17-76736270-C-A

Position:

chr17-76736270-C-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_001195427.2(SRSF2):c.557G>T(p.Arg186Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000259 in 1,614,042 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R186G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00027 ( 0 hom. )

Consequence

SRSF2
NM_001195427.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.35

Variant links:

Genes affected

SRSF2 (HGNC:10783): (serine and arginine rich splicing factor 2) The protein encoded by this gene is a member of the serine/arginine (SR)-rich family of pre-mRNA splicing factors, which constitute part of the spliceosome. Each of these factors contains an RNA recognition motif (RRM) for binding RNA and an RS domain for binding other proteins. The RS domain is rich in serine and arginine residues and facilitates interaction between different SR splicing factors. In addition to being critical for mRNA splicing, the SR proteins have also been shown to be involved in mRNA export from the nucleus and in translation. Two transcript variants encoding the same protein and one non-coding transcript variant have been found for this gene. In addition, a pseudogene of this gene has been found on chromosome 11. [provided by RefSeq, Sep 2010]

SRSF2 links:

MFSD11 (HGNC:25458): (major facilitator superfamily domain containing 11) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

MFSD11 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2

Missense variant where missense usually causes diseases, SRSF2

BP4

Computational evidence support a benign effect (MetaRNN=0.20164248).

BS2

High AC in GnomAd4 at 26 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SRSF2	NM_001195427.2 linkuse as main transcript	c.557G>T	p.Arg186Leu	missense_variant	2/3	ENST00000359995.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SRSF2	ENST00000359995.10 linkuse as main transcript	c.557G>T	p.Arg186Leu	missense_variant	2/3	1	NM_001195427.2	P1	Q01130-1

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000206

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000104

AC:

AN:

251192

Hom.:

AF XY:

0.0000884

AC XY:

AN XY:

135816

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.000211

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000268

AC:

392

AN:

1461870

Hom.:

Cov.:

AF XY:

0.000267

AC XY:

194

AN XY:

727238

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000447

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:

0.000346

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.000171

AC:

AN:

152172

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74344

show subpopulations

Gnomad4 AFR

AF:

0.000217

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000206

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000270

Hom.:

Bravo

AF:

0.000181

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.0000988

AC:

EpiCase

AF:

0.000327

EpiControl

AF:

0.000178

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

Feb 15, 2023

The c.557G>T (p.R186L) alteration is located in exon 2 (coding exon 2) of the SRSF2 gene. This alteration results from a G to T substitution at nucleotide position 557, causing the arginine (R) at amino acid position 186 to be replaced by a leucine (L). 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

Uncertain

0.36

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.33

CADD

Pathogenic

DANN

Benign

0.69

DEOGEN2

Benign

0.37

T;T;.

Eigen

Benign

-0.0013

Eigen_PC

Benign

-0.070

FATHMM_MKL

Uncertain

0.79

M_CAP

Benign

0.035

MetaRNN

Benign

0.20

T;T;T

MetaSVM

Benign

-0.84

MutationAssessor

Benign

2.0

M;M;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

-2.1

N;.;.

REVEL

Benign

0.17

Sift

Uncertain

0.024

D;.;.

Sift4G

Benign

0.078

T;T;D

Polyphen

0.80

P;P;.

Vest4

0.32

MVP

0.31

MPC

1.8

ClinPred

0.15

GERP RS

5.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.29

gMVP

0.60

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