2-26289945-C-A
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Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3
The NM_000183.3(HADHB):c.1417C>A(p.Pro473Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000131 in 152,140 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control
Consequence
HADHB
NM_000183.3 missense
NM_000183.3 missense
Scores
7
8
3
Clinical Significance
Conservation
PhyloP100: 5.46
Genes affected
HADHB (HGNC:4803): (hydroxyacyl-CoA dehydrogenase trifunctional multienzyme complex subunit beta) This gene encodes the beta subunit of the mitochondrial trifunctional protein, which catalyzes the last three steps of mitochondrial beta-oxidation of long chain fatty acids. The mitochondrial membrane-bound heterocomplex is composed of four alpha and four beta subunits, with the beta subunit catalyzing the 3-ketoacyl-CoA thiolase activity. The encoded protein can also bind RNA and decreases the stability of some mRNAs. The genes of the alpha and beta subunits of the mitochondrial trifunctional protein are located adjacent to each other in the human genome in a head-to-head orientation. Mutations in this gene result in trifunctional protein deficiency. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2013]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 3 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.747
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
HADHB | NM_000183.3 | c.1417C>A | p.Pro473Thr | missense_variant | 16/16 | ENST00000317799.10 | |
HADHB | NM_001281512.2 | c.1372C>A | p.Pro458Thr | missense_variant | 15/15 | ||
HADHB | NM_001281513.2 | c.1351C>A | p.Pro451Thr | missense_variant | 17/17 | ||
HADHB | XM_011532803.2 | c.1417C>A | p.Pro473Thr | missense_variant | 16/16 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
HADHB | ENST00000317799.10 | c.1417C>A | p.Pro473Thr | missense_variant | 16/16 | 1 | NM_000183.3 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152140Hom.: 0 Cov.: 32
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GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0AN: 1454962Hom.: 0 Cov.: 28 AF XY: 0.00 AC XY: 0AN XY: 724318
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GnomAD4 genome AF: 0.0000131 AC: 2AN: 152140Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74332
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Mitochondrial trifunctional protein deficiency Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jul 21, 2022 | 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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 468765). This variant has not been reported in the literature in individuals affected with HADHB-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.01%). This sequence change replaces proline, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 473 of the HADHB protein (p.Pro473Thr). - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Benign
T;D;T;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D;D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D;D
MetaSVM
Pathogenic
D
MutationTaster
Benign
D;D;D;D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D;D;D
REVEL
Pathogenic
Sift
Uncertain
D;D;D;D
Sift4G
Uncertain
D;D;D;D
Polyphen
D;D;B;.
Vest4
MutPred
0.39
.;Loss of sheet (P = 0.007);.;.;
MVP
MPC
0.64
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
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