Genetic Variant SKI:p.Ala630Ala (chr1-2306142-C-T) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_ModerateBP6BP7BS2

The NM_003036.4(SKI):c.1890C>T(p.Ala630Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000192 in 1,595,068 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A630A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00019 ( 0 hom. )

Consequence

SKI
NM_003036.4 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: -0.138

Publications

1 publications found

Variant links:

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]

SKI Gene-Disease associations (from GenCC):

Shprintzen-Goldberg syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia, G2P, Orphanet, Genomics England PanelApp, ClinGen

SKI links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.41).

BP6

Variant 1-2306142-C-T is Benign according to our data. Variant chr1-2306142-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 198155.

BP7

Synonymous conserved (PhyloP=-0.138 with no splicing effect.

BS2

High AC in GnomAd4 at 26 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003036.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SKI	NM_003036.4	MANE Select	c.1890C>T	p.Ala630Ala	synonymous	Exon 6 of 7	NP_003027.1	P12755

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SKI	ENST00000378536.5	TSL:1 MANE Select	c.1890C>T	p.Ala630Ala	synonymous	Exon 6 of 7	ENSP00000367797.4	P12755
	SKI	ENST00000851187.1		c.1896C>T	p.Ala632Ala	synonymous	Exon 6 of 7	ENSP00000521247.1

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152244

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.000353

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000847

AC:

AN:

212590

AF XY:

0.000112

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000329

Gnomad ASJ exome

AF:

0.000108

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000160

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000194

AC:

280

AN:

1442824

Hom.:

Cov.:

AF XY:

0.000187

AC XY:

134

AN XY:

715860

show subpopulations

African (AFR)

AF:

0.0000601

AC:

AN:

33284

American (AMR)

AF:

0.00

AC:

AN:

41438

Ashkenazi Jewish (ASJ)

AF:

0.0000389

AC:

AN:

25724

East Asian (EAS)

AF:

0.00

AC:

AN:

38978

South Asian (SAS)

AF:

0.0000480

AC:

AN:

83248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50534

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5742

European-Non Finnish (NFE)

AF:

0.000245

AC:

271

AN:

1104166

Other (OTH)

AF:

0.0000335

AC:

AN:

59710

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.476

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000171

AC:

AN:

152244

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74386

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41464

American (AMR)

AF:

0.000131

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4838

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000353

AC:

AN:

68038

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.519

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000147

Hom.:

Bravo

AF:

0.000159

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Familial thoracic aortic aneurysm and aortic dissection (1)

not specified (1)

Shprintzen-Goldberg syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.41

CADD

Benign

8.4

(source)

DANN

Benign

0.95

PhyloP100

-0.14

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Mutation Taster

=100/0

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over