Aliases for MBTPS1 Gene
External Ids for MBTPS1 Gene
Previous GeneCards Identifiers for MBTPS1 Gene
This gene encodes a member of the subtilisin-like proprotein convertase family, which includes proteases that process protein and peptide precursors trafficking through regulated or constitutive branches of the secretory pathway. The encoded protein undergoes an initial autocatalytic processing event in the ER to generate a heterodimer which exits the ER and sorts to the cis/medial-Golgi where a second autocatalytic event takes place and the catalytic activity is acquired. It encodes a type 1 membrane bound protease which is ubiquitously expressed and regulates cholesterol or lipid homeostasis via cleavage of substrates at non-basic residues. Mutations in this gene may be associated with lysosomal dysfunction. [provided by RefSeq, Feb 2014]
GeneCards Summary for MBTPS1 Gene
MBTPS1 (Membrane Bound Transcription Factor Peptidase, Site 1) is a Protein Coding gene. Among its related pathways are Regulation of cholesterol biosynthesis by SREBP (SREBF) and Protein processing in endoplasmic reticulum. Gene Ontology (GO) annotations related to this gene include serine-type endopeptidase activity and endopeptidase activity.
UniProtKB/Swiss-Prot for MBTPS1 Gene
Serine protease that catalyzes the first step in the proteolytic activation of the sterol regulatory element-binding proteins (SREBPs). Other known substrates are BDNF, GNPTAB and ATF6. Cleaves after hydrophobic or small residues, provided that Arg or Lys is in position P4. Cleaves known substrates after Arg-Ser-Val-Leu (SERBP-2), Arg-His-Leu-Leu (ATF6), Arg-Gly-Leu-Thr (BDNF) and its own propeptide after Arg-Arg-Leu-Leu. Mediates the protein cleavage of GNPTAB into subunit alpha and beta, thereby participating in biogenesis of lysosomes.