Identification and characterization of YME1L1, a novel paraplegin-related gene.
A gene responsible for an autosomal recessive form of hereditary spastic paraplegia (SPG7) was recently identified. This gene encodes paraplegin, a mitochondrial protein highly homologous to the yeast mitochondrial AAA proteases Afg3p, Rca1p, and Yme1p, which have both proteolytic and chaperone-like activities at the inner mitochondrial membrane. By screening the expressed sequence tag database, we identified and characterized a novel human gene, YME1L1 (YME1L1-like1, HGMW-approved symbol). This gene encodes a predicted protein of 716 amino acids highly similar to all mitochondrial AAA proteases and in particular to yeast Yme1p. Expression and immunofluorescence studies revealed that YME1L1 and paraplegin share a similar expression pattern and the same subcellular localization in the mitochondrial compartment. YME1L1 may represent a candidate gene for other forms of hereditary spastic paraplegia and possibly for other neurodegenerative disorders.[1]References
- Identification and characterization of YME1L1, a novel paraplegin-related gene. Coppola, M., Pizzigoni, A., Banfi, S., Bassi, M.T., Casari, G., Incerti, B. Genomics (2000) [Pubmed]
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