Molecular characterization and functional analysis of a protease-related protein in Chang-liver cells.
In this study, the cDNA library of Chang-liver cells was immunoscreened using common ADAMs antibody to obtain ADAM related genes. We found one positive clone that was confirmed as a new gene by Blast, which is an uncharacterized helical and coil protein and processes protease activity, and named protease-related protein 1 (ARP1). The submitted GenBank accession number is AY078070. Molecular characterizations of ARP1 were analyzed with appropriate bioinformatics software. To analyse its expression and function, ARP1 was subcloned into glutathione S-transferase fusion plasmid pGEX-2T and expressed by E. coli system. The in vitro expression product of ARP1 was recognized by common ADAMs antibody with western blot. Interestingly, ARP1 cleaves gelatine at pH9.5, which suggests it is an alkaline protease. Semi-quantitative RT-PCR result indicates that ARP1 mRNA is strongly transcribed in the liver and the treated Chang-liver cells.
Wang
Congrui
C
Department of Biochemistry, Xinxiang Medical University, China.
Zhang
Huiyong
H
Feng
Huigen
H
Yang
Baosheng
B
Pramanik
Jogenananda
J
Guo
Zhikun
Z
Lin
Juntang
J
D051722:ADAM Proteins / Q000145:classification / Q000235:genetics* / Q000378:metabolism*; D000595:Amino Acid Sequence; D001483:Base Sequence; D051837:COUP Transcription Factor II / Q000235:genetics / Q000378:metabolism*; D002460:Cell Line; D019295:Computational Biology; D010450:Endopeptidases / Q000145:classification / Q000235:genetics / Q000378:metabolism*; D015723:Gene Library; D015894:Genome, Human; D006801:Humans; D008969:Molecular Sequence Data; D010802:Phylogeny; D011993:Recombinant Fusion Proteins / Q000235:genetics / Q000378:metabolism; D016415:Sequence Alignment
D051722:ADAM Proteins; D051837:COUP Transcription Factor II; D010450:Endopeptidases; D011993:Recombinant Fusion Proteins; C095569:NR2F2 protein, human