Genetic Variant SRRM3:p.Arg250Trp (chr7-76265386-C-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001110199.3(SRRM3):c.748C>T(p.Arg250Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000237 in 1,601,668 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 10/14 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

SRRM3
NM_001110199.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.925

Variant links:

Genes affected

SRRM3 (HGNC:26729): (serine/arginine repetitive matrix 3) Predicted to enable mRNA binding activity. [provided by Alliance of Genome Resources, Apr 2022]

SRRM3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.075546116).

BS2

High AC in GnomAd4 at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SRRM3	NM_001110199.3 link	c.748C>T	p.Arg250Trp	missense_variant	Exon 10 of 15	ENST00000611745.2	NP_001103669.1	A0A087WXA3
SRRM3	NM_001291831.2 link	c.748C>T	p.Arg250Trp	missense_variant	Exon 10 of 16		NP_001278760.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SRRM3	ENST00000611745.2 link	c.748C>T	p.Arg250Trp	missense_variant	Exon 10 of 15	5	NM_001110199.3	ENSP00000480851.1		A0A087WXA3
SRRM3	ENST00000464752.1 link	c.-21C>T		upstream_gene_variant		2		ENSP00000483698.1		A0A087X0W5

Frequencies

GnomAD3 genomes

AF:

0.0000921

AC:

AN:

152024

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000338

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000252

AC:

AN:

238074

Hom.:

AF XY:

0.0000309

AC XY:

AN XY:

129654

show subpopulations

Gnomad AFR exome

AF:

0.000139

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000699

Gnomad FIN exome

AF:

0.0000467

Gnomad NFE exome

AF:

0.00000913

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000166

AC:

AN:

1449526

Hom.:

Cov.:

AF XY:

0.0000194

AC XY:

AN XY:

720772

show subpopulations

Gnomad4 AFR exome

AF:

0.000276

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000597

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

0.00000723

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.0000920

AC:

AN:

152142

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74358

show subpopulations

Gnomad4 AFR

AF:

0.000337

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000336

Hom.:

Bravo

AF:

0.0000680

ExAC

AF:

0.0000332

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 22, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.748C>T (p.R250W) alteration is located in exon 10 (coding exon 9) of the SRRM3 gene. This alteration results from a C to T substitution at nucleotide position 748, causing the arginine (R) at amino acid position 250 to be replaced by a tryptophan (W). 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

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.42

CADD

Benign

DANN

Uncertain

0.99

Eigen

Benign

-0.093

Eigen_PC

Benign

0.041

FATHMM_MKL

Benign

0.40

LIST_S2

Benign

0.76

M_CAP

Benign

0.0040

MetaRNN

Benign

0.076

MetaSVM

Benign

-0.99

PrimateAI

Benign

0.41

Sift4G

Uncertain

0.059

Vest4

0.28

MVP

0.043

ClinPred

0.29

GERP RS

3.9

gMVP

0.14

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

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