -158.99 REMARK 500 25 ALA A 79 -71.96 -92.37 REMARK 500 25 ALA A 82 151.51 -40.60 REMARK 500 25 ASP A 83 62.60 -107.21 REMARK 500 26 ALA A 25 53.90 75.12 REMARK 500 26 TYR A 30 110.93 -35.73 REMARK 500 26 GLU A 32 40.96 73.69 REMARK 500 26 ALA A 40 -70.45 -81.26 REMARK 500 26 THR A 42 42.25 -80.03 REMARK 500 26 TRP A 44 -59.54 -174.25 REMARK 500 26 GLU A 46 125.34 67.51 REMARK 500 26 GLU A 52 84.70 -65.19 REMARK 500 26 GLN A 55 -46.83 82.58 REMARK 500 26 PHE A 56 -60.23 83.93 REMARK 500 26 SER A 59 -41.49 83.10 REMARK 500 26 LEU A 62 -30.07 -34.53 REMARK 500 26 THR A 63 -137.61 -94.25 REMARK 500 26 GLU A 64 -47.37 -143.59 REMARK 500 26 ASN A 65 18.41 -152.50 REMARK 500 26 ALA A 79 -72.54 -95.45 REMARK 500 26 ALA A 82 155.29 -40.67 REMARK 500 26 ASP A 83 62.48 -110.35 REMARK 500 27 ALA A 25 49.16 76.15 REMARK 500 27 TYR A 30 112.65 -38.13 REMARK 500 27 ALA A 40 -72.16 -81.10 REMARK 500 27 THR A 42 47.48 -83.99 REMARK 500 27 TRP A 44 -44.73 -169.31 REMARK 500 27 GLU A 52 85.03 -65.28 REMARK 500 27 ARG A 54 -141.23 -64.47 REMARK 500 27 GLN A 55 95.81 -43.08 REMARK 500 27 GLU A 57 -77.83 -68.38 REMARK 500 27 GLN A 58 150.84 -49.18 REMARK 500 27 SER A 59 -28.06 84.42 REMARK 500 27 THR A 63 -130.03 -133.04 REMARK 500 27 ALA A 79 -69.87 -90.32 REMARK 500 27 ALA A 82 149.47 -39.66 REMARK 500 27 ASP A 83 60.10 -105.64 REMARK 500 28 ALA A 25 53.15 76.58 REMARK 500 28 PRO A 27 -169.81 -77.04 REMARK 500 28 TYR A 30 119.33 -35.74 REMARK 500 28 GLU A 32 89.08 -49.41 REMARK 500 28 ASN A 33 -171.89 -176.04 REMARK 500 28 TRP A 44 -41.71 -173.98 REMARK 500 28 GLU A 52 84.71 -67.28 REMARK 500 28 ARG A 54 -126.70 -65.39 REMARK 500 28 GLN A 58 -99.46 -46.13 REMARK 500 28 SER A 59 -37.52 -27.09 REMARK 500 28 LYS A 60 -74.13 -56.81 REMARK 500 28 THR A 63 -95.41 -137.75 REMARK 500 28 GLU A 64 63.44 177.99 REMARK 500 28 ALA A 79 -70.21 -90.84 REMARK 500 28 ALA A 82 151.28 -39.20 REMARK 500 28 ASP A 83 60.59 -107.13 REMARK 500 29 PRO A 27 -165.83 -80.00 REMARK 500 29 TYR A 30 118.90 -28.17 REMARK 500 29 ASN A 33 -178.73 -171.24 REMARK 500 29 THR A 42 42.95 -80.72 REMARK 500 29 TRP A 44 -46.73 -172.48 REMARK 500 29 GLU A 46 123.97 72.03 REMARK 500 29 GLU A 52 84.58 -64.70 REMARK 500 29 GLN A 55 -86.36 62.81 