Mitochondrial import inner membrane translocase subunit Tim21 (TIM21-like protein, mitochondrial)
1_MICTF 6_ LRAVQ 11_ YTEKL 16_ HRSSA 21_ KRLLL 26_ PYIVL 31_ NKACL 36_ KTEPS 41_ LRCGL 46_ QYQKK 51_ TLRPR 56_ CILGV 61_ TQKTI 66_ WTQGP 71_ SPRKA 76_ KEDGS 81_ KQVSV 86_ HRSQR 91_ GGTAV 96_ PTSQK 101_ VKEAG 106_ RDFTY 111_ LIVVL 116_ FGISI 121_ TGGLF 126_ YTIFK 131_ ELFSS 136_ SSPSK 141_ IYGRA 146_ LEKCR 151_ SHPEV 156_ IGVFG 161_ ESVKG 166_ YGEVT 171_ RRGRR 176_ QHVRF 181_ TEYVK 186_ DGLKH 191_ TCVKF 196_ YIEGS 201_ EPGKQ 206_ GTVYA 211_ QVKEN 216_ PGSGE 221_ YDFRY 226_ IFVEI 231_ ESYPR 236_ RTIII 241_EDNRS
1: Participates in the translocation of transit peptide-containing proteins across the mitochondrial inner membrane. Also required for assembly of mitochondrial respiratory chain complex I and complex IV as component of the MITRAC (mitochondrial translation regulation assembly intermediate of cytochrome c oxidase complex) complex. Probably shuttles between the presequence translocase and respiratory-chain assembly intermediates in a process that promotes incorporation of early nuclear-encoded subunits into these complexes