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1qqf
From Proteopedia
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| - | [[Image:1qqf.gif|left|200px]] | + | [[Image:1qqf.gif|left|200px]] |
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| - | '''N-TERMINALLY TRUNCATED C3D,G FRAGMENT OF THE COMPLEMENT SYSTEM''' | + | {{Structure |
| + | |PDB= 1qqf |SIZE=350|CAPTION= <scene name='initialview01'>1qqf</scene>, resolution 1.45Å | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
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| + | '''N-TERMINALLY TRUNCATED C3D,G FRAGMENT OF THE COMPLEMENT SYSTEM''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1QQF is a [ | + | 1QQF is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QQF OCA]. |
==Reference== | ==Reference== | ||
| - | Structure at 1.44 A resolution of an N-terminally truncated form of the rat serum complement C3d fragment., Zanotti G, Bassetto A, Battistutta R, Folli C, Arcidiaco P, Stoppini M, Berni R, Biochim Biophys Acta. 2000 May 23;1478(2):232-8. PMID:[http:// | + | Structure at 1.44 A resolution of an N-terminally truncated form of the rat serum complement C3d fragment., Zanotti G, Bassetto A, Battistutta R, Folli C, Arcidiaco P, Stoppini M, Berni R, Biochim Biophys Acta. 2000 May 23;1478(2):232-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10825534 10825534] |
[[Category: Rattus norvegicus]] | [[Category: Rattus norvegicus]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: complement]] | [[Category: complement]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 13:41:16 2008'' |
Revision as of 11:41, 20 March 2008
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| Coordinates: | save as pdb, mmCIF, xml | ||||||
N-TERMINALLY TRUNCATED C3D,G FRAGMENT OF THE COMPLEMENT SYSTEM
Overview
Complement component C3 plays a key role in the complement-mediated immune defence, and occupies a central position within the complement cascade system. One of its degradation products, C3dg, was purified from rat serum and crystallised in two different crystal forms as N-terminally truncated fragment. Despite the truncation and the lack of a significant portion of the N-terminus as compared to C3d, the structure of the fragment is highly similar to that of recombinant human C3d (Nagar et al., Science 280 (1998) 1277-1281). Structural details of the reactive site have been obtained, suggesting a possible mode of thioester bond formation between Cys-1010 and Gln-1013 and thioester bond cleavage in the transacylation reaction involving His-1126. The truncation at the N-terminus of C3d leads to the exposure of a surface of the molecule that favours dimerisation, so that in both crystal forms, the fragment is present as a dimer, with monomers related by a two-fold axis.
About this Structure
1QQF is a Single protein structure of sequence from Rattus norvegicus. Full crystallographic information is available from OCA.
Reference
Structure at 1.44 A resolution of an N-terminally truncated form of the rat serum complement C3d fragment., Zanotti G, Bassetto A, Battistutta R, Folli C, Arcidiaco P, Stoppini M, Berni R, Biochim Biophys Acta. 2000 May 23;1478(2):232-8. PMID:10825534
Page seeded by OCA on Thu Mar 20 13:41:16 2008
