rs104893806

Variant names:

• chr3-181712498-T-A
• rs104893806
• NM_003106.4:c.138T>A

Your query was ambiguous. Multiple possible variants found:

• chr3-181712498-T-A
• chr3-181712498-T-G

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PS1 PM1 PM2 PP3_Strong

The NM_003106.4(SOX2):​c.138T>A​(p.Asn46Lys) 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 pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Pathogenic in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N46S) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SOX2 NM_003106.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.09
• Publications: 0 publications found

Genes affected

SOX2 (HGNC:11195): (SRY-box transcription factor 2) This intronless gene encodes a member of the SRY-related HMG-box (SOX) family of transcription factors involved in the regulation of embryonic development and in the determination of cell fate. The product of this gene is required for stem-cell maintenance in the central nervous system, and also regulates gene expression in the stomach. Mutations in this gene have been associated with optic nerve hypoplasia and with syndromic microphthalmia, a severe form of structural eye malformation. This gene lies within an intron of another gene called SOX2 overlapping transcript (SOX2OT). [provided by RefSeq, Jul 2008]

SOX2-OT (HGNC:20209): (SOX2 overlapping transcript) This gene produces alternatively spliced long non-coding RNAs. These RNAs were observed to be upregulated in tumor cells and positively correlated to expression of the SRY-box 2 gene. Overexpression of these transcripts may promote cell proliferation. [provided by RefSeq, Dec 2017]

ACMG classification

Our verdict: Pathogenic. The variant received 12 ACMG points.

• PS1: Transcript NM_003106.4 (SOX2) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in ClinVar.
• PM1: In a hotspot region, there are 8 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_003106.4
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.965

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SOX2	NM_003106.4	c.138T>A	p.Asn46Lys	missense_variant	Exon 1 of 1	ENST00000325404.3	NP_003097.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SOX2	ENST00000325404.3	c.138T>A	p.Asn46Lys	missense_variant	Exon 1 of 1	6	NM_003106.4	ENSP00000323588.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.23	D
BayesDel_noAF	Uncertain	0.090
CADD	Uncertain	23
DANN	Benign	0.97
DEOGEN2	Pathogenic	1.0	D
Eigen	Benign	0.18
Eigen_PC	Benign	-0.021
FATHMM_MKL	Uncertain	0.82	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Pathogenic	0.75	D
MetaRNN	Pathogenic	0.97	D
MetaSVM	Pathogenic	0.91	D
MutationAssessor	Pathogenic	4.5	H
PhyloP100		2.1
PrimateAI	Pathogenic	0.94	D
PROVEAN	Pathogenic	-5.4	D
REVEL	Pathogenic	0.76
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.96
MutPred		0.76		Gain of methylation at N46 (P = 0.0118);
MVP		0.99
MPC		2.6
ClinPred		1.0	D
GERP RS		1.7
Varity_R		0.95
gMVP		0.99
Mutation Taster		=1/99	disease causing

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

Other links and lift over

dbSNP: rs104893806; hg19: chr3-181430286;