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Differential sialylation regulates the apoptotic activity of glycodelin A

Poornimaa, Lakshmanamurthy B and Karande, Anjali A (2007) Differential sialylation regulates the apoptotic activity of glycodelin A. In: FEBS Letters, 581 (22). pp. 4366-4370.

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Glycodelin A (GdA), a dimeric lipocalin, expressed by the uterine endometrium, is an immunomodulatory agent and induces apoptosis in T-cells. In this study we demonstrate that two populations of GdA with subtle differences in their net ionic charge are present in the amniotic fluid and that, apoptotic activity is exhibited only by the population with more sialic acid residues. Significantly, removal of sialic acid residues from the active populations of GdA abrogates the activity of the molecule, suggesting that the extent of sialylation might be a factor regulating the activity of GdA.

Item Type: Journal Article
Publication: FEBS Letters
Publisher: Elsevier
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Glycodelin;Lipocalin;Sialic acid;Apoptosis.
Department/Centre: Division of Biological Sciences > Biochemistry
Date Deposited: 05 Aug 2008
Last Modified: 19 Sep 2010 04:48
URI: http://eprints.iisc.ac.in/id/eprint/15425

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