1CIR - Header Asymmetric Unit

HEADER SERINE PROTEASE INHIBITOR 02-OCT-95 1CIR

TITLE COMPLEX OF TWO FRAGMENTS OF CI2 [(1-40)(DOT)(41-64)]

COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHYMOTRYPSIN INHIBITOR 2; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CI2; COMPND 5 ENGINEERED: YES; COMPND 6 OTHER_DETAILS: CLEAVED BETWEEN RESIDUES 40 AND 41; COMPND 7 MOL_ID: 2; COMPND 8 MOLECULE: CHYMOTRYPSIN INHIBITOR 2; COMPND 9 CHAIN: B; COMPND 10 SYNONYM: CI2; COMPND 11 ENGINEERED: YES; COMPND 12 OTHER_DETAILS: CLEAVED BETWEEN RESIDUES 40 AND 41

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HORDEUM VULGARE; SOURCE 3 ORGANISM_TAXID: 4513; SOURCE 4 STRAIN: HIPROLY; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PTZ18U; SOURCE 8 MOL_ID: 2; SOURCE 9 ORGANISM_SCIENTIFIC: HORDEUM VULGARE; SOURCE 10 ORGANISM_TAXID: 4513; SOURCE 11 STRAIN: HIPROLY; SOURCE 12 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 13 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 14 EXPRESSION_SYSTEM_PLASMID: PTZ18U

KEYWDS SERINE PROTEASE INHIBITOR

EXPDTA SOLUTION NMR

NUMMDL 20

AUTHOR B.J.DAVIS,A.R.FERSHT

REVDAT 3 24-FEB-09 1CIR 1 VERSN REVDAT 2 01-APR-03 1CIR 1 JRNL REVDAT 1 29-JAN-96 1CIR 0

JRNL AUTH J.L.NEIRA,B.DAVIS,A.G.LADURNER,A.M.BUCKLE, JRNL AUTH 2 P.GAY GDE,A.R.FERSHT JRNL TITL TOWARDS THE COMPLETE STRUCTURAL CHARACTERIZATION JRNL TITL 2 OF A PROTEIN FOLDING PATHWAY: THE STRUCTURES OF JRNL TITL 3 THE DENATURED, TRANSITION AND NATIVE STATES FOR JRNL TITL 4 THE ASSOCIATION/FOLDING OF TWO COMPLEMENTARY JRNL TITL 5 FRAGMENTS OF CLEAVED CHYMOTRYPSIN INHIBITOR 2. JRNL TITL 6 DIRECT EVIDENCE FOR A NUCLEATION-CONDENSATION JRNL TITL 7 MECHANISM JRNL REF STRUCTURE FOLD.DES. V. 1 189 1996 JRNL REFN ISSN 0969-2126 JRNL PMID 9079381 JRNL DOI 10.1016/S1359-0278(96)00031-4

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH G.DE PRAT GAY,J.RUIZ-SANZ,B.DAVIS,A.R.FERSHT REMARK 1 TITL THE STRUCTURE OF THE TRANSITION STATE FOR THE REMARK 1 TITL 2 ASSOCIATION OF TWO FRAGMENTS OF THE BARLEY REMARK 1 TITL 3 CHYMOTRYPSIN INHIBITOR-2 TO GENERATE NATIVE-LIKE REMARK 1 TITL 4 PROTEIN: IMPLICATIONS FOR MECHANISMS OF PROTEIN REMARK 1 TITL 5 FOLDING REMARK 1 REF PROC.NATL.ACAD.SCI.USA V. 91 10943 1994 REMARK 1 REFN ISSN 0027-8424 REMARK 1 REFERENCE 2 REMARK 1 AUTH G.DE PRAT GAY,A.R.FERSHT REMARK 1 TITL GENERATION OF A FAMILY OF PROTEIN FRAGMENTS FOR REMARK 1 TITL 2 STRUCTURE-FOLDING STUDIES. 1. FOLDING REMARK 1 TITL 3 COMPLEMENTATION OF TWO FRAGMENTS OF CHYMOTRYPSIN REMARK 1 TITL 4 INHIBITOR-2 FORMED BY CLEAVAGE AT ITS UNIQUE REMARK 1 TITL 5 METHIONINE RESIDUE REMARK 1 REF BIOCHEMISTRY V. 33 7957 1994 REMARK 1 REFN ISSN 0006-2960

