title: Differential expression in Arabidopsis of Lhca2, a PSI cab gene.
abstract: A cDNA clone of the gene Lhca2 encoding a photosystem I (PSI) type II chlorophyll a/b-binding protein was isolated from Arabidopsis thaliana. The isolation of this, the fourth PSI cab gene from Arabidopsis, confirms a previous report [1] that indicated Arabidopsis may contain all four PSI cab genes identified in other plant species. Lhca2 is a single-copy gene as are the other known Arabidopsis PSI cab genes. The patterns of developmental expression and tissue-specific regulation of Lhca2 are similar to those of other PSI and PSII cab genes, but the light induction pattern and the steady-state mRNA level of Lhca2 are distinct. This suggests that a different mechanism may be employed to regulate the expression of Lhca2.
authors.affiliation: Department of Genetics, Harvard Medical School, Boston, MA.
authors.forename: H
authors.initials: H
authors.lastname: Zhang
authors.forename: J
authors.initials: J
authors.lastname: Wang
authors.forename: H M
authors.initials: HM
authors.lastname: Goodman
mesh_terms: D000595:Amino Acid Sequence; D017360:Arabidopsis / Q000235:genetics* / Q000528:radiation effects; D029681:Arabidopsis Proteins; D002734:Chlorophyll; D061146:Chlorophyll Binding Proteins; D017343:Genes, Plant / Q000235:genetics*; D008027:Light; D045342:Light-Harvesting Protein Complexes; D008969:Molecular Sequence Data; D005810:Multigene Family / Q000235:genetics; D045322:Photosynthetic Reaction Center Complex Proteins / Q000235:genetics* / Q000528:radiation effects; D045331:Photosystem I Protein Complex; D010940:Plant Proteins / Q000235:genetics*; D012333:RNA, Messenger / Q000032:analysis; D017386:Sequence Homology, Amino Acid; D014018:Tissue Distribution
chemical_list: D029681:Arabidopsis Proteins; D061146:Chlorophyll Binding Proteins; C490277:Lhca2 protein, Arabidopsis; D045342:Light-Harvesting Protein Complexes; D045322:Photosynthetic Reaction Center Complex Proteins; D045331:Photosystem I Protein Complex; D010940:Plant Proteins; D012333:RNA, Messenger; D002734:Chlorophyll