Search Results

Overview

Uniprot IDA0A5G2RCH3
Protein NameSqualene synthase
Gene NameFDFT1
OrganismSus scrofa

Kla Sites from experimental identification

Position Flanking peptide
27 SSLKTCYKYLNQTSR

Function

Catalyzes the condensation of 2 farnesyl pyrophosphate (FPP) moieties to form squalene. Proceeds in two distinct steps. In the first half-reaction, two molecules of FPP react to form the stable presqualene diphosphate intermediate (PSQPP), with concomitant release of a proton and a molecule of inorganic diphosphate. In the second half-reaction, PSQPP undergoes heterolysis, isomerization, and reduction with NADPH or NADH to form squalene. It is the first committed enzyme of the sterol biosynthesis pathway

Protein Sequence

10 ISSASPTAVC 20 VLCPQDSLSS 30 SLKTCYKYLN 40 QTSRSFAAVI 50 QALDGEMRHA 60 VCIFYLVLRA 70 LDTLEDDMTI 80 SIEKKIPLLH 90 NFHLHLYESD 100 WRFTESKEKD 110 RQVLEDFPTI 120 ALEFRNLAEK 130 YQVVIVDVCR 140 KMGFGMAEFL 150 NKHVTSEREW 160 DKYCHYVAGL 170 VGIGLSRLFS 180 ASELEDPLVG 190 EDTERANSMG 200 LFLQKTNIIR 210 DYLEDQQEGR 220 EFWPQEVWSK 230 YVKKLGDFAK 240 PENVDLAVQC 250 LNELVTSTLH 260 HIPDVITYLS 270 RLRNQSIFNF 280 CAIPQVMAIA 290 TLAACYNNQQ 300 VFKGVVKIRK 310 GQAVTLMMDA 320 TNMPAVKAII 330 HQYMEEIYHR 340 IPDSDPYSAK 350 TRQIISTIRT 360 QNLPNCQLIS 370 RSHYSPIYLS 380 FVMLLAALSW 390 QYLSTLSQVT EDYVQTGEH

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005789 endoplasmic reticulum membrane
Molecular Function GO:0055056 D-glucose transmembrane transporter activity
Molecular Function GO:0046872 metal ion binding
Molecular Function GO:0051996 squalene synthase [NAD(P)H] activity
Biological Process GO:0006695 cholesterol biosynthetic process
Biological Process GO:0045338 farnesyl diphosphate metabolic process

Reference

[1] Fan S, Zhou R, Wen H, Ye H, Ma S et al.. Global profiling of protein lactylome in porcine granulosa cells.. J Ovarian Res 18(1):177. 2025 Aug 8. PMID: 40781717.