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 1CIR 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) : NULL REMARK 210 PH : NULL REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : NULL REMARK 210 SAMPLE CONTENTS : NULL REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : NULL REMARK 210 SPECTROMETER FIELD STRENGTH : NULL REMARK 210 SPECTROMETER MODEL : NULL REMARK 210 SPECTROMETER MANUFACTURER : NULL REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : NULL REMARK 210 METHOD USED : NULL REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : NULL REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : NULL REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL 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 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 465 SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 MODELS 1-20 REMARK 465 RES C SSSEQI REMARK 465 HSE A 40

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 GLU A 4 -30.76 -131.53 REMARK 500 1 LYS A 11 -144.28 -91.49 REMARK 500 1 GLU A 14 -75.52 -44.60 REMARK 500 1 ALA A 16 -80.66 -62.45 REMARK 500 1 LYS A 18 -81.20 -51.53 REMARK 500 1 LEU A 21 -23.82 -38.84 REMARK 500 1 GLN A 22 -81.22 -135.37 REMARK 500 1 ASP A 23 -94.82 37.77 REMARK 500 1 LYS A 24 -163.76 -58.48 REMARK 500 1 VAL A 34 -91.85 50.38 REMARK 500 1 THR A 36 -167.12 -76.15 REMARK 500 1 ILE A 37 65.33 -112.40 REMARK 500 1 VAL A 38 81.53 58.53 REMARK 500 1 TYR B 42 -148.12 -136.18 REMARK 500 1 ASP B 45 46.43 -107.66 REMARK 500 1 ARG B 48 87.95 -53.35 REMARK 500 1 ASP B 52 -151.34 -93.52 REMARK 500 1 ILE B 57 87.09 -31.94 REMARK 500 1 ARG B 62 -49.15 -140.58 REMARK 500 1 VAL B 63 -3.14 76.04 REMARK 500 2 LYS A 2 98.87 -52.81 REMARK 500 2 GLU A 4 -44.20 -148.45 REMARK 500 2 LYS A 11 -146.88 -94.54 REMARK 500 2 GLU A 14 -73.75 -44.07 REMARK 500 2 ALA A 16 -83.40 -61.39 REMARK 500 2 LYS A 18 -77.37 -44.57 REMARK 500 2 LYS A 24 -153.87 -68.23 REMARK 500 2 GLU A 26 52.33 -166.34 REMARK 500 2 TYR B 42 -148.72 -75.31 REMARK 500 2 ARG B 43 62.66 -104.59 REMARK 500 2 ILE B 44 160.13 -44.88 REMARK 500 2 ASP B 52 -154.30 -124.86 REMARK 500 2 LEU B 54 44.58 -99.58 REMARK 500 2 ILE B 57 86.98 -34.34 REMARK 500 3 GLU A 4 -57.75 -125.50 REMARK 500 3 TRP A 5 39.78 70.30 REMARK 500 3 LYS A 11 78.14 -154.30 REMARK 500 3 SER A 12 46.73 -153.18 REMARK 500 3 VAL A 13 -73.03 -77.28 REMARK 500 3 ALA A 16 -71.62 -62.69 REMARK 500 3 LYS A 18 -90.29 -62.17 REMARK 500 3 LEU A 21 -29.99 -35.13 REMARK 500 3 LYS A 24 -147.00 69.86 REMARK 500 3 GLU A 