Unusual structural stability and ligand induced alterations in oligomerization of a galectin


Autoria(s): Surolia, Avadhesha; Swaminathan, Chittoor P; Ramkumar, Radha; Podder, Sunil K
Data(s)

16/06/1997

Resumo

Abstract L-14, a 14-kDa S-type lectin shows the jelly roll tertiary structural fold akin to legume lectins yet, unlike them, it does not dissociate on thermal unfolding. In the absence of ligand L-14 displays denaturation transitions corresponding to tetrameric and octameric entities. The presence of complementary ligand reduces the association of L-14, which is in stark contrast with legume lectins where no alterations in quaternary structures are brought about by saccharides. From the magnitude of the increase in denaturation temperature induced by disaccharides the binding constants calculated from differential scanning calorimetry are comparable with those extrapolated from titration calorimetry indicating that L-14 interacts with ligands essentially in the folded state.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/24588/1/http___www.sciencedirect.com_science__ob%3DMImg%26_imagekey%3DB6T36-3R85D2W-34-9%26_cdi%3D4938%26_user%3D512776%26_orig%3Dsearch%26_coverDate%3D06%252F16%252F1997%26_sk%3D995909996%26view%3Dc%26wchp%3DdGLbVzb-zSkzV%26md5%3D1a25dda2barticle.pdf

Surolia, Avadhesha and Swaminathan, Chittoor P and Ramkumar, Radha and Podder, Sunil K (1997) Unusual structural stability and ligand induced alterations in oligomerization of a galectin. In: FEBS Letters, 409 (3). pp. 417-420.

Publicador

Elsevier Science

Relação

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T36-3R85D2W-34&_user=512776&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000025298&_version=1&_urlVersion=0&_userid=512776&md5=7992386e17445d4e255d086a2e523750

http://eprints.iisc.ernet.in/24588/

Palavras-Chave #Molecular Biophysics Unit #Biochemistry
Tipo

Journal Article

PeerReviewed