A human mitochondrial ATP-dependent protease that is highly homologous to bacterial Lon protease.
收藏PubMed Central1993-12-01 更新2026-05-16 收录
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https://pmc.ncbi.nlm.nih.gov/articles/PMC47959/
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资源简介:
We have cloned a human ATP-dependent protease that is highly homologous to members of the bacterial Lon protease family. The cloned gene encodes a protein of 963 amino acids with a calculated molecular mass of 106 kDa, slightly higher than that observed by Western blotting the protein from human tissues and cell lines (100 kDa). A single species of mRNA was found for this Lon protease in all human tissues examined. The protease is encoded in the nucleus, and the amino-terminal portion of the protein sequence contains a potential mitochondrial targeting presequence. Immunofluorescence microscopy suggested a predominantly mitochondrial localization for the Lon protease in cultured human cells. A truncated LON gene, in which translation was initiated at Met118 of the coding sequence, was expressed in Escherichia coli and produced a protease that degraded alpha-casein in vitro in an ATP-dependent manner and had other properties similar to E. coli Lon protease. IMAGES:
提供机构:
National Academy of Sciences
创建时间:
1993-12-01



