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G protein-coupled receptor 21

Summary

Gene Symbol

GPR21

Organism

Homo sapiens (human)

External Links

NCBI Gene

2844

PubChem

2844

Alliance of Genome Resources

HGNC:4476

JoGo

GPR21

TogoVar

GPR21

Annotation

Keyword

3D-structure
Cell membrane
G-protein coupled receptor
Glycoprotein
Reference proteome
Transmembrane helix

Proteins

Displaying **all 2** entries
UniProt	Protein Name
Q99679
B4DSD1

Annotation information from UniProt.

Gene Ontology (GO)

Displaying **all 5** entries
GO Term	Evidence Code	PMID
G protein-coupled receptor signaling pathway	IBA
insulin receptor signaling pathway	IEA
positive regulation of multicellular organism growth	IEA
glucose homeostasis	IEA
negative regulation of insulin receptor signaling pathway	IEA

GO Hierarchy

biological process

cellular process [inference]

signal transduction [inference]

cell surface receptor signaling pathway [inference]

enzyme-linked receptor protein signaling pathway [inference]

transmembrane receptor protein tyrosine kinase signaling pathway [inference]

insulin receptor signaling pathway

G protein-coupled receptor signaling pathway

homeostatic process [inference]

chemical homeostasis [inference]

carbohydrate homeostasis [inference]

glucose homeostasis

biological regulation [inference]

regulation of biological process [inference]

regulation of signaling [inference]

regulation of signal transduction [inference]

negative regulation of signal transduction [inference]

negative regulation of insulin receptor signaling pathway

regulation of insulin receptor signaling pathway [inference]

negative regulation of insulin receptor signaling pathway

negative regulation of signaling [inference]

negative regulation of signal transduction [inference]

negative regulation of insulin receptor signaling pathway

regulation of growth [inference]

positive regulation of growth [inference]

positive regulation of developmental growth [inference]

positive regulation of multicellular organism growth

regulation of developmental growth [inference]

regulation of multicellular organism growth [inference]

positive regulation of multicellular organism growth

positive regulation of developmental growth [inference]

positive regulation of multicellular organism growth

positive regulation of biological process [inference]

positive regulation of growth [inference]

positive regulation of developmental growth [inference]

positive regulation of multicellular organism growth

positive regulation of developmental process [inference]

positive regulation of developmental growth [inference]

positive regulation of multicellular organism growth

positive regulation of multicellular organismal process [inference]

positive regulation of multicellular organism growth

negative regulation of biological process [inference]

negative regulation of signaling [inference]

negative regulation of signal transduction [inference]

negative regulation of insulin receptor signaling pathway

negative regulation of cellular process [inference]

negative regulation of cell communication [inference]

negative regulation of signal transduction [inference]

negative regulation of insulin receptor signaling pathway

negative regulation of cellular response to insulin stimulus [inference]

negative regulation of insulin receptor signaling pathway

negative regulation of response to stimulus [inference]

negative regulation of signal transduction [inference]

negative regulation of insulin receptor signaling pathway

negative regulation of cellular response to insulin stimulus [inference]

negative regulation of insulin receptor signaling pathway

regulation of response to stimulus [inference]

regulation of signal transduction [inference]

negative regulation of signal transduction [inference]

negative regulation of insulin receptor signaling pathway

regulation of insulin receptor signaling pathway [inference]

negative regulation of insulin receptor signaling pathway

negative regulation of response to stimulus [inference]

negative regulation of signal transduction [inference]

negative regulation of insulin receptor signaling pathway

negative regulation of cellular response to insulin stimulus [inference]

negative regulation of insulin receptor signaling pathway

regulation of cellular response to insulin stimulus [inference]

negative regulation of cellular response to insulin stimulus [inference]

negative regulation of insulin receptor signaling pathway

regulation of developmental process [inference]

regulation of developmental growth [inference]

regulation of multicellular organism growth [inference]

positive regulation of multicellular organism growth

positive regulation of developmental growth [inference]

positive regulation of multicellular organism growth

positive regulation of developmental process [inference]

positive regulation of developmental growth [inference]

positive regulation of multicellular organism growth

regulation of cellular process [inference]

signal transduction [inference]

cell surface receptor signaling pathway [inference]

enzyme-linked receptor protein signaling pathway [inference]

transmembrane receptor protein tyrosine kinase signaling pathway [inference]

insulin receptor signaling pathway

G protein-coupled receptor signaling pathway

regulation of cell communication [inference]

regulation of signal transduction [inference]

negative regulation of signal transduction [inference]

negative regulation of insulin receptor signaling pathway

regulation of insulin receptor signaling pathway [inference]

negative regulation of insulin receptor signaling pathway

negative regulation of cell communication [inference]

negative regulation of signal transduction [inference]

negative regulation of insulin receptor signaling pathway

negative regulation of cellular process [inference]

negative regulation of cell communication [inference]

negative regulation of signal transduction [inference]

negative regulation of insulin receptor signaling pathway

negative regulation of cellular response to insulin stimulus [inference]

negative regulation of insulin receptor signaling pathway

regulation of cellular response to insulin stimulus [inference]

negative regulation of cellular response to insulin stimulus [inference]

negative regulation of insulin receptor signaling pathway

regulation of multicellular organismal process [inference]

regulation of multicellular organism growth [inference]

positive regulation of multicellular organism growth

positive regulation of multicellular organismal process [inference]

positive regulation of multicellular organism growth

Displaying 1 entry
GO Term	Evidence Code	PMID
plasma membrane	IBA

GO Hierarchy

cellular component

cellular anatomical entity [inference]

membrane [inference]

plasma membrane

Displaying 1 entry
GO Term	Evidence Code	PMID
G protein-coupled receptor activity	IBA

GO Hierarchy

molecular function

molecular transducer activity [inference]

signaling receptor activity [inference]

transmembrane signaling receptor activity [inference]

G protein-coupled receptor activity

Gene Ontology information from NCBI Gene and UniProt.

OrthoDB (Group)

Group level

Eukaryota

Group Name

rab GTPase-activating protein 1-like isoform 1

Functional Category

E: Amino acid transport and metabolism
O: Posttranslational modification, protein turnover, chaperones
T: Signal transduction mechanisms

Displaying **all 2** entries
Gene Ontology
cellular response to light stimulus
phototransduction

Displaying **all 2** entries
InterPro
G protein-coupled receptor, rhodopsin-like
GPCR, rhodopsin-like, 7TM

International Collaboration

GlyCosmos is a member of the GlySpace Alliance together with GlyGen and Glycomics@ExPASy.

Acknowledgements

Supported by JST NBDC Grant Number JPMJND2204

Partly supported by NIH Common Fund Grant #1U01GM125267-01

GlyCosmos Portal v4.5.0

Last updated: April 6, 2026

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