Human Rab27a Antibody

Recombinant Monoclonal Antibody
Catalog # Availability Size / Price Qty
MAB7245-100
MAB7245-SP
Detection of Human Rab27a by Western Blot.
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Product Details
Citations (1)
FAQs
Supplemental Products
Reviews (1)

Human Rab27a Antibody Summary

Species Reactivity
Human
Specificity
Detects human RAB27a in direct ELISAs.
Source
Recombinant Monoclonal Rabbit IgG Clone # 2537A
Purification
Protein A or G purified from cell culture supernatant
Immunogen
E. coli-derived recombinant human RAB27a
Ser135-Ala218
Accession # P51159
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. See Certificate of Analysis for details.
*Small pack size (-SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
2 µg/mL
See below
Simple Western
20 µg/mL
K562 human chronic myelogenous leukemia cell line
Immunocytochemistry
3-25 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Human Rab27a antibody by Western Blot. View Larger

Detection of Human Rab27a by Western Blot. Western blot shows lysates of human prostate tissue. PVDF membrane was probed with 2 µg/mL of Rabbit Anti-Human Rab27a Monoclonal Antibody (Catalog # MAB7245) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (HAF008). A specific band was detected for Rab27a at approximately 26 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Simple Western View Larger

Detection of Human Rab27a by Simple WesternTM. Simple Western shows lysates of Exosome Standards (K562) (NBP2-49864) and SK‑Mel‑28 human malignant melanoma cell line, loaded at 0.5 mg/ml. A specific band was detected for Rab27a at approximately 32 kDa (as indicated) using 20 µg/mL of Rabbit Anti-Human Rab27a Monoclonal Antibody (Catalog # MAB7245). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

Immunocytochemistry Rab27a antibody in SK-Mel-28 Human Cell Line by Immunocytochemistry (ICC). View Larger

Rab27a in SK‑Mel‑28 Human Cell Line. Rab27a was detected in immersion fixed SK-Mel-28 human malignant melanoma cell line (left panel; positive staining) and Daudi human Burkitt's lymphoma cell line (right panel; negative staining) using Rabbit Anti-Human Rab27a Monoclonal Antibody (Catalog # MAB7245) at 3 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Rabbit IgG Secondary Antibody (red; NL004) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Simple Western View Larger

Detection of Human Rab27a by Simple WesternTM. Simple Western lane view shows lysates of K562 human chronic myelogenous leukemia cell line, loaded at 0.2 mg/mL. A specific band was detected for Rab27a at approximately 31 kDa (as indicated) using 20 µg/mL of Rabbit Anti-Human Rab27a Monoclonal Antibody (Catalog # MAB7245). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

Knockdown Validated Rab27a Specificity is Shown by Immunocytochemistry in Knockdown Cell Line. View Larger

Rab27a Specificity is Shown by Immunocytochemistry in Knockdown Cell Line. U‑87 MG human glioblastoma/astrocytoma parental cell line ctrl and Rab27a U-87 MG KD cells were labelled with a green or a far-red fluorescent dye, respectively. Cells were stained with Rabbit Anti-Human Rab27a Monoclonal Antibody (Catalog # MAB7245) followed by incubation with an Alexa-fluor 555 conjugated secondary antibody (upper panel). DAPI-only counterstained cells shown on a lower panel. Acquisition of the blue (nucleus-DAPI), green (identification of ctrl cells), red (antibody staining) and far-red (identification of KD cells) channels was performed. Representative images of the blue and red (grayscale) channels are shown. Ctrl and KD cells are outlined with green and magenta dashed line, respectively. Primary antibody concentration used: 3.33 µg/mL. Image, protocol and testing courtesy of YCharOS Inc. (ycharos.com).

Knockdown Validated Western Blot Shows Rab27a Specificity Using Knockdown Cell Line. View Larger

Western Blot Shows Rab27a Specificity Using Knockdown Cell Line. Western blot shows lysates of U‑87 MG human glioblastoma/astrocytoma parental cell line and Rab27a knockdown U-87 MG cell line (KD). Nitrocellulose membrane was probed with 2.5 µg/mL Rabbit Anti-Human Rab27a Monoclonal Antibody (Catalog # MAB7245) followed by HRP-conjugated secondary antibody. A specific band was detected for Rab27a at approximately 26 kDa (as indicated) in the parental U-87 MG cell line, but is significantly reduced in knockdown U-87 MG cell line. The Ponceau stained transfer of the blot is shown. This experiment was conducted under reducing conditions. Image, protocol, and testing courtesy of YCharOS Inc. See ycharos.com for additional details.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
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Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Rab27a

RAB27A (Ras-related protein Rab 27A; also GTP-binding protein Ram) is a 27-28 kDa member of the Rab27 subfamily, Rab family, Small GTPase superfamily of proteins. It is widely expressed, and found in cells diverse as mast cells, cytotoxic T cells, melanocytes, retinal pigment epithelium and pancreatic beta -cells. RAB27A plays a key role in the secretion of specialized lysosomes termed secretory lysosomes. In melanocytes, for example, RAB27A is incorporated into the melanosome membrane where it serves as a docking factor for melanophilin and myosin-Va, regulating melanosome transport to, and concentration at, sites of release. Human RAB27A is 221 amino acids (aa) in length. It contains multiple Rab family and subfamily motifs, and concludes with a C-terminal CXC prenylation sequence (aa 219‑221). There is one potential splice variant that shows a deletion of aa 146-153. Over aa 135-218, human RAB27A shares 92% and 94% aa sequence identity with mouse Rab27A and rat RAB27A, respectively.

Long Name
RAs Genes from Brain Protein 27A
Entrez Gene IDs
5873 (Human)
Alternate Names
GS2; GS2rab-27; GTP-binding protein Ram; HsT18676; Rab-27; Rab27a; RAB27A, member RAS oncogene family; RAB27MGC117246; RAM; RAMras-related protein Rab-27A

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Citation for Human Rab27a Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Neutrophil-specific interactome of ARHGAP25 reveals novel partners and regulatory insights
    Authors: Sasvári, P;Pettkó-Szandtner, A;Wisniewski, É;Csépányi-Kömi, R;
    Scientific reports
    Species: Human
    Sample Types: Protein
    Applications: Western Blot

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Human Rab27a Antibody
By Anonymous on 06/05/2022
Application: Immunocytochemistry/Immunofluorescence Sample Tested: SK-Mel-28 human malignant melanoma cell line Species: Human