2-42656301-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001330442.2(MTA3):​c.601C>T​(p.Arg201Cys) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000275 in 1,452,000 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 15/23 in silico tools predict a damaging outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

MTA3
NM_001330442.2 missense, splice_region

Scores

15
4
Splicing: ADA: 0.9936
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.68
Variant links:
Genes affected
MTA3 (HGNC:23784): (metastasis associated 1 family member 3) Predicted to enable histone deacetylase binding activity; transcription coactivator activity; and transcription corepressor activity. Involved in negative regulation of transcription, DNA-templated. Located in nucleoplasm. Part of NuRD complex. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.916

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MTA3NM_001330442.2 linkuse as main transcriptc.601C>T p.Arg201Cys missense_variant, splice_region_variant 7/17 ENST00000405094.2 NP_001317371.1 Q9BTC8-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MTA3ENST00000405094.2 linkuse as main transcriptc.601C>T p.Arg201Cys missense_variant, splice_region_variant 7/175 NM_001330442.2 ENSP00000385823.1 Q9BTC8-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000275
AC:
4
AN:
1452000
Hom.:
0
Cov.:
27
AF XY:
0.00000553
AC XY:
4
AN XY:
723072
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000272
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000617
Hom.:
0

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 GeneticsOct 24, 2024The c.601C>T (p.R201C) alteration is located in exon 7 (coding exon 7) of the MTA3 gene. This alteration results from a C to T substitution at nucleotide position 601, causing the arginine (R) at amino acid position 201 to be replaced by a cysteine (C). 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
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.20
CADD
Pathogenic
34
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.13
T;T;.;T;T
Eigen
Pathogenic
0.90
Eigen_PC
Pathogenic
0.84
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
1.0
.;D;D;D;D
M_CAP
Benign
0.074
D
MetaRNN
Pathogenic
0.92
D;D;D;D;D
MetaSVM
Benign
-0.46
T
MutationAssessor
Pathogenic
3.2
.;.;M;.;M
PrimateAI
Pathogenic
0.86
D
PROVEAN
Pathogenic
-7.3
D;D;D;D;D
REVEL
Pathogenic
0.66
Sift
Pathogenic
0.0
D;D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;D
Polyphen
1.0
D;D;D;D;.
Vest4
0.93
MVP
0.67
MPC
0.60
ClinPred
1.0
D
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.85
gMVP
0.83

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.99
dbscSNV1_RF
Pathogenic
0.88
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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-42883441; COSMIC: COSV68136231; COSMIC: COSV68136231; API