HEADER PROTEASE INHIBITOR 26-SEP-96 1REL OBSLTE 07-JUL-97 1REL 2REL TITLE NMR SOLUTION STRUCTURE OF R-ELAFIN, A SPECIFIC INHIBITOR OF TITLE 2 ELASTASE, 5 STRUCTURES COMPND MOL_ID: 1; COMPND 2 MOLECULE: R-ELAFIN; COMPND 3 CHAIN: NULL; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 EXPRESSION_SYSTEM: PLASMIDIC EXPRESSION SYSTEMS IN HOSTS SOURCE 5 SUCH AS ESCHERICHIA COLI AND YEAST; SOURCE 6 OTHER_DETAILS: THE POLYPEPTIDE MAY BE OBTAINED BY SOURCE 7 EXPRESSION USING PLASMIDIC EXPRESSION SYSTEMS IN HOSTS SOURCE 8 SUCH AS ESCHERICHIA COLI AND YEAST, THE POLYPEPTIDE BEING SOURCE 9 ALSO OBTAINABLE FROM PSORIATIC PLAQUES. PATENT NUMBER 5, SOURCE 10 464,822 DATE OF PATENT NOV. 7, 1995 BY CHRISTOPHERS E., SOURCE 11 WIEDOW O., SCHRODER J.M. THE PROTEIN WAS PROVIDED BY SOURCE 12 ZENECA PHARMACEUTICALS. KEYWDS PROTEASE INHIBITOR, R-ELAFIN, ELASTASE INHIBITOR EXPDTA NMR, 5 STRUCTURES AUTHOR C.FRANCART,M.DAUCHEZ,A.J.P.ALIX,G.LIPPENS REVDAT 1 11-JAN-97 1REL 0 JRNL AUTH C.FRANCART,M.DAUCHEZ,A.J.P.ALIX,G.LIPPENS JRNL TITL SOLUTION STRUCTURE OF R-ELAFIN, A SPECIFIC JRNL TITL 2 INHIBITOR OF ELASTASE JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.TSUNEMI,H.KATO,Y.NISHIUCHI,S.KUMAGAYE, REMARK 1 AUTH 2 S.SAKAKIBARA REMARK 1 TITL SYNTHESIS AND STRUCTURE-ACTIVITY RELATIONSHIPS OF REMARK 1 TITL 2 ELAFIN, AN ELASTASE-SPECIFIC INHIBITOR REMARK 1 REF BIOCHEM.BIOPHYS.RES.COMM. V. 185 967 1992 REMARK 1 REFN ASTM BBRCA9 US ISSN 0006-291X REMARK 1 REFERENCE 2 REMARK 1 AUTH O.WIEDOW,J.M.SCHRODER,H.GREGORY,J.A.YOUNG, REMARK 1 AUTH 2 E.CHRISTOPHERS REMARK 1 TITL ELAFIN: AN ELASTASE-SPECIFIC INHIBITOR OF HUMAN REMARK 1 TITL 2 SKIN REMARK 1 REF J.BIOL.CHEM. V. 265 14791 1990 REMARK 1 REFN ASTM JBCHA3 US ISSN 0021-9258 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER NUMBER OF NON-HYDROGEN ATOMS USED IN REMARK 3 REFINEMENT. PROTEIN ATOMS : 830 NUCLEIC ACID REMARK 3 ATOMS : 0 HETEROGEN ATOMS : 0 SOLVENT ATOMS : 0 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1REL COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998 REMARK 6 REMARK 6 BASED ON THE SEQUENCE AND STRUCTURE HOMOLOGIES BETWEEN REMARK 6 R-ELAFIN AND CSLPI AND OTHER EXPERIMENTAL DATA (RAMAN), REMARK 6 CONSTRAINTS ON THE SIDE CHAINS OF THE CYSTEINE RESIDUES REMARK 6 HAVE BEEN ADDED TO THE DIHEDRAL ANGLES CONSTRAINTS FILE. REMARK 6 STRUCTURES WERE GENERATED WITHIN THE X-PLOR PROGRAM. REMARK 6 AFTER THE INITIAL SUB-EMBED ALGORITHM, A SIMULATED REMARK 6 ANNEALING RUN WAS PERFORMED ON EVERY STRUCTURE, REMARK 6 CONSISTING OF A THOUSAND STEPS AT 