Genetic Variant SOX2:p.Pro12Pro (chr3-181712396-G-C) – ACMG Classification: Benign (-7 pts)

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP7BS2

The NM_003106.4(SOX2):c.36G>C(p.Pro12Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000761 in 1,577,012 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000056 ( 0 hom. )

Consequence

SOX2
NM_003106.4 synonymous

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.202

Variant links:

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 links:

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]

SOX2-OT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.39).

BP7

Synonymous conserved (PhyloP=0.202 with no splicing effect.

BS2

High AC in GnomAdExome4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SOX2	NM_003106.4 link	c.36G>C	p.Pro12Pro	synonymous_variant	Exon 1 of 1	ENST00000325404.3	NP_003097.1	P48431A0A0U3FYV6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SOX2	ENST00000325404.3 link	c.36G>C	p.Pro12Pro	synonymous_variant	Exon 1 of 1	6	NM_003106.4	ENSP00000323588.1		P48431

Frequencies

GnomAD3 genomes

AF:

0.0000264

AC:

AN:

151246

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000972

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

188832

Hom.:

AF XY:

0.0000193

AC XY:

AN XY:

103642

show subpopulations

Gnomad AFR exome

AF:

0.000208

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000369

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000561

AC:

AN:

1425766

Hom.:

Cov.:

AF XY:

0.00000849

AC XY:

AN XY:

706384

show subpopulations

Gnomad4 AFR exome

AF:

0.0000619

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000799

Gnomad4 SAS exome

AF:

0.0000120

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.14e-7

Gnomad4 OTH exome

AF:

0.0000170

GnomAD4 genome

AF:

0.0000264

AC:

AN:

151246

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

73864

show subpopulations

Gnomad4 AFR

AF:

0.0000972

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000264

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Anophthalmia/microphthalmia-esophageal atresia syndrome

Uncertain:1

Jul 11, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change affects codon 12 of the SOX2 mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid sequence of the SOX2 protein. This variant is present in population databases (rs775583460, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with SOX2-related conditions. Experimental studies and prediction algorithms are not available or were not evaluated, and the effect of this variant on mRNA splicing is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.39

CADD

Benign

DANN

Benign

0.93

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over