Aliases for PTRH2 Gene
External Ids for PTRH2 Gene
Previous GeneCards Identifiers for PTRH2 Gene
The protein encoded by this gene is a mitochondrial protein with two putative domains, an N-terminal mitochondrial localization sequence, and a UPF0099 domain. In vitro assays suggest that this protein possesses peptidyl-tRNA hydrolase activity, to release the peptidyl moiety from tRNA, thereby preventing the accumulation of dissociated peptidyl-tRNA that could reduce the efficiency of translation. This protein also plays a role regulating cell survival and death. It promotes survival as part of an integrin-signaling pathway for cells attached to the extracellular matrix (ECM), but also promotes apoptosis in cells that have lost their attachment to the ECM, a process called anoikos. After loss of cell attachment to the ECM, this protein is phosphorylated, is released from the mitochondria into the cytosol, and promotes caspase-independent apoptosis through interactions with transcriptional regulators. This gene has been implicated in the development and progression of tumors, and mutations in this gene have been associated with an infantile multisystem neurologic, endocrine, and pancreatic disease (INMEPD) characterized by intellectual disability, postnatal microcephaly, progressive cerebellar atrophy, hearing impairment, polyneuropathy, failure to thrive, and organ fibrosis with exocrine pancreas insufficiency (PMID: 25574476). Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2015]
GeneCards Summary for PTRH2 Gene
PTRH2 (Peptidyl-TRNA Hydrolase 2) is a Protein Coding gene. Diseases associated with PTRH2 include infantile-onset multisystem neurologic, endocrine, and pancreatic disease and intellectual disability. Among its related pathways are Signaling by GPCR and Mesenchymal Stem Cell Differentiation Pathways and Lineage-specific Markers. GO annotations related to this gene include aminoacyl-tRNA hydrolase activity.
UniProtKB/Swiss-Prot for PTRH2 Gene
The natural substrate for this enzyme may be peptidyl-tRNAs which drop off the ribosome during protein synthesis.
Promotes caspase-independent apoptosis by regulating the function of two transcriptional regulators, AES and TLE1.