MUC2
entrez
4583
canonical
uniprot
Q02817
canonical
ensembl
ENSG00000293532
resolver
ensp
ENSP00000518846
resolver
enst
ENST00000713550
resolver
genesymbol
MUC2
resolver
genesymbol_syn
SMUC
resolver
hgnc
HGNC:7512
resolver
uniprot
A0A3S8TMF2
resolver
uniprot
Q14878
resolver
uniprot_entry
A0A3S8TMF2_HUMAN
resolver
uniprot_entry
MUC2_HUMAN
resolver
uniprot_sec
Q14878
resolver
amino_acid_sequence
MGLPLARLAAVCLALSLAGGSELQTEGRTRNHGHNVCSTWGNFHYKTFDGDVFRFPGLCDYNFASDCRGSYKEFAVHLKRGPGQAEAPAGVESILLTIKDDTIYLTRHLAVLNGAVVSTPHYSPGLLIEKSDAYTKVYSRAGLTLMWNREDALMLELDTKFRNHTCGLCGDYNGLQSYSEFLSDGVLFSPLEFGNMQKINQPDVVCEDPEEEVAPASCSEHRAECERLLTAEAFADCQDLVPLEPYLRACQQDRCRCPGGDTCVCSTVAEFSRQCSHAGGRPGNWRTATLCPKTCPGNLVYLESGSPCMDTCSHLEVSSLCEEHRMDGCFCPEGTVYDDIGDSGCVPVSQCHCRLHGHLYTPGQEITNDCEQCVCNAGRWVCKDLPCPGTCALEGGSHITTFDGKTYTFHGDCYYVLAKGDHNDSYALLGELAPCGSTDKQTCLKTVVLLADKKKNVVVFKSDGSVLLNELQVNLPHVTASFSVFRPSSYHIMVSMAIGVRLQVQLAPVMQLFVTLDQASQGQVQGLCGNFNGLEGDDFKTASGLVEATGAGFANTWKAQSSCHDKLDWLDDPCSLNIESANYAEHWCSLLKKTETPFGRCHSAVDPAEYYKRCKYDTCNCQNNEDCLCAALSSYARACTAKGVMLWGWREHVCNKDVGSCPNSQVFLYNLTTCQQTCRSLSEADSHCLEGFAPVDGCGCPDHTFLDEKGRCVPLAKCSCYHRGLYLEAGDVVVRQEERCVCRDGRLHCRQIRLIGQSCTAPKIHMDCSNLTALATSKPRALSCQTLAAGYYHTECVSGCVCPDGLMDDGRGGCVVEKECPCVHNNDLYSSGAKIKVDCNTCTCKRGRWVCTQAVCHGTCSIYGSGHYITFDGKYYDFDGHCSYVAVQDYCGQNSSLGSFSIITENVPCGTTGVTCSKAIKIFMGRTELKLEDKHRVVIQRDEGHHVAYTTREVGQYLVVESSTGIIVIWDKRTTVFIKLAPSYKGTVCGLCGNFDHRSNNDFTTRDHMVVSSELDFGNSWKEAPTCPDVSTNPEPCSLNPHRRSWAEKQCSILKSSVFSICHSKVDPKPFYEACVHDSCSCDTGGDCECFCSAVASYAQECTKEGACVFWRTPDLCPIFCDYYNPPHECEWHYEPCGNRSFETCRTINGIHSNISVSYLEGCYPRCPKDRPIYEEDLKKCVTADKCGCYVEDTHYPPGASVPTEETCKSCVCTNSSQVVCRPEEGKILNQTQDGAFCYWEICGPNGTVEKHFNICSITTRPSTLTTFTTITLPTTPTTFTTTTTTTTPTSSTVLSTTPKLCCLWSDWINEDHPSSGSDDGDRETFDGVCGAPEDIECRSVKDPHLSLEQLGQKVQCDVSVGFICKNEDQFGNGPFGLCYDYKIRVNCCWPMDKCITTPSPPTTTPSPPPTSTTTLPPTTTPSPPTTTTTTPPPTTTPSPPITTTTTPPPTTTPSPPISTTTTPPPTTTPSPPTTTPSPPTTTPSPPTTTTTTPPPTTTPSPPTTTPITPPASTTTLPPTTTPSPPTTTTTTPPPTTTPSPPTTTPITPPTSTTTLPPTTTPSPPPTTTTTPPPTTTPSPPTTTTPSPPTITTTTPPPTTTPSPPTTTTTTPPPTTTPSPPTTTPITPPTSTTTLPPTTTPSPPPTTTTTPPPTTTPSPPTTTTPSPPITTTTTPPPTTTPSSPITTTPSPPTTTMTTPSPTTTPSSPITTTTTPSSTTTPSPPPTTMTTPSPTTTPSPPTTTMTTLPPTTTSSPLTTTPLPPSITPPTFSPFSTTTPTTPCVPLCNWTGWLDSGKPNFHKPGGDTELIGDVCGPGWAANISCRATMYPDVPIGQLGQTVVCDVSVGLICKNEDQKPGGVIPMAFCLNYEINVQCCECVTQPTTMTTTTTENPTPTPITTTTTVTPTPTPTSTQSTTPTPITTTNTVTPTPTPTGTQTPTPTPITTTTTMVTPTPTITSTQTPTPTPITTTTVTPTPTPTSTQRTTPTSITTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQTPTTTPISTTTMVTPTPTPTGTQTLTPTPITTTTTVTPTPTPTGTQTPTSTPISTTTTVTPTPTPTGTQTPTLTPITTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTKSTTPTSITTTTMVTPTPPPTGTQTPTTTPITTTTTVTPTPTPTGTQTPTPTPITTTTTVTPTPTPTGTQTPTSTPITTNTTVTPTPTPTGTPSTTLTPITTTTMVTPTPTPTGTQTPTSTPISTTTTVTPTPTPTGTQTPTPTPISTTTTVTPTPTPTSTQTPTTTPITTTTTVTPNPTPTGTQTPTTTPITTTTTVTPTPTPTGTQTPTTTPISTTTTVTPTPTPTGTQTPTTTAITTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTSTPISNTTTVTPTPTPTGTQTPTVTPITTTTTVTPTRTPTGTKSTTPTSITTTTMVTPTPTPTGTHTPTTTPITTTTTVTPTPTPTGTQTPTPTPITTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTTTPITTNTTVTPTPTPTGTQTPTTVLITTTTTMTPTPTPTSTKSTTVTPITTTTTVTPTPTPTGTQSTTLTPITTTTTVTPTPTPTGTQTPTTTPISTTTTVIPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTSTPISTTTTVTPTATPTGTQTPTLTPITTTTTVTSTPTPTGTQTPTPTPITTTTTVTPTPTPTSTQTPTSTPITTTTTVTPTPTPTGTQTPTTTHITTTTTVTPTPTPTGTQAPTPTAITTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQSPTPTAITTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQSTTLTPITTTTTVTPIPTPTGTQTPTSTPITTTITVTPTPTPTGTQTPTPTPISTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQTPTTTPISTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTPTPITTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTPTPITTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQSTTLTPITTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTGTQTPTPTPISTTTTVTPTPTPTGTQTPTMTPITTTTTVTPTPTPTGTQTPTTTPISTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQSTTLTPITTTTTVTPTPTPTGTQTPTPTPISTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQTPTTTPISTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQAPTPTAITTTTTVTPTPTPTGTQTPTTTPITTTTMVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTPTPISTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQTPTTTPISTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTPTPITTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQSTTLTPITTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTPTPISTTSTVTPTPTPTGTQTPTMTPITTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTMTPITTTTTVTPTPTPTGTQAPTPTAITTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQSTTLTPITTTTTVTPTPTPTGTQTPTPTPISTTTTVTPTPTPTGTQTPTMTPITTTTTVTPTPTPTGTQTPTTTPISTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQTPTTTPISTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQTPTTTPISTTTTVTPTPTPTGTQTPTSTPITTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQAPTPTAITTTSTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQSPTPTAITTTTTVTPTPTPTGTQTPTLTPITTTTTVTPTPTPTGTQTPTPTPISTTTTVTPTPTPTGTQTPTTTPITTTTTVTPTPTPTGTQTPTTVLITTTTTMTPTPTPTSTKSTTVTPITTTTTVTATPTPTGTQTPTMIPISTTTTVTPTPTPTTGSTGPPTHTSTAPIAELTTSNPPPESSTPQTSRSTSSPLTESTTLLSTLPPAIEMTSTAPPSTPTAPTTTSGGHTLSPPPSTTTSPPGTPTRGTTTGSSSAPTPSTVQTTTTSAWTPTPTPLSTPSIIRTTGLRPYPSSVLICCVLNDTYYAPGEEVYNGTYGDTCYFVNCSLSCTLEFYNWSCPSTPSPTPTPSKSTPTPSKPSSTPSKPTPGTKPPECPDFDPPRQENETWWLCDCFMATCKYNNTVEIVKVECEPPPMPTCSNGLQPVRVEDPDGCCWHWECDCYCTGWGDPHYVTFDGLYYSYQGNCTYVLVEEISPSVDNFGVYIDNYHCDPNDKVSCPRTLIVRHETQEVLIKTVHMMPMQVQVQVNRQAVALPYKKYGLEVYQSGINYVVDIPELGVLVSYNGLSFSVRLPYHRFGNNTKGQCGTCTNTTSDDCILPSGEIVSNCEAAADQWLVNDPSKPHCPHSSSTTKRPAVTVPGGGKTTPHKDCTPSPLCQLIKDSLFAQCHALVPPQHYYDACVFDSCFMPGSSLECASLQAYAALCAQQNICLDWRNHTHGACLVECPSHREYQACGPAEEPTCKSSSSQQNNTVLVEGCFCPEGTMNYAPGFDVCVKTCGCVGPDNVPREFGEHFEFDCKNCVCLEGGSGIICQPKRCSQKPVTHCVEDGTYLATEVNPADTCCNITVCKCNTSLCKEKPSVCPLGFEVKSKMVPGRCCPFYWCESKGVCVHGNAEYQPGSPVYSSKCQDCVCTDKVDNNTLLNVIACTHVPCNTSCSPGFELMEAPGECCKKCEQTHCIIKRPDNQHVILKPGDFKSDPKNNCTFFSCVKIHNQLISSVSNITCPNFDASICIPGSITFMPNGCCKTCTPRNETRVPCSTVPVTTEVSYAGCTKTVLMNHCSGSCGTFVMYSAKAQALDHSCSCCKEEKTSQREVVLSCPNGGSLTHTYTHIESCQCQDTVCGLPTGTSRRARRSPRHLGSG
uniprot
proteins
function
FUNCTION: Coats the epithelia of the intestines and other mucus membrane-containing organs to provide a protective, lubricating barrier against particles and infectious agents at mucosal surfaces (PubMed:17058067, PubMed:19432394, PubMed:33031746). Major constituent of the colon mucus, which is mainly formed by large polymeric networks of MUC2 secreted by goblet cells that cover the exposed surfaces of intestine (PubMed:19432394, PubMed:33031746). MUC2 networks form hydrogels that guard the underlying epithelium from pathogens and other hazardous matter entering from the outside world, while permitting nutrient absorption and gas exchange (PubMed:33031746, PubMed:36206754). Acts as a divalent copper chaperone that protects intestinal cells from copper toxicity and facilitates nutritional copper unptake into cells (PubMed:36206754). Binds both Cu(2+) and its reduced form, Cu(1+), at two juxtaposed binding sites: Cu(2+), once reduced to Cu(1+) by vitamin C (ascorbate) or other dietary antioxidants, transits to the other binding site (PubMed:36206754). MUC2-bound Cu(1+) is protected from oxidation in aerobic environments, and can be released for nutritional delivery to cells (PubMed:36206754). Mucin gels store antimicrobial molecules that participate in innate immunity (PubMed:33031746). Mucin glycoproteins also house and feed the microbiome, lubricate tissue surfaces, and may facilitate the removal of contaminants and waste products from the body (PubMed:33031746). Goblet cells synthesize two forms of MUC2 mucin that differ in branched chain O-glycosylation and the site of production in the colon: a (1) 'thick' mucus that wraps the microbiota to form fecal pellets is produced in the proximal, ascending colon (By similarity). 'Thick' mucus transits along the descending colon and is lubricated by a (2) 'thin' MUC2 mucus produced in the distal colon which adheres to the 'thick' mucus (By similarity). {ECO:0000250|UniProtKB:Q80Z19, ECO:0000269|PubMed:17058067, ECO:0000269|PubMed:19432394, ECO:0000269|PubMed:33031746, ECO:0000269|PubMed:36206754}.