REMARK 500 29 PHE A 56 -44.35 84.12 REMARK 500 29 SER A 59 -23.37 84.40 REMARK 500 29 THR A 63 -94.12 -120.84 REMARK 500 29 GLU A 64 47.62 -176.82 REMARK 500 29 ASN A 65 17.79 84.40 REMARK 500 29 ALA A 79 -71.97 -91.20 REMARK 500 29 ALA A 82 153.45 -39.92 REMARK 500 29 ASP A 83 61.30 -109.23 REMARK 500 29 LEU A 88 -92.68 64.88 REMARK 500 30 ALA A 25 51.51 72.72 REMARK 500 30 PRO A 27 -168.02 -78.99 REMARK 500 30 TYR A 30 135.65 -38.37 REMARK 500 30 GLU A 32 47.93 -147.24 REMARK 500 30 THR A 42 49.14 -84.73 REMARK 500 30 TRP A 44 -40.10 -170.82 REMARK 500 30 GLU A 52 84.93 -66.10 REMARK 500 30 GLN A 55 70.54 43.46 REMARK 500 30 GLU A 57 -84.50 -63.91 REMARK 500 30 GLN A 58 159.96 -48.63 REMARK 500 30 SER A 59 -43.22 83.07 REMARK 500 30 LEU A 62 -28.88 -35.85 REMARK 500 30 THR A 63 -136.24 -91.83 REMARK 500 30 GLU A 64 82.34 -161.47 REMARK 500 30 ALA A 79 -67.44 -92.94 REMARK 500 30 ALA A 82 158.09 -39.73 REMARK 500 30 ASP A 83 61.34 -112.67 REMARK 500 30 ILE A 87 -76.72 -88.23 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 ARG A 11 0.17 SIDE_CHAIN REMARK 500 1 ARG A 54 0.24 SIDE_CHAIN REMARK 500 1 ARG A 75 0.30 SIDE_CHAIN REMARK 500 2 ARG A 11 0.10 SIDE_CHAIN REMARK 500 2 ARG A 54 0.24 SIDE_CHAIN REMARK 500 2 ARG A 75 0.08 SIDE_CHAIN REMARK 500 3 ARG A 11 0.32 SIDE_CHAIN REMARK 500 3 ARG A 54 0.32 SIDE_CHAIN REMARK 500 3 ARG A 75 0.18 SIDE_CHAIN REMARK 500 4 ARG A 11 0.29 SIDE_CHAIN REMARK 500 4 ARG A 75 0.30 SIDE_CHAIN REMARK 500 5 ARG A 11 0.28 SIDE_CHAIN REMARK 500 5 ARG A 54 0.27 SIDE_CHAIN REMARK 500 5 ARG A 75 0.26 SIDE_CHAIN REMARK 500 6 ARG A 11 0.22 SIDE_CHAIN REMARK 500 6 ARG A 54 0.18 SIDE_CHAIN REMARK 500 6 ARG A 75 0.32 SIDE_CHAIN REMARK 500 7 ARG A 11 0.31 SIDE_CHAIN REMARK 500 7 ARG A 54 0.29 SIDE_CHAIN REMARK 500 7 ARG A 75 0.19 SIDE_CHAIN REMARK 500 8 ARG A 11 0.30 SIDE_CHAIN REMARK 500 8 ARG A 54 0.30 SIDE_CHAIN REMARK 500 8 ARG A 75 0.18 SIDE_CHAIN REMARK 500 9 ARG A 11 0.31 SIDE_CHAIN REMARK 500 9 ARG A 54 0.24 SIDE_CHAIN REMARK 500 9 ARG A 75 0.22 SIDE_CHAIN REMARK 500 10 ARG A 11 0.31 SIDE_CHAIN REMARK 500 10 ARG A 54 0.30 SIDE_CHAIN REMARK 500 10 ARG A 75 0.21 SIDE_CHAIN REMARK 500 11 ARG A 11 0.21 SIDE_CHAIN REMARK 500 11 ARG A 54 0.11 SIDE_CHAIN