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Overview

Uniprot IDA0A5G2R267
Protein NameMethylthioribulose-1-phosphate dehydratase
Gene NameAPIP
OrganismSus scrofa

Kla Sites from experimental identification

Position Flanking peptide
146 EMIKGIKKCTSGGYY

Function

Catalyzes the dehydration of methylthioribulose-1-phosphate (MTRu-1-P) into 2,3-diketo-5-methylthiopentyl-1-phosphate (DK-MTP-1-P). Functions in the methionine salvage pathway, which plays a key role in cancer, apoptosis, microbial proliferation and inflammation. May inhibit the CASP1-related inflammatory response (pyroptosis), the CASP9-dependent apoptotic pathway and the cytochrome c-dependent and APAF1-mediated cell death

Protein Sequence

10 MSGCHAPEGD 20 CSSRQCLAQD 30 KEHPRYLIPE 40 LCKQFYHLGW 50 VTGTGGGISL 60 KHGNEIYIAP 70 SGVQKERIQP 80 EDMFVCDIDE 90 QDISGPPPHK 100 NLKKSQCTPL 110 FMNAYTMRGA 120 GAVIHTHSKA 130 AVMATLLFPG 140 REFKITHQEM 150 IKGIKKCTSG 160 GYYRYDDMLV 170 VPIIENTPEE 180 DLKERMARAM 190 NEYPDSCAVL 200 VRRHGVYVWG 210 ETWEKAKTMC 220 ECYDYLFDVA 230 VSMKKVGLDP 240 TQLPVGENGI V

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005737 cytoplasm
Molecular Function GO:0042802 identical protein binding
Molecular Function GO:0046570 methylthioribulose 1-phosphate dehydratase activity
Molecular Function GO:0008270 zinc ion binding
Biological Process GO:0006915 apoptotic process
Biological Process GO:0019509 L-methionine salvage from methylthioadenosine
Biological Process GO:0043066 negative regulation of apoptotic process
Biological Process GO:0051289 protein homotetramerization
Biological Process GO:0070269 pyroptotic inflammatory response
Biological Process GO:0070372 regulation of ERK1 and ERK2 cascade

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.