1-2229014-C-G

Variant names:

• chr1-2229014-C-G
• rs1060502672
• NM_003036.4:c.248C>G
• SKI p.Pro83Arg

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_003036.4(SKI):​c.248C>G​(p.Pro83Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000139 in 1,434,498 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P83S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: SKI NM_003036.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.61
• Publications: 0 publications found

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: PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics, Orphanet, Genomics England PanelApp, ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.867

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.248C>G	p.Pro83Arg	missense	Exon 1 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.248C>G	p.Pro83Arg	missense	Exon 1 of 7	ENSP00000367797.4	P12755
	SKI	ENST00000851187.1		c.248C>G	p.Pro83Arg	missense	Exon 1 of 7	ENSP00000521247.1
	SKI	ENST00000704337.1		n.137+1490C>G		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000139 AC: 2 AN: 1434498 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 713090

African (AFR) AF: 0.00 AC: 0 AN: 32976

American (AMR) AF: 0.00 AC: 0 AN: 42828

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25868

East Asian (EAS) AF: 0.00 AC: 0 AN: 38554

South Asian (SAS) AF: 0.00 AC: 0 AN: 84322

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40140

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5390

European-Non Finnish (NFE) AF: 0.00000181 AC: 2 AN: 1104890

Other (OTH) AF: 0.00 AC: 0 AN: 59530

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.39
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.070
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.65	D
Eigen	Uncertain	0.50
Eigen_PC	Uncertain	0.41
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Benign	0.76	T
M_CAP	Pathogenic	0.86	D
MetaRNN	Pathogenic	0.87	D
MetaSVM	Uncertain	0.60	D
MutationAssessor	Uncertain	2.1	M
PhyloP100		5.6
PrimateAI	Pathogenic	0.92	D
PROVEAN	Uncertain	-3.9	D
REVEL	Pathogenic	0.78
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.0040	D
Varity_R		0.68
gMVP		0.86
Mutation Taster		=57/43	polymorphism

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs1060502672;

hg19: chr1-2160453;