26 64.66 -161.06 REMARK 500 3 VAL A 34 -71.37 81.24 REMARK 500 3 THR A 36 120.68 -33.14 REMARK 500 3 VAL A 38 -175.80 -57.86 REMARK 500 3 TYR B 42 -145.39 -127.36 REMARK 500 3 ARG B 43 67.33 -114.91 REMARK 500 3 ASP B 45 43.05 -105.86 REMARK 500 3 ARG B 48 66.51 -101.59 REMARK 500 3 LEU B 49 89.94 -61.49 REMARK 500 3 ASP B 52 -162.84 -126.48 REMARK 500 3 LEU B 54 52.28 -95.38 REMARK 500 3 ILE B 57 89.00 -60.69 REMARK 500 4 TRP A 5 47.30 -150.78 REMARK 500 4 LYS A 11 -144.59 -96.12 REMARK 500 4 GLU A 14 -72.10 -43.80 REMARK 500 4 ALA A 16 -84.10 -63.44 REMARK 500 4 LYS A 18 -82.10 -55.98 REMARK 500 4 GLN A 22 54.58 -143.61 REMARK 500 4 LYS A 24 -83.45 -130.72 REMARK 500 4 PRO A 25 -84.93 -88.68 REMARK 500 4 GLU A 26 56.30 -162.06 REMARK 500 4 VAL A 34 -70.04 77.33 REMARK 500 4 THR A 36 -91.73 -46.15 REMARK 500 4 ILE A 37 87.50 40.44 REMARK 500 4 VAL A 38 -99.80 71.00 REMARK 500 4 TYR B 42 -157.92 -59.15 REMARK 500 4 ASP B 45 48.30 -89.62 REMARK 500 4 ASP B 52 -151.72 -107.89 REMARK 500 4 LEU B 54 38.19 -98.99 REMARK 500 4 ILE B 57 87.68 -46.88 REMARK 500 5 LYS A 11 -145.63 -91.10 REMARK 500 5 GLU A 14 -74.06 -43.05 REMARK 500 5 ALA A 16 -80.87 -59.44 REMARK 500 5 LYS A 18 -85.09 -58.86 REMARK 500 5 GLN A 22 40.88 -140.38 REMARK 500 5 LYS A 24 -78.69 -130.75 REMARK 500 5 PRO A 25 -80.79 -87.57 REMARK 500 5 GLU A 26 62.08 -161.96 REMARK 500 5 VAL A 34 -93.14 44.16 REMARK 500 5 TYR B 42 -158.13 -121.43 REMARK 500 5 ARG B 43 57.02 -91.60 REMARK 500 5 ASP B 45 48.67 -102.10 REMARK 500 5 ASP B 52 -153.04 -94.66 REMARK 500 5 LEU B 54 39.69 -95.83 REMARK 500 5 ILE B 57 87.72 -39.68 REMARK 500 6 LYS A 11 -142.56 -93.55 REMARK 500 6 GLU A 14 -73.88 -44.84 REMARK 500 6 ALA A 16 -85.25 -62.82 REMARK 500 6 LYS A 18 -76.13 -42.37 REMARK 500 6 ILE A 20 -34.72 -37.98 REMARK 500 6 LYS A 24 -105.77 -101.05 REMARK 500 6 PRO A 25 -70.98 -80.16 REMARK 500 6 GLU A 26 70.20 -162.76 REMARK 500 6 PRO A 33 -93.67 -78.90 REMARK 500 6 VAL A 34 -35.07 -171.94 REMARK 500 6 THR A 36 104.20 -48.65 REMARK 500 6 ILE A 37 -94.10 50.16 REMARK 500 6 TYR B 42 -153.53 -100.58 REMARK 500 6 ARG B 43 66.83 -109.57 REMARK 500 6 ASP B 45 44.43 -102.39 REMARK 500 6 VAL B 51 -151.57 -107.21 REMARK 500 6 ASP B 52 -157.47 -141.92 REMARK 500 6 LEU B 54 42.82 -96.20 REMARK 500 6 ILE B 57 89.17 -42.06 REMARK 500 7 LYS A 11 -145.43 -94.65 REMARK 500 7 GLU A 14 -75.28 -44.41 REMARK 500 7 ALA A 16 -85.16 -62.58 REMARK 500 7 LYS A 18 -77.95 -56.78 REMARK 500 7 LEU A 21 -35.84 -36.04 REMARK 500 7 GLN A 22 56.87 -141.91 REMARK 500 7 LYS A 24 -97.85 -133.84 REMARK 500 7 GLU A 26 72.26 -163.84 REMARK 500 7 PRO A 33 -96.58 -75.58 REMARK 500 7 VAL A 34 13.55 -158.98 REMARK 500 7 VAL A 38 -97.04 39.80 REMARK 500 7 ASP B 45 38.65 -90.13 REMARK 500 7 LEU B 54 38.08 -88.96 REMARK 500 7 ILE B 57 91.32 -51.90 REMARK 500 8 LYS A 2 87.70 -50.60 REMARK 500 8 TRP A 5 46.75 -145.61 REMARK 500 8 LYS A 11 -154.78 -93.55 REMARK 500 8 GLU A 14 -71.07 -41.88 REMARK 500 8 ALA A 16 -81.36 -62.21 REMARK 500 8 LYS A 18 -84.96 -62.33 REMARK 500 8 LEU A 21 -33.97 -35.66 REMARK 500 8 GLN A 22 50.25 -150.48 REMARK 500 8 LYS A 24 -92.38 -102.38 REMARK 500 8 PRO A 25 -74.14 -87.05 REMARK 500 8 GLU A 26 56.94 -162.47 REMARK 500 8 PRO A 33 42.22 -81.27 REMARK 500 8 VAL A 34 100.86 42.23 REMARK 500 8 THR A 36 -78.65 -69.39 REMARK 500 8 ILE A 37 122.46 86.33 REMARK 500 8 VAL A 38 106.87 57.23 REMARK 500 8 TYR B 42 -158.85 -129.53 REMARK 500 8 ASP B 45 44.57 -103.41 REMARK 500 8 ARG B 48 79.80 -111.89 REMARK 500 8 LEU B 49 94.74 -62.18 REMARK 500 8 ASP B 52 -151.07 -116.24 REMARK 500 8 LEU B 54 44.60 -100.07 REMARK 500 8 ILE B 57 86.79 -30.06 REMARK 500 9 TRP A 5 45.05 -150.10 REMARK 500 9 LYS A 11 -143.50 -95.76 REMARK 500 9 GLU A 14 -75.75 -42.52 REMARK 500 9 ALA A 16 -85.20 -62.18 REMARK 500 9 LYS A 18 -83.35 -56.41 REMARK 500 9 LYS A 24 -116.05 -94.60 REMARK 500 9 GLU A 26 60.45 -161.29 REMARK 500 9 VAL A 34 -71.72 81.34 REMARK 500 9 TYR B 42 157.22 61.80 REMARK 500 9 ASP B 45 45.75 -95.35 REMARK 500 9 ARG B 48 69.05 -112.15 REMARK 500 9 LEU B 49 94.18 -56.49 REMARK 500 9 ASP B 52 -154.76 -126.91 REMARK 500 9 LEU B 54 44.07 -98.48 REMARK 500 9 ILE B 57 91.65 -44.27 REMARK 500 10 LYS A 2 99.14 -67.14 REMARK 500 10 THR A 3 -41.12 -140.98 REMARK 500 10 LYS A 11 -149.44 -93.41 REMARK 500 10 ALA A 16 -82.85 -62.11 REMARK 500 10 LYS A 18 -78.18 -47.48 REMARK 500 10 ILE A 20 -34.82 -39.53 REMARK 500 10 ASP A 23 -92.81 38.78 REMARK 500 10 LYS A 24 -131.72 -64.27 REMARK 500 10 GLU A 26 70.49 -162.17 REMARK 500 10 ILE A 37 -87.49 -117.03 REMARK 500 10 TYR B 42 -110.14 -71.18 REMARK 500 10 ASP B 45 47.01 -102.51 REMARK 500 10 LEU B 49 90.11 -60.79 REMARK 500 10 ASP B 52 -154.95 -109.22 REMARK 500 10 LEU B 54 42.90 -95.88 REMARK 500 10 ILE B 57 90.77 -39.61 REMARK 500 11 TRP A 5 46.00 -141.09 REMARK 500 11 VAL A 9 154.14 -48.81 REMARK 500 11 LYS A 11 -143.70 -93.69 REMARK 500 11 ALA A 16 -84.05 -64.90 REMARK 500 11 LYS A 18 -75.53 -55.02 REMARK 500 11 LEU A 21 -28.08 -39.40 REMARK 500 11 GLN A 22 26.82 -149.90 REMARK 500 11 LYS A 24 -117.58 -80.47 REMARK 500 11 GLU A 