HEMA_CVHOC
ID HEMA_CVHOC Reviewed; 424 AA.
AC P30215; Q6TNG0;
DT 01-APR-1993, integrated into UniProtKB/Swiss-Prot.
DT 01-APR-1993, sequence version 1.
DT 03-AUG-2022, entry version 123.
DE RecName: Full=Hemagglutinin-esterase {ECO:0000255|HAMAP-Rule:MF_04207};
DE Short=HE protein {ECO:0000255|HAMAP-Rule:MF_04207};
DE EC=3.1.1.53 {ECO:0000255|HAMAP-Rule:MF_04207};
DE AltName: Full=E3 glycoprotein {ECO:0000255|HAMAP-Rule:MF_04207};
DE Flags: Precursor;
GN Name=HE {ECO:0000255|HAMAP-Rule:MF_04207}; ORFNames=2b;
OS Human coronavirus OC43 (HCoV-OC43).
OC Viruses; Riboviria; Orthornavirae; Pisuviricota; Pisoniviricetes;
OC Nidovirales; Cornidovirineae; Coronaviridae; Orthocoronavirinae;
OC Betacoronavirus; Embecovirus.
OX NCBI_TaxID=31631;
OH NCBI_TaxID=9606; Homo sapiens (Human).
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX PubMed=1727608; DOI=10.1016/0042-6822(92)90089-8;
RA Zhang X.M., Kousoulas K.G., Storz J.;
RT "The hemagglutinin/esterase gene of human coronavirus strain OC43:
RT phylogenetic relationships to bovine and murine coronaviruses and influenza
RT C virus.";
RL Virology 186:318-323(1992).
RN [2]
RP NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RC STRAIN=Isolate ATCC VR-759, and Isolate clinical OC43-Paris;
RX PubMed=15280490; DOI=10.1128/jvi.78.16.8824-8834.2004;
RA St Jean J.R., Jacomy H., Desforges M., Vabret A., Freymuth F., Talbot P.J.;
RT "Human respiratory coronavirus OC43: genetic stability and neuroinvasion.";
RL J. Virol. 78:8824-8834(2004).
RN [3]
RP NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RC STRAIN=Isolate ATCC VR-759;
RX PubMed=15650185; DOI=10.1128/jvi.79.3.1595-1604.2005;
RA Vijgen L., Keyaerts E., Moes E., Thoelen I., Wollants E., Lemey P.,
RA Vandamme A.M., Van Ranst M.;
RT "Complete genomic sequence of human coronavirus OC43: molecular clock
RT analysis suggests a relatively recent zoonotic coronavirus transmission
RT event.";
RL J. Virol. 79:1595-1604(2005).
CC -!- FUNCTION: Structural protein that makes short spikes at the surface of
CC the virus. Contains receptor binding and receptor-destroying
CC activities. Mediates de-O-acetylation of N-acetyl-4-O-acetylneuraminic
CC acid, which is probably the receptor determinant recognized by the
CC virus on the surface of erythrocytes and susceptible cells. This
CC receptor-destroying activity is important for virus release as it
CC probably helps preventing self-aggregation and ensures the efficient
CC spread of the progeny virus from cell to cell. May serve as a secondary
CC viral attachment protein for initiating infection, the spike protein
CC being the major one. May become a target for both the humoral and the
CC cellular branches of the immune system. {ECO:0000255|HAMAP-
CC Rule:MF_04207}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + N-acetyl-9-O-acetylneuraminate = acetate + H(+) + N-
CC acetylneuraminate; Xref=Rhea:RHEA:22600, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:28999, ChEBI:CHEBI:30089,
CC ChEBI:CHEBI:35418; EC=3.1.1.53; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_04207};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + N-acetyl-4-O-acetylneuraminate = acetate + H(+) + N-
CC acetylneuraminate; Xref=Rhea:RHEA:25564, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:29006, ChEBI:CHEBI:30089,
CC ChEBI:CHEBI:35418; EC=3.1.1.53; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_04207};
CC -!- SUBUNIT: Homodimer; disulfide-linked. Forms a complex with the M
CC protein in the pre-Golgi. Associates then with S-M complex to form a
CC ternary complex S-M-HE. {ECO:0000255|HAMAP-Rule:MF_04207}.
CC -!- SUBCELLULAR LOCATION: Virion membrane {ECO:0000255|HAMAP-
CC Rule:MF_04207}; Single-pass type I membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_04207}. Host cell membrane {ECO:0000255|HAMAP-Rule:MF_04207};
CC Single-pass type I membrane protein {ECO:0000255|HAMAP-Rule:MF_04207}.
CC Note=In infected cells becomes incorporated into the envelope of
CC virions during virus assembly at the endoplasmic reticulum and cis
CC Golgi. However, some may escape incorporation into virions and
CC subsequently migrate to the cell surface. {ECO:0000255|HAMAP-
CC Rule:MF_04207}.
CC -!- PTM: N-glycosylated in the host RER. {ECO:0000255|HAMAP-Rule:MF_04207}.
