chr7-50606346-C-T

Variant names:

• chr7-50606346-C-T
• rs61734187
• NM_001350814.2:c.1263G>A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6 BP7 BS1 BS2

The NM_001350814.2(GRB10):​c.1263G>A​(p.Ser421Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00133 in 1,613,726 control chromosomes in the GnomAD database, including 23 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (no stars).

• Frequency:
  • Genomes: 𝑓 0.0058 (11 hom., cov: 32)
  • Exomes 𝑓: 0.00086 (12 hom.)
• Consequence: GRB10 NM_001350814.2 synonymous
• Clinical Significance: Benign no assertion criteria provided B:1
• Conservation: PhyloP100: -0.994

Genes affected

GRB10 (HGNC:4564): (growth factor receptor bound protein 10) The product of this gene belongs to a small family of adapter proteins that are known to interact with a number of receptor tyrosine kinases and signaling molecules. This gene encodes a growth factor receptor-binding protein that interacts with insulin receptors and insulin-like growth-factor receptors. Overexpression of some isoforms of the encoded protein inhibits tyrosine kinase activity and results in growth suppression. This gene is imprinted in a highly isoform- and tissue-specific manner, with expression observed from the paternal allele in the brain, and from the maternal allele in the placental trophoblasts. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Oct 2010]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).
• BP6: Variant 7-50606346-C-T is Benign according to our data. Variant chr7-50606346-C-T is described in ClinVar as [Benign]. Clinvar id is 3052388.Status of the report is no_assertion_criteria_provided, 0 stars.
• BP7: Synonymous conserved (PhyloP=-0.994 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00582 (887/152314) while in subpopulation AFR AF= 0.0196 (814/41566). AF 95% confidence interval is 0.0185. There are 11 homozygotes in gnomad4. There are 409 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 887 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GRB10	NM_001350814.2	c.1263G>A	p.Ser421Ser	synonymous_variant	Exon 14 of 19	ENST00000401949.6	NP_001337743.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GRB10	ENST00000401949.6	c.1263G>A	p.Ser421Ser	synonymous_variant	Exon 14 of 19	1	NM_001350814.2	ENSP00000385770.1

Frequencies

GnomAD3 genomes AF: 0.00581 AC: 885 AN: 152196 Hom.: 11 Cov.: 32

Gnomad AFR AF: 0.0196

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00281

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000367

Gnomad OTH AF: 0.00191

GnomAD3 exomes AF: 0.00160 AC: 400 AN: 249578 Hom.: 8 AF XY: 0.00129 AC XY: 174 AN XY: 135404

Gnomad AFR exome AF: 0.0214

Gnomad AMR exome AF: 0.00113

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000556

Gnomad SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000194

Gnomad OTH exome AF: 0.000825

GnomAD4 exome AF: 0.000859 AC: 1256 AN: 1461412 Hom.: 12 Cov.: 30 AF XY: 0.000783 AC XY: 569 AN XY: 727060

Gnomad4 AFR exome AF: 0.0211

Gnomad4 AMR exome AF: 0.00112

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.0000348

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000363

Gnomad4 OTH exome AF: 0.00144

GnomAD4 genome AF: 0.00582 AC: 887 AN: 152314 Hom.: 11 Cov.: 32 AF XY: 0.00549 AC XY: 409 AN XY: 74472

Gnomad4 AFR AF: 0.0196

Gnomad4 AMR AF: 0.00281

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000367

Gnomad4 OTH AF: 0.00189

Alfa AF: 0.00294 Hom.: 4

Bravo AF: 0.00623

Asia WGS AF: 0.000577 AC: 2 AN: 3478

EpiCase AF: 0.000382

EpiControl AF: 0.000237

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

Submissions by phenotype

GRB10-related disorder Benign:1

Mar 01, 2019

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	0.41
DANN	Benign	0.51
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8

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: rs61734187; hg19: chr7-50674043;