Mitochondrial translation initiation factor 2 (MTIF2)

Mitochondrial translation initiation factor 2 (MTIF2) is a nuclear-encoded, mitochondrial-localized GTPase essential for the initiation of protein synthesis within mitochondria[1][2][6][9]. It facilitates binding of the initiator tRNA (formylmethionyl-tRNA) to the small subunit of the mitochondrial ribosome, and protects this tRNA from spontaneous hydrolysis[9]. MTIF2 operates in a GTP-dependent manner and is structurally and functionally analogous to bacterial IF-2 but contains mitochondria-specific insertions and adaptations[5][9]. Dysfunction of MTIF2 has been linked to disorders of mitochondrial oxidative phosphorylation[3]. Notes: - MTIF2 is a fundamental translation factor, not a classical drug target such as a receptor, enzyme, or transporter, and no direct pharmacological modulators or drugs are currently known. - No evidence for its direct use as a biomarker or mechanistic drug target is available in current literature. - Associated disease roles are limited to rare, inherited mitochondrial disorders due to defects in mitochondrial protein synthesis[3].

Other names

Translation initiation factor IF-2, mitochondrialIF-2(Mt)IF-2MtIF2(mt)IF-2mtIF2MMTIF2