REMARK 500 11 ARG A 75 0.30 SIDE_CHAIN REMARK 500 12 ARG A 11 0.14 SIDE_CHAIN REMARK 500 12 ARG A 54 0.19 SIDE_CHAIN REMARK 500 12 ARG A 75 0.09 SIDE_CHAIN REMARK 500 13 ARG A 11 0.13 SIDE_CHAIN REMARK 500 13 ARG A 54 0.30 SIDE_CHAIN REMARK 500 13 ARG A 75 0.26 SIDE_CHAIN REMARK 500 14 ARG A 11 0.31 SIDE_CHAIN REMARK 500 14 ARG A 54 0.31 SIDE_CHAIN REMARK 500 14 ARG A 75 0.22 SIDE_CHAIN REMARK 500 15 ARG A 11 0.27 SIDE_CHAIN REMARK 500 15 ARG A 54 0.32 SIDE_CHAIN REMARK 500 15 ARG A 75 0.12 SIDE_CHAIN REMARK 500 16 ARG A 11 0.23 SIDE_CHAIN REMARK 500 16 ARG A 54 0.24 SIDE_CHAIN REMARK 500 16 ARG A 75 0.32 SIDE_CHAIN REMARK 500 17 ARG A 11 0.24 SIDE_CHAIN REMARK 500 17 ARG A 54 0.18 SIDE_CHAIN REMARK 500 17 ARG A 75 0.29 SIDE_CHAIN REMARK 500 18 ARG A 11 0.28 SIDE_CHAIN REMARK 500 18 ARG A 54 0.32 SIDE_CHAIN REMARK 500 18 ARG A 75 0.25 SIDE_CHAIN REMARK 500 19 ARG A 11 0.23 SIDE_CHAIN REMARK 500 19 ARG A 75 0.25 SIDE_CHAIN REMARK 500 20 ARG A 11 0.30 SIDE_CHAIN REMARK 500 20 ARG A 54 0.30 SIDE_CHAIN REMARK 500 20 ARG A 75 0.17 SIDE_CHAIN REMARK 500 21 ARG A 11 0.22 SIDE_CHAIN REMARK 500 21 ARG A 54 0.32 SIDE_CHAIN REMARK 500 21 ARG A 75 0.29 SIDE_CHAIN REMARK 500 22 ARG A 11 0.17 SIDE_CHAIN REMARK 500 22 ARG A 54 0.11 SIDE_CHAIN REMARK 500 22 ARG A 75 0.29 SIDE_CHAIN REMARK 500 23 ARG A 11 0.26 SIDE_CHAIN REMARK 500 23 ARG A 54 0.28 SIDE_CHAIN REMARK 500 24 ARG A 11 0.11 SIDE_CHAIN REMARK 500 24 ARG A 54 0.27 SIDE_CHAIN REMARK 500 24 ARG A 75 0.21 SIDE_CHAIN REMARK 500 25 ARG A 11 0.25 SIDE_CHAIN REMARK 500 25 ARG A 54 0.28 SIDE_CHAIN REMARK 500 25 ARG A 75 0.32 SIDE_CHAIN REMARK 500 26 ARG A 11 0.23 SIDE_CHAIN REMARK 500 26 ARG A 54 0.26 SIDE_CHAIN REMARK 500 26 ARG A 75 0.10 SIDE_CHAIN REMARK 500 27 ARG A 11 0.32 SIDE_CHAIN REMARK 500 27 ARG A 54 0.30 SIDE_CHAIN REMARK 500 27 ARG A 75 0.31 SIDE_CHAIN REMARK 500 28 ARG A 11 0.23 SIDE_CHAIN REMARK 500 28 ARG A 54 0.31 SIDE_CHAIN REMARK 500 28 ARG A 75 0.21 SIDE_CHAIN REMARK 500 29 ARG A 11 0.32 SIDE_CHAIN REMARK 500 29 ARG A 54 0.27 SIDE_CHAIN REMARK 500 29 ARG A 75 0.27 SIDE_CHAIN REMARK 500 30 ARG A 11 0.09 SIDE_CHAIN REMARK 500 30 ARG A 54 0.29 SIDE_CHAIN REMARK 500 30 ARG A 75 0.29 SIDE_CHAIN REMARK 500 REMARK 500 REMARK: NULL

