HEADER HYDROLASE/HYDROLASE INHIBITOR 24-OCT-92 1MCT TITLE THE REFINED 1.6 ANGSTROMS RESOLUTION CRYSTAL STRUCTURE OF THE COMPLEX TITLE 2 FORMED BETWEEN PORCINE BETA-TRYPSIN AND MCTI-A, A TRYPSIN INHIBITOR TITLE 3 OF SQUASH FAMILY COMPND MOL_ID: 1; COMPND 2 MOLECULE: BETA-TRYPSIN; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.4; COMPND 5 ENGINEERED: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: TRYPSIN INHIBITOR A; COMPND 8 CHAIN: I; COMPND 9 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SUS SCROFA; SOURCE 3 ORGANISM_COMMON: PIG; SOURCE 4 ORGANISM_TAXID: 9823; SOURCE 5 ORGAN: SEED; SOURCE 6 MOL_ID: 2; SOURCE 7 ORGANISM_SCIENTIFIC: MOMORDICA CHARANTIA; SOURCE 8 ORGANISM_COMMON: BALSAM PEAR; SOURCE 9 ORGANISM_TAXID: 3673; SOURCE 10 ORGAN: SEED KEYWDS HYDROLASE-HYDROLASE INHIBITOR COMPLEX, PROTEINASE EXPDTA X-RAY DIFFRACTION AUTHOR Q.HUANG,S.LIU,Y.TANG REVDAT 5 30-OCT-24 1MCT 1 REMARK SEQADV SHEET LINK REVDAT 4 24-FEB-09 1MCT 1 VERSN REVDAT 3 01-APR-03 1MCT 1 JRNL REVDAT 2 15-JAN-94 1MCT 3 CRYST1 SCALE REVDAT 1 31-JAN-94 1MCT 0 JRNL AUTH Q.HUANG,S.LIU,Y.TANG JRNL TITL REFINED 1.6 A RESOLUTION CRYSTAL STRUCTURE OF THE COMPLEX JRNL TITL 2 FORMED BETWEEN PORCINE BETA-TRYPSIN AND MCTI-A, A TRYPSIN JRNL TITL 3 INHIBITOR OF THE SQUASH FAMILY. DETAILED COMPARISON WITH JRNL TITL 4 BOVINE BETA-TRYPSIN AND ITS COMPLEX. JRNL REF J.MOL.BIOL. V. 229 1022 1993 JRNL REFN ISSN 0022-2836 JRNL PMID 8445634 JRNL DOI 10.1006/JMBI.1993.1102 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH Q.HUANG,S.LIU,Y.TANG,F.ZENG,R.QIAN REMARK 1 TITL AMINO ACID SEQUENCING OF A TRYPSIN INHIBITOR BY REFINED 1.6 REMARK 1 TITL 2 ANGSTROMS X-RAY CRYSTAL STRUCTURE OF ITS COMPLEX WITH REMARK 1 TITL 3 PORCINE BETA-TRYPSIN REMARK 1 REF FEBS LETT. V. 297 143 1992 REMARK 1 REFN ISSN 0014-5793 REMARK 2 REMARK 2 RESOLUTION. 1.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : NULL REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.167 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1855 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 135 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.011 REMARK 3 BOND ANGLES (DEGREES) : 2.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 14.80 REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1MCT 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_1000174953. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: SQUASH, X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 53.43 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.64 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 82.87333 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 41.43667 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 41.43667 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 82.87333 REMARK 290 REMARK 290 REMARK: NULL 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1590 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 9970 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -20.