rs104893808

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BS1_SupportingBS2

The NM_003106.4(SOX2):​c.571G>A​(p.Ala191Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000135 in 1,613,642 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. A191A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

SOX2
NM_003106.4 missense

Scores

7
11

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:1U:5

Conservation

PhyloP100: 3.00

Publications

6 publications found
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-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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000138 (21/152258) while in subpopulation NFE AF = 0.000265 (18/68042). AF 95% confidence interval is 0.000171. There are 0 homozygotes in GnomAd4. There are 11 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High AC in GnomAd4 at 21 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003106.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SOX2
NM_003106.4
MANE Select
c.571G>Ap.Ala191Thr
missense
Exon 1 of 1NP_003097.1P48431
SOX2-OT
NR_004053.3
n.768-2254G>A
intron
N/A
SOX2-OT
NR_075089.1
n.767+13048G>A
intron
N/A

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SOX2
ENST00000325404.3
TSL:6 MANE Select
c.571G>Ap.Ala191Thr
missense
Exon 1 of 1ENSP00000323588.1P48431
SOX2-OT
ENST00000466034.7
TSL:1
n.349+13048G>A
intron
N/A
SOX2-OT
ENST00000476964.6
TSL:1
n.482-26638G>A
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
152258
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000723
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:
0.000265
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000774
AC:
19
AN:
245476
AF XY:
0.0000750
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000174
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000135
AC:
197
AN:
1461384
Hom.:
0
Cov.:
33
AF XY:
0.000114
AC XY:
83
AN XY:
727002
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33476
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26124
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86252
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52992
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000165
AC:
184
AN:
1111970
Other (OTH)
AF:
0.000199
AC:
12
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
13
25
38
50
63
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000138
AC:
21
AN:
152258
Hom.:
0
Cov.:
32
AF XY:
0.000148
AC XY:
11
AN XY:
74388
show subpopulations
African (AFR)
AF:
0.0000723
AC:
3
AN:
41476
American (AMR)
AF:
0.00
AC:
0
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000265
AC:
18
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000121
Hom.:
0
Bravo
AF:
0.000136
ExAC
AF:
0.0000577
AC:
7
EpiCase
AF:
0.000109
EpiControl
AF:
0.000178

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Anophthalmia/microphthalmia-esophageal atresia syndrome (2)
-
1
-
Inborn genetic diseases (1)
-
1
-
not provided (1)
-
1
-
not specified (1)
1
-
-
Optic nerve hypoplasia and abnormalities of the central nervous system (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Benign
-0.067
T
BayesDel_noAF
Uncertain
-0.060
CADD
Benign
18
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.46
T
Eigen
Benign
-0.16
Eigen_PC
Benign
0.048
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Benign
0.86
D
M_CAP
Benign
0.043
D
MetaRNN
Uncertain
0.57
D
MetaSVM
Benign
-0.33
T
MutationAssessor
Benign
0.20
N
PhyloP100
3.0
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-0.53
N
REVEL
Uncertain
0.37
Sift
Benign
0.21
T
Sift4G
Benign
0.23
T
Polyphen
0.0060
B
Vest4
0.69
MVP
0.95
MPC
1.2
ClinPred
0.11
T
GERP RS
5.2
Varity_R
0.15
gMVP
0.84
Mutation Taster
=28/72
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

Publications

Other links and lift over

dbSNP: rs104893808; hg19: chr3-181430719; API