HN_NDVU
ID HN_NDVU Reviewed; 616 AA.
AC P12558;
DT 01-OCT-1989, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-1989, sequence version 1.
DT 07-APR-2021, entry version 113.
DE RecName: Full=Hemagglutinin-neuraminidase;
DE EC=3.2.1.18;
GN Name=HN;
OS Newcastle disease virus (strain Chicken/Northern Ireland/Ulster/67) (NDV).
OC Viruses; Riboviria; Orthornavirae; Negarnaviricota; Haploviricotina;
OC Monjiviricetes; Mononegavirales; Paramyxoviridae; Avulavirinae;
OC Orthoavulavirus; Avian orthoavulavirus 1.
OX NCBI_TaxID=11190;
OH NCBI_TaxID=9031; Gallus gallus (Chicken).
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX PubMed=3351479; DOI=10.1099/0022-1317-69-3-613;
RA Millar N.S., Chambers P., Emmerson P.T.;
RT "Nucleotide sequence of the fusion and haemagglutinin-neuraminidase
RT glycoprotein genes of Newcastle disease virus, strain Ulster: molecular
RT basis for variations in pathogenicity between strains.";
RL J. Gen. Virol. 69:613-620(1988).
RN [2]
RP NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX PubMed=2450424; DOI=10.1016/0042-6822(88)90244-9;
RA Gotoh B., Sakaguchi T., Nishikawa K., Inocencio N.M., Hamaguchi M.,
RA Toyoda T., Nagai Y.;
RT "Structural features unique to each of the three antigenic sites on the
RT hemagglutinin-neuraminidase protein of Newcastle disease virus.";
RL Virology 163:174-182(1988).
RN [3]
RP NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX PubMed=2705297; DOI=10.1016/0042-6822(89)90151-7;
RA Sakaguchi T., Toyoda T., Gotoh B., Inocencio N.M., Kuma K., Miyata T.,
RA Nagai Y.;
RT "Newcastle disease virus evolution. I. Multiple lineages defined by
RT sequence variability of the hemagglutinin-neuraminidase gene.";
RL Virology 169:260-272(1989).
CC -!- FUNCTION: Mediates the viral entry into the host cell together with
CC fusion/F protein. Attaches the virus to sialic acid-containing cell
CC receptors and thereby initiates infection. Binding of HN protein to the
CC receptor induces a conformational change that allows the F protein to
CC trigger virion/cell membranes fusion. {ECO:0000250|UniProtKB:Q91UL0}.
CC -!- FUNCTION: Neuraminidase activity ensures the efficient spread of the
CC virus by dissociating the mature virions from the neuraminic acid
CC containing glycoproteins. {ECO:0000250|UniProtKB:Q91UL0}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Hydrolysis of alpha-(2->3)-, alpha-(2->6)-, alpha-
CC (2->8)- glycosidic linkages of terminal sialic acid residues in
CC oligosaccharides, glycoproteins, glycolipids, colominic acid and
CC synthetic substrates.; EC=3.2.1.18;
CC Evidence={ECO:0000250|UniProtKB:Q91UL0};
CC -!- SUBUNIT: Homodimer. Forms homotetramers. Interacts with fusion/F
CC protein. Interacts with host CG-1B; this interaction inhibits viral
CC adsorption and replication rather than internalization.
CC {ECO:0000250|UniProtKB:Q91UL0}.
CC -!- SUBCELLULAR LOCATION: Virion membrane {ECO:0000250|UniProtKB:Q91UL0};
CC Single-pass type II membrane protein {ECO:0000250|UniProtKB:Q91UL0}.
CC Host cell membrane {ECO:0000250|UniProtKB:Q91UL0}; Single-pass type II
CC membrane protein {ECO:0000250|UniProtKB:Q91UL0}.
CC -!- SIMILARITY: Belongs to the paramyxoviruses hemagglutinin-neuraminidase
CC family. {ECO:0000305}.
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DR EMBL; D00243; BAA00174.1; -; Genomic_RNA.
DR EMBL; M19478; AAA46677.1; -; Genomic_RNA.
DR EMBL; M24707; AAA46657.1; -; Genomic_RNA.
DR PIR; B29823; HNNZU1.
DR PIR; C46328; C46328.
DR PDB; 4FZH; X-ray; 3.50 A; A/B/C/D=124-616.
DR PDBsum; 4FZH; -.
DR SMR; P12558; -.
DR CAZy; GH83; Glycoside Hydrolase Family 83.