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, I 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 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 ARG A 62 CG CD NE CZ NH1 NH2 REMARK 480 ASN A 79 CB CG OD1 ND2 REMARK 480 ARG A 125 CG CD NE CZ NH1 NH2 REMARK 480 LYS A 145 CE NZ REMARK 480 SER A 147 O OG REMARK 480 SER A 149 OG REMARK 480 GLN A 221 CD OE1 REMARK 480 LYS A 222 CG CD CE NZ REMARK 480 ASN A 236 OD1 ND2 REMARK 480 GLN A 239 CD REMARK 480 GLN A 240 CG CD OE1 NE2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 HH TYR A 228 H2 HOH A 306 1.29 REMARK 500 HD22 ASN A 101 HH TYR A 234 1.33 REMARK 500 HD21 ASN A 165 HZ3 LYS A 169 1.35 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 ARG A 66 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 ARG A 117 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 ARG I 1 NE - CZ - NH1 ANGL. DEV. = 6.1 DEGREES REMARK 500 ARG I 1 NE - CZ - NH2 ANGL. DEV. = -6.5 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 ASN A 25 -12.90 81.17 REMARK 500 HIS A 71 -58.25 -132.56 REMARK 500 ASN A 115 -150.82 -149.65 REMARK 500 SER A 214 -66.53 -125.70 REMARK 500 ARG I 5 34.71 -91.12 REMARK 500 ALA I 18 -128.09 42.22 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 TYR A 217 0.07 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 246 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 70 OE1 REMARK 620 2 ASN A 72 O 89.3 REMARK 620 3 VAL A 75 O 152.1 79.6 REMARK 620 4 GLU A 77 OE1 100.1 84.9 104.2 REMARK 620 5 GLU A 80 OE2 101.6 167.1 93.4 86.4 REMARK 620 6 HOH A 254 O 75.2 100.2 81.6 173.0 89.3 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 246 REMARK 999 REMARK 999 SEQUENCE REMARK 999 SEQUENCE ADVISORY NOTICE: REMARK 999 DIFFERENCE BETWEEN SWISS-PROT AND PDB SEQUENCE. REMARK 999 REMARK 999 SWISS-PROT ENTRY NAME: TRYP_PIG REMARK 999 REMARK 999 SWISS-PROT RESIDUE PDB SEQRES REMARK 999 NAME NUMBER NAME CHAIN SEQ/INSERT CODE REMARK 999 ASP 145 ASN A 145 REMARK 999 GLU 167 GLN A 167 REMARK 999 REMARK 999 SWISS-PROT ENTRY NAME: ITR2_MOMCH REMARK 999 REMARK 999 SWISS-PROT RESIDUE PDB SEQRES REMARK 999 NAME NUMBER NAME CHAIN SEQ/INSERT CODE REMARK 999 LYS 11 THR I 11 REMARK 999 GLN 19 LYS I 19 REMARK 999 ASP 24 ALA I 24 REMARK 999 REMARK 999 THE SEQUENCE USED IN THIS ENTRY WAS DETERMINED BY X-RAY REMARK 999 CRYSTALLOGRAPHY. THERE ARE SEVERAL UNCERTAIN ASSIGNMENTS REMARK 999 WHICH DIFFER FROM THE CHEMICALLY DETERMINED SEQUENCES. DBREF 1MCT A 16 245 UNP P00761 TRYP_PIG 9 231 DBREF 1MCT I 1 28 UNP P30709 ITRA_MOMCH 1 28 SEQADV 1MCT ASN A 165 UNP P00761 ASP 153 CONFLICT SEQADV 1MCT GLN A 186 UNP P00761 GLU 175 CONFLICT SEQADV 1MCT ILE I 2 UNP P30709 SER 2 CONFLICT SEQRES 1 A 223 ILE VAL GLY GLY TYR THR CYS ALA ALA ASN SER ILE PRO SEQRES 2 A 223 TYR GLN VAL SER LEU ASN SER GLY SER HIS PHE CYS GLY SEQRES 3 A 223 GLY SER LEU ILE ASN SER GLN TRP VAL VAL SER ALA ALA SEQRES 4 A 223 HIS CYS TYR LYS SER ARG ILE GLN VAL ARG LEU GLY GLU SEQRES 5 A 223 HIS ASN ILE ASP VAL LEU GLU GLY ASN GLU GLN PHE ILE SEQRES 6 