16-57656598-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PP3_Strong

The ENST00000562631.7(ADGRG1):​c.1148C>T​(p.Thr383Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,458,834 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T383N) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

ADGRG1
ENST00000562631.7 missense

Scores

13
4
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.57
Variant links:
Genes affected
ADGRG1 (HGNC:4512): (adhesion G protein-coupled receptor G1) This gene encodes a member of the G protein-coupled receptor family and regulates brain cortical patterning. The encoded protein binds specifically to transglutaminase 2, a component of tissue and tumor stroma implicated as an inhibitor of tumor progression. Mutations in this gene are associated with a brain malformation known as bilateral frontoparietal polymicrogyria. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2014]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM1
In a mutagenesis_site Abolishes cleavage but does not affect cell membrane localization or signaling activity. (size 0) in uniprot entity AGRG1_HUMAN
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.978

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ADGRG1NM_201525.4 linkuse as main transcriptc.1148C>T p.Thr383Ile missense_variant 9/14 ENST00000562631.7 NP_958933.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ADGRG1ENST00000562631.7 linkuse as main transcriptc.1148C>T p.Thr383Ile missense_variant 9/141 NM_201525.4 ENSP00000455351 P4Q9Y653-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251488
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1458834
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
725954
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Bilateral frontoparietal polymicrogyria Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testing3billionMay 22, 2022The variant is observed at an extremely low frequency in the gnomAD v2.1.1 dataset (total allele frequency: <0.001%). In silico tool predictions suggest damaging effect of the variant on gene or gene product (REVEL: 0.94; 3Cnet: 0.82). Therefore, this variant is classified as uncertain significanceaccording to the recommendation of ACMG/AMP guideline. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.37
D
BayesDel_noAF
Pathogenic
0.40
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.87
.;D;D;.;.;.;.;.
Eigen
Pathogenic
0.97
Eigen_PC
Pathogenic
0.87
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.89
.;.;D;.;D;.;.;D
M_CAP
Pathogenic
0.52
D
MetaRNN
Pathogenic
0.98
D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
0.92
D
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D;D;D;D;D;D
PrimateAI
Uncertain
0.69
T
PROVEAN
Pathogenic
-5.6
D;D;D;D;.;D;D;D
REVEL
Pathogenic
0.94
Sift
Uncertain
0.0010
D;D;D;D;.;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;D;D;D;D
Polyphen
1.0
D;D;D;D;.;D;D;D
Vest4
0.95
MutPred
0.84
Gain of catalytic residue at L388 (P = 0.053);Gain of catalytic residue at L388 (P = 0.053);Gain of catalytic residue at L388 (P = 0.053);Gain of catalytic residue at L388 (P = 0.053);.;Gain of catalytic residue at L388 (P = 0.053);Gain of catalytic residue at L388 (P = 0.053);Gain of catalytic residue at L388 (P = 0.053);
MVP
0.98
ClinPred
1.0
D
GERP RS
5.6
Varity_R
0.94
gMVP
0.92

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1305914929; hg19: chr16-57690510; API