HEADER PROTEINASE INHIBITOR(TRYPSIN) 20-MAY-94 1ATB TITLE HIGH-RESOLUTION STRUCTURE OF ASCARIS TRYPSIN INHIBITOR IN SOLUTION: TITLE 2 DIRECT EVIDENCE FOR A PH INDUCED CONFORMATIONAL TRANSITION IN THE TITLE 3 REACTIVE SITE COMPND MOL_ID: 1; COMPND 2 MOLECULE: ASCARIS TRYPSIN INHIBITOR; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ASCARIS SUUM; SOURCE 3 ORGANISM_COMMON: PIG ROUNDWORM; SOURCE 4 ORGANISM_TAXID: 6253 KEYWDS PROTEINASE INHIBITOR(TRYPSIN) EXPDTA SOLUTION NMR AUTHOR G.M.CLORE,B.L.GRASBERGER,A.M.GRONENBORN REVDAT 3 16-FEB-22 1ATB 1 REMARK REVDAT 2 24-FEB-09 1ATB 1 VERSN REVDAT 1 31-AUG-94 1ATB 0 JRNL AUTH B.L.GRASBERGER,G.M.CLORE,A.M.GRONENBORN JRNL TITL HIGH-RESOLUTION STRUCTURE OF ASCARIS TRYPSIN INHIBITOR IN JRNL TITL 2 SOLUTION: DIRECT EVIDENCE FOR A PH-INDUCED CONFORMATIONAL JRNL TITL 3 TRANSITION IN THE REACTIVE SITE. JRNL REF STRUCTURE V. 2 669 1994 JRNL REFN ISSN 0969-2126 JRNL PMID 7922043 JRNL DOI 10.1016/S0969-2126(00)00067-8 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.M.GRONENBORN,M.NILGES,R.J.PEANASKY,G.M.CLORE REMARK 1 TITL SEQUENTIAL RESONANCE ASSIGNMENT AND SECONDARY STRUCTURE REMARK 1 TITL 2 DETERMINATION OF THE ASCARIS TRYPSIN INHIBITOR, A MEMBER OF REMARK 1 TITL 3 A NOVEL CLASS OF PROTEINASE INHIBITORS REMARK 1 REF BIOCHEMISTRY V. 29 183 1990 REMARK 1 REFN ISSN 0006-2960 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : NULL REMARK 3 AUTHORS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 THE 3D STRUCTURE OF THE PH 2.4 FORM OF THE ASCARIS TRYPSIN REMARK 3 INHIBITOR IN SOLUTION BY NMR IS BASED ON 1083 EXPERIMENTAL REMARK 3 RESTRAINTS COMPRISING: 49 SHORT RANGE (1 < |I-J| <=5) AND REMARK 3 216 LONG RANGE (|I-J|>5) INTERRESIDUE INTERPROTON REMARK 3 DISTANCE RESTRAINTS, 323 INTRARESIDUE INTERPROTON DISTANCE REMARK 3 RESTRAINTS, 46 DISTANCE RESTRAINTS FOR 3 HYDROGEN BONDS, REMARK 3 AND 59 PHI, 49 PSI AND 41 CHI1 TORSION ANGLE RESTRAINTS. A REMARK 3 COMPLETE LIST OF EXPERIMENTAL RESTRAINTS HAS BEEN REMARK 3 DEPOSITED WITH THE BROOKHAVEN DATA BANK. REMARK 3 REMARK 3 THE STRUCTURES ARE CALCULATED USING THE HYBRID METRIC REMARK 3 MATRIX DISTANCE GEOMETRY-DYNAMICAL SIMULATED ANNEALING REMARK 3 METHOD DESCRIBED BY: NILGES, M., CLORE, G.M. & REMARK 3 GRONENBORN, A.M. (1988) FEBS LETT 29, 317-324 ALL REMARK 3 STRUCTURAL STATISTICS ARE GIVEN IN REFERENCE 1. REMARK 3 REMARK 3 THIS ENTRY PRESENTS THE RESTRAINED MINIMIZED AVERAGE REMARK 3 STRUCTURE (SA)R. THIS IS OBTAINED BY FIRST AVERAGING THE REMARK 3 COORDINATES OF THE INDIVIDUAL 32 DYNAMICAL