title: Molecular cloning and characterization of a hypoxia-responsive CITED3 cDNA from grass carp.
abstract: We have isolated a 1586-bp full-length CITED3 cDNA from grass carp which specifies for a cAMP-responsive element-binding protein/p300-interacting transactivator with glutamic acid (E)/aspartic acid (D)-rich C-terminal domain protein. The cDNA, designated as gcCITED3, has an open reading frame of 762 bp and encodes a protein of 253 amino acids with a predicted molecular mass of 28.3 kDa and pI of 6.4. Pairwise comparison showed that gcCITED3 shares high sequence identity with the CITED3 of zebrafish (94%), chicken (72%) and Xenopus (59%). Northern blot analysis indicated that gcCITED3 is most highly expressed and responsive to hypoxia in the carp kidney. Hypoxic induction was also observed in heart, albeit at a lower level. This is the first report on the isolation of a hypoxia-responsive CITED3 gene from fish.
authors.affiliation: Department of Biology and Chemistry and Centre for Coastal Pollution and Conservation, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong, PR China.
authors.forename: P K S
authors.initials: PK
authors.lastname: Ng
authors.forename: R S S
authors.initials: RS
authors.lastname: Wu
authors.forename: Z P
authors.initials: ZP
authors.lastname: Zhang
authors.forename: H O L
authors.initials: HO
authors.lastname: Mok
authors.forename: D J
authors.initials: DJ
authors.lastname: Randall
authors.forename: R Y C
authors.initials: RY
authors.lastname: Kong
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D015152:Blotting, Northern; D002347:Carps / Q000235:genetics*; D003001:Cloning, Molecular; D029941:Fish Proteins / Q000737:chemistry / Q000235:genetics*; D020869:Gene Expression Profiling; D006801:Humans; D057927:Hydrophobic and Hydrophilic Interactions; D000860:Hypoxia / Q000235:genetics*; D008969:Molecular Sequence Data; D010802:Phylogeny; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D015534:Trans-Activators / Q000235:genetics*
chemical_list: D029941:Fish Proteins; D012333:RNA, Messenger; D015534:Trans-Activators