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apolipoprotein M; apo-M; apoM; protein G3a (APOM, G3A, NG20, HSPC336)
Function:
- probably involved in lipid transport
- can bind sphingosine-1-phosphate, myristic acid, palmitic acid & stearic acid, retinol, all-trans-retinoic acid & 9-cis-retinoic acid
Structure:
- belongs to the calycin superfamily, lipocalin family
- highly divergent
Compartment:
- secreted
- present in high density lipoprotein (HDL) & to a lesser extent in triglyceride-rich lipoproteins (TGRLP) & low density lipoproteins (LDL)
Expression:
- expressed in liver & kidney & secreted into plasma
General
apolipoprotein
glycoprotein
Properties
SIZE: entity length = 188 aa
MW = 21 kD
COMPARTMENT: extracellular compartment
MOTIF: cysteine residue {C23}
MODIFICATION: cysteine residue {C167}
cysteine residue {C95}
MODIFICATION: cysteine residue {C183}
cysteine residue {C128}
MODIFICATION: cysteine residue {C157}
N-glycosylation site {N135}
binding site
SITE: 136-136
FOR-BINDING-OF: Fatty acid
binding site
SITE: 143-143
FOR-BINDING-OF: Fatty acid
cysteine residue {C157}
MODIFICATION: cysteine residue {C128}
cysteine residue {C167}
MODIFICATION: cysteine residue {C23}
cysteine residue {C183}
MODIFICATION: cysteine residue {C95}
Database Correlations
OMIM 606907
UniProt O95445
Pfam PF11032
Entrez Gene 55937
Kegg hsa:55937
References
- UniProt :accession O95445
- Entrez Gene :accession 55937