7-26844099-C-A

Variant summary

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

The NM_003930.5(SKAP2):c.238G>T(p.Ala80Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,610,064 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

SKAP2
NM_003930.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.841

Variant links:

Genes affected

SKAP2 (HGNC:15687): (src kinase associated phosphoprotein 2) The protein encoded by this gene shares homology with Src kinase-associated phosphoprotein 1, and is a substrate of Src family kinases. It is an adaptor protein that is thought to play an essential role in the Src signaling pathway, and in regulating proper activation of the immune system. This protein contains an amino terminal coiled-coil domain for self-dimerization, a plecskstrin homology (PH) domain required for interactions with lipids at the membrane, and a Src homology (SH3) domain at the carboxy terminus. Some reports indicate that this protein inhibits actin polymerization through interactions with actin assembly factors, and might negatively regulate the invasiveness of tumors by modulating actin assembly. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jan 2015]

SKAP2 links:

LOC124901606 (HGNC:):

LOC124901606 links:

Genome browser will be placed here

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=0.021037549).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SKAP2	NM_003930.5 linkuse as main transcript	c.238G>T	p.Ala80Ser	missense_variant	4/13	ENST00000345317.7
LOC124901606	XR_007060265.1 linkuse as main transcript	n.201-13365C>A		intron_variant, non_coding_transcript_variant
SKAP2	XM_017012771.3 linkuse as main transcript	c.238G>T	p.Ala80Ser	missense_variant	4/13
SKAP2	NM_001303468.2 linkuse as main transcript	c.-279G>T		5_prime_UTR_variant	4/13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SKAP2	ENST00000345317.7 linkuse as main transcript	c.238G>T	p.Ala80Ser	missense_variant	4/13	1	NM_003930.5	P1

Frequencies

GnomAD3 genomes

AF:

0.00000664

AC:

AN:

150560

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000148

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1459504

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726196

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:

9.01e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000664

AC:

AN:

150560

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

73338

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000148

Gnomad4 OTH

AF:

0.00

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

Jul 05, 2023

The c.238G>T (p.A80S) alteration is located in exon 4 (coding exon 4) of the SKAP2 gene. This alteration results from a G to T substitution at nucleotide position 238, causing the alanine (A) at amino acid position 80 to be replaced by a serine (S). 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

0.067

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.63

Cadd

Benign

0.091

Dann

Benign

0.19

DEOGEN2

Benign

0.039

T;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.52

T;T

M_CAP

Benign

0.0054

MetaRNN

Benign

0.021

T;T

MetaSVM

Benign

-0.91

MutationAssessor

Benign

-0.82

N;.

MutationTaster

Benign

1.0

D;N

PrimateAI

Benign

0.28

PROVEAN

Benign

1.1

N;N

REVEL

Benign

0.043

Sift

Benign

1.0

T;T

Sift4G

Benign

1.0

T;.

Polyphen

0.0

B;.

Vest4

0.17

MutPred

0.28

Gain of glycosylation at A80 (P = 0);.;

MVP

0.46

MPC

0.20

ClinPred

0.037

GERP RS

0.31

Varity_R

0.050

gMVP

0.18

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