CC -!- SIMILARITY: Belongs to the influenza type C/coronaviruses
CC hemagglutinin-esterase family. {ECO:0000255|HAMAP-Rule:MF_04207}.
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DR EMBL; M76373; AAA45460.1; -; Genomic_RNA.
DR EMBL; AY391777; AAR01014.1; -; Genomic_RNA.
DR EMBL; AY585228; AAT84353.1; -; Genomic_RNA.
DR EMBL; AY585229; AAT84361.1; -; Genomic_RNA.
DR PIR; A39450; HMIHCC.
DR SMR; P30215; -.
DR Proteomes; UP000007552; Genome.
DR Proteomes; UP000100580; Genome.
DR Proteomes; UP000180344; Genome.
DR GO; GO:0020002; C:host cell plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-UniRule.
DR GO; GO:0019031; C:viral envelope; IEA:UniProtKB-UniRule.
DR GO; GO:0055036; C:virion membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0046789; F:host cell surface receptor binding; IEA:UniProtKB-UniRule.
DR GO; GO:0106331; F:sialate 4-O-acetylesterase activity; IEA:UniProtKB-EC.
DR GO; GO:0106330; F:sialate 9-O-acetylesterase activity; IEA:UniProtKB-EC.
DR GO; GO:0001681; F:sialate O-acetylesterase activity; ISS:UniProtKB.
DR GO; GO:0019064; P:fusion of virus membrane with host plasma membrane; IEA:UniProtKB-UniRule.
DR GO; GO:0019058; P:viral life cycle; IMP:CACAO.
DR HAMAP; MF_04207; BETA_CORONA_HE; 1.
DR InterPro; IPR008980; Capsid_hemagglutn.
DR InterPro; IPR042545; HEMA.
DR InterPro; IPR007142; Hemagglutn-estrase_core.
DR InterPro; IPR003860; Hemagglutn-estrase_hemagglutn.
DR Pfam; PF03996; Hema_esterase; 1.
DR Pfam; PF02710; Hema_HEFG; 1.
DR SUPFAM; SSF49818; SSF49818; 1.
PE 3: Inferred from homology;
KW Disulfide bond; Glycoprotein; Hemagglutinin; Host cell membrane;
KW Host membrane; Hydrolase; Membrane; Signal; Transmembrane;
KW Transmembrane helix; Viral envelope protein; Virion.
FT SIGNAL 1..16
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT CHAIN 17..424
FT /note="Hemagglutinin-esterase"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT /id="PRO_0000037144"
FT TOPO_DOM 17..392
FT /note="Virion surface"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT TRANSMEM 393..413
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT TOPO_DOM 414..424
FT /note="Intravirion"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT REGION 7..127
FT /note="Esterase domain 1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT REGION 128..266
FT /note="Receptor binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT REGION 267..379
FT /note="Esterase domain 2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT ACT_SITE 40
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT ACT_SITE 326
FT /note="Charge relay system"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT ACT_SITE 329
FT /note="Charge relay system"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT CARBOHYD 54
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT CARBOHYD 89
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT CARBOHYD 114
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT CARBOHYD 153
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT CARBOHYD 236
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT CARBOHYD 301
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT CARBOHYD 316
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT CARBOHYD 358
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT CARBOHYD 417
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT DISULFID 44..65
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT DISULFID 113..162
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT DISULFID 197..276
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT DISULFID 205..249
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT DISULFID 307..312
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT DISULFID 347..371
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04207"
FT VARIANT 158
FT /note="S -> A (in strain: Isolate ATCC VR-759 and Isolate
FT clinical OC43-Paris)"
FT VARIANT 379
FT /note="N -> I (in strain: Isolate ATCC VR-759 and Isolate
FT clinical OC43-Paris)"
FT VARIANT 403..404
FT /note="VI -> IV (in strain: Isolate ATCC VR-759 and Isolate
FT clinical OC43-Paris)"
FT VARIANT 418
FT /note="G -> V (in strain: Isolate ATCC VR-759 and Isolate
FT clinical OC43-Paris)"
SQ SEQUENCE 424 AA; 47724 MW; EA43A1CCDF8598D7 CRC64;
MFLLPRFILV SCIIGSLGFY NPPTNVVSHV NGDWFLFGDS RSDCNHIVNI NPHNYSYMDL
NPVLCDSGKI SSKAGNSIFR SFHFTDFYNY TGEGQQIIFY EGVNFTPYHA FKCNRSGSND
IWMQNKGLFY TQVYKNMAVY RSLTFVNVPY VYNGSAQSTA LCKSGSLVLN NPAYIAPQAN
SGDYYYKVEA DFYLSGCDEY IVPLCIFNGK FLSNTKYYDD SQYYFNKDTG VIYGLNSTET
ITTGFDLNCY YLVLPSGNYL AISNELLLTV PTKAICLNKR KDFTPVQVVD SRWNNARQSD
NMTAVACQPP YCYFRNSTTN YVGVYDINHG DAGFTSILSG LLYNSPCFSQ QGVFRYDNVS
SVWPLYPYGR CPTAADINNP DLPICVYDPL PVILLGILLG VAVIIIVVLL LYFMVDNGTR
LHDA