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: BNB REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: RESIDUE 26 - 44 IS THE REGION THAT BINDS TO REMARK 800 THE ACTIVE SITE OF THE RIBONUCLEASE BARNASE AND INHIBITS THE REMARK 800 ENZYME.

DBREF 1AB7 A 1 89 UNP P11540 BARS_BACAM 1 89

SEQADV 1AB7 ALA A 40 UNP P11540 CYS 40 ENGINEERED SEQADV 1AB7 ALA A 82 UNP P11540 CYS 82 ENGINEERED

SEQRES 1 A 89 LYS LYS ALA VAL ILE ASN GLY GLU GLN ILE ARG SER ILE SEQRES 2 A 89 SER ASP LEU HIS GLN THR LEU LYS LYS GLU LEU ALA LEU SEQRES 3 A 89 PRO GLU TYR TYR GLY GLU ASN LEU ASP ALA LEU TRP ASP SEQRES 4 A 89 ALA LEU THR GLY TRP VAL GLU TYR PRO LEU VAL LEU GLU SEQRES 5 A 89 TRP ARG GLN PHE GLU GLN SER LYS GLN LEU THR GLU ASN SEQRES 6 A 89 GLY ALA GLU SER VAL LEU GLN VAL PHE ARG GLU ALA LYS SEQRES 7 A 89 ALA GLU GLY ALA ASP ILE THR ILE ILE LEU SER

HELIX 1 H2 ASN A 33 GLY A 43 1 11 HELIX 2 H3 PHE A 56 THR A 63 1 8 HELIX 3 H4 GLU A 68 GLY A 81 1 14

SHEET 1 S1 2 LEU A 49 ARG A 54 0 SHEET 2 S1 2 ASP A 83 SER A 89 1

CISPEP 1 TYR A 47 PRO A 48 1 1.81 CISPEP 2 TYR A 47 PRO A 48 2 1.91 CISPEP 3 TYR A 47 PRO A 48 3 2.28 CISPEP 4 TYR A 47 PRO A 48 4 1.64 CISPEP 5 TYR A 47 PRO A 48 5 1.47 CISPEP 6 TYR A 47 PRO A 48 6 1.46 CISPEP 7 TYR A 47 PRO A 48 7 2.06 CISPEP 8 TYR A 47 PRO A 48 8 2.18 CISPEP 9 TYR A 47 PRO A 48 9 1.88 CISPEP 10 TYR A 47 PRO A 48 10 1.91 CISPEP 11 TYR A 47 PRO A 48 11 1.40 CISPEP 12 TYR A 47 PRO A 48 12 1.62 CISPEP 13 TYR A 47 PRO A 48 13 1.80 CISPEP 14 TYR A 47 PRO A 48 14 1.79 CISPEP 15 TYR A 47 PRO A 48 15 1.86 CISPEP 16 TYR A 47 PRO A 48 16 2.06 CISPEP 17 TYR A 47 PRO A 48 17 2.05 CISPEP 18 TYR A 47 PRO A 48 18 1.83 CISPEP 19 TYR A 47 PRO A 48 19 2.11 CISPEP 20 TYR A 47 PRO A 48 20 1.82 CISPEP 21 TYR A 47 PRO A 48 21 2.79 CISPEP 22 TYR A 47 PRO A 48 22 1.86 CISPEP 23 TYR A 47 PRO A 48 23 2.31 CISPEP 24 TYR A 47 PRO A 48 24 2.12 CISPEP 25 TYR A 47 PRO A 48 25 1.46 CISPEP 26 TYR A 47 PRO A 48 26 1.81 CISPEP 27 TYR A 47 PRO A 48 27 1.89 CISPEP 28 TYR A 47 PRO A 48 28 1.37 CISPEP 29 TYR A 47 PRO A 48 29 1.81 CISPEP 30 TYR A 47 PRO A 48 30 1.80

SITE 1 BNB 19 LEU A 26 PRO A 27 GLU A 28 TYR A 29 SITE 2 BNB 19 TYR A 30 GLY A 31 GLU A 32 ASN A 33 SITE 3 BNB 19 LEU A 34 ASP A 35 ALA A 36 LEU A 37 SITE 4 BNB 19 TRP A 38 ASP A 39 ALA A 40 LEU A 41 SITE 5 BNB 19 THR A 42 GLY A 43 TRP A 44

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