Upstream / Downstream


Explore pathways related to this product.

Antibody Guarantee

CST Antibody Performance Guarantee



Find answers on our FAQs page.


Visit PhosphoSitePlus®

PTM information and tools available.


We recommend the following alternatives

W IP         H M R
23 Rabbit

Product Usage Information

Storage: Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

Rab38 Antibody detects endogeneous levels of total Rab38 protein.

Species predicted to react based on 100% sequence homology: Monkey

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Val192 of human Rab38 protein. Antibodies are purified by protein A and peptide affinity chromatography.

Rab38 is a member of the Rab small G protein family and is mainly expressed in lung alveolar type II cells and melanocytes (1,2). In mice, the G146T Rab38 gene mutation results in loss of Rab38 function and causes abnormal pigmentation due to the loss of melanosomes (3). The Rab38 gene locus has been mapped to oculocutaneous albinism in Ruby rats, a model of human Hermansky-Pudlak Syndrome (4). Analysis of lung structure in the G146T mutation in mice and the Rab38 null mutation in rats also revealed an altered lung surfactant system with enlarged lamellar bodies in type II cells, indicating a role for Rab38 in lung function and development (5,6). Dysfunction mutation studies implicate Rab38 in the post-Golgi trafficking of enzymes (e.g. TYRP1) related to melanogenesis and stability (7,8).

1.  Jäger, D. et al. (2000) Cancer Res 60, 3584-91.

2.  Osanai, K. et al. (2001) Am J Pathol 158, 1665-75.

3.  Loftus, S.K. et al. (2002) Proc Natl Acad Sci USA 99, 4471-6.

4.  Oiso, N. et al. (2004) Mamm Genome 15, 307-14.

5.  Osanai, K. et al. (2008) Am J Pathol 173, 1265-74.

6.  Osanai, K. et al. (2010) Am J Physiol Lung Cell Mol Physiol 298, L243-51.

7.  Wasmeier, C. et al. (2006) J Cell Biol 175, 271-81.

8.  Lopes, V.S. et al. (2007) Mol Biol Cell 18, 3914-27.

Entrez-Gene Id 23682
Swiss-Prot Acc. P57729

For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.

Rab38 Antibody