26 60.97 -159.97 REMARK 500 11 VAL A 34 -90.90 45.75 REMARK 500 11 THR A 36 -148.02 -94.31 REMARK 500 11 ILE A 37 -172.57 -59.76 REMARK 500 11 TYR B 42 -162.58 -127.51 REMARK 500 11 ASP B 52 -146.43 -116.70 REMARK 500 11 ASP B 55 47.87 91.43 REMARK 500 11 ILE B 57 88.27 -37.28 REMARK 500 12 LYS A 2 34.64 -90.94 REMARK 500 12 LYS A 11 -141.26 -93.92 REMARK 500 12 GLU A 14 -77.94 -45.87 REMARK 500 12 ALA A 16 -85.44 -62.02 REMARK 500 12 LYS A 18 -82.13 -57.60 REMARK 500 12 LEU A 21 -29.76 -36.88 REMARK 500 12 GLN A 22 52.53 -148.74 REMARK 500 12 PRO A 25 -82.10 -91.25 REMARK 500 12 GLU A 26 65.46 -161.45 REMARK 500 12 PRO A 33 25.18 -77.93 REMARK 500 12 VAL A 34 -11.78 79.72 REMARK 500 12 THR A 36 169.83 -45.91 REMARK 500 12 TYR B 42 -147.40 -111.16 REMARK 500 12 ARG B 43 55.91 -107.03 REMARK 500 12 ASP B 45 44.86 -99.40 REMARK 500 12 ASP B 52 -168.13 -129.72 REMARK 500 12 LEU B 54 47.20 -89.96 REMARK 500 12 ILE B 57 91.36 -42.79 REMARK 500 13 LYS A 2 43.22 -90.01 REMARK 500 13 LYS A 11 -154.71 -99.63 REMARK 500 13 ALA A 16 -82.18 -67.54 REMARK 500 13 LYS A 18 -72.10 -49.92 REMARK 500 13 LYS A 24 -106.62 -107.24 REMARK 500 13 GLU A 26 64.09 -162.02 REMARK 500 13 VAL A 34 -96.71 41.34 REMARK 500 13 THR A 36 86.68 -36.74 REMARK 500 13 ILE A 37 74.78 33.36 REMARK 500 13 VAL A 38 -68.11 -95.30 REMARK 500 13 TYR B 42 -158.63 -57.32 REMARK 500 13 ASP B 52 -154.80 -120.00 REMARK 500 13 LEU B 54 41.87 -97.12 REMARK 500 13 ILE B 57 89.59 -37.45 REMARK 500 14 LYS A 11 -151.76 -96.16 REMARK 500 14 GLU A 14 -74.76 -44.05 REMARK 500 14 ALA A 16 -83.15 -59.02 REMARK 500 14 LYS A 18 -83.82 -63.35 REMARK 500 14 LEU A 21 -36.45 -34.98 REMARK 500 14 GLN A 22 41.40 -147.36 REMARK 500 14 LYS A 24 -88.49 -120.71 REMARK 500 14 PRO A 25 -81.47 -84.07 REMARK 500 14 GLU A 26 57.83 -158.79 REMARK 500 14 PRO A 33 21.99 -79.75 REMARK 500 14 VAL A 34 -6.35 78.52 REMARK 500 14 THR A 36 93.97 -69.55 REMARK 500 14 ILE A 37 24.21 -157.77 REMARK 500 14 TYR B 42 -154.82 -118.65 REMARK 500 14 ASP B 45 45.64 -97.12 REMARK 500 14 ASP B 52 -158.71 -135.94 REMARK 500 14 LEU B 54 52.81 -97.23 REMARK 500 14 ILE B 57 88.74 -35.51 REMARK 500 14 ARG B 62 -43.98 -138.97 REMARK 500 14 VAL B 63 -4.68 77.59 REMARK 500 15 LYS A 11 -141.81 -96.51 REMARK 500 15 GLU A 14 -75.41 -45.46 REMARK 500 15 ALA A 16 -88.04 -64.88 REMARK 500 15 LYS A 18 -82.89 -61.81 REMARK 500 15 LEU A 21 -33.24 -37.74 REMARK 500 15 GLN A 22 50.47 -149.51 REMARK 500 15 LYS A 24 -88.53 -124.01 REMARK 500 15 PRO A 25 -79.66 -81.34 REMARK 500 15 GLU A 26 66.00 -160.99 