chr1-2228792-G-A

Position:

• chr1-2228792-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_003036.4(SKI):​c.26G>A​(p.Gly9Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. G9G) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: SKI NM_003036.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.99

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 Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.24214426).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SKI	NM_003036.4	c.26G>A	p.Gly9Asp	missense_variant	1/7	ENST00000378536.5	NP_003027.1
SKI	XM_005244775.4	c.26G>A	p.Gly9Asp	missense_variant	1/7		XP_005244832.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SKI	ENST00000378536.5	c.26G>A	p.Gly9Asp	missense_variant	1/7	1	NM_003036.4	ENSP00000367797.4
SKI	ENST00000704337.1	n.137+1268G>A		intron_variant

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1171940 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 576260

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: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jun 26, 2019

Has not been previously published as pathogenic or benign to our knowledge; Not observed in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.21
BayesDel_addAF	Uncertain	0.042	T
BayesDel_noAF	Benign	-0.18
CADD	Uncertain	25
DANN	Benign	0.87
DEOGEN2	Benign	0.20	T
Eigen	Benign	-0.83
Eigen_PC	Benign	-0.83
FATHMM_MKL	Uncertain	0.81	D
LIST_S2	Benign	0.54	T
M_CAP	Pathogenic	0.94	D
MetaRNN	Benign	0.24	T
MetaSVM	Uncertain	-0.13	T
MutationAssessor	Benign	0.0	N
PrimateAI	Pathogenic	0.91	D
PROVEAN	Benign	0.34	N
REVEL	Benign	0.23
Sift	Benign	0.18	T
Sift4G	Benign	0.24	T
Polyphen		0.12	B
Vest4		0.30
MutPred		0.22		Loss of methylation at R8 (P = 0.0318);
MVP		0.45
MPC		3.1
ClinPred		0.15	T
GERP RS		0.88
RBP_binding_hub_radar		1.1
RBP_regulation_power_radar		3.5
Varity_R		0.082
gMVP		0.20

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-2160231;