Basic information

Full name
glutamate metabotropic receptor 4
Ensembl
ENSG00000124493.14
Summary
L-glutamate is the major excitatory neurotransmitter in the central nervous system and activates both ionotropic and metabotropic glutamate receptors. Glutamatergic neurotransmission is involved in most aspects of normal brain function and can be perturbed in many neuropathologic conditions. The metabotropic glutamate receptors are a family of G protein-coupled receptors, that have been divided into 3 groups on the basis of sequence homology, putative signal transduction mechanisms, and pharmacologic properties. Group I includes GRM1 and GRM5 and these receptors have been shown to activate phospholipase C. Group II includes GRM2 and GRM3 while Group III includes GRM4, GRM6, GRM7 and GRM8. Group II and III receptors are linked to the inhibition of the cyclic AMP cascade but differ in their agonist selectivities. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2012]
Annotation
Druggable target (Tier T4) Receptor

Protein product

  • ENST00000538487.7 Primary ENSP00000440556.1 (0 phosphosite)
  • ENST00000374181.8
  • ENST00000374177.7
  • ENST00000535756.5
  • ENST00000609222.5
  • ENST00000455714.6
  • ENST00000544773.6
Phosphosites on the primary protein product
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Tumor and normal comparison

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Signed p-values
Data type
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
RNA8.3e-17-0.7--1.6e-102.5e-213.7e-10--9.4e-5-
protein-----------

* P-values are from Wilcoxon rank sum test and can be clicked to show the box plots. Positive values mean higher abundance in tumor. BRCA and GBM do not have normal samples.

mRNA expression at gene level
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC01234567891011log2(RSEM+1)tumornormal
Protein expression
GBM15.51616.51717.51818.51919.5log2(MS1 intensity)tumor

* Mild outlier: filled circle; Extreme outlier: empty circle.

Phenotype and mutation association

Manhattan plot summarizing associations of phenotypes and mutations across all cohorts and omics data types

BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC02468101214161820222426280-2-4-6-8-10-12-14-16-18-20-22-24-26-28Pan-cancer012345678910110-1-2-3-4-5-6-7-8-9-10-11proteinRNASCNVclinicalpathwaycell typegenomicmutation-log10 of P-value

* Data points of significant associations above and below the dotted lines can be hovered to show the phenotype.

Associations of the protein abundance of GRM4 with phenotypes and mutations

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Signed p-values
Phenotype
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
DISEASE-PSP_Alzheimer's_disease2.6e-4---2.6e-4------
HALLMARK_SPERMATOGENESIS3.3e-4---3.3e-4------
HALLMARK_PANCREAS_BETA_CELLS5.1e-4---5.1e-4------
KINASE-PSP_CDK50.004---0.004------
HALLMARK_HEDGEHOG_SIGNALING6.8e-3---6.8e-3------
xcell: Hematopoietic stem cell0.013---0.013------
KINASE-PSP_GSK3B0.019---0.019------
HALLMARK_KRAS_SIGNALING_DN0.02---0.02------
cibersort: Mast cell resting0.034---0.034------
Clinical: Tumor_Size_cm0.042---0.042------
Showing 1 to 10 of 256 rows

* P-values could be from test for Spearman correlation, Wilcoxon rank sum test, Jonckheere-Terpstra trend test or Cox regression depending on the data type. P-values for individual cohorts can be clicked to show the data plots. The matrix icons in each row can be clicked to show a heatmap summary of associations across all cohorts and omics. The rows in the table can be expanded to show results from other omics.

Cis-association

Associations between omics data of GRM4

BRCA-0.14proteinmRNASCNVmethylationCCRCC-0.12-0.030.08proteinmRNASCNVmethylationCOAD0.08proteinmRNASCNVmethylationGBM0.55-0.130.07-0.040.07-0.18proteinmRNASCNVmethylationHNSCC-0.150.19-0.04proteinmRNASCNVmethylationLSCC-0.250.20-0.01proteinmRNASCNVmethylationLUAD0.000.120.08proteinmRNASCNVmethylationOV0.12proteinmRNASCNVmethylationPDAC-0.02-0.120.05proteinmRNASCNVmethylationUCEC-0.050.110.01proteinmRNASCNVmethylation

* The numbers are Spearman correlation coefficients and can be clicked to show the scatter plots. The color and size of the circles correlate with the coefficients.

Trans-association

Associations of the protein abundance of GRM4 and the protein abundance of other genes

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Signed p-values
Gene
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
No matching records found

* P-values are from test for Spearman correlation. P-values for individual cohorts can be clicked to show the data plots. The matrix icons in each row can be clicked to show a heatmap summary of associations across all cohorts and omics. The rows in the table can be expanded to show results from other omics.

Gene set enrichment analysis

Submit genes and the common logarithm of the p-values of their association with to WebGestalt.