REMARK 500 15 PRO A 33 45.67 -81.18 REMARK 500 15 VAL A 34 -90.37 59.87 REMARK 500 15 VAL A 38 -153.64 -96.43 REMARK 500 15 TYR B 42 -123.03 -98.72 REMARK 500 15 ASP B 52 -149.72 -126.28 REMARK 500 15 ASP B 55 48.97 91.71 REMARK 500 15 ILE B 57 88.93 -54.97 REMARK 500 16 TRP A 5 48.85 -161.65 REMARK 500 16 LYS A 11 -143.87 -106.89 REMARK 500 16 GLU A 14 -71.29 -45.27 REMARK 500 16 ALA A 16 -79.36 -57.87 REMARK 500 16 LYS A 18 -82.50 -56.31 REMARK 500 16 LEU A 21 -32.20 -35.45 REMARK 500 16 GLN A 22 56.88 -145.77 REMARK 500 16 LYS A 24 -80.95 -110.07 REMARK 500 16 PRO A 25 -71.87 -87.92 REMARK 500 16 GLU A 26 62.30 -165.02 REMARK 500 16 PRO A 33 -85.18 -74.03 REMARK 500 16 VAL A 34 -34.67 -175.13 REMARK 500 16 TYR B 42 -122.29 -98.49 REMARK 500 16 ASP B 45 45.32 -93.19 REMARK 500 16 PHE B 50 -159.86 -66.05 REMARK 500 16 ASP B 52 -153.14 -122.66 REMARK 500 16 LEU B 54 48.11 -96.09 REMARK 500 16 ILE B 57 86.94 -32.41 REMARK 500 17 LYS A 2 48.21 -89.98 REMARK 500 17 GLU A 4 -40.58 -135.33 REMARK 500 17 LYS A 11 -145.36 -93.13 REMARK 500 17 GLU A 14 -74.46 -47.02 REMARK 500 17 ALA A 16 -81.12 -66.60 REMARK 500 17 LYS A 18 -81.44 -63.46 REMARK 500 17 LEU A 21 -37.74 -29.56 REMARK 500 17 GLN A 22 -72.67 -133.43 REMARK 500 17 ASP A 23 -94.84 42.48 REMARK 500 17 LYS A 24 -118.14 -66.62 REMARK 500 17 PRO A 25 -75.53 -79.77 REMARK 500 17 GLU A 26 59.88 -156.84 REMARK 500 17 PRO A 33 -94.84 -75.91 REMARK 500 17 VAL A 34 103.94 -164.74 REMARK 500 17 TYR B 42 -151.72 40.66 REMARK 500 17 ASP B 45 45.70 -106.34 REMARK 500 17 ARG B 48 72.25 -119.40 REMARK 500 17 LEU B 49 97.74 -69.21 REMARK 500 17 ASP B 52 -71.90 -127.44 REMARK 500 17 LYS B 53 -75.21 -93.21 REMARK 500 17 ASP B 55 23.00 91.33 REMARK 500 17 ILE B 57 89.03 -38.49 REMARK 500 18 LYS A 2 45.90 -90.00 REMARK 500 18 LYS A 11 -143.52 -94.56 REMARK 500 18 GLU A 14 -71.64 -41.38 REMARK 500 18 ALA A 16 -83.85 -58.72 REMARK 500 18 LYS A 18 -86.24 -61.35 REMARK 500 18 LEU A 21 -23.41 -39.25 REMARK 500 18 GLN A 22 13.33 -142.10 REMARK 500 18 ASP A 23 150.72 -49.29 REMARK 500 18 LYS A 24 -131.03 52.81 REMARK 500 18 PRO A 25 -83.03 -78.17 REMARK 500 18 PRO A 33 34.87 -81.77 REMARK 500 18 VAL A 34 3.31 56.91 REMARK 500 18 TYR B 42 -140.63 -124.98 REMARK 500 18 ASP B 45 48.34 -98.92 REMARK 500 18 ARG B 48 71.02 -118.17 REMARK 500 18 LEU B 49 103.09 -54.61 REMARK 500 18 ASP B 52 -161.97 -129.16 REMARK 500 18 LEU B 54 48.98 -89.57 REMARK 500 18 ILE B 57 90.55 -59.46 REMARK 500 19 LYS A 2 45.61 -86.05 REMARK 500 19 THR A 3 33.94 -89.65 REMARK 500 19 GLU A 