DR GO; GO:0020002; C:host cell plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0019031; C:viral envelope; IEA:UniProtKB-KW.
DR GO; GO:0055036; C:virion membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0052794; F:exo-alpha-(2->3)-sialidase activity; IEA:UniProtKB-EC.
DR GO; GO:0052795; F:exo-alpha-(2->6)-sialidase activity; IEA:UniProtKB-EC.
DR GO; GO:0052796; F:exo-alpha-(2->8)-sialidase activity; IEA:UniProtKB-EC.
DR GO; GO:0046789; F:host cell surface receptor binding; IEA:InterPro.
DR GO; GO:0046718; P:viral entry into host cell; IEA:UniProtKB-KW.
DR GO; GO:0019062; P:virion attachment to host cell; IEA:UniProtKB-KW.
DR CDD; cd15469; HN; 1.
DR InterPro; IPR016285; Hemagglutn-neuramid.
DR InterPro; IPR000665; Hemagglutn/HN.
DR InterPro; IPR036278; Sialidase_sf.
DR Pfam; PF00423; HN; 1.
DR PIRSF; PIRSF001072; Hemagglut-neuramid_paramyxoV; 1.
DR SUPFAM; SSF50939; SSF50939; 1.
PE 1: Evidence at protein level;
KW 3D-structure; Glycoprotein; Hemagglutinin; Host cell membrane;
KW Host membrane; Host-virus interaction; Hydrolase; Membrane; Signal-anchor;
KW Transmembrane; Transmembrane helix; Viral attachment to host cell;
KW Viral envelope protein; Virion; Virus entry into host cell.
FT CHAIN 1..616
FT /note="Hemagglutinin-neuraminidase"
FT /id="PRO_0000142618"
FT TOPO_DOM 1..26
FT /note="Intravirion"
FT /evidence="ECO:0000255"
FT TRANSMEM 27..47
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 48..616
FT /note="Virion surface"
FT /evidence="ECO:0000255"
FT REGION 124..152
FT /note="Important for interaction with fusion/F protein"
FT /evidence="ECO:0000250|UniProtKB:Q91UL0"
FT CARBOHYD 119
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000255"
FT CARBOHYD 341
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000250|UniProtKB:Q91UL0"
FT CARBOHYD 433
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000250|UniProtKB:Q91UL0"
FT CARBOHYD 481
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000250|UniProtKB:Q91UL0"
FT CARBOHYD 538
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000255"
FT CARBOHYD 600
FT /note="N-linked (GlcNAc...) asparagine; by host"
FT /evidence="ECO:0000255"
FT VARIANT 74
FT /note="L -> H"
FT VARIANT 74
FT /note="L -> S"
FT VARIANT 259
FT /note="E -> K"
FT VARIANT 438
FT /note="L -> R"
FT VARIANT 495
FT /note="K -> E"
FT VARIANT 555..556
FT /note="EF -> GI"
SQ SEQUENCE 616 AA; 67590 MW; E70D67796F6DDA36 CRC64;
MDRAVSQVAL ENDEREAKNT WRLVFRIAIL LLTVVTLAIS AAALAYSMEA STPSDLIGIP
TAISRAEEKI TSALGSNQDV VDRIYKQVAL ESPLALLNTE STIMNAITSL SYQINGAANS
SGCGAPIHDP DYIGGIGKEL IVDDASDVTS FYPSAFQEHL NFIPAPTTGS GCTRIPSFDM
SATHYCYTHN VILSGCRDHS HSHQYLALGV LRTSATGRVF FSTLHSINLD DTQNRKSCSV
SATPLGCDML CSKVTETEEE DYNSAVPTSM VHGRLGFDGQ YHEKDLDVTT LFEDWVANYP
GVGGGSFIDN RVWFPVYGGL KPNSPSDTAQ EGKYVIYKRY NDTCPDEQDY QIRMAKSSYK
PGRFGGKRVQ QAILSIKVST SLGEDPVLTV PPNTVTLMGA EGRVLTVGTS HFLYQRGSSY
FSPALLYPMT VSNKTATLHS PYTFDAFTRP GSVPCQASAR CPNSCVTGVY TDPYPLVFYR
NHTLRGVFGT MLDDKQARLN PVSAVFDSIS RSRITRVSSS STKAAYTTST CFKVVKTNKT
YCLSIAEISN TLFGEFRIVP LLVEILKDDG VREARAGRLS QLREGWKDDI VSPIFCDAKN
QTEYRRELES YAASWP
