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Overview

Uniprot IDQ8TD22
Protein NameSideroflexin-5
Gene NameSFXN5
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
190 VLVQKANKFTPATRL

Function

Mitochondrial amino-acid transporter (By similarity). Transports citrate (By similarity). Does not act as a serine transporter: not able to mediate transport of serine into mitochondria (By similarity) (PubMed:30442778). In brown adipose tissue, plays a role in the regulation of UCP1-dependent thermogenesis probably by supporting mitochondrial glycerol-3-phosphate utilization (By similarity)

Protein Sequence

10 MADTATTASA 20 AAASAASASS 30 DAPPFQLGKP 40 RFQQTSFYGR 50 FRHFLDIIDP 60 RTLFVTERRL 70 REAVQLLEDY 80 KHGTLRPGVT 90 NEQLWSAQKI 100 KQAILHPDTN 110 EKIFMPFRMS 120 GYIPFGTPIV 130 VGLLLPNQTL 140 ASTVFWQWLN 150 QSHNACVNYA 160 NRNATKPSPA 170 SKFIQGYLGA 180 VISAVSIAVG 190 LNVLVQKANK 200 FTPATRLLIQ 210 RFVPFPAVAS 220 ANICNVVLMR 230 YGELEEGIDV 240 LDSDGNLVGS 250 SKIAARHALL 260 ETALTRVVLP 270 MPILVLPPIV 280 MSMLEKTALL 290 QARPRLLLPV 300 QSLVCLAAFG 310 LALPLAISLF 320 PQMSEIETSQ 330 LEPEIAQATS 340 SRTVVYNKGL

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005743 mitochondrial inner membrane
Cellular Component GO:0005739 mitochondrion
Molecular Function GO:0015137 citrate transmembrane transporter activity
Molecular Function GO:0015075 monoatomic ion transmembrane transporter activity
Biological Process GO:0006865 amino acid transport
Biological Process GO:0015746 citrate transport
Biological Process GO:1990542 mitochondrial transmembrane transport
Biological Process GO:0120162 positive regulation of cold-induced thermogenesis

Reference

[1] Hong H, Chen X, Wang H, Gu X, Yuan Y et al.. Global profiling of protein lysine lactylation and potential target modified protein analysis in hepatocellular carcinoma.. Proteomics 23(9):e2200432. 2023 May. PMID: 36625413.