Macrophage migration inhibitory factor

MIF
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesMIF, GIF, GLIF, Mmacrophage migration inhibitory factor (glycosylation-inhibiting factor), macrophage migration inhibitory factor
External IDsOMIM: 153620; MGI: 96982; HomoloGene: 55655; GeneCards: MIF; OMA:MIF - orthologs
EC number5.3.3.12
Orthologs
SpeciesHumanMouse
Entrez

4282

17319

Ensembl

ENSG00000276701
ENSG00000240972

ENSMUSG00000033307

UniProt

P14174

P34884

RefSeq (mRNA)

NM_002415

NM_010798

RefSeq (protein)

NP_002406
NP_002406.1

NP_034928

Location (UCSC)Chr 22: 23.89 – 23.9 MbChr 10: 75.7 – 75.7 Mb
PubMed search
Wikidata
View/Edit HumanView/Edit Mouse
Macrophage migration inhibitory factor (MIF)
Identifiers
SymbolMIF
PfamPF01187
InterProIPR001398
PROSITEPDOC00892
SCOP21mif / SCOPe / SUPFAM
Available protein structures:
Pfam  structures / ECOD  
PDBRCSB PDB; PDBe; PDBj
PDBsumstructure summary

Macrophage migration inhibitory factor (MIF), also known as glycosylation-inhibiting factor (GIF), L-dopachrome isomerase, or phenylpyruvate tautomerase is a protein that in humans is encoded by the MIF gene. MIF is an important regulator of innate immunity. The MIF protein superfamily also includes a second member with functionally related properties, the D-dopachrome tautomerase (D-DT). CD74 is a surface receptor for MIF.

Bacterial antigens stimulate white blood cells to release MIF into the blood stream. The circulating MIF binds to CD74 on other immune cells to trigger an acute immune response. Hence, MIF is classified as an inflammatory cytokine. Furthermore, glucocorticoids also stimulate white blood cells to release MIF and hence MIF partially counteracts the inhibitory effects that glucocorticoids have on the immune system. Finally trauma activates the anterior pituitary gland to release MIF.