SIMULATED REMARK 3 ANNEALING SA STRUCTURES BEST FITTED TO RESIDUES 5 - 60, AND REMARK 3 SUBJECTING THE RESULTING COORDINATES TO RESTRAINED REMARK 3 MINIMIZATION. COLUMNS 61 - 66 IN THIS SET OF COORDINATES REMARK 3 (THE B VALUE FIELD IN X-RAY STRUCTURES) GIVES THE AVERAGE REMARK 3 RMS DIFFERENCE BETWEEN THE INDIVIDUAL SA STRUCTURES AND THE REMARK 3 MEAN STRUCTURE. THE QUANTITIES IN THIS FIELD OF THE REMARK 3 INDIVIDUAL STRUCTURES HAVE NO MEANING. THE INDIVIDUAL REMARK 3 STRUCTURES ARE PRESENTED IN PROTEIN DATA BANK ENTRY 1ATE. REMARK 4 REMARK 4 1ATB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000171231. 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 : 1 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 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 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: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 TRP A 12 CG TRP A 12 CD2 -0.120 REMARK 500 REMARK 500 REMARK: NULL 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 TRP A 12 CG - CD1 - NE1 ANGL. DEV. = -6.6 DEGREES REMARK 500 TRP A 12 NE1 - CE2 - CZ2 ANGL. DEV. = 9.0 DEGREES REMARK 500 TRP A 12 NE1 - CE2 - CD2 ANGL. DEV. = -6.9 DEGREES REMARK 500 ARG A 31 CG - CD - NE ANGL. DEV. = 17.2 DEGREES REMARK 500 LYS A 56 CD - CE - NZ ANGL. DEV. = -29.8 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 PRO A 8 -179.56 -60.32 REMARK 500 ASN A 9 -78.62 57.31 REMARK 500 GLU A 10 102.26 -46.77 REMARK 500 GLU A 19 -146.49 -165.12 REMARK 500 THR A 30 -152.23 -88.52 REMARK 500 ARG A 31 36.90 -73.68 REMARK 500 GLU A 32 69.21 -103.81 REMARK 500 GLU A 39 -172.28 -175.23 REMARK 500 LYS A 56 160.34 -46.61 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1ATE RELATED DB: PDB DBREF 1ATB A 1 62 UNP P19398 ITR1_ASCSU 1 62 SEQRES 1 A 62 GLU ALA GLU LYS CYS THR LYS PRO ASN GLU GLN TRP THR SEQRES 2 A 62 LYS CYS GLY GLY CYS GLU GLY THR CYS ALA GLN LYS ILE SEQRES 3 A 62 VAL PRO CYS THR ARG GLU CYS LYS PRO PRO ARG CYS GLU SEQRES 4 A 62 CYS ILE ALA SER ALA GLY PHE VAL ARG ASP ALA GLN GLY SEQRES 5 A 62 ASN CYS ILE LYS PHE GLU ASP CYS PRO LYS SHEET 1 A 2 GLN A 11 THR A 13 0 SHEET 2 A 2 ARG A 37 GLU A 39 -1 N ARG A 37 O THR A 13 SHEET 1 B 2 PHE A 46 ASP A 49 0 SHEET 2 B 2 ASN A 53 LYS A 56 -1 O ASN A 53 N ASP A 49 SSBOND 1 CYS A 5 CYS A 38 1555 1555 2.02 SSBOND 2 CYS A 15 CYS A 33 1555 1555 2.02 SSBOND 3 CYS A 18 CYS A 29 1555 1555 2.02 SSBOND 4 CYS A 22 CYS A 60 1555 1555 2.02 SSBOND 5 CYS A 40 CYS A 54 1555 1555 2.02 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