Probable histidyl-tRNA synthetase, mitochondrial is an enzyme that in humans is encoded by the HARS2gene.
Aminoacyl-tRNA synthetases are a class of enzymes that charge tRNAs with their cognate amino acids. The protein encoded by this gene is an enzyme belonging to the class II family of aminoacyl-tRNA synthetases. Functioning in the synthesis of histidyl-transfer RNA, the enzyme plays an accessory role in the regulation of protein biosynthesis. The gene is located in a head-to-head orientation with HARS on chromosome five, where the homologous genes share a bidirectional promoter.
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Tsui HW, Mok S, de Souza L, et al. (1993). "Transcriptional analyses of the gene region that encodes human histidyl-tRNA synthetase: identification of a novel bidirectional regulatory element". Gene. 131 (2): 201–8. doi:10.1016/0378-1119(93)90294-D. PMID8406012.