ID   IFNA3_CANLF             Reviewed;         187 AA.
AC   O97945;
DT   15-JUL-1999, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1999, sequence version 1.
DT   25-MAY-2022, entry version 100.
DE   RecName: Full=Interferon alpha-3;
DE            Short=IFN-alpha-3;
DE   Flags: Precursor;
OS   Canis lupus familiaris (Dog) (Canis familiaris).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Laurasiatheria; Carnivora; Caniformia; Canidae; Canis.
OX   NCBI_TaxID=9615;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   TISSUE=Liver;
RX   PubMed=3039013; DOI=10.1089/jir.1987.7.173;
RA   Himmler A., Hauptmann R., Adolf G.R., Swetly P.;
RT   "Structure and expression in Escherichia coli of canine interferon-alpha
RT   genes.";
RL   J. Interferon Res. 7:173-183(1987).
CC   -!- FUNCTION: Produced by macrophages, IFN-alpha have antiviral activities.
CC       Interferon stimulates the production of two enzymes: a protein kinase
CC       and an oligoadenylate synthetase.
CC   -!- SUBCELLULAR LOCATION: Secreted.
CC   -!- SIMILARITY: Belongs to the alpha/beta interferon family. {ECO:0000305}.
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DR   EMBL; M28626; AAA30852.1; -; Genomic_DNA.
DR   PIR; I46206; I46206.
DR   AlphaFoldDB; O97945; -.
DR   SMR; O97945; -.
DR   Proteomes; UP000002254; Unplaced.
DR   GO; GO:0005615; C:extracellular space; IBA:GO_Central.
DR   GO; GO:0005125; F:cytokine activity; IBA:GO_Central.
DR   GO; GO:0005132; F:type I interferon receptor binding; IBA:GO_Central.
DR   GO; GO:0002250; P:adaptive immune response; IBA:GO_Central.
DR   GO; GO:0030183; P:B cell differentiation; IBA:GO_Central.
DR   GO; GO:0042100; P:B cell proliferation; IBA:GO_Central.
DR   GO; GO:0019221; P:cytokine-mediated signaling pathway; IBA:GO_Central.
DR   GO; GO:0051607; P:defense response to virus; IEA:UniProtKB-KW.
DR   GO; GO:0006959; P:humoral immune response; IBA:GO_Central.
DR   GO; GO:0002323; P:natural killer cell activation involved in immune response; IBA:GO_Central.
DR   GO; GO:0033141; P:positive regulation of peptidyl-serine phosphorylation of STAT protein; IBA:GO_Central.
DR   GO; GO:0043330; P:response to exogenous dsRNA; IBA:GO_Central.
DR   GO; GO:0002286; P:T cell activation involved in immune response; IBA:GO_Central.
DR   CDD; cd00095; IFab; 1.
DR   Gene3D; 1.20.1250.10; -; 1.
DR   InterPro; IPR009079; 4_helix_cytokine-like_core.
DR   InterPro; IPR000471; Interferon_alpha/beta/delta.
DR   PANTHER; PTHR11691; PTHR11691; 1.
DR   Pfam; PF00143; Interferon; 1.
DR   PRINTS; PR00266; INTERFERONAB.
DR   SMART; SM00076; IFabd; 1.
DR   SUPFAM; SSF47266; SSF47266; 1.
DR   PROSITE; PS00252; INTERFERON_A_B_D; 1.
PE   3: Inferred from homology;
KW   Antiviral defense; Cytokine; Disulfide bond; Glycoprotein;
KW   Reference proteome; Secreted; Signal.
FT   SIGNAL          1..23
FT                   /evidence="ECO:0000250"
FT   CHAIN           24..187
FT                   /note="Interferon alpha-3"
FT                   /id="PRO_0000016393"
FT   CARBOHYD        94
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        101
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   DISULFID        24..122
FT                   /evidence="ECO:0000250"
FT   DISULFID        52..160
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   187 AA;  21368 MW;  2182B58619D1E624 CRC64;
     MALPCSFSVA LVLLSCHSLC CLACHLPDTH SLRNWRVLTL LGQMRRLSAS SCDHYTTDFA
     FPKELFDGQR LQEAQALSVV HVMTQKVFHL FCTNTSSAPW NMTLLEELCS GLSEQLDDLD
     ACPLQEAGLA ETPLMHEDST LRTYFQRISL YLQDRNHSPC AWEMVRAEIG RSFFSLTILQ
     ERVRRRK