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Overview

Uniprot IDA0A5G2QWB2
Protein NameHeme oxygenase
Gene NameHMOX1
OrganismSus scrofa

Kla Sites from experimental identification

Position Flanking peptide
39 EFMKNFQKGEVTREG

Function

Catalyzes the oxidative cleavage of heme at the alpha-methene bridge carbon, released as carbon monoxide (CO), to generate biliverdin IXalpha, while releasing the central heme iron chelate as ferrous iron. Affords protection against programmed cell death and this cytoprotective effect relies on its ability to catabolize free heme and prevent it from sensitizing cells to undergo apoptosis

Protein Sequence

10 MEHSQPNSVP 20 QDLSEALKEA 30 TKEVHVQAEN 40 AEFMKNFQKG 50 EVTREGFKLV 60 MASLYHIYDA 70 LEEEIEHNKE 80 NPVYTPLYFP 90 EELHRRAALE 100 QDMAFWYGPR 110 WQEAIPYTQA 120 TKRYVRRLQQ 130 VGRFEPELLV 140 AHAYTRYGDL 150 SGGQVLKKIA 160 QKALDLPSSG 170 EGLAFFTFPN 180 VANATKFKQL 190 YRSRMNTLEM 200 TPEVKQRVLE 210 EAKTAFLLNI 220 QLFEEVQELL 230 TQDTKDQRPS 240 QASDVRKRAG 250 SRVQDSTPVT 260 TPRGKPQLSV 270 LSQVPLVRWV 280 LTLSFLVATV AMGLYAM

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005829 cytosol
Cellular Component GO:0005783 endoplasmic reticulum
Cellular Component GO:0005789 endoplasmic reticulum membrane
Cellular Component GO:0005634 nucleus
Cellular Component GO:0048471 perinuclear region of cytoplasm
Cellular Component GO:0005886 plasma membrane
Molecular Function GO:0020037 heme binding
Molecular Function GO:0004392 heme oxygenase (decyclizing) activity
Molecular Function GO:0046872 metal ion binding
Molecular Function GO:0042803 protein homodimerization activity
Molecular Function GO:0005198 structural molecule activity
Biological Process GO:0034605 cellular response to heat
Biological Process GO:0034101 erythrocyte homeostasis
Biological Process GO:0042167 heme catabolic process
Biological Process GO:0006788 heme oxidation
Biological Process GO:0043922 host-mediated suppression of viral transcription
Biological Process GO:0006879 intracellular iron ion homeostasis
Biological Process GO:0060586 multicellular organismal-level iron ion homeostasis
Biological Process GO:1900016 negative regulation of cytokine production involved in inflammatory response
Biological Process GO:1902042 negative regulation of extrinsic apoptotic signaling pathway via death domain receptors
Biological Process GO:0110076 negative regulation of ferroptosis
Biological Process GO:0048662 negative regulation of smooth muscle cell proliferation
Biological Process GO:1903901 negative regulation of viral life cycle
Biological Process GO:0045766 positive regulation of angiogenesis
Biological Process GO:1903589 positive regulation of blood vessel endothelial cell proliferation involved in sprouting angiogenesis
Biological Process GO:0090050 positive regulation of cell migration involved in sprouting angiogenesis
Biological Process GO:0048661 positive regulation of smooth muscle cell proliferation
Biological Process GO:0035094 response to nicotine
Biological Process GO:0006979 response to oxidative stress
Biological Process GO:0002246 wound healing involved in inflammatory response

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.