Key Product Details

Validated by

Knockout/Knockdown

Species Reactivity

Human, Mouse, Rat

Applications

Knockout Validated, Western Blot, Simple Western

Label

Unconjugated

Antibody Source

Recombinant Monoclonal Rabbit IgG Clone # 2089B
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Product Specifications

Immunogen

E. coli-derived recombinant human GRK2
Pro468-Leu689
Accession # P25098

Specificity

Detects human GRK2 in direct ELISAs and Western blots.

Clonality

Monoclonal

Host

Rabbit

Isotype

IgG

Scientific Data Images for Human/Mouse/Rat GRK2 Antibody

Detection of Human, Mouse, and Rat GRK2 antibody by Western Blot.

Detection of Human, Mouse, and Rat GRK2 by Western Blot.

Western blot shows lysates of THP-1 human acute monocytic leukemia cell line, Ramos human Burkitt's lymphoma cell line, LL/2 mouse Lewis lung carcinoma cell line, H4-II-E-C3 rat hepatoma cell line, and C6 rat glioma cell line. PVDF membrane was probed with 0.1 µg/mL of Rabbit Anti-Human/Mouse/Rat GRK2 Monoclonal Antibody (Catalog # MAB43391) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for GRK2 at approximately 76 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Detection of Human GRK2 antibody by Simple WesternTM.

Detection of Human GRK2 by Simple WesternTM.

Simple Western lane view shows lysates of Ramos human Burkitt's lymphoma cell line and THP‑1 human acute monocytic leukemia cell line, loaded at 0.2 mg/mL. A specific band was detected for GRK2 at approximately 80 kDa (as indicated) using 1 µg/mL of Rabbit Anti-Human/Mouse/ Rat GRK2 Monoclonal Antibody (Catalog # MAB43391). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.
Western Blot Shows Human GRK2 Antibody Specificity by Using Knockout Cell Line.

Western Blot Shows Human GRK2 Specificity by Using Knockout Cell Line.

Western blot shows lysates of HEK293T human embryonic kidney parental cell line and GRK2 knockout HEK293T cell line (KO). PVDF membrane was probed with 0.1 µg/mL of Rabbit Anti-Human/Mouse/Rat GRK2 Monoclonal Antibody (Catalog # MAB43391) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for GRK2 at approximately 76 kDa (as indicated) in the parental HEK293T cell line, but is not detectable in knockout HEK293T cell line. GAPDH (Catalog # MAB5718) is shown as a loading control. This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Detection of GRK2 by Western Blot

Detection of GRK2 by Western Blot

Validation of CRISPR/Cas9 knock-out cell lines. (a) Western blot analysis of full-length GRK2 or GRK3 expression in parental or genome-edited cell lines with deletion of GRK2, GRK3 or GRK2/3. The anti-GRK2 and anti-GRK3 antibodies target a site C-terminal to the site that is genetically modified. GAPDH expression is detected to ensure equal loading. Full-length blots are presented in Supplementary Fig. 1. (b) Quantification of anti-GRK2 and anti-GRK3 western blots after normalization to the GAPDH signal. Mean ± SEM of 4–8 independent experiments. Expression in each of the KO cell lines was compared to the parental cells by one sample t-test using a reference value of 100 and the cutoff for what was considered a significant difference was adjusted to P < 0.05/n (n corresponds to the number of observations) to correct for multiple comparisons. ***P < 0.001/n. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/33060647), licensed under a CC-BY license. Not internally tested by R&D Systems.

Applications for Human/Mouse/Rat GRK2 Antibody

Application
Recommended Usage

Knockout Validated

GRK2 is specifically detected in HEK293T human embryonic kidney parental cell line but is not detectable in GRK2 knockout HEK293T cell line.

Simple Western

1 µg/mL
Sample: Ramos human Burkitt's lymphoma cell line and THP‑1 human acute monocytic leukemia cell line

Western Blot

0.1 µg/mL
Sample: THP‑1 human acute monocytic leukemia cell line, Ramos human Burkitt's lymphoma cell line, LL/2 mouse Lewis lung carcinoma cell line, H4‑II‑E‑C3 rat hepatoma cell line, and C6 rat glioma cell line

Formulation, Preparation, and Storage

Purification

Protein A or G purified from cell culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.


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Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

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.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: GRK2

G protein-coupled receptor kinases (GRKs) are important modulators of G protein-coupled receptor (GPCR) signaling. Receptor phosphorylation by specific GRKs plays a key role in triggering rapid desensitization. The GRK family consists of 7 isoforms that share a central catalytic domain with homology to other serine/threonine kinases. The catalytic domain is flanked by an amino-terminal RGS domain of 183‑188 amino acids and a carboxyl-terminus of variable length. GRK2 is a member of the beta ARK subfamily, and was originally termed beta ‑adrenergic receptor kinase 1 ( beta ARK1).

Long Name

G protein-coupled Receptor Kinase 2

Alternate Names

ADRBK1, BARK1, Beta-ARK1

Entrez Gene IDs

156 (Human); 110355 (Mouse); 25238 (Rat)

Gene Symbol

GRK2

UniProt

Additional GRK2 Products

Product Documents for Human/Mouse/Rat GRK2 Antibody

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human/Mouse/Rat GRK2 Antibody

For research use only

Related Research Areas

Citations for Human/Mouse/Rat GRK2 Antibody

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