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Protein

Macrophage migration inhibitory factor

Gene

mif

Organism
Xenopus tropicalis (Western clawed frog) (Silurana tropicalis)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Pro-inflammatory cytokine. Involved in the innate immune response to bacterial pathogens. The expression of MIF at sites of inflammation suggests a role as mediator in regulating the function of macrophages in host defense. Has phenylpyruvate tautomerase and dopachrome tautomerase activity (in vitro), but the physiological substrate is not known. It is not clear whether the tautomerase activity has any physiological relevance, and whether it is important for cytokine activity (By similarity).By similarity

Catalytic activityi

Keto-phenylpyruvate = enol-phenylpyruvate.
L-dopachrome = 5,6-dihydroxyindole-2-carboxylate.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei2 – 21Proton acceptor; via imino nitrogenBy similarity
Binding sitei33 – 331SubstrateBy similarity
Binding sitei65 – 651Substrate; via amide nitrogenBy similarity
Binding sitei98 – 981SubstrateBy similarity

GO - Molecular functioni

  1. dopachrome isomerase activity Source: UniProtKB-EC
  2. phenylpyruvate tautomerase activity Source: UniProtKB-EC

GO - Biological processi

  1. inflammatory response Source: UniProtKB-KW
  2. innate immune response Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Cytokine, Isomerase

Keywords - Biological processi

Immunity, Inflammatory response, Innate immunity

Names & Taxonomyi

Protein namesi
Recommended name:
Macrophage migration inhibitory factor (EC:5.3.2.1)
Short name:
MIF
Alternative name(s):
L-dopachrome isomerase
L-dopachrome tautomerase (EC:5.3.3.12)
Phenylpyruvate tautomerase
Gene namesi
Name:mif
OrganismiXenopus tropicalis (Western clawed frog) (Silurana tropicalis)
Taxonomic identifieri8364 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiAmphibiaBatrachiaAnuraPipoideaPipidaeXenopodinaeXenopusSilurana
ProteomesiUP000008143 Componenti: Unplaced

Organism-specific databases

XenbaseiXB-GENE-487448. mif.

Subcellular locationi

Secreted By similarity. Cytoplasm By similarity
Note: Does not have a cleavable signal sequence and is secreted via a specialized, non-classical pathway. Secreted by macrophages upon stimulation (By similarity).By similarity

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
  2. extracellular space Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Secreted

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methioninei1 – 11RemovedBy similarity
Chaini2 – 115114Macrophage migration inhibitory factorPRO_0000344371Add
BLAST

Interactioni

Subunit structurei

Homotrimer.By similarity

Structurei

3D structure databases

ProteinModelPortaliA9JSE7.
SMRiA9JSE7. Positions 1-115.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the MIF family.Curated

Phylogenomic databases

HOVERGENiHBG003240.
InParanoidiA9JSE7.
KOiK07253.

Family and domain databases

InterProiIPR001398. Macrophage_inhib_fac.
IPR019829. Macrophage_inhib_fac_CS.
IPR014347. Tautomerase/MIF_sf.
[Graphical view]
PANTHERiPTHR11954. PTHR11954. 1 hit.
PfamiPF01187. MIF. 1 hit.
[Graphical view]
ProDomiPD004816. Macrophage_inhib_fac. 1 hit.
[Graphical view] [Entries sharing at least one domain]
SUPFAMiSSF55331. SSF55331. 1 hit.
PROSITEiPS01158. MIF. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

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

A9JSE7-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MPTFTVCTNV CRDSMPDTLL SDLTKLLAKA TGKPAEYIAI HIMPDQMMSF
60 70 80 90 100
GDSTDPCAVC SLSSIGKIGG PQNKSYSKLL CDYLTKQMNI PANRVYINFH
110
DLNPANVGWN GSTFA
Length:115
Mass (Da):12,524
Last modified:February 4, 2008 - v1
Checksum:iF8EEDB313BF97710
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC156031 mRNA. Translation: AAI56032.1.
RefSeqiNP_001107147.1. NM_001113675.1.
UniGeneiStr.22164.

Genome annotation databases

GeneIDi100134996.
KEGGixtr:100134996.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC156031 mRNA. Translation: AAI56032.1.
RefSeqiNP_001107147.1. NM_001113675.1.
UniGeneiStr.22164.

3D structure databases

ProteinModelPortaliA9JSE7.
SMRiA9JSE7. Positions 1-115.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi100134996.
KEGGixtr:100134996.

Organism-specific databases

CTDi4282.
XenbaseiXB-GENE-487448. mif.

Phylogenomic databases

HOVERGENiHBG003240.
InParanoidiA9JSE7.
KOiK07253.

Family and domain databases

InterProiIPR001398. Macrophage_inhib_fac.
IPR019829. Macrophage_inhib_fac_CS.
IPR014347. Tautomerase/MIF_sf.
[Graphical view]
PANTHERiPTHR11954. PTHR11954. 1 hit.
PfamiPF01187. MIF. 1 hit.
[Graphical view]
ProDomiPD004816. Macrophage_inhib_fac. 1 hit.
[Graphical view] [Entries sharing at least one domain]
SUPFAMiSSF55331. SSF55331. 1 hit.
PROSITEiPS01158. MIF. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. NIH - Xenopus Gene Collection (XGC) project
    Submitted (NOV-2007) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
    Tissue: Testis.

Entry informationi

Entry nameiMIF_XENTR
AccessioniPrimary (citable) accession number: A9JSE7
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 21, 2008
Last sequence update: February 4, 2008
Last modified: January 6, 2015
This is version 40 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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 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.