4 -47.73 -135.42 REMARK 500 19 LYS A 11 -138.93 -99.78 REMARK 500 19 GLU A 14 -74.27 -48.91 REMARK 500 19 ALA A 16 -86.74 -61.08 REMARK 500 19 LYS A 18 -78.82 -49.46 REMARK 500 19 LYS A 24 -99.51 -117.42 REMARK 500 19 PRO A 25 -76.14 -82.15 REMARK 500 19 GLU A 26 56.35 -160.77 REMARK 500 19 PRO A 33 35.50 -78.63 REMARK 500 19 VAL A 34 -78.80 73.47 REMARK 500 19 THR A 36 39.22 -88.69 REMARK 500 19 ILE A 37 144.69 65.95 REMARK 500 19 TYR B 42 -152.22 -131.63 REMARK 500 19 ARG B 43 52.94 -92.72 REMARK 500 19 ASP B 45 46.44 -106.10 REMARK 500 19 PHE B 50 -162.88 -66.98 REMARK 500 19 ASP B 52 -70.61 -112.37 REMARK 500 19 LYS B 53 -75.91 -92.50 REMARK 500 19 ASP B 55 24.13 91.51 REMARK 500 19 ILE B 57 89.03 -37.33 REMARK 500 20 LYS A 11 -147.11 -95.44 REMARK 500 20 GLU A 14 -76.90 -44.81 REMARK 500 20 ALA A 16 -83.46 -63.46 REMARK 500 20 LYS A 18 -86.28 -67.46 REMARK 500 20 LEU A 21 -25.82 -39.15 REMARK 500 20 GLN A 22 -67.99 -144.30 REMARK 500 20 ASP A 23 -94.51 39.54 REMARK 500 20 LYS A 24 -118.95 -64.89 REMARK 500 20 PRO A 25 -73.21 -80.56 REMARK 500 20 GLU A 26 60.63 -159.29 REMARK 500 20 PRO A 33 39.97 -80.73 REMARK 500 20 VAL A 34 -92.12 50.06 REMARK 500 20 THR A 36 -101.03 -91.20 REMARK 500 20 ILE A 37 173.24 67.95 REMARK 500 20 VAL A 38 -7.14 78.86 REMARK 500 20 TYR B 42 -155.72 -120.87 REMARK 500 20 ASP B 45 50.21 -96.54 REMARK 500 20 ASP B 52 -148.89 -126.77 REMARK 500 20 ILE B 57 88.62 -40.67 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 B 43 0.22 SIDE_CHAIN REMARK 500 1 ARG B 46 0.28 SIDE_CHAIN REMARK 500 1 ARG B 48 0.32 SIDE_CHAIN REMARK 500 1 ARG B 62 0.32 SIDE_CHAIN REMARK 500 2 ARG B 43 0.26 SIDE_CHAIN REMARK 500 2 ARG B 46 0.31 SIDE_CHAIN REMARK 500 2 ARG B 48 0.32 SIDE_CHAIN REMARK 500 2 ARG B 62 0.32 SIDE_CHAIN REMARK 500 3 ARG B 43 0.31 SIDE_CHAIN REMARK 500 3 ARG B 46 0.23 SIDE_CHAIN REMARK 500 3 ARG B 48 0.24 SIDE_CHAIN REMARK 500 3 ARG B 62 0.24 SIDE_CHAIN REMARK 500 4 ARG B 43 0.22 SIDE_CHAIN REMARK 500 4 ARG B 46 0.31 SIDE_CHAIN REMARK 500 4 ARG B 48 0.31 SIDE_CHAIN REMARK 500 4 ARG B 62 0.22 SIDE_CHAIN REMARK 500 5 ARG B 43 0.19 SIDE_CHAIN REMARK 500 5 ARG B 46 0.23 SIDE_CHAIN REMARK 500 5 ARG B 62 0.32 SIDE_CHAIN REMARK 500 6 ARG B 43 0.20 SIDE_CHAIN REMARK 500 6 ARG B 46 0.14 SIDE_CHAIN REMARK 500 6 ARG B 48 0.12 SIDE_CHAIN REMARK 500 6 ARG B 62 0.20 SIDE_CHAIN REMARK 500 7 ARG B 43 0.31 SIDE_CHAIN REMARK 500 7 ARG B 46 0.28 SIDE_CHAIN REMARK 500 7 ARG B 48 0.29 SIDE_CHAIN REMARK 500 7 ARG B 62 0.19 SIDE_CHAIN REMARK 500 8 ARG B 43 0.23 SIDE_CHAIN REMARK 500 