STAB2

Phosphatidylserine receptor that enhances the engulfment of apoptotic cells. Hyaluronan receptor that binds to and mediates endocytosis of hyaluronic acid (HA). Acts also, in different species, as a primary systemic scavenger receptor for heparin (Hep), chondroitin sulfate (CS), dermatan sulfate (DS), nonglycosaminoglycan (GAG), acetylated low-density lipoprotein (AcLDL), pro-collagen propeptides and advanced glycation end products (AGE). May serve to maintain tissue integrity by supporting extracellular matrix turnover or it may contribute to maintaining fluidity of bodily liquids by resorption of hyaluronan. Counter receptor which plays an important role in lymphocyte recruitment in the hepatic vasculature. Binds to both Gram-positive and Gram-negative bacteria and may play a role in defense against bacterial infection. The proteolytically processed short form also functions as an endocytosis receptor for heparin internalisation as well as HA and CS.

Full Name

stabilin 2

Function

Phosphatidylserine receptor that enhances the engulfment of apoptotic cells. Hyaluronan receptor that binds to and mediates endocytosis of hyaluronic acid (HA). Acts also, in different species, as a primary systemic scavenger receptor for heparin (Hep), chondroitin sulfate (CS), dermatan sulfate (DS), nonglycosaminoglycan (GAG), acetylated low-density lipoprotein (AcLDL), pro-collagen propeptides and advanced glycation end products (AGE). May serve to maintain tissue integrity by supporting extracellular matrix turnover or it may contribute to maintaining fluidity of bodily liquids by resorption of hyaluronan. Counter receptor which plays an important role in lymphocyte recruitment in the hepatic vasculature. Binds to both Gram-positive and Gram-negative bacteria and may play a role in defense against bacterial infection. The proteolytically processed 190 kDa form also functions as an endocytosis receptor for heparin internalization as well as HA and CS.

Biological Process

Biological Process angiogenesis1 PublicationNAS:UniProtKB
Biological Process cell adhesion1 PublicationNAS:UniProtKB
Biological Process defense response to bacteriumManual Assertion Based On ExperimentIDA:UniProtKB
Biological Process defense response to Gram-positive bacteriumManual Assertion Based On ExperimentIDA:UniProtKB
Biological Process endocytosisISS:UniProtKB
Biological Process hyaluronan catabolic processIEA:Ensembl
Biological Process receptor-mediated endocytosisManual Assertion Based On ExperimentTAS:UniProtKB

Cellular Location

Cell membrane
Cytoplasm
Only a small amount appears to be present at the cell surface (PubMed:17145755).

Topology

Extracellular: 20-2458
Helical: 2459-2479
Cytoplasmic: 2480-2551

PTM

Glycosylated.
Proteolytically processed to yield a 190 kDa protein.