Comprehensive analysis of AHL homologous genes encoding AT-hook motif nuclear localized protein in rice.
The AT-hook motif is a small DNA-binding protein motif that has been found in the high mobility group of non-histone chromosomal proteins. The Arabidopsis genome contains 29 genes encoding the AT-hook motif DNA-binding protein (AHL). Recent studies of Arabidopsis genes (AtAHLs) have revealed that they might play diverse functional roles during plant growth and development. In this report, we mined 20 AHL genes (OsAHLs) from the rice genome database using AtAHL genes as queries and characterized their molecular features. A phylogenetic tree revealed that OsAHL proteins can be classified into 2 evolutionary clades. Tissue expression pattern analysis revealed that all of the OsAHL genes might be functionally expressed genes with 3 distinct expression patterns. Nuclear localization analysis using transgenic Arabidopsis showed that several OsAHL proteins are exclusively localized in the nucleus, indicating that they may act as architectural transcription factors to regulate expression of their target genes during plant growth and development.
The Natural Science Research Institute, Myongji University, Yongin, Korea. hobang@snu.ac.kr
Ho Bang
HB
Kim
Chang Jae
CJ
Oh
Yung Chul
YC
Park
Yi
Y
Lee
Sunghwa
S
Choe
Chung Sun
CS
An
Sang-Bong
SB
Choi
D024761:AT-Hook Motifs / Q000235:genetics*; D017360:Arabidopsis / Q000235:genetics / Q000378:metabolism; D030541:Databases, Genetic; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D018745:Genome, Plant; D012275:Oryza / Q000235:genetics* / Q000378:metabolism; D010802:Phylogeny; D010940:Plant Proteins / Q000737:chemistry / Q000145:classification / Q000235:genetics* / Q000378:metabolism; D030821:Plants, Genetically Modified
D010940:Plant Proteins