GPR61 Membrane Protein Introduction

Introduction of GPR61

Probable G-protein coupled receptor 61, also known as Biogenic amine receptor-like G-protein coupled receptor, is a protein that belongs to the G-protein coupled receptor 1 family which is encoded by the GPR61 gene. As a member of G protein-coupled receptors, GPR61 contains 7 transmembrane domains and transduce extracellular signals through heterotrimeric G proteins. In the past years, GPR61 has been extensively studied for its functions and applications. Numerous studies have suggested that GPR61 is most closely related to biogenic amine receptors.

Basic Information of GPR61
Protein Name Probable G-protein coupled receptor 61
Gene Name GPR61
Aliases Biogenic amine receptor-like G-protein coupled receptor
Organism Homo sapiens (Human)
UniProt ID Q9BZJ8
Transmembrane Times 7
Length (aa) 451

Function of GPR61 Membrane Protein

G protein-coupled receptors (GPCRs) constitute the largest membrane protein family in humans that detect various extracellular stimuli including odor, photons, nutrients, hormones, and neurotransmitters. They are the therapeutic targets for nearly a third of clinically marketed drugs. In the past years, studies have suggested that GPCRs play diverse physiological roles and convey their effects in a highly specific manner. As a member of the so-called orphan receptors, GPR61 is a 49 kDa GPCR that belongs to orphan receptors class A. It shares some degree of sequence similarity (28-31%) with certain histamine, adrenergic, serotonin, and dopamine receptors 2. What’s more, GPR61 has been reported to be broadly expressed in the brain, including in the cortex, hippocampus, thalamus, hypothalamus, and midbrain. Most importantly, GPR61 has a phenylalanine residue in the sixth transmembrane domain, which is conserved in many biogenic amine receptors. This phenylalanine residue is considered to interact with the aromatic ring of biogenic amine ligands.

Schematic drawing depicting the 7 helices and the different pathways upon G protein coupling. Fig.1 Schematic drawing depicting the 7 helices and the different pathways upon G protein coupling. (Veulens, 2009)

Application of GPR61 Membrane Protein in Literature

  1. Kozielewicz P., N-glycosylation and expression in human tissues of the orphan GPR61 receptor. FEBS open bio. 2017, 7(12):1982-93. PubMed ID: 29226084

    This article suggests that GPR61 protein is subject to post-translational modification and is expressed in immune cell subsets and the hippocampus which will help guide studies to investigate the function of GPR61.

  2. Oishi A., Orphan GPR61, GPR62 and GPR135 receptors and the melatonin MT 2 receptor reciprocally modulate their signaling functions. Scientific reports. 2017, 7(1):8990. PubMed ID: 28827538

    This article suggests that GPR61 is unable to bind melatonin, but show a reciprocal regulatory interaction with MT2 receptors.

  3. Pandey K., Heifers express G-protein coupled receptor 61 in anterior pituitary gonadotrophs in a stage-dependent manner. Animal reproduction science. 2017, 181:93-102. PubMed ID: 28433506

    This article aims to verify the assumption that GPR61 colocalizes with GnRHR in the plasma membrane of gonadotroph and is expressed at specific times of the reproductive cycle. It suggests that GPR61 colocalizes with GnRHR in the plasma membrane of gonadotrophs, and its expression changes stage-dependently in the bovine anterior pituitary gland.

  4. Nambu H., Characterization of metabolic phenotypes of mice lacking GPR61, an orphan G-protein coupled receptor. Life sciences. 2011, 89(21-22):765-72. PubMed ID: 21971119

    This article aims to elucidate the importance of GPR61 in metabolism by characterization of GPR61-deficient mice. Research results show that GPR61-deficient mice exhibited obesity associated with hyperphagia. It indicates that GPR61 is involved in the regulation of food intake and body weight, and may be of importance when considering GPR61 as a therapeutic target for obesity or eating disorders.

GPR61 Preparation Options

To offer high-quality membrane protein preparation services for global customers, we have developed an advanced Magic™ membrane protein production platform. Our professional scientists will work closely with you and help you find the most suitable program design for your particular project. Aided by our versatile Magic™ anti-membrane protein antibody discovery platform, we also provide customized anti-GPR61 antibody development services.

Based on years of experience and advanced platform, Creative Biolabs is confident in providing professional membrane protein products in the most high-quality and cost-effective way. We are happy to share our first-class techniques and extensive expertise to satisfy every client’s specific demands. In addition to GPR61 protein preparation service, we also provide other membrane protein products for global customers. For more details and information, please feel free to contact us.


  1. Veulens, (2009). Protein-coupled receptors as targets for drug design. Biotecnol April. 26, 24-33.

Online Inquiry

Verification code
Click image to refresh the verification code.


USA: 45-1 Ramsey Road, Shirley, NY 11967, USA
Call us at:
USA: 1-631-381-2994
Europe: 44-207-097-1828
Fax: 1-631-207-8356
Our customer service representatives are available 24 hours a day, 7 days a week. Contact Us