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Overview

Uniprot IDB0BMT9
Protein NameSulfide:quinone oxidoreductase, mitochondrial
Gene NameSqor
OrganismRattus norvegicus

Kla Sites from experimental identification

Position Flanking peptide
241 GTIFGVKKYADALQE

Function

Catalyzes the oxidation of hydrogen sulfide with the help of a quinone, such as ubiquinone-10, giving rise to thiosulfate and ultimately to sulfane (molecular sulfur) atoms. Requires an additional electron acceptor; can use sulfite, sulfide or cyanide (in vitro). It is believed the in vivo electron acceptor is glutathione

Protein Sequence

10 MAPLVAVVSS 20 PRARLFACFL 30 RLGTQQAGPL 40 QLHTGACCTA 50 KNHYEVLVLG 60 GGSGGITMAT 70 RMKRRVGAEN 80 VAIVEPSERH 90 FYQPIWTLVG 100 AGAKELSSSD 110 RSTLSVIPSG 120 VQWIQDRVAE 130 LNPDQNCIRT 140 DNGKEISYRY 150 LIIALGIQLD 160 YEKIKGLPEG 170 FAYPKIGSNY 180 SVKTVEKTWK 190 ALQDFKEGNA 200 LFTFPNTPVK 210 CAGAPQKIMY 220 LSEAYFRKTG 230 KRSKANIIFN 240 TALGTIFGVK 250 KYADALQEII 260 RERNVSVNYK 270 HNLIEVRADK 280 QEAVFENLDK 290 PGETHVIHYE 300 MLHVTPPMSS 310 PDVLKRSPVA 320 DSAGWVDVDK 330 ETLQHKKYPN 340 VFGIGDCTNL 350 PTSKTAAAVA 360 AQSGILDRTI 370 SLIMKNQTPT 380 KKYDGYTSCP 390 LVTGYNRVIL 400 AEFDYTAQPL 410 ETFPFDQSKE 420 RISMYLMKAD 430 MMPFLYWNMM 440 LRGYWGGPAF 450 LRKLFHLGLS

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005743 mitochondrial inner membrane
Cellular Component GO:0005739 mitochondrion
Molecular Function GO:0071949 FAD binding
Molecular Function GO:0106436 glutathione-dependent sulfide quinone oxidoreductase activity
Molecular Function GO:0048038 quinone binding
Molecular Function GO:0070224 sulfide:quinone oxidoreductase activity
Biological Process GO:0070221 sulfide oxidation, using sulfide:quinone oxidoreductase

Reference

[1] Sheng L, Xu H, Wang Y, Ni J, Xiang T et al.. Systematic analysis of lysine lactylation in nucleus pulposus cells.. iScience 27(11):111157. 2024 Nov 15. PMID: 39524337.