| Tissue Specificity | Found in all the examined tissues except in brain. Low expression was found in thymus, kidney, muscle and placenta. Detected in melanocytes, and in most tumor cell lines examined. Expressed in cytotoxic T-lymphocytes (CTL) and mast cells. |
| Function | Small GTPase which cycles between active GTP-bound and inactive GDP-bound states. In its active state, binds to a variety of effector proteins to regulate homeostasis of late endocytic pathway, including endosomal positioning, maturation and secretion. Plays a role in cytotoxic granule exocytosis in lymphocytes. Required for both granule maturation and granule docking and priming at the immunologic synapse. |
| Protein Name | Ras-Related Protein Rab-27aRab-27Gtp-Binding Protein Ram |
| Database Links | Reactome: R-HSA-264876Reactome: R-HSA-6798695Reactome: R-HSA-8873719Reactome: R-HSA-8876198Reactome: R-HSA-9824585 |
| Cellular Localisation | MembraneLipid-AnchorMelanosomeLate EndosomeLysosomeIdentified By Mass Spectrometry In Melanosome Fractions From Stage I To Stage IvLocalizes To Endosomal Exocytic Vesicles |
| Alternative Antibody Names | Anti-Ras-Related Protein Rab-27a antibodyAnti-Rab-27 antibodyAnti-Gtp-Binding Protein Ram antibodyAnti-RAB27A antibodyAnti-RAB27 antibody |
Information sourced from Uniprot.org
![Immunofluorescence analysis of HepG2 cells using [KD Validated] RAB27A Rabbit polyclonal antibody (STJ25258) at dilution of 1:100 (40x lens). Secondary antibody: Cy3 Goat Anti-Rabbit IgG (H+L) at 1:500 dilution. Blue: DAPI for nuclear staining.](https://cdn11.bigcommerce.com/s-zso2xnchw9/images/stencil/600x533/products/100398/386820/STJ25258_1__87091.1713155968.jpg?c=1 "Immunofluorescence analysis of HepG2 cells using [KD Validated] RAB27A Rabbit polyclonal antibody (STJ25258) at dilution of 1:100 (40x lens). Secondary antibody: Cy3 Goat Anti-Rabbit IgG (H+L) at 1:500 dilution. Blue: DAPI for nuclear staining.")