Anti-GRK5 Antibody Picoband®

Overview

This antibody is intended for detection of GRK5 (G protein-coupled receptor kinase 5) in biological samples using common immunoassay formats. It is typically selected based on target identity, species reactivity, clonality/clone information, and detection modality.

Vendor notes: Boster Bio Anti-GRK5 Antibody Picoband® catalog # PB9708. Tested in IHC, WB applications. This antibody reacts with Human, Mouse, Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.

Key elements and design rationale

• Antibody format: Rabbit Polyclonal Rabbit IgG
• Immunogen / epitope context: A synthetic peptide corresponding to a sequence at the C-terminus of human GRK5, different from the related mouse and rat sequences by three amino acids.
• Molecular weight context: reported MW: 68 kDa; calculated MW: 67787 MW
• Reactivity: Human,Mouse,Rat
• Applications: IHC, WB

As a polyclonal antibody, the reagent recognizes multiple epitopes on the target, which can improve detection robustness but may increase sensitivity to sample-dependent epitope changes.

Biological background

G protein-coupled receptor kinase 5; G protein-coupled receptor kinase 5. G protein-coupled receptor kinase 5?is an?enzyme?that in humans is encoded by the?GRK5?gene. It is mapped to 10q26.11. This gene encodes a member of the guanine nucleotide-binding protein (G protein)-coupled receptor kinase subfamily of the Ser/Thr protein kinase family. The protein phosphorylates the activated forms of G protein-coupled receptors thus initiating their deactivation. It has also been shown to play a role in regulating the motility of polymorphonuclear leukocytes (PMNs). Functional note: Serine/threonine kinase that phosphorylates preferentially the activated forms of a variety of G-protein- coupled receptors (GPCRs). Such receptor phosphorylation initiates beta-arrestin-mediated receptor desensitization, internalization, and signaling events leading to their down-regulation. Phosphorylates a variety of GPCRs, including adrenergic receptors, muscarinic acetylcholine receptors (more specifically Gi-coupled M2/M4 subtypes), dopamine receptors and opioid receptors. In addition to GPCRs, also phosphorylates various substrates: Hsc70- interacting protein/ST13, TP53/p53, HDAC5, and arrestin-1/ARRB1. Phosphorylation of ARRB1 by GRK5 inhibits G-protein independent MAPK1/MAPK3 signaling downstream of 5HT4-receptors. Phosphorylation of HDAC5, a repressor of myocyte enhancer factor 2 (MEF2) leading to nuclear export of HDAC5 and allowing MEF2- mediated transcription. Phosphorylation of TP53/p53, a crucial tumor suppressor, inhibits TP53/p53-mediated apoptosis. Phosphorylation of ST13 regulates internalization of the chemokine receptor. Phosphorylates rhodopsin (RHO) (in vitro) and a non G- protein-coupled receptor, LRP6 during Wnt signaling (in vitro). . Reported localization: Cytoplasm. Nucleus. Cell membrane; Peripheral membrane protein. Predominantly localized at the plasma membrane; targeted to the cell surface through the interaction with phospholipids. Nucleus localization is regulated in a GPCR and Ca (2+)/calmodulin-dependent fashion. Expression/tissue context: Highest levels in heart, placenta, lung > skeletal muscle > brain, liver, pancreas > kidney. .

Research relevance and current trends

• Atherosclerosis: Researchers commonly examine how GRK5 (G protein-coupled receptor kinase 5) relates to this theme using model systems and orthogonal readouts.
• Cardiovascular: Researchers commonly examine how GRK5 (G protein-coupled receptor kinase 5) relates to this theme using model systems and orthogonal readouts.
• G Protein Signaling: Researchers commonly examine how GRK5 (G protein-coupled receptor kinase 5) relates to this theme using model systems and orthogonal readouts.

Common research applications

• Western blotting: compare relative GRK5 (G protein-coupled receptor kinase 5) levels across conditions; band patterns may reflect isoforms and processing.
• IHC/IHC-F: assess spatial distribution of GRK5 (G protein-coupled receptor kinase 5) across tissue regions and cell types using matched controls.

Notes for experimental interpretation

• Specificity notes: No cross reactivity with other proteins.
• Cross-reactivity: No cross-reactivity with other proteins
• Isoforms and PTMs: Apparent size and signal patterns can differ across splice isoforms, proteolytic processing, and post-translational modifications.
• Controls: Include an isotype control (as relevant), no-primary control for imaging, and orthogonal validation such as KD/KO samples when available.

Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.