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R4655

Sigma-Aldrich

Anti-Rab27 (N-terminal) antibody produced in rabbit

~1.5 mg/mL, affinity isolated antibody, buffered aqueous solution

Synonym(s):

Anti-RAB27A, member RAS oncogene family

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

antigen ~25 kDa

species reactivity

human, rat

concentration

~1.5 mg/mL

technique(s)

indirect immunofluorescence: 5-10 μg/mL using rat NRK cells fixed and permeabilized with 4% paraformaldehyde followed by 0.4% saponin
western blot: 2-5 μg/mL using whole extract of human A431 cells

UniProt accession no.

P51159

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... RAB27A(5873)
rat ... Rab27a(50645)

General description

Rab27 (Ras-related protein) is a member of the Rab family of small guanosine triphosphatases (GTPases). Rab27 is widely expressed in non-neuronal regulated secretory cells, including exocrine, endocrine, ovarian, and hematopoietic cells.
Rab27A (Ras-related protein) belongs to the Rab family of small GTPase proteins. It is located on chromosome 15q21.

Immunogen

synthetic peptide corresponding to amino acid residues 45-57 of human RAB27A, with an added cysteine, conjugated to KLH. The corresponding sequence differs by one amino acid in rat and mouse Rab27A and by 2 amino acids in human RAB27B.

Application

Anti-Rab27 (N-terminal) antibody has been used in immunoblotting, immunofluorescence.

Biochem/physiol Actions

In humans, Rab27A (Ras-related protein) plays important roles in the development of cancers. It is considered as a prognostic biomarker for CRC (colorectal cancer) patients. It may participate in the transfer of protein and signal transduction mediated by GTPase. Rab27 mutation is linked with Griscelli syndrome type 2. It is also responsible for the innate immune resistance against invading microorganisms.
Rab27 (Ras-related protein) regulates the exocytosis of these cell-specific store organelles, using multiple organelle-specific effector proteins, such as granuphilin and melanophilin.

Physical form

Solution in 0.01 M phos­phate buffered saline, pH 7.4, containing 15 mM sodium azide.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Rab27a was identified as a prognostic biomaker by mRNA profiling, correlated with malignant progression and subtype preference in gliomas
Wang H, et al.
PLoS ONE, 9(2) (2014)
High Rab27A expression indicates favorable prognosis in CRC
Shi C, et al.
Diagnostic Pathology, 10:68 (2015)
Bong Hwan Sung et al.
Nature communications, 6, 7164-7164 (2015-05-15)
Directional cell movement through tissues is critical for multiple biological processes and requires maintenance of polarity in the face of complex environmental cues. Here we use intravital imaging to demonstrate that secretion of exosomes from late endosomes is required for
Seema Sinha et al.
The Journal of cell biology, 214(2), 197-213 (2016-07-13)
Exosomes are extracellular vesicles that influence cellular behavior and enhance cancer aggressiveness by carrying bioactive molecules. The mechanisms that regulate exosome secretion are poorly understood. Here, we show that the actin cytoskeletal regulatory protein cortactin promotes exosome secretion. Knockdown or
Hironori Higashio et al.
Scientific reports, 6, 22539-22539 (2016-03-05)
Mast cell degranulation is regulated by the small guanosine triphosphatases (GTPases) Rab27a and Rab27b, which have distinct and opposing roles: Rab27b acts as a positive regulator through its effector protein Munc13-4, a non-neuronal isoform of the vesicle-priming Munc13 family of
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