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Article: Expression of ACBP4 and ACBP5 proteins is modulated by light in Arabidopsis.

TitleExpression of ACBP4 and ACBP5 proteins is modulated by light in Arabidopsis.
Authors
Issue Date2009
Citation
Plant Signaling & Behavior, 2009, v. 4 n. 11, p. 1063-1065 How to Cite?
AbstractIn our recent paper in Plant Physiology and Biochemistry, we reported that the mRNAs encoding Arabidopsis thaliana cytosolic acyl-CoA-binding proteins, ACBP4 and ACBP5, but not ACBP6, are modulated by light/dark cycling. The pattern of circadian-regulated expression in ACBP4 and ACBP5 mRNAs resembles that of FAD7 which encodes omega-3-fatty acid desaturase, an enzyme involved in plastidial fatty acid biosynthesis. Recombinant ACBP4 and ACBP5 proteins were observed to bind oleoyl-CoA ester comparably better than recombinant ACBP6, suggesting that ACBP4 and ACBP5 are promising candidates in the trafficking of oleoyl-CoA from the plastids to the endoplasmic reticulum (ER) for the biosynthesis of non-plastidial membrane lipids. By western blot analyses using the ACBP4 and ACBP5-specific antibodies, we show herein that the levels of ACBP4 and ACBP5 proteins peak at the end of the light period, further demonstrating that they, like their corresponding mRNAs, are tightly controlled by light to satisfy demands of lipids in plant cells.
Persistent Identifierhttp://hdl.handle.net/10722/179198
ISSN
PubMed Central ID

 

DC FieldValueLanguage
dc.contributor.authorXiao, Sen_US
dc.contributor.authorChen, QFen_US
dc.contributor.authorChye, MLen_US
dc.date.accessioned2012-12-19T09:52:47Z-
dc.date.available2012-12-19T09:52:47Z-
dc.date.issued2009en_US
dc.identifier.citationPlant Signaling & Behavior, 2009, v. 4 n. 11, p. 1063-1065en_US
dc.identifier.issn1559-2324en_US
dc.identifier.urihttp://hdl.handle.net/10722/179198-
dc.description.abstractIn our recent paper in Plant Physiology and Biochemistry, we reported that the mRNAs encoding Arabidopsis thaliana cytosolic acyl-CoA-binding proteins, ACBP4 and ACBP5, but not ACBP6, are modulated by light/dark cycling. The pattern of circadian-regulated expression in ACBP4 and ACBP5 mRNAs resembles that of FAD7 which encodes omega-3-fatty acid desaturase, an enzyme involved in plastidial fatty acid biosynthesis. Recombinant ACBP4 and ACBP5 proteins were observed to bind oleoyl-CoA ester comparably better than recombinant ACBP6, suggesting that ACBP4 and ACBP5 are promising candidates in the trafficking of oleoyl-CoA from the plastids to the endoplasmic reticulum (ER) for the biosynthesis of non-plastidial membrane lipids. By western blot analyses using the ACBP4 and ACBP5-specific antibodies, we show herein that the levels of ACBP4 and ACBP5 proteins peak at the end of the light period, further demonstrating that they, like their corresponding mRNAs, are tightly controlled by light to satisfy demands of lipids in plant cells.en_US
dc.languageengen_US
dc.relation.ispartofPlant signaling & behavioren_US
dc.subject.meshAcyl Coenzyme A - Genetics - Metabolismen_US
dc.subject.meshAntibodiesen_US
dc.subject.meshArabidopsis - Genetics - Metabolismen_US
dc.subject.meshArabidopsis Proteins - Genetics - Metabolismen_US
dc.subject.meshBlotting, Westernen_US
dc.subject.meshCarrier Proteins - Genetics - Metabolismen_US
dc.subject.meshCell Membrane - Genetics - Metabolismen_US
dc.subject.meshChloroplasts - Genetics - Metabolismen_US
dc.subject.meshEndoplasmic Reticulum - Genetics - Metabolismen_US
dc.subject.meshGene Expression - Radiation Effectsen_US
dc.subject.meshGene Expression Regulation, Plant - Radiation Effectsen_US
dc.subject.meshGenes, Planten_US
dc.subject.meshLighten_US
dc.subject.meshLipids - Biosynthesis - Geneticsen_US
dc.subject.meshRna, Messenger - Metabolismen_US
dc.subject.meshRecombinant Proteins - Genetics - Metabolismen_US
dc.titleExpression of ACBP4 and ACBP5 proteins is modulated by light in Arabidopsis.en_US
dc.typeArticleen_US
dc.identifier.emailXiao, S: xiaoshi@graduate.hku.hken_US
dc.identifier.emailChye, ML: mlchye@hkucc.hku.hken_US
dc.identifier.authorityXiao, S=rp00817en_US
dc.identifier.authorityChye, ML=rp00687en_US
dc.description.naturelink_to_OA_fulltexten_US
dc.identifier.pmid20009557-
dc.identifier.pmcidPMC2819514-
dc.identifier.scopuseid_2-s2.0-77954063590en_US
dc.identifier.hkuros170508-
dc.identifier.volume4en_US
dc.identifier.issue11en_US
dc.identifier.spage1063en_US
dc.identifier.epage1065en_US
dc.identifier.scopusauthoridXiao, S=7402022635en_US
dc.identifier.scopusauthoridChen, QF=7406335399en_US
dc.identifier.scopusauthoridChye, ML=7003905460en_US

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