6-137493570-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_ModerateBS2

The NM_175747.2(OLIG3):​c.601G>A​(p.Ala201Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000348 in 1,436,300 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000035 ( 0 hom. )

Consequence

OLIG3
NM_175747.2 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.255
Variant links:
Genes affected
OLIG3 (HGNC:18003): (oligodendrocyte transcription factor 3) Enables sequence-specific double-stranded DNA binding activity. Predicted to be involved in neuron differentiation and regulation of transcription by RNA polymerase II. Predicted to act upstream of or within negative regulation of transcription by RNA polymerase II; spinal cord motor neuron cell fate specification; and spinal cord motor neuron migration. Predicted to be part of chromatin. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.10044345).
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
OLIG3NM_175747.2 linkc.601G>A p.Ala201Thr missense_variant 1/1 ENST00000367734.4 NP_786923.1 Q7RTU3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
OLIG3ENST00000367734.4 linkc.601G>A p.Ala201Thr missense_variant 1/16 NM_175747.2 ENSP00000356708.2 Q7RTU3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000996
AC:
2
AN:
200766
Hom.:
0
AF XY:
0.0000183
AC XY:
2
AN XY:
109230
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000330
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000195
GnomAD4 exome
AF:
0.00000348
AC:
5
AN:
1436300
Hom.:
0
Cov.:
32
AF XY:
0.00000561
AC XY:
4
AN XY:
712788
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000121
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.:
32
Bravo
AF:
0.0000189

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 30, 2024The c.601G>A (p.A201T) alteration is located in exon 1 (coding exon 1) of the OLIG3 gene. This alteration results from a G to A substitution at nucleotide position 601, causing the alanine (A) at amino acid position 201 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.089
T
Eigen
Benign
-0.41
Eigen_PC
Benign
-0.21
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.64
T
M_CAP
Benign
0.032
D
MetaRNN
Benign
0.10
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.0
N
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-0.69
N
REVEL
Benign
0.064
Sift
Benign
0.15
T
Sift4G
Benign
0.58
T
Polyphen
0.29
B
Vest4
0.094
MutPred
0.17
Gain of glycosylation at A201 (P = 0.0023);
MVP
0.29
MPC
0.78
ClinPred
0.20
T
GERP RS
4.3
Varity_R
0.074
gMVP
0.58

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.

Other links and lift over

dbSNP: rs200172504; hg19: chr6-137814707; API