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Protein

Interferon tau

Gene

IFNT

Organism
Cervus elaphus (Red deer)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at transcript leveli

Functioni

Paracrine hormone primarily responsible for maternal recognition of pregnancy. Interacts with endometrial receptors, probably type I interferon receptors, and blocks estrogen receptor expression, preventing the estrogen-induced increase in oxytocin receptor expression in the endometrium. This results in the suppression of the pulsatile endometrial release of the luteolytic hormone prostaglandin F2-alpha, hindering the regression of the corpus luteum (luteolysis) and therefore a return to ovarian cyclicity. This, and a possible direct effect of IFN-tau on prostaglandin synthesis, leads in turn to continued ovarian progesterone secretion, which stimulates the secretion by the endometrium of the nutrients required for the growth of the conceptus. In summary, displays particularly high antiviral and antiproliferative potency concurrently with particular weak cytotoxicity, high antiluteolytic activity and immunomodulatory properties. In contrast with other IFNs, IFN-tau is not virally inducible.

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Cytokine, Hormone

Keywords - Biological processi

Antiviral defense, Pregnancy

Names & Taxonomyi

Protein namesi
Recommended name:
Interferon tau
Short name:
IFN-tau
Alternative name(s):
Antiluteolysin
Trophoblast antiluteolytic protein
Trophoblast protein 1
Short name:
TP-1
Trophoblastin
Gene namesi
Name:IFNT
OrganismiCervus elaphus (Red deer)
Taxonomic identifieri9860 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraCervidaeCervinaeCervus

Subcellular locationi

  • Secreted

  • Note: Secreted into the uterine lumen.

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Secreted

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 2323By similarityAdd
BLAST
Chaini24 – 195172Interferon tauPRO_0000016424Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Disulfide bondi24 ↔ 122By similarity
Disulfide bondi52 ↔ 162By similarity

Keywords - PTMi

Disulfide bond

Expressioni

Tissue specificityi

Constitutively and exclusively expressed in the mononuclear cells of the extraembryonic trophectoderm.

Developmental stagei

Major secretory product synthesized by the conceptus during a very short period in early pregnancy.

Structurei

3D structure databases

ProteinModelPortaliO46633.
SMRiO46633. Positions 24-187.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Signal

Phylogenomic databases

HOVERGENiHBG052086.

Family and domain databases

Gene3Di1.20.1250.10. 1 hit.
InterProiIPR009079. 4_helix_cytokine-like_core.
IPR012351. 4_helix_cytokine_core.
IPR000471. Interferon_alpha/beta/delta.
[Graphical view]
PANTHERiPTHR11691. PTHR11691. 1 hit.
PfamiPF00143. Interferon. 1 hit.
[Graphical view]
PRINTSiPR00266. INTERFERONAB.
SMARTiSM00076. IFabd. 1 hit.
[Graphical view]
SUPFAMiSSF47266. SSF47266. 1 hit.
PROSITEiPS00252. INTERFERON_A_B_D. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

O46633-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAFVLSLLMA LVLASYSPGG SLGCDLSQNH VLLGRQNLKL LGQMTRLSPR
60 70 80 90 100
FCLQDRKDFG LPQEMVEGGQ LQKDQAISVL HEMLQQCFNL FHTERSSAAW
110 120 130 140 150
DTTLLEQLRT GLHQQLDDLD ACLGQVMGKE DSDLRRMGPT LTVKKYFQGI
160 170 180 190
HVYLQEKEYS DCAWEIVQVE MMRALSSISR LQKRLRKMGG DLNSP
Length:195
Mass (Da):22,076
Last modified:June 1, 1998 - v1
Checksum:iF5304ACB1ACF0CC7
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AJ000638 mRNA. Translation: CAA04193.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AJ000638 mRNA. Translation: CAA04193.1.

3D structure databases

ProteinModelPortaliO46633.
SMRiO46633. Positions 24-187.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Phylogenomic databases

HOVERGENiHBG052086.

Family and domain databases

Gene3Di1.20.1250.10. 1 hit.
InterProiIPR009079. 4_helix_cytokine-like_core.
IPR012351. 4_helix_cytokine_core.
IPR000471. Interferon_alpha/beta/delta.
[Graphical view]
PANTHERiPTHR11691. PTHR11691. 1 hit.
PfamiPF00143. Interferon. 1 hit.
[Graphical view]
PRINTSiPR00266. INTERFERONAB.
SMARTiSM00076. IFabd. 1 hit.
[Graphical view]
SUPFAMiSSF47266. SSF47266. 1 hit.
PROSITEiPS00252. INTERFERON_A_B_D. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Production of interferon by the conceptus in red deer Cervus elaphus."
    Demmers K.J., Kaluz S., Deakin D.W., Jabbour H.N., Flint A.P.F.
    J. Reprod. Fertil. 115:59-65(1999) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].
  2. "IFN-tau: a novel subtype I IFN1. Structural characteristics, non-ubiquitous expression, structure-function relationships, a pregnancy hormonal embryonic signal and cross-species therapeutic potentialities."
    Martal J.L., Chene N.M., Huynh L.P., L'Haridon R.M., Reinaud P.B., Guillomot M.W., Charlier M.A., Charpigny S.Y.
    Biochimie 80:755-777(1998) [PubMed] [Europe PMC] [Abstract]
    Cited for: REVIEW.

Entry informationi

Entry nameiIFNT_CEREL
AccessioniPrimary (citable) accession number: O46633
Entry historyi
Integrated into UniProtKB/Swiss-Prot: May 30, 2000
Last sequence update: June 1, 1998
Last modified: October 14, 2015
This is version 79 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Miscellaneous

IFN-tau genes are intronless. They evolved from IFN-omega genes in the ruminantia suborder and have continued to duplicate independently in different lineages of the ruminantia. They code for proteins very similar in sequence but with different biological potency and pattern of expression.

Documents

  1. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.