uniprot
proteins
mass_dalton
550850
uniprot
proteins
mutagenesis
MUTAGEN 32; /note="H->A: Decreased binding to Cu(2+)."; /evidence="ECO:0000269|PubMed:36206754"; MUTAGEN 34; /note="H->A,R: Slightly Decreased binding to Cu(2+)."; /evidence="ECO:0000269|PubMed:36206754"; MUTAGEN 146; /note="M->L: Decreased binding to Cu(1+) without affecting binding to Cu(2+). Abolished binding to Cu(1+); when associated with L-154 and V-326."; /evidence="ECO:0000269|PubMed:36206754"; MUTAGEN 154; /note="M->L: Decreased binding to Cu(1+) without affecting binding to Cu(2+). Abolished binding to Cu(1+); when associated with L-146 and V-326."; /evidence="ECO:0000269|PubMed:36206754"; MUTAGEN 277; /note="H->A: Decreased binding to Cu(2+)."; /evidence="ECO:0000269|PubMed:36206754"; MUTAGEN 322; /note="E->A: Decreased binding to Cu(2+)."; /evidence="ECO:0000269|PubMed:36206754"; MUTAGEN 326; /note="M->V: Decreased binding to Cu(1+) without affecting binding to Cu(2+). Abolished binding to Cu(1+); when associated with L-146 and L-154."; /evidence="ECO:0000269|PubMed:36206754"; MUTAGEN 1088; /note="C->A: Does not abolish homodimerization. Does not abolish ability to form filaments; when associated with A-1130."; /evidence="ECO:0000269|PubMed:33031746"; MUTAGEN 1130; /note="C->A: Impaired formation of intermolecular disulfide bonds; inducing a mixture of monomers and homodimers. Does not abolish ability to form filaments; when associated with A-1088."; /evidence="ECO:0000269|PubMed:33031746
uniprot
proteins
post_translational_modification
PTM: O-glycosylated (PubMed:11445551, PubMed:33031746). O-glycosylation is required for mucin assembly (PubMed:33031746). Goblet cells synthesize two forms of mucin that differ in branched chain O-glycosylation and the site of production in the colon (By similarity). {ECO:0000250|UniProtKB:Q80Z19, ECO:0000269|PubMed:11445551, ECO:0000269|PubMed:33031746}.; PTM: May undergo proteolytic cleavage in the outer mucus layer of the colon, contributing to the expanded volume and loose nature of this layer which allows for bacterial colonization in contrast to the inner mucus layer which is dense and devoid of bacteria. {ECO:0000250|UniProtKB:Q80Z19}.; PTM: At low pH of 6 and under, undergoes autocatalytic cleavage in vitro in the N-terminal region of the fourth VWD domain. It is likely that this also occurs in vivo and is triggered by the low pH of the late secretory pathway. {ECO:0000269|PubMed:12582180}.
uniprot
proteins
pubmed
11445551
uniprot
proteins
pubmed
12374796
uniprot
proteins
pubmed
12582180
uniprot
proteins
pubmed
1400449
uniprot
proteins
pubmed
1550588
uniprot
proteins
pubmed
16554811
uniprot
proteins
pubmed
17058067
uniprot
proteins
pubmed
18327567
uniprot
proteins
pubmed
18669648
uniprot
proteins
pubmed
1885763
uniprot
proteins
pubmed
19359471
uniprot
proteins
pubmed
19432394
uniprot
proteins
pubmed
2703501
uniprot
proteins
pubmed
31310764
uniprot
proteins
pubmed
33031746
uniprot
proteins
pubmed
35377815
uniprot
proteins
pubmed
36206754
uniprot
proteins
pubmed
8300571
uniprot
proteins
sequence_length
5289
uniprot
proteins
subcellular_location
SUBCELLULAR LOCATION: Secreted {ECO:0000269|PubMed:33031746}. Note=In the intestine, secreted into the inner and outer mucus layers (By similarity). Before secretion, mucin polymers are stored in dedicated secretory vesicles (PubMed:33031746). {ECO:0000250|UniProtKB:Q80Z19, ECO:0000269|PubMed:33031746}.
uniprot
proteins