rs747812668

chr16-57659497-C-Gchr16-57659497-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_201525.4(ADGRG1):c.1371C>G(p.Ser457Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. S457S) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ADGRG1 NM_201525.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -4.01

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.752

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ADGRG1	NM_201525.4	c.1371C>G	p.Ser457Arg	missense_variant	11/14	ENST00000562631.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ADGRG1	ENST00000562631.7	c.1371C>G	p.Ser457Arg	missense_variant	11/14	1	NM_201525.4	P4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000807 AC: 2 AN: 247942 Hom.: 0 AF XY: 0.00000744 AC XY: 1 AN XY: 134392

Gnomad AFR exome AF: 0.0000626

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000896

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Benign	-0.028	T
BayesDel_noAF	Benign	-0.28
Cadd	Benign	2.7
Dann	Uncertain	0.99
Eigen	Benign	-0.71
Eigen_PC	Benign	-0.97
FATHMM_MKL	Benign	0.16	N
M_CAP	Benign	0.082	D
MetaRNN	Pathogenic	0.75	D;D;D;D;D;D;D;D
MetaSVM	Benign	-0.52	T
MutationTaster	Benign	0.84	D;D;D;D;D;D;D;D;D;D;D;D;D
PrimateAI	Uncertain	0.61	T
PROVEAN	Uncertain	-3.0	D;D;D;D;.;D;D;D
Sift	Uncertain	0.0020	D;D;D;D;.;D;D;D
Sift4G	Uncertain	0.0050	D;D;D;D;D;D;D;D
Polyphen		0.99	D;D;D;D;.;D;D;D
Vest4		0.73
MutPred		0.54		.;Gain of methylation at S463 (P = 0.0345);Gain of methylation at S463 (P = 0.0345);.;.;.;.;.;
MVP		0.83
ClinPred		0.80	D
GERP RS		-7.8
Varity_R		0.70
gMVP		0.57

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		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

Other links and lift over

dbSNP: rs747812668; hg19: chr16-57693409;