8 ARG B 46 0.14 SIDE_CHAIN REMARK 500 8 ARG B 48 0.30 SIDE_CHAIN REMARK 500 9 ARG B 43 0.30 SIDE_CHAIN REMARK 500 9 ARG B 46 0.26 SIDE_CHAIN REMARK 500 9 ARG B 48 0.32 SIDE_CHAIN REMARK 500 9 ARG B 62 0.29 SIDE_CHAIN REMARK 500 10 ARG B 43 0.31 SIDE_CHAIN REMARK 500 10 ARG B 46 0.11 SIDE_CHAIN REMARK 500 10 ARG B 48 0.32 SIDE_CHAIN REMARK 500 10 ARG B 62 0.29 SIDE_CHAIN REMARK 500 11 ARG B 43 0.27 SIDE_CHAIN REMARK 500 11 ARG B 46 0.12 SIDE_CHAIN REMARK 500 11 ARG B 48 0.17 SIDE_CHAIN REMARK 500 11 ARG B 62 0.17 SIDE_CHAIN REMARK 500 12 ARG B 43 0.19 SIDE_CHAIN REMARK 500 12 ARG B 46 0.23 SIDE_CHAIN REMARK 500 12 ARG B 48 0.31 SIDE_CHAIN REMARK 500 13 ARG B 43 0.28 SIDE_CHAIN REMARK 500 13 ARG B 46 0.19 SIDE_CHAIN REMARK 500 13 ARG B 48 0.29 SIDE_CHAIN REMARK 500 13 ARG B 62 0.30 SIDE_CHAIN REMARK 500 14 ARG B 43 0.26 SIDE_CHAIN REMARK 500 14 ARG B 46 0.22 SIDE_CHAIN REMARK 500 14 ARG B 48 0.21 SIDE_CHAIN REMARK 500 14 ARG B 62 0.28 SIDE_CHAIN REMARK 500 15 ARG B 43 0.32 SIDE_CHAIN REMARK 500 15 ARG B 48 0.22 SIDE_CHAIN REMARK 500 15 ARG B 62 0.19 SIDE_CHAIN REMARK 500 16 ARG B 43 0.10 SIDE_CHAIN REMARK 500 16 ARG B 46 0.11 SIDE_CHAIN REMARK 500 16 ARG B 48 0.28 SIDE_CHAIN REMARK 500 16 ARG B 62 0.21 SIDE_CHAIN REMARK 500 17 ARG B 43 0.31 SIDE_CHAIN REMARK 500 17 ARG B 46 0.32 SIDE_CHAIN REMARK 500 17 ARG B 48 0.18 SIDE_CHAIN REMARK 500 17 ARG B 62 0.32 SIDE_CHAIN REMARK 500 18 ARG B 43 0.21 SIDE_CHAIN REMARK 500 18 ARG B 46 0.19 SIDE_CHAIN REMARK 500 18 ARG B 48 0.32 SIDE_CHAIN REMARK 500 18 ARG B 62 0.31 SIDE_CHAIN REMARK 500 19 ARG B 43 0.28 SIDE_CHAIN REMARK 500 19 ARG B 46 0.17 SIDE_CHAIN REMARK 500 19 ARG B 48 0.28 SIDE_CHAIN REMARK 500 19 ARG B 62 0.32 SIDE_CHAIN REMARK 500 20 ARG B 43 0.21 SIDE_CHAIN REMARK 500 20 ARG B 46 0.30 SIDE_CHAIN REMARK 500 20 ARG B 48 0.30 SIDE_CHAIN REMARK 500 20 ARG B 62 0.27 SIDE_CHAIN REMARK 500 REMARK 500 REMARK: NULL

DBREF 1CIR A 2 39 UNP P01053 ICI2_HORVU 21 58 DBREF 1CIR B 41 64 UNP P01053 ICI2_HORVU 60 83

SEQRES 1 A 40 MET LYS THR GLU TRP PRO GLU LEU VAL GLY LYS SER VAL SEQRES 2 A 40 GLU GLU ALA LYS LYS VAL ILE LEU GLN ASP LYS PRO GLU SEQRES 3 A 40 ALA GLN ILE ILE VAL LEU PRO VAL GLY THR ILE VAL THR SEQRES 4 A 40 HSE SEQRES 1 B 24 GLU TYR ARG ILE ASP ARG VAL ARG LEU PHE VAL ASP LYS SEQRES 2 B 24 LEU ASP ASN ILE ALA GLN VAL PRO ARG VAL GLY

HELIX 1 1 PRO A 6 LEU A 8 5 3 HELIX 2 2 VAL A 13 ILE A 20 1 8

SHEET 1 A 2 ILE A 30 LEU A 32 0 SHEET 2 A 2 ARG B 48 PHE B 50 1 N LEU B 49 O ILE A 30

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