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1fzf
From Proteopedia
| 1fzf, resolution 2.70Å () | |||||||||
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| Sites: | , , , , , , and | ||||||||
| Ligands: | , | ||||||||
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||
Contents |
CRYSTAL STRUCTURE OF FRAGMENT DOUBLE-D FROM HUMAN FIBRIN WITH THE PEPTIDE LIGAND GLY-HIS-ARG-PRO-AMIDE
The structure of fragment double-D from human fibrin has been solved in the presence and absence of the peptide ligands that simulate the two knobs exposed by the removal of fibrinopeptides A and B, respectively. All told, six crystal structures have been determined, three of which are reported here for the first time: namely, fragments D and double-D with the peptide GHRPam alone and double-D in the absence of any peptide ligand. Comparison of the structures has revealed a series of conformational changes that are brought about by the various knob-hole interactions. Of greatest interest is a moveable "flap" of two negatively charged amino acids (Glubeta397 and Aspbeta398) whose side chains are pinned back to the coiled coil with a calcium atom bridge until GHRPam occupies the beta-chain pocket. Additionally, in the absence of the peptide ligand GPRPam, GHRPam binds to the gamma-chain pocket, a new calcium-binding site being formed concomitantly.
Conformational changes in fragments D and double-D from human fibrin(ogen) upon binding the peptide ligand Gly-His-Arg-Pro-amide., Everse SJ, Spraggon G, Veerapandian L, Doolittle RF, Biochemistry. 1999 Mar 9;38(10):2941-6. PMID:10074346
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
About this Structure
1fzf is a 10 chain structure of Fibrinogen with sequence from Homo sapiens. Full crystallographic information is available from OCA.
See Also
Reference
- Everse SJ, Spraggon G, Veerapandian L, Doolittle RF. Conformational changes in fragments D and double-D from human fibrin(ogen) upon binding the peptide ligand Gly-His-Arg-Pro-amide. Biochemistry. 1999 Mar 9;38(10):2941-6. PMID:10074346 doi:10.1021/bi982626w
