Variant 2-17665599-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001142286.2(SMC6):c.3176G>C(p.Ser1059Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000435 in 1,607,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

SMC6
NM_001142286.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.17

Variant links:

Genes affected

SMC6 (HGNC:20466): (structural maintenance of chromosomes 6) Enables ubiquitin protein ligase binding activity. Involved in several processes, including cellular senescence; positive regulation of chromosome segregation; and telomere maintenance via recombination. Located in chromosome and nuclear body. Part of Smc5-Smc6 complex. [provided by Alliance of Genome Resources, Apr 2022]

SMC6 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.20791835).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SMC6	NM_001142286.2 linkuse as main transcript	c.3176G>C	p.Ser1059Thr	missense_variant	28/28	ENST00000448223.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SMC6	ENST00000448223.7 linkuse as main transcript	c.3176G>C	p.Ser1059Thr	missense_variant	28/28	1	NM_001142286.2	P1	Q96SB8-1
SMC6	ENST00000351948.8 linkuse as main transcript	c.3176G>C	p.Ser1059Thr	missense_variant	27/27	1		P1	Q96SB8-1
SMC6	ENST00000402989.5 linkuse as main transcript	c.3176G>C	p.Ser1059Thr	missense_variant	30/30	2		P1	Q96SB8-1
SMC6	ENST00000481708.1 linkuse as main transcript	n.3424G>C		non_coding_transcript_exon_variant	4/4	2

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152090

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:

0.000192

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:

0.0000161

AC:

AN:

248210

Hom.:

AF XY:

0.0000223

AC XY:

AN XY:

134260

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000220

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000412

AC:

AN:

1455796

Hom.:

Cov.:

AF XY:

0.00000414

AC XY:

AN XY:

724324

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000127

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

AF:

0.00000658

AC:

AN:

152090

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74272

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000192

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ExAC

AF:

0.0000165

AC:

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 03, 2023

The c.3176G>C (p.S1059T) alteration is located in exon 28 (coding exon 26) of the SMC6 gene. This alteration results from a G to C substitution at nucleotide position 3176, causing the serine (S) at amino acid position 1059 to be replaced by a threonine (T). 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

0.10

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.30

Cadd

Benign

Dann

Benign

0.96

DEOGEN2

Benign

0.059

T;T;T

Eigen

Uncertain

0.21

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Uncertain

0.92

M_CAP

Benign

0.018

MetaRNN

Benign

0.21

T;T;T

MetaSVM

Benign

-0.78

MutationAssessor

Benign

1.4

L;L;L

MutationTaster

Benign

0.88

D;D;D;D

PrimateAI

Uncertain

0.56

PROVEAN

Benign

-1.9

N;N;N

REVEL

Benign

0.11

Sift

Benign

0.14

T;T;T

Sift4G

Benign

0.20

T;T;T

Polyphen

0.83

P;P;P

Vest4

0.31

MutPred

0.48

Loss of stability (P = 0.028);Loss of stability (P = 0.028);Loss of stability (P = 0.028);

MVP

0.67

MPC

0.35

ClinPred

0.21

GERP RS

5.3

Varity_R

0.12

gMVP

0.44

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