A 223 ASN ALA ALA LYS ILE ILE THR HIS PRO ASN PHE ASN GLY SEQRES 7 A 223 ASN THR LEU ASP ASN ASP ILE MET LEU ILE LYS LEU SER SEQRES 8 A 223 SER PRO ALA THR LEU ASN SER ARG VAL ALA THR VAL SER SEQRES 9 A 223 LEU PRO ARG SER CYS ALA ALA ALA GLY THR GLU CYS LEU SEQRES 10 A 223 ILE SER GLY TRP GLY ASN THR LYS SER SER GLY SER SER SEQRES 11 A 223 TYR PRO SER LEU LEU GLN CYS LEU LYS ALA PRO VAL LEU SEQRES 12 A 223 SER ASN SER SER CYS LYS SER SER TYR PRO GLY GLN ILE SEQRES 13 A 223 THR GLY ASN MET ILE CYS VAL GLY PHE LEU GLN GLY GLY SEQRES 14 A 223 LYS ASP SER CYS GLN GLY ASP SER GLY GLY PRO VAL VAL SEQRES 15 A 223 CYS ASN GLY GLN LEU GLN GLY ILE VAL SER TRP GLY TYR SEQRES 16 A 223 GLY CYS ALA GLN LYS ASN LYS PRO GLY VAL TYR THR LYS SEQRES 17 A 223 VAL CYS ASN TYR VAL ASN TRP ILE GLN GLN THR ILE ALA SEQRES 18 A 223 ALA ASN SEQRES 1 I 28 ARG ILE CYS PRO ARG ILE TRP MET GLU CYS THR ARG ASP SEQRES 2 I 28 SER ASP CYS MET ALA LYS CYS ILE CYS VAL ALA GLY HIS SEQRES 3 I 28 CYS GLY HET CA A 246 1 HETNAM CA CALCIUM ION FORMUL 3 CA CA 2+ FORMUL 4 HOH *135(H2 O) HELIX 1 H1 SER A 164 PRO A 173 1 10 HELIX 2 H2 TYR A 234 ASN A 245 1 12 SHEET 1 A 7 MET A 180 VAL A 183 0 SHEET 2 A 7 GLY A 226 LYS A 230 -1 O GLY A 226 N VAL A 183 SHEET 3 A 7 GLN A 204 GLY A 216 -1 O ILE A 212 N THR A 229 SHEET 4 A 7 PRO A 198 CYS A 201 -1 O VAL A 199 N GLN A 210 SHEET 5 A 7 GLU A 135 GLY A 140 -1 O LEU A 137 N VAL A 200 SHEET 6 A 7 GLN A 156 PRO A 161 -1 N GLN A 156 O GLY A 140 SHEET 7 A 7 TYR A 20 THR A 21 -1 O TYR A 20 N CYS A 157 SHEET 1 B 3 MET A 180 VAL A 183 0 SHEET 2 B 3 GLY A 226 LYS A 230 -1 O GLY A 226 N VAL A 183 SHEET 3 B 3 GLN A 204 GLY A 216 -1 O ILE A 212 N THR A 229 SHEET 1 C 7 GLN A 30 ASN A 34 0 SHEET 2 C 7 HIS A 40 ASN A 48 -1 N PHE A 41 O LEU A 33 SHEET 3 C 7 TRP A 51 SER A 54 -1 O TRP A 51 N ILE A 47 SHEET 4 C 7 MET A 104 LEU A 108 -1 O MET A 104 N SER A 54 SHEET 5 C 7 GLN A 81 THR A 90 -1 N ALA A 86 O LYS A 107 SHEET 6 C 7 GLN A 64 LEU A 67 -1 N VAL A 65 O ILE A 83 SHEET 7 C 7 GLN A 30 ASN A 34 -1 O SER A 32 N ARG A 66 SSBOND 1 CYS A 22 CYS A 157 1555 1555 2.01 SSBOND 2 CYS A 42 CYS A 58 1555 1555 2.02 SSBOND 3 CYS A 128 CYS A 232 1555 1555 2.03 SSBOND 4 CYS A 136 CYS A 201 1555 1555 2.02 SSBOND 5 CYS A 168 CYS A 182 1555 1555 2.02 SSBOND 6 CYS A 191 CYS A 220 1555 1555 2.02 SSBOND 7 CYS I 3 CYS I 20 1555 1555 2.01 SSBOND 8 CYS I 10 CYS I 22 1555 1555 2.03 SSBOND 9 CYS I 16 CYS I 27 1555 1555 2.03 LINK OE1 GLU A 70 CA CA A 246 1555 1555 2.36 LINK O ASN A 72 CA CA A 246 1555 1555 2.43 LINK O VAL A 75 CA CA A 246 1555 1555 2.31 LINK OE1 GLU A 77 CA CA A 246 1555 1555 2.80 LINK OE2 GLU A 80 CA CA A 246 1555 1555 2.34 LINK CA CA A 246 O HOH A 254 1555 1555 2.64 SITE 1 AC1 6 GLU A 70 ASN A 72 VAL A 75 GLU A 77 SITE 2 AC1 6 GLU A 80 HOH A 254 CRYST1 62.650 62.650 124.310 90.00 90.00 120.00 P 32 2 1 6 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 0.015962 0.009215 0.000000 0.00000 SCALE2 0.000000 0.018431 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008044 0.00000