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(-) Description

Title :  SOLUTION STRUCTURE OF OVOMUCOID (THIRD DOMAIN) FROM DOMESTIC TURKEY (298K, PH 4.1) (NMR, 50 STRUCTURES) (REFINED MODEL USING NETWORK EDITING ANALYSIS)
 
Authors :  C. G. Hoogstraten, S. Choe, W. M. Westler, J. L. Markley
Date :  11 Oct 95  (Deposition) - 08 Mar 96  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (50x)
Keywords :  Spin Diffusion, Network Editing, Bd-Noesy, Cbd-Noesy, Serine Proteinase Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  C. G. Hoogstraten, S. Choe, W. M. Westler, J. L. Markley
Comparison Of The Accuracy Of Protein Solution Structures Derived From Conventional And Network-Edited Noesy Data.
Protein Sci. V. 4 2289 1995
PubMed-ID: 8563625
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - OVOMUCOID (THIRD DOMAIN)
    Cellular Location: EGG WHITE
    Cell Line: BL21
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Gene: OM3
    Expression System Plasmid: PTNOM3 (FUSION WITH STAPH. NUCLEASE)
    Expression System Strain: BL21 (DE3)/PLYSS
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: OM3
    Organ: EGG
    Organism Common: TURKEY
    Organism Scientific: MELEAGRIS GALLOPAVO
    Organism Taxid: 9103
    Other Details: MATERIAL PRODUCED FROM THE NATURAL SOURCE WAS USED FOR A PORTION OF THE DATA. PLASMID PTNOM3 WAS MODIFIED BY MUTATING TWO METHIONINES IN THE SNASE MOIETY TO ALANINES TO FACILITATE PURIFICATION
    Synonym: OMTKY3

 Structural Features

(-) Chains, Units

  
NMR Structure (50x): 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1OMU)

(-) Sites  (1, 1)

NMR Structure (1, 1)
No.NameEvidenceResiduesDescription
1REAUNKNOWNLEU A:18 , GLU A:19NULL

(-) SS Bonds  (3, 3)

NMR Structure
No.Residues
1A:8 -A:38
2A:16 -A:35
3A:24 -A:56

(-) Cis Peptide Bonds  (1, 50)

NMR Structure
No.ModelResidues
11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50Tyr A:11 -Pro A:12

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1OMU)

(-) PROSITE Motifs  (2, 2)

NMR Structure (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1KAZAL_2PS51465 Kazal domain profile.IOVO_MELGA63-128
1-62
131-185		  1-
-
A:2-56
2KAZAL_1PS00282 Kazal serine protease inhibitors family signature.IOVO_MELGA86-108
145-167		  1-
A:16-38

(-) Exons   (0, 0)

(no "Exon" information available for 1OMU)

(-) Sequences/Alignments

NMR Structure
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:56
 aligned with IOVO_MELGA | P68390 from UniProtKB/Swiss-Prot  Length:185

    Alignment length:56
                                   139       149       159       169       179      
           IOVO_MELGA   130 LAAVSVDCSEYPKPACTLEYRPLCGSDNKTYGNKCNFCNAVVESNGTLTLSHFGKC 185
               SCOP domains d1omua_ A: Ovomucoid domains                             SCOP domains
               CATH domains 1omuA00 A:1-56  [code=3.30.60.30, no name defined]       CATH domains
               Pfam domains -------Kazal_1-1omuA01 A:8-56                            Pfam domains
         Sec.struct. author ......................eee........hhhhhhhhh.......eeee... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) -KAZAL_2  PDB: A:2-56 UniProt: 131-185                   PROSITE (1)
                PROSITE (2) ---------------KAZAL_1  PDB: A:16-38  ------------------ PROSITE (2)
                 Transcript -------------------------------------------------------- Transcript
                 1omu A   1 LAAVSVDCSEYPKPACTLEYRPLCGSDNKTYGNKCNFCNAVVESNGTLTLSHFGKC  56
                                    10        20        30        40        50
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 1)

NMR Structure
(-)
Class: Small proteins (3458)

(-) CATH Domains  (1, 1)

NMR Structure
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 1)

NMR Structure
(-)
Clan: Kazal (46)

(-) Gene Ontology  (5, 5)

NMR Structure(hide GO term definitions)
Chain A   (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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  1omu
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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        IOVO_MELGA | P68390: 1cho 1cso 1ct0 1ct2 1ct4 1ds2 1ds3 1hja 1m8b 1m8c 1omt 1ppf 1r0r 1sgd 1sge 1sgn 1sgp 1sgq 1sgr 1sgy 1tur 1tus 1yu6 1z7k 2gkr 2gkt 2gkv 2nu0 2nu1 2nu2 2nu3 2nu4 2sgd 2sge 2sgf 2sgp 2sgq 3sgb 3sgq

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