1DS3 - JenaLib

Title :   CRYSTAL STRUCTURE OF OMTKY3-CH2-ASP19I

Authors :   K. S. Bateman, K. Huang, S. Anderson, W. Lu, M. A. Qasim, M. Laskowski Jr M. N. G. James

Date :   06 Jan 00 (Deposition) - 31 Jan 01 (Release) - 17 Aug 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.65

Chains :   Asym./Biol. Unit : I

Keywords :   Canonical Protein Inhibitor, Ovomucoid, Reduced Peptide Bond, Omtky3, Hydrolase Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   K. S. Bateman, K. Huang, S. Anderson, W. Lu, M. A. Qasim, M. Laskowski Jr. , M. N. James
Contribution Of Peptide Bonds To Inhibitor-Protease Binding Crystal Structures Of The Turkey Ovomucoid Third Domain Backbone Variants Omtky3-Pro18I And Omtky3-Psi[Coo]-Leu18I In Complex With Streptomyces Griseus Proteinase B (Sgpb) An The Structure Of The Free Inhibitor, Omtky-3-Psi[Ch2Nh2+]-Asp19I
J. Mol. Biol. V. 305 839 2001
PubMed-ID: 11162096 | Reference-DOI: 10.1006/JMBI.2000.4343

Compounds

Molecule 1 - OVOMUCOID
	Chains	:	I
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Fragment	:	THIRD DOMAIN (OMTKY3)
	Mutation	:	YES
	Organism Common	:	TURKEY
	Organism Scientific	:	MELEAGRIS GALLOPAVO
	Organism Taxid	:	9103
	Other Details	:	THE PEPTIDE BOND BETWEEN LEU18I(2LU) AND ASP19I HAS BEEN REDUCED.

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 1)

Sites (0, 0)

SS Bonds (3, 3)

Cis Peptide Bonds (1, 1)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 1)

Exons (0, 0)

Sequences/Alignments

Asymmetric/Biological Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

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Chain I from PDB  Type:PROTEIN  Length:51
 aligned with IOVO_MELGA | P68390 from UniProtKB/Swiss-Prot  Length:185

    Alignment length:51
                                   144       154       164       174       184 
           IOVO_MELGA   135 VDCSEYPKPACTLEYRPLCGSDNKTYGNKCNFCNAVVESNGTLTLSHFGKC 185
               SCOP domains d1ds3i_ I: Ovomucoid domains                        SCOP domains
               CATH domains 1ds3I00 I:6-56  [code=3.30.60.30, no name defined]  CATH domains
               Pfam domains --------------------------------------------------- Pfam domains
         Sec.struct. author .................eee....ee.hhhhhhhhhhhh.....eeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------KAZAL_1  PDB: I:16-38  ------------------ PROSITE
                 Transcript --------------------------------------------------- Transcript
                 1ds3 I   6 VDCSEYPKPACTxDYRPLCGSDNKTYGNKCNFCNAVVESNGTLTLSHFGKC  56
                                    15  |     25        35        45        55 
                                       18-DCL

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Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (1, 1)

Pfam Domains (0, 0)

Gene Ontology (5, 5)

Asymmetric/Biological Unit(hide GO term definitions)

Chain I (IOVO_MELGA | P68390)

molecular function
	GO:0030414	peptidase inhibitor activity	Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds.
	GO:0004867	serine-type endopeptidase inhibitor activity	Stops, prevents or reduces the activity of serine-type endopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain; a serine residue (and a histidine residue) are at the active center of the enzyme.
biological process
	GO:0010951	negative regulation of endopeptidase activity	Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
	GO:0010466	negative regulation of peptidase activity	Any process that stops or reduces the rate of peptidase activity, the hydrolysis of peptide bonds within proteins.
cellular component
	GO:0005576	extracellular region	The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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		Tyr I:11 - Pro I:12	[ RasMol ]

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