Variant chr22-39968257-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_004810.4(GRAP2):c.675C>G(p.His225Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,388 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

GRAP2
NM_004810.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.38

Variant links:

Genes affected

GRAP2 (HGNC:4563): (GRB2 related adaptor protein 2) This gene encodes a member of the GRB2/Sem5/Drk family. This member is an adaptor-like protein involved in leukocyte-specific protein-tyrosine kinase signaling. Like its related family member, GRB2-related adaptor protein (GRAP), this protein contains an SH2 domain flanked by two SH3 domains. This protein interacts with other proteins, such as GRB2-associated binding protein 1 (GAB1) and the SLP-76 leukocyte protein (LCP2), through its SH3 domains. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Apr 2014]

GRAP2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.051003605).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GRAP2	NM_004810.4 linkuse as main transcript	c.675C>G	p.His225Gln	missense_variant	6/8	ENST00000344138.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GRAP2	ENST00000344138.9 linkuse as main transcript	c.675C>G	p.His225Gln	missense_variant	6/8	1	NM_004810.4	P1	O75791-1
GRAP2	ENST00000407075.3 linkuse as main transcript	c.675C>G	p.His225Gln	missense_variant	5/7	1		P1	O75791-1
GRAP2	ENST00000481263.1 linkuse as main transcript	n.325C>G		non_coding_transcript_exon_variant	2/2	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460388

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726566

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000227

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 30, 2023

The c.675C>G (p.H225Q) alteration is located in exon 6 (coding exon 5) of the GRAP2 gene. This alteration results from a C to G substitution at nucleotide position 675, causing the histidine (H) at amino acid position 225 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.093

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.51

CADD

Benign

0.17

DANN

Benign

0.75

DEOGEN2

Benign

0.21

T;T

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.7

FATHMM_MKL

Benign

0.031

LIST_S2

Benign

0.51

.;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.051

T;T

MetaSVM

Benign

-0.95

MutationAssessor

Benign

0.81

L;L

MutationTaster

Benign

1.0

N;N;N;N;N;N

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.31

N;N

REVEL

Benign

0.026

Sift

Benign

0.36

T;T

Sift4G

Benign

0.34

T;T

Polyphen

0.0030

B;B

Vest4

0.19

MutPred

0.21

Gain of MoRF binding (P = 0.2439);Gain of MoRF binding (P = 0.2439);

MVP

0.57

MPC

0.39

ClinPred

0.20

GERP RS

-10

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.041

gMVP

0.17

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

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over