Golgi phosphoprotein 4; Golgi integral membrane protein cis; GIMPc; Golgi-localized phosphoprotein of 130 kD; Golgi phosphoprotein of 130 kD (GOLPH4, GIMPC, GPP130, GOLIM4)

Function

• plays a role in endosome to Golgi protein trafficking
• mediates protein transport along the late endosome-bypass pathway from the early endosome to the Golgi
• phosphorylated by c-AMP-dependent kinases in its lumenal part (putative)

Structure

• O-glycosylated, modified by sialic acid residues
• N-glycosylated, N-glycans are probably of the complex type & modified by sialic acid residues
• belongs to the GOLPH4 family

Compartment

• Golgi membrane, endosome membrane
• localizes to cis & medial Golgi cisternae
• probably cycles between early Golgi & endosome

More general terms

• membrane protein
• glycoprotein
• phosphoprotein

Database

• OMIM: https://mirror.omim.org/entry/606805
• UniProt: http://www.uniprot.org/uniprot/O00461.html