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Open AccessArticle

Molecular Cloning and Characterization of Carbonic Anhydrase XII from Pufferfish (Takifugu rubripes)

1
Department of Fisheries Science, College of Fisheries and Ocean Sciences, Chonnam National University, 50, Daehak-ro, Yeosu, Jeonnam 59626, Korea
2
Department of Biomedical and Electronic Engineering, College of Engineering, Chonnam National University, Yeosu, Jeonnam 59626, Korea
3
Department of Horticulture, College of Life Science and Natural Resources, Sunchon National University, 255, Jungang-ro, Suncheon-Si, Jeollanam-do 57922, Korea
4
Department of Food Science, College of Life Science and Natural Resources, Sunchon National University, 255, Jungang-ro, Suncheon-Si, Jeollanam-do 57922, Korea
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2018, 19(3), 842; https://doi.org/10.3390/ijms19030842
Received: 2 February 2018 / Revised: 10 March 2018 / Accepted: 12 March 2018 / Published: 13 March 2018
(This article belongs to the Section Biochemistry)
In this study, an 1888-bp carbonic anhydrase XII (CA XII) sequence was cloned from the brain of the pufferfish, Takifugu rubripes. The cloned sequence contained a coding region of 1470-bp, which was predicted to translate into a protein of 490 amino acid residues. The predicted protein showed between 68–56% identity with the large yellow croaker (Larimichthys crocea), tilapia (Oreochromis niloticus), and Asian arowana (Scleropages formosus) CA XII proteins. It also exhibited 36% and 53% identity with human CA II and CA XII, respectively. The cloned sequence contained a 22 amino acid NH2-terminal signal sequence and three Asn-Xaa-Ser/Thr sequons, among which one was potentially glycosylated. Four cysteine residues were also identified (Cys-21, Cys-201, Cys-355, and Cys-358), two of which (Cys-21 and Cys-201) could potentially form a disulfide bond. A 22-amino acid COOH-terminal cytoplasmic tail containing a potential site for phosphorylation by protein kinase A was also found. The cloned sequence might be a transmembrane protein, as predicted from in silico and phylogenetic analyses. The active site analysis of the predicted protein showed that its active site residues were highly conserved with tilapia CA XII protein. Homology modeling of the pufferfish CA XII was done using the crystal structure of the extracellular domain of human carbonic anhydrase XII at 1.55 Å resolution as a template. Semi-quantitative reverse transcription (RT)-PCR, quantitative PCR (q-PCR), and in situ hybridization confirmed that pufferfish CA XII is highly expressed in the brain. View Full-Text
Keywords: pufferfish; Takifugu rubripes; brain tissue; CA XII pufferfish; Takifugu rubripes; brain tissue; CA XII
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MDPI and ACS Style

Sumi, K.R.; Kim, S.C.; Howlader, J.; Lee, W.K.; Choi, K.S.; Kim, H.-T.; Park, J.-I.; Nou, I.-S.; Kho, K.H. Molecular Cloning and Characterization of Carbonic Anhydrase XII from Pufferfish (Takifugu rubripes). Int. J. Mol. Sci. 2018, 19, 842. https://doi.org/10.3390/ijms19030842

AMA Style

Sumi KR, Kim SC, Howlader J, Lee WK, Choi KS, Kim H-T, Park J-I, Nou I-S, Kho KH. Molecular Cloning and Characterization of Carbonic Anhydrase XII from Pufferfish (Takifugu rubripes). International Journal of Molecular Sciences. 2018; 19(3):842. https://doi.org/10.3390/ijms19030842

Chicago/Turabian Style

Sumi, Kanij R.; Kim, Soo C.; Howlader, Jewel; Lee, Won K.; Choi, Kap S.; Kim, Hoy-Taek; Park, Jong-In; Nou, Ill-Sup; Kho, Kang H. 2018. "Molecular Cloning and Characterization of Carbonic Anhydrase XII from Pufferfish (Takifugu rubripes)" Int. J. Mol. Sci. 19, no. 3: 842. https://doi.org/10.3390/ijms19030842

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