Variant 17-64546301-A-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_022739.4(SMURF2):c.2109T>G(p.Ile703Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000285 in 1,613,962 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

SMURF2
NM_022739.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.524

Variant links:

Genes affected

SMURF2 (HGNC:16809): (SMAD specific E3 ubiquitin protein ligase 2) Enables SMAD binding activity; identical protein binding activity; and ubiquitin-protein transferase activity. Involved in negative regulation of transforming growth factor beta receptor signaling pathway; positive regulation of trophoblast cell migration; and ubiquitin-dependent SMAD protein catabolic process. Located in nuclear speck. Part of ubiquitin ligase complex. [provided by Alliance of Genome Resources, Apr 2022]

SMURF2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
SMURF2	NM_022739.4 linkuse as main transcript	c.2109T>G	p.Ile703Met	missense_variant	18/19	ENST00000262435.14	NP_073576.1
SMURF2	XM_047436546.1 linkuse as main transcript	c.2115T>G	p.Ile705Met	missense_variant	18/19		XP_047292502.1
SMURF2	XM_005257585.4 linkuse as main transcript	c.2070T>G	p.Ile690Met	missense_variant	17/18		XP_005257642.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
SMURF2	ENST00000262435.14 linkuse as main transcript	c.2109T>G	p.Ile703Met	missense_variant	18/19	1	NM_022739.4	ENSP00000262435	P1
SMURF2	ENST00000578386.5 linkuse as main transcript	c.*1931T>G		3_prime_UTR_variant, NMD_transcript_variant	18/19	1		ENSP00000464432
SMURF2	ENST00000582081.5 linkuse as main transcript	c.*2016T>G		3_prime_UTR_variant, NMD_transcript_variant	18/19	5		ENSP00000463531

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000318

AC:

AN:

251300

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135816

show subpopulations

Gnomad AFR exome

AF:

0.0000615

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:

0.0000924

Gnomad NFE exome

AF:

0.0000440

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000260

AC:

AN:

1461738

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

727158

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:

0.000112

Gnomad4 NFE exome

AF:

0.0000270

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74356

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.000103

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000141

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

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

May 15, 2023

The c.2109T>G (p.I703M) alteration is located in exon 18 (coding exon 18) of the SMURF2 gene. This alteration results from a T to G substitution at nucleotide position 2109, causing the isoleucine (I) at amino acid position 703 to be replaced by a methionine (M). 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

0.41

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.23

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.18

Eigen

Benign

-0.091

Eigen_PC

Benign

-0.21

FATHMM_MKL

Benign

0.48

LIST_S2

Pathogenic

0.98

M_CAP

Benign

0.031

MetaRNN

Uncertain

0.67

MetaSVM

Benign

-0.82

MutationAssessor

Benign

1.9

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

-2.0

REVEL

Uncertain

0.31

Sift

Benign

0.078

Sift4G

Benign

0.14

Polyphen

0.98

Vest4

0.70

MutPred

0.57

Gain of catalytic residue at I703 (P = 0.0278);

MVP

0.58

MPC

1.7

ClinPred

0.49

GERP RS

2.3

Varity_R

0.44

gMVP

0.37

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