3LJD image
Entry Detail
PDB ID:
3LJD
Keywords:
Title:
The X-ray structure of zebrafish RNase1 from a new crystal form at pH 4.5
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2010-01-26
Release Date:
2010-12-08
Method Details:
Experimental Method:
Resolution:
1.38 Å
R-Value Free:
0.18
R-Value Work:
0.14
R-Value Observed:
0.14
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Zebrafish RNase1
Chain IDs:A, B
Chain Length:126
Number of Molecules:2
Biological Source:Danio rerio
Primary Citation

Abstact

Recently, extracellular RNases of the RNase A superfamily, with the characteristic CKxxNTF sequence signature, have been identified in fish. This has led to the recognition that these RNases are present in the whole vertebrate subphylum. In fact, they comprise the only enzyme family unique to vertebrates. Four RNases from zebrafish (Danio rerio) have been previously reported and have a very low RNase activity; some of these are endowed, like human angiogenin, with powerful angiogenic and bactericidal activities. In the present paper, we report the three-dimensional structure, the thermodynamic behaviour and the biological properties of a novel zebrafish RNase, ZF-RNase-5. The investigation of its structural and functional properties, extended to all other subfamily members, provides an inclusive description of the whole zebrafish RNase subfamily.

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