IFNG_MACTH
ID IFNG_MACTH Reviewed; 165 AA.
AC Q5I6S9;
DT 12-APR-2005, integrated into UniProtKB/Swiss-Prot.
DT 15-FEB-2005, sequence version 1.
DT 25-MAY-2022, entry version 56.
DE RecName: Full=Interferon gamma;
DE Short=IFN-gamma;
DE Flags: Precursor;
GN Name=IFNG;
OS Macaca thibetana (Pere David's macaque) (Tibetan macaque).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini;
OC Cercopithecidae; Cercopithecinae; Macaca.
OX NCBI_TaxID=54602;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA].
RA Wei K., Zou F.D., Lai B., Yue B.S.;
RT "Molecular cloning, characterization of the interferon-gamma gene from
RT Tibetan macaque (Macaca thibetana) and it's expression in Escherichia
RT coli.";
RL Submitted (DEC-2004) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Type II interferon produced by immune cells such as T-cells
CC and NK cells that plays crucial roles in antimicrobial, antiviral, and
CC antitumor responses by activating effector immune cells and enhancing
CC antigen presentation. Primarily signals through the JAK-STAT pathway
CC after interaction with its receptor IFNGR1 to affect gene regulation.
CC Upon IFNG binding, IFNGR1 intracellular domain opens out to allow
CC association of downstream signaling components JAK2, JAK1 and STAT1,
CC leading to STAT1 activation, nuclear translocation and transcription of
CC IFNG-regulated genes. Many of the induced genes are transcription
CC factors such as IRF1 that are able to further drive regulation of a
CC next wave of transcription. Plays a role in class I antigen
CC presentation pathway by inducing a replacement of catalytic proteasome
CC subunits with immunoproteasome subunits. In turn, increases the
CC quantity, quality, and repertoire of peptides for class I MHC loading.
CC Increases the efficiency of peptide generation also by inducing the
CC expression of activator PA28 that associates with the proteasome and
CC alters its proteolytic cleavage preference. Up-regulates as well MHC II
CC complexes on the cell surface by promoting expression of several key
CC molecules such as cathepsins B/CTSB, H/CTSH, and L/CTSL (By
CC similarity). Participates in the regulation of hematopoietic stem cells
CC during development and under homeostatic conditions by affecting their
CC development, quiescence, and differentiation (By similarity).
CC {ECO:0000250|UniProtKB:P01579, ECO:0000250|UniProtKB:P01580}.
CC -!- SUBUNIT: Homodimer. Interacts with IFNGR1 (via extracellular domain);
CC this interaction promotes IFNGR1 dimerization.
CC {ECO:0000250|UniProtKB:P01579}.
CC -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250|UniProtKB:P01579}.
CC -!- TISSUE SPECIFICITY: Released primarily from activated T lymphocytes.
CC -!- SIMILARITY: Belongs to the type II (or gamma) interferon family.
CC {ECO:0000305}.
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DR EMBL; AY848710; AAW31946.1; -; mRNA.
DR AlphaFoldDB; Q5I6S9; -.
DR SMR; Q5I6S9; -.
DR GO; GO:0005615; C:extracellular space; IEA:UniProtKB-KW.
DR GO; GO:0005125; F:cytokine activity; IEA:UniProtKB-KW.
DR GO; GO:0005133; F:interferon-gamma receptor binding; IEA:InterPro.
DR GO; GO:0051607; P:defense response to virus; IEA:UniProtKB-KW.
DR GO; GO:0006955; P:immune response; IEA:InterPro.
DR GO; GO:0040008; P:regulation of growth; IEA:UniProtKB-KW.
DR Gene3D; 1.20.1250.10; -; 1.
DR InterPro; IPR009079; 4_helix_cytokine-like_core.
DR InterPro; IPR002069; Interferon_gamma.
DR PANTHER; PTHR11419; PTHR11419; 1.
DR Pfam; PF00714; IFN-gamma; 1.
DR PIRSF; PIRSF001936; IFN-gamma; 1.
DR SUPFAM; SSF47266; SSF47266; 1.
PE 2: Evidence at transcript level;
KW Antiviral defense; Cytokine; Glycoprotein; Growth regulation;
KW Pyrrolidone carboxylic acid; Secreted; Signal.
FT SIGNAL 1..23
FT /evidence="ECO:0000250"
FT CHAIN 24..165
FT /note="Interferon gamma"
FT /id="PRO_0000016449"
FT MOD_RES 24
FT /note="Pyrrolidone carboxylic acid"
FT /evidence="ECO:0000250|UniProtKB:P01579"
FT CARBOHYD 48
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 120
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
SQ SEQUENCE 165 AA; 19360 MW; 3A2070CAFC2E8BB2 CRC64;
MKYTSYILAF QLCIVLGSLG CYCQDPYVRE AENLKKYFNA GDPDVADNGT LFLDILRNWK
EESDRKIMQS QIVSFYFKLF KNFKDDQRIQ KSVETIKEDI NVKFFNSNKK KRDDFEKLTN
YSVTDSNVQR KAVHELIQVM AELSPAAKIG KRKRSQMFRG RRASQ