Rabbit anti-Human OSBPL3 Polyclonal Antibody

Uniprot Id

Q9H4L5

Target Species

Human

Target Name

OSBPL3

Target Full Name

Oxysterol-binding protein-related protein 3

Target Function

Phosphoinositide-binding protein which associates with both cell and endoplasmic reticulum (ER) membranes. Can bind to the ER membrane protein VAPA and recruit VAPA to plasma membrane sites, thus linking these intracellular compartments. The ORP3-VAPA complex stimulates RRAS signaling which in turn attenuates integrin beta-1 (ITGB1) activation at the cell surface. With VAPA, may regulate ER morphology. Has a role in regulation of the actin cytoskeleton, cell polarity and cell adhesion. Binds to phosphoinositides with preference for PI(3,4)P2 and PI(3,4,5)P3. Also binds 25-hydroxycholesterol and cholesterol.

Target Subcellular Location

Endoplasmic reticulum membrane; Peripheral membrane protein. Cytoplasm, cytosol. Cell membrane; Peripheral membrane protein. Cell projection, filopodium tip. Nucleus membrane; Peripheral membrane protein.

Target Protein Families

OSBP family

Target Tissue Specificity

Expressed in a subset of small lymphocytes (at protein level). Expressed at high concentration in kidney, lymph node and thymus. Expressed at moderate concentration in stomach, jejunum, ileum, appendix, spleen, leukocytes, trachea, lung and thyroid gland.

Target Synonyms

DKFZp667P1518; KIAA0704; MGC21526; ORP 3; ORP-3; ORP3; OSBL3_HUMAN; OSBP related protein 3; OSBP-related protein 3; OSBP3; Osbpl3; Oxysterol binding protein 3; Oxysterol binding protein like 3; Oxysterol binding protein related protein 3; Oxysterol-binding protein-related protein 3

Target Background

This gene encodes a member of the oxysterol-binding protein (OSBP) family, a group of intracellular lipid receptors. Most members contain an N-terminal pleckstrin homology domain and a highly conserved C-terminal OSBP-like sterol-binding domain. The encoded protein is involved in the regulation of cell adhesion and organization of the actin cytoskeleton. Alternative splicing results in multiple transcript variants.