OLFM1

Plasma proteins

Intracellular, Secreted (different isoforms)

Cell type enhanced (Excitatory neurons, Hepatic stellate cells, Inhibitory neurons)

Immune cell enhanced (intermediate monocyte, myeloid DC, classical monocyte)

Cell line enhanced (HeLa, MCF7, NTERA-2, OE19, SCLC-21H, SiHa, T-47d, U-2197)

Homotetramer; disulfide-linked. Dimer of dimers, giving rise to a V-shaped homotretramer. Isoform 1 and isoform 3 interact with RTN4R. Identified in a complex with RTN4R and LINGO1. Peripherally associated with AMPAR complex. AMPAR complex consists of an inner core made of 4 pore-forming GluA/GRIA proteins (GRIA1, GRIA2, GRIA3 and GRIA4) and 4 major auxiliary subunits arranged in a twofold symmetry. One of the two pairs of distinct binding sites is occupied either by CNIH2, CNIH3 or CACNG2, CACNG3. The other harbors CACNG2, CACNG3, CACNG4, CACNG8 or GSG1L. This inner core of AMPAR complex is complemented by outer core constituents binding directly to the GluA/GRIA proteins at sites distinct from the interaction sites of the inner core constituents. Outer core constituents include at least PRRT1, PRRT2, CKAMP44/SHISA9, FRRS1L and NRN1. The proteins of the inner and outer core serve as a platform for other, more peripherally associated AMPAR constituents, including OLFM1. Alone or in combination, these auxiliary subunits control the gating and pharmacology of the AMPAR complex and profoundly impact their biogenesis and protein processing (By similarity). Interacts with OLFM2 (PubMed:21228389).

Developmental protein