Molecular characterization of Dg3, a cDNA that encodes a novel lipid transfer protein in Brassica napus

Namasivayam, Parameswari and Hanke, David E. (2008) Molecular characterization of Dg3, a cDNA that encodes a novel lipid transfer protein in Brassica napus. Journal of Biological Sciences, 8 (5). pp. 846-856. ISSN 1727-3048

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Abstract

In this study, we have analysed the sequence of Dg3 clone using bioinformatic tools, determined copy number of this transcript in the genome of B. napus and expression levels at various tissues/organ. The cDNA contained 307-base pair open reading frame encoding 102 amino acid residues, 60-base pair 5`-untranslated region and 127-base pair 3`-untranslated region. The predicted mature protein has a molecular weight of 9.2 kDa and is acidic, with a predicted isoelectric point (pI) of 6.2. The Dg3 sequence has all the conserved structural characteristics of plant LTPs and showed highest homology to LTPs from other plant species. The transcripts of Dg3 were detected in all tested tissues but highest expression was in siliques and in vitro embryogenic cultures. Possible roles of Dg3 during somatic embryogenesis and normal plant development are discussed.

Item Type:Article
Keyword:Lipid transfer protein; cDNA; B.napus; Transcript; Expression analysis
Subject:Plant proteins - Biotechnology
Subject:Molecular cloning
Subject:Brassica napus
Faculty or Institute:Faculty of Biotechnology and Biomolecular Sciences
Publisher:American Network for Scientific Information
DOI Number:DOI: 10.3923/jbs.2008.846.856
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3923/jbs.2008.846.856
ID Code:15699
Deposited By: Nida Hidayati Ghazali
Deposited On:24 Jul 2012 01:30
Last Modified:01 Nov 2012 03:13

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