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1ixx

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CRYSTAL STRUCTURE OF COAGULATION FACTORS IX/X-BINDING PROTEIN (IX/X-BP) FROM VENOM OF HABU SNAKE WITH A HETERODIMER OF C-TYPE LECTIN DOMAINSCRYSTAL STRUCTURE OF COAGULATION FACTORS IX/X-BINDING PROTEIN (IX/X-BP) FROM VENOM OF HABU SNAKE WITH A HETERODIMER OF C-TYPE LECTIN DOMAINS

Structural highlights

1ixx is a 6 chain structure with sequence from Trimeresurus flavoviridis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:FirstGlance, OCA, RCSB, PDBsum

Function

[IXB_TRIFL] When linked to subunit A of IX/X-bp, anticoagulant protein which binds to the gamma-carboxyglutamic acid-domain regions of factors IX (F9) and factor X (10) in the presence of calcium with a 1 to 1 stoichiometry.[1] [2] [3] When linked to subunit A of IX-bp, anticoagulant protein which binds to the gamma-carboxyglutamic acid-domain regions of factor IX (but not to factor X) in the presence of calcium with a 1 to 1 stoichiometry.[4] [5] [6]

Evolutionary Conservation

 

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Coagulation factors IX/X-binding protein is an intertwined dimer with a central loop projecting into the adjoining subunit. Excluding this loop, each subunit has a fold similar to rat mannose-binding protein.

Structure of coagulation factors IX/X-binding protein, a heterodimer of C-type lectin domains.,Mizuno H, Fujimoto Z, Koizumi M, Kano H, Atoda H, Morita T Nat Struct Biol. 1997 Jun;4(6):438-41. PMID:9187649[7]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. ↑ Atoda H, Morita T. A novel blood coagulation factor IX/factor X-binding protein with anticoagulant activity from the venom of Trimeresurus flavoviridis (Habu snake): isolation and characterization. J Biochem. 1989 Nov;106(5):808-13. PMID:2613688
  2. ↑ Atoda H, Yoshida N, Ishikawa M, Morita T. Binding properties of the coagulation factor IX/factor X-binding protein isolated from the venom of Trimeresurus flavoviridis. Eur J Biochem. 1994 Sep 1;224(2):703-8. PMID:7925387
  3. ↑ Atoda H, Ishikawa M, Yoshihara E, Sekiya F, Morita T. Blood coagulation factor IX-binding protein from the venom of Trimeresurus flavoviridis: purification and characterization. J Biochem. 1995 Nov;118(5):965-73. PMID:8749314
  4. ↑ Atoda H, Morita T. A novel blood coagulation factor IX/factor X-binding protein with anticoagulant activity from the venom of Trimeresurus flavoviridis (Habu snake): isolation and characterization. J Biochem. 1989 Nov;106(5):808-13. PMID:2613688
  5. ↑ Atoda H, Yoshida N, Ishikawa M, Morita T. Binding properties of the coagulation factor IX/factor X-binding protein isolated from the venom of Trimeresurus flavoviridis. Eur J Biochem. 1994 Sep 1;224(2):703-8. PMID:7925387
  6. ↑ Atoda H, Ishikawa M, Yoshihara E, Sekiya F, Morita T. Blood coagulation factor IX-binding protein from the venom of Trimeresurus flavoviridis: purification and characterization. J Biochem. 1995 Nov;118(5):965-73. PMID:8749314
  7. ↑ Mizuno H, Fujimoto Z, Koizumi M, Kano H, Atoda H, Morita T. Structure of coagulation factors IX/X-binding protein, a heterodimer of C-type lectin domains. Nat Struct Biol. 1997 Jun;4(6):438-41. PMID:9187649

1ixx, resolution 2.50Å

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