|Positive WB detected in||rat spleen tissue, A375 cells, DU 145 cells, MCF-7 cells, PC-3 cells|
|Positive IHC detected in||human pancreas cancer tissue, human breast cancer tissue, human colon cancer tissue, human liver cancer tissue, human prostate cancer tissue, human testis tissue|
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
|Positive IF detected in||HeLa cells|
|Western Blot (WB)||WB : 1:500-1:2000|
|Immunohistochemistry (IHC)||IHC : 1:50-1:500|
|Immunofluorescence (IF)||IF : 1:50-1:500|
|Sample-dependent, check data in validation data gallery|
13412-1-AP targets RAB27B in WB, IHC, IF, ELISA applications and shows reactivity with human, mouse, rat samples.
|Tested Reactivity||human, mouse, rat|
|Cited Reactivity||dog, human, mouse, rat|
|Host / Isotype||Rabbit / IgG|
|Immunogen||RAB27B fusion protein Ag4064|
|Full Name||RAB27B, member RAS oncogene family|
|Calculated molecular weight||218 aa, 25 kDa|
|Observed molecular weight||25-30 kDa|
|GenBank accession number||BC027474|
|Gene ID (NCBI)||5874|
|Purification Method||Antigen affinity purification|
|Storage Buffer||PBS with 0.02% sodium azide and 50% glycerol pH 7.3.|
|Storage Conditions||Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage.|
The Rab27 GTPase subfamily consists of two closely related homologs, Rab27a and Rab27b. Northern blot analysis revealed that Rab27b is expressed significantly only in testis, in which the predominant transcript was 1.4 kb in size. An 8-kb mRNA of unknown origin was detected in many tissues. Rab27b is associated with tubulovesicle membranes in the parietal cell and Rab27b may play a role in stimulation-associated membrane recruitment and gastric acid secretion. Rab27b is recently reported as a marker for breast cancer progression. It regulates invasive growth and metastasis in ER-positive breast cancer cell lines, and increased expression is associated with poor prognosis in humans.
Inactivation of Rab27B-dependent signaling pathway by calycosin inhibits migration and invasion of ER-negative breast cancer cells.
Int J Cancer
RAB27B-activated secretion of stem-like tumor exosomes delivers the biomarker microRNA-146a-5p, which promotes tumorigenesis and associates with an immunosuppressive tumor microenvironment in colorectal cancer.
Downregulation of serum RAB27B confers improved prognosis and is associated with hepatocellular carcinoma progression through PI3K-AKT-P21 signaling.
Int J Mol Sci
Inhibition of Rab27a and Rab27b Has Opposite Effects on the Regulation of Hair Cycle and Hair Growth.
Hypomethylated Rab27b is a progression-associated prognostic biomarker of glioma regulating MMP-9 to promote invasion.
J Histochem Cytochem
Canine Salivary Glands: Analysis of Rab and SNARE Protein Expression and SNARE Complex Formation With Diverse Tissue Properties.