Identification of the alternative splice products encoded by the human protein phosphatase inhibitor-1 gene

Hsin tzu Liu, Hann chorng Kuo, Hsin tzu Liu, Yi Chen Chen, Ji Hsiung Chen, Ta Hsien Lin, Ta hsien Lin, Huey Jen Tsay, Hao Hsuan Jeng, Pai Chi Tsai, Fu kai Shie, Hsien bin Huang

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

We have isolated three major cDNA fragments of protein phosphatase inhibitor-1 from human brain and liver by RT-PCR. The 536 bp fragment encoded the wild-type of inhibitor-1 while two other fragments were alternative splice products of the inhibitor-1 gene, which was confirmed by partial genomic DNA sequencing. The 380 bp fragment encoded an in-frame 51-residue-deleted inhibitor-1, named inhibitor-1α, and the deletion occurred from residue 84 to 134 of inhibitor-1. The 316 bp fragment termed inhibitor-1β was derived from an internal deletion of 536 bp fragment. This deletion resulted in an out of frame shift, allowing the 316 bp fragment that encoded the partial sequence of inhibitor-1. Based on the reported mRNA sequence of inhibitor-1 and evidence from our RT-PCR, we suggested that inhibitor-1β consisted of 132 amino acids of which the N-terminal 61 amino acid sequences were identical to inhibitor-1 while the sequence after residue-61 was markedly different.

原文English
頁(從 - 到)1293-1296
頁數4
期刊Biochemical and Biophysical Research Communications
291
發行號5
DOIs
出版狀態Published - 2002

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