1bd7
From Proteopedia
CIRCULARLY PERMUTED BB2-CRYSTALLIN
Overview
The betagamma-crystallins form a superfamily of eye lens proteins comprised of multiple Greek motifs that are symmetrically organized into domains and higher assemblies. In the betaB2-crystallin dimer each polypeptide folds into two similar domains that are related to monomeric gamma-crystallin by domain swapping. The crystal structure of the circularly permuted two-domain betaB2 polypeptide shows that permutation converts intermolecular domain pairing into intramolecular pairing. However, the dimeric permuted protein is, in fact, half a native tetramer. This result shows how the sequential order of domains in multi-domain proteins can affect quaternary domain assembly.
About this Structure
1BD7 is a Single protein structure of sequence from Rattus norvegicus. Full crystallographic information is available from OCA.
Reference
Circular permutation of betaB2-crystallin changes the hierarchy of domain assembly., Wright G, Basak AK, Wieligmann K, Mayr EM, Slingsby C, Protein Sci. 1998 Jun;7(6):1280-5. PMID:9655330 Page seeded by OCA on Fri May 2 11:21:44 2008