2000K FOLLOWED BY A REMARK 6 COOLING DOWN DURING ANOTHER 1000 STEPS TO ROOM REMARK 6 TEMPERATURE. FINALLY THESE STRUCTURES WERE REFINED USING REMARK 6 A SIMULATED ANNEALING PROTOCOL WITH A STARTING REMARK 6 TEMPERATURE OF 1000K AND A TOTAL NUMBER OF 1000 STEPS REMARK 6 DURING COOLING. REMARK 7 REMARK 7 BASED ON THE HOMOLOGY BETWEEN R-ELAFIN AND CSLPI, AND REMARK 7 RECENT RESULTS OBTAINED FOR BPTI MUTANTS, THE BINDING REMARK 7 LOOP OF ELAFIN IS DEFINED AS THE SEGMENT 22 - 27, WITH THE REMARK 8 REMARK 8 SCISSILE PEPTIDE BOND BETWEEN ALA 24 AND MET 25. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 293 REMARK 210 PH : 7.0 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : NULL REMARK 210 SAMPLE CONTENTS : NULL REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : TOCSY, NOESY, DQFCOSY, 1H-13C REMARK 210 HSQC, 1H-13C HSQC-TOCSY, 1H- REMARK 210 13C HSQC-NOESY REMARK 210 SPECTROMETER FIELD STRENGTH : 600 MHZ REMARK 210 SPECTROMETER MODEL : DMX 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 : 100 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 5 REMARK 210 CONFORMERS, SELECTION CRITERIA : NOE AND DIHEDRAL ANGLES REMARK 210 VIOLATIONS, ENERGY 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 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 M RES CSSEQI PSI PHI REMARK 500 1 VAL 5 -88.78 51.90 REMARK 500 1 ILE 18 123.82 62.59 REMARK 500 1 LEU 20 -87.42 37.13 REMARK 500 2 ILE 21 92.85 118.01 REMARK 500 2 ALA 24 -87.44 45.75 REMARK 500 3 VAL 9 -94.97 65.67 REMARK 500 3 ILE 18 131.17 61.03 REMARK 500 3 ILE 21 -105.63 -153.67 REMARK 500 4 THR 36 -85.45 61.21 REMARK 500 4 CYS 38 162.44 56.56 REMARK 500 5 LYS 34 -110.33 65.33 REMARK 500 5 SER 48 -98.95 57.41 REMARK 750 REMARK 750 TURN REMARK 750 TURN_ID: UNIQUE, BETA-TURN OF THE CENTRAL BETA-HAIRPIN. REMARK 999 REMARK 999 SEQUENCE REMARK 999 1REL SWS P19957 1 - 60 NOT IN ATOMS LIST REMARK 999 REMARK 999 TSUNEMI ET AL., BIOCHEM. BIOPHYS. RES. COMMUN, 185, 967-9 REMARK 999 73. DBREF 1REL 1 57 UNP P19957 ELAF_HUMAN 61 117 SEQRES 1 57 ALA GLN GLU PRO VAL LYS GLY PRO VAL SER THR LYS PRO SEQRES 2 57 GLY SER CYS PRO ILE ILE LEU ILE ARG CYS ALA MET LEU SEQRES 3 57 ASN PRO PRO ASN ARG CYS LEU LYS ASP THR ASP CYS PRO SEQRES 4 57 GLY ILE LYS LYS CYS CYS GLU GLY SER CYS GLY MET ALA SEQRES 5 57 CYS PHE VAL PRO GLN SHEET 1 A 2 LYS 42 GLU 46 0 SHEET 2 A 2 MET 51 VAL 55 -1 N PHE 54 O LYS 43 SSBOND 1 CYS 16 CYS 45 SSBOND 2 CYS 23 CYS 49 SSBOND 3 CYS 32 CYS 44 SSBOND 4 CYS 38 CYS 53 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 MODEL 1