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Overview

Uniprot IDP49888
Protein NameSulfotransferase 1E1
Gene NameSULT1E1
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
213 LIHFLERKPSEELVD

Function

Sulfotransferase that utilizes 3'-phospho-5'-adenylyl sulfate (PAPS) as sulfonate donor to catalyze the sulfate conjugation of estradiol and estrone (PubMed:11006110, PubMed:11884392, PubMed:7779757). Is a key enzyme in estrogen homeostasis, the sulfation of estrogens leads to their inactivation. Also sulfates dehydroepiandrosterone (DHEA), pregnenolone, (24S)-hydroxycholesterol and xenobiotic compounds like ethinylestradiol, equalenin, diethyl stilbesterol and 1-naphthol at significantly lower efficiency (PubMed:11006110, PubMed:19589875). Does not sulfonate cortisol, testosterone and dopamine (PubMed:11006110, PubMed:7779757). May play a role in gut microbiota-host metabolic interaction. O-sulfonates 4-ethylphenol (4-EP), a dietary tyrosine-derived metabolite produced by gut bacteria. The product 4-EPS crosses the blood-brain barrier and may negatively regulate oligodendrocyte maturation and myelination, affecting the functional connectivity of different brain regions associated with the limbic system

Protein Sequence

10 MNSELDYYEK 20 FEEVHGILMY 30 KDFVKYWDNV 40 EAFQARPDDL 50 VIATYPKSGT 60 TWVSEIVYMI 70 YKEGDVEKCK 80 EDVIFNRIPF 90 LECRKENLMN 100 GVKQLDEMNS 110 PRIVKTHLPP 120 ELLPASFWEK 130 DCKIIYLCRN 140 AKDVAVSFYY 150 FFLMVAGHPN 160 PGSFPEFVEK 170 FMQGQVPYGS 180 WYKHVKSWWE 190 KGKSPRVLFL 200 FYEDLKEDIR 210 KEVIKLIHFL 220 ERKPSEELVD 230 RIIHHTSFQE 240 MKNNPSTNYT 250 TLPDEIMNQK 260 LSPFMRKGIT 270 GDWKNHFTVA 280 LNEKFDKHYE 290 QQMKESTLKF RTEI

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005737 cytoplasm
Cellular Component GO:0005829 cytosol
Molecular Function GO:0004062 aryl sulfotransferase activity
Molecular Function GO:0004304 estrone sulfotransferase activity
Molecular Function GO:0047894 flavonol 3-sulfotransferase activity
Molecular Function GO:0005496 steroid binding
Molecular Function GO:0050294 steroid sulfotransferase activity
Molecular Function GO:0008146 sulfotransferase activity
Biological Process GO:0050427 3'-phosphoadenosine 5'-phosphosulfate metabolic process
Biological Process GO:0006711 estrogen catabolic process
Biological Process GO:0008210 estrogen metabolic process
Biological Process GO:0006068 ethanol catabolic process
Biological Process GO:0045600 positive regulation of fat cell differentiation
Biological Process GO:0008202 steroid metabolic process
Biological Process GO:0051923 sulfation

Reference

[1] Cheng Z, Huang H, Li M, Chen Y. Proteomic analysis identifies PFKP lactylation in SW480 colon cancer cells.. iScience 27(1):108645. 2024 Jan 19. PMID: 38155775.