chr16-57659478-A-G

Position:

• chr16-57659478-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP5_Moderate

The NM_201525.4(ADGRG1):​c.1352A>G​(p.Asp451Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,568 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: ADGRG1 NM_201525.4 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 7.03

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 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 16-57659478-A-G is Pathogenic according to our data. Variant chr16-57659478-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 520821.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ADGRG1	NM_201525.4	c.1352A>G	p.Asp451Gly	missense_variant	11/14	ENST00000562631.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ADGRG1	ENST00000562631.7	c.1352A>G	p.Asp451Gly	missense_variant	11/14	1	NM_201525.4	P4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461568 Hom.: 0 Cov.: 35 AF XY: 0.00000275 AC XY: 2 AN XY: 727104

Gnomad4 AFR exome AF: 0.0000597

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000658 Hom.: 0

Bravo AF: 0.0000264

ESP6500AA AF: 0.000227 AC: 1

ESP6500EA AF: 0.00 AC: 0

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 17, 2015

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.57
BayesDel_addAF	Uncertain	0.063	T
BayesDel_noAF	Benign	-0.15
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.22	.;T;T;.;.;.;.;.
Eigen	Pathogenic	0.72
Eigen_PC	Pathogenic	0.69
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.87	.;.;D;.;D;.;.;D
M_CAP	Uncertain	0.18	D
MetaRNN	Uncertain	0.73	D;D;D;D;D;D;D;D
MetaSVM	Uncertain	-0.033	T
MutationTaster	Benign	1.0	D;D;D;D;D;D;D;D;D;D;D;D;D
PrimateAI	Uncertain	0.49	T
PROVEAN	Uncertain	-2.4	N;N;N;N;.;N;N;N
REVEL	Benign	0.28
Sift	Uncertain	0.021	D;D;D;D;.;D;D;D
Sift4G	Uncertain	0.027	D;D;D;D;D;D;D;D
Polyphen		0.94	P;D;D;P;.;P;P;P
Vest4		0.59
MVP		0.96
ClinPred		0.97	D
GERP RS		4.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.75
gMVP		0.58

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

Other links and lift over

dbSNP: rs142684762; hg19: chr16-57693390;