2-206755324-T-C
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Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_001039845.3(MDH1B):āc.595A>Gā(p.Thr199Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,862 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 (ā ).
Frequency
Genomes: not found (cov: 32)
Exomes š: 0.0000021 ( 0 hom. )
Consequence
MDH1B
NM_001039845.3 missense
NM_001039845.3 missense
Scores
2
5
12
Clinical Significance
Conservation
PhyloP100: 5.33
Genes affected
MDH1B (HGNC:17836): (malate dehydrogenase 1B) Predicted to enable L-malate dehydrogenase activity. Predicted to be involved in NADH metabolic process; dicarboxylic acid metabolic process; and tricarboxylic acid cycle. [provided by Alliance of Genome Resources, Apr 2022]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 1 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3842959).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
MDH1B | NM_001039845.3 | c.595A>G | p.Thr199Ala | missense_variant | 5/12 | ENST00000374412.8 | NP_001034934.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
MDH1B | ENST00000374412.8 | c.595A>G | p.Thr199Ala | missense_variant | 5/12 | 1 | NM_001039845.3 | ENSP00000363533 | P4 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 genomes
Cov.:
32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251244Hom.: 0 AF XY: 0.00000737 AC XY: 1AN XY: 135774
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GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461862Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 727242
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GnomAD4 genome Cov.: 32
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32
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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 submitter | clinical testing | Ambry Genetics | Feb 22, 2023 | The c.595A>G (p.T199A) alteration is located in exon 5 (coding exon 5) of the MDH1B gene. This alteration results from a A to G substitution at nucleotide position 595, causing the threonine (T) at amino acid position 199 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Benign
T;.;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Benign
T;T;T
M_CAP
Benign
D
MetaRNN
Benign
T;T;T
MetaSVM
Benign
T
MutationAssessor
Pathogenic
M;.;M
MutationTaster
Benign
D;D;D;D
PrimateAI
Benign
T
PROVEAN
Uncertain
D;N;D
REVEL
Benign
Sift
Benign
D;D;T
Sift4G
Uncertain
D;D;D
Polyphen
P;.;P
Vest4
MutPred
Gain of ubiquitination at K200 (P = 0.135);.;Gain of ubiquitination at K200 (P = 0.135);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at