Molecular cloning and gene expression of endoplasmic reticulum stress proteins in Japanese monkey, Macaca fuscata.
BACKGROUND
Immunoglobulin heavy-chain binding protein (BiP), calreticulin (Crt), and protein disulfide isomerase (PDI), are major resident endoplasmic reticulum (ER) stress proteins which are involved in diverse roles relating to successful folding, assembly, intracellular localization, and degradation of other proteins.


METHODS
In this study, we molecular cloned cDNAs for BiP, Crt, and PDI from Japanese monkey (Macaca fuscata), and analyzed tissue-specific expression of respective genes.


CONCLUSIONS
The lengths of protein-coding regions of these cDNAs for BiP, Crt and PDI are 1965, 1254, and 1533 bp, respectively. Each protein has a signal peptide and a KDEL motif in N- and C-terminal parts respectively, showing its intracellular localization to be the lumen of the ER. These stress proteins are highly conserved, showing that their similarities among mammals are more than 90% in the level of amino acid. The expression of the genes for stress proteins differed among the monkey tissues examined. BiP and PDI gene expression was predominant in secretory tissues such as liver and kidney, and brain tissues. But Crt gene expressed rather ubiquitously in a variety of tissues.
Higashino
A
A
Center for Human Evolution Modeling Research, Primate Research Institute, Kyoto University, Inuyama, Japan. higasino@pri.kyoto-u.ac.jp
Fukuhara
R
R
Tezuka
T
T
Kageyama
T
T
D000595:Amino Acid Sequence; D000818:Animals; D003001:Cloning, Molecular; D004721:Endoplasmic Reticulum / Q000378:metabolism*; D019143:Evolution, Molecular; D005786:Gene Expression Regulation; D008251:Macaca / Q000235:genetics* / Q000378:metabolism*; D008297:Male; D008969:Molecular Sequence Data; D010802:Phylogeny; D011506:Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism*
D011506:Proteins