rs536126761

Positions:

• chr1-2303882-C-T

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_Strong BP6_Very_Strong BP7 BS2

The NM_003036.4(SKI):​c.1254C>T​(p.Asn418=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000264 in 1,612,442 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.00022 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00027 (4 hom.)
• Consequence: SKI NM_003036.4 synonymous
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5
• Conservation: PhyloP100: -2.34

Genes affected

SKI (HGNC:10896): (SKI proto-oncogene) This gene encodes the nuclear protooncogene protein homolog of avian sarcoma viral (v-ski) oncogene. It functions as a repressor of TGF-beta signaling, and may play a role in neural tube development and muscle differentiation. [provided by RefSeq, Oct 2009]

ACMG classification

Verdict is Benign. Variant got -17 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.5).
• BP6: Variant 1-2303882-C-T is Benign according to our data. Variant chr1-2303882-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 392009.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-2.34 with no splicing effect.
• BS2: High AC in GnomAd4 at 34 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SKI	NM_003036.4	c.1254C>T	p.Asn418=	synonymous_variant	4/7	ENST00000378536.5	NP_003027.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SKI	ENST00000378536.5	c.1254C>T	p.Asn418=	synonymous_variant	4/7	1	NM_003036.4	ENSP00000367797	P1
SKI	ENST00000507179.1	n.237C>T		non_coding_transcript_exon_variant	1/2	2
SKI	ENST00000704337.1	n.422C>T		non_coding_transcript_exon_variant	4/4

Frequencies

GnomAD3 genomes AF: 0.000223 AC: 34 AN: 152164 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000483

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

Gnomad ASJ AF: 0.00202

Gnomad EAS AF: 0.000964

Gnomad SAS AF: 0.00269

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000882

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000565 AC: 137 AN: 242656 Hom.: 0 AF XY: 0.000690 AC XY: 92 AN XY: 133308

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000582

Gnomad ASJ exome AF: 0.00203

Gnomad EAS exome AF: 0.000331

Gnomad SAS exome AF: 0.00321

Gnomad FIN exome AF: 0.0000939

Gnomad NFE exome AF: 0.0000648

Gnomad OTH exome AF: 0.000336

GnomAD4 exome AF: 0.000268 AC: 392 AN: 1460160 Hom.: 4 Cov.: 32 AF XY: 0.000348 AC XY: 253 AN XY: 726392

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.0000447

Gnomad4 ASJ exome AF: 0.00234

Gnomad4 EAS exome AF: 0.000227

Gnomad4 SAS exome AF: 0.00304

Gnomad4 FIN exome AF: 0.0000384

Gnomad4 NFE exome AF: 0.0000288

Gnomad4 OTH exome AF: 0.000381

GnomAD4 genome AF: 0.000223 AC: 34 AN: 152282 Hom.: 0 Cov.: 32 AF XY: 0.000295 AC XY: 22 AN XY: 74460

Gnomad4 AFR AF: 0.0000481

Gnomad4 AMR AF: 0.0000654

Gnomad4 ASJ AF: 0.00202

Gnomad4 EAS AF: 0.000966

Gnomad4 SAS AF: 0.00269

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000882

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000246 Hom.: 0

Bravo AF: 0.000132

Asia WGS AF: 0.00115 AC: 4 AN: 3478

EpiCase AF: 0.000109

EpiControl AF: 0.000119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

Oct 28, 2016

- -

Familial thoracic aortic aneurysm and aortic dissection Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 30, 2018

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Dec 15, 2020

- -

Shprintzen-Goldberg syndrome Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 16, 2024

- -

SKI-related disorder Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 18, 2019

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.50
CADD	Benign	0.84
DANN	Benign	0.80
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs536126761; hg19: chr1-2235321; COSMIC: COSV66013509; COSMIC: COSV66013509;