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1QRK

HUMAN FACTOR XIII WITH STRONTIUM BOUND IN THE ION SITE

Replaces:  1BL2
Summary for 1QRK
Entry DOI10.2210/pdb1qrk/pdb
Related1FIE 1GGT 1GGU 1GGY
DescriptorPROTEIN (COAGULATION FACTOR XIII), STRONTIUM ION (3 entities in total)
Functional Keywordstransglutaminase, blood coagulation, calcium, strontium, transferase
Biological sourceHomo sapiens (human)
Cellular locationCytoplasm: P00488
Total number of polymer chains2
Total formula weight166643.08
Authors
Fox, B.A.,Yee, V.C.,Pederson, L.C.,Le Trong, I.,Bishop, P.D.,Stenkamp, R.E.,Teller, D.C. (deposition date: 1999-06-14, release date: 1999-07-02, Last modification date: 2023-08-16)
Primary citationFox, B.A.,Yee, V.C.,Pedersen, L.C.,Le Trong, I.,Bishop, P.D.,Stenkamp, R.E.,Teller, D.C.
Identification of the calcium binding site and a novel ytterbium site in blood coagulation factor XIII by x-ray crystallography.
J.Biol.Chem., 274:4917-4923, 1999
Cited by
PubMed Abstract: The presence or absence of calcium determines the activation, activity, oligomerization, and stability of blood coagulation factor XIII. To explore these observed effects, we have determined the x-ray crystal structure of recombinant factor XIII A2 in the presence of calcium, strontium, and ytterbium. The main calcium binding site within each monomer involves the main chain oxygen atom of Ala-457, and also the side chains from residues Asn-436, Asp-438, Glu-485, and Glu-490. Calcium and strontium bind in the same location, while ytterbium binds several angstroms removed. A novel ytterbium binding site is also found at the dimer two-fold axis, near residues Asp-270 and Glu-272, and this site may be related to the reported inhibition by lanthanide metals (Achyuthan, K. E., Mary, A., and Greenberg, C. S. (1989) Biochem. J. 257, 331-338). The overall structure of ion-bound factor XIII is very similar to the previously determined crystal structures of factor XIII zymogen, likely due to the constraints of this monoclinic crystal form. We have merged the three independent sets of water molecules in the structures to determine which water molecules are conserved and possibly structurally significant.
PubMed: 9988734
DOI: 10.1074/jbc.274.8.4917
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (2.5 Å)
Structure validation

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