In silico cloning, expression and phylogenetic analysis of pig GATA-3 gene.
Pig GATA-3 cDNA was obtained by reverse transcription polymerase chain reaction (RT-PCR), using in silico cloning strategy based on pig dbEST. The length of pig GATA-3 cDNA is 1,760 bp containing a 1,335 bp open reading frame (ORF), which encodes a 444 amino acid protein. Semi-quantitative RT-PCR analysis of GATA-3 mRNA expression was done using the total RNAs from different normal tissues of a large white pig. The GATA-binding family of transcription factors comprised of a subgroup of DNA-binding proteins that both bound the consensus GATA motif and contained the class IV zinc finger motif. The molecular evolution tree was constructed based on the GATA-3 amino acid sequence and class IV zinc finger motif using mega 3.1. Phylogeny analysis of GATA factors isolated from vertebrates suggested that the six distinct vertebrate GATAs had descended from a common ancestral sequence, and the topology also suggested multiple modes of evolution including gene duplication and class IV zinc finger motif recombination. These data helped the authors in illuminating the pathways of divergent and convergent evolution of the GATA-binding family of transcription factors.
Yu
Hao
H
Animal Science College, Northeast Agricultural University, Harbin 150030, China.
Li
Jingfen
J
Li
Li
L
Song
Yuefen
Y
Yang
Xiuqin
X
Ding
Linlin
L
Liu
Di
D
D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D019295:Computational Biology; D019143:Evolution, Molecular; D050990:GATA3 Transcription Factor / Q000737:chemistry / Q000235:genetics*; D005786:Gene Expression Regulation; D006801:Humans; D008969:Molecular Sequence Data; D010802:Phylogeny; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA; D034421:Sus scrofa / Q000235:genetics*; D016335:Zinc Fingers
D050990:GATA3 Transcription Factor; D012333:RNA, Messenger