chr7-27649573-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_152740.4(HIBADH):​c.152G>A​(p.Gly51Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000341 in 1,613,678 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

HIBADH
NM_152740.4 missense

Scores

16
2
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.57
Variant links:
Genes affected
HIBADH (HGNC:4907): (3-hydroxyisobutyrate dehydrogenase) This gene encodes a mitochondrial 3-hydroxyisobutyrate dehydrogenase enzyme. The encoded protein plays a critical role in the catabolism of L-valine by catalyzing the oxidation of 3-hydroxyisobutyrate to methylmalonate semialdehyde. [provided by RefSeq, Nov 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.97

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HIBADHNM_152740.4 linkuse as main transcriptc.152G>A p.Gly51Glu missense_variant 2/8 ENST00000265395.7
LOC105375211XR_007060268.1 linkuse as main transcriptn.85+1643C>T intron_variant, non_coding_transcript_variant
LOC105375211XR_927139.3 linkuse as main transcriptn.85+1643C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HIBADHENST00000265395.7 linkuse as main transcriptc.152G>A p.Gly51Glu missense_variant 2/81 NM_152740.4 P1
HIBADHENST00000496814.1 linkuse as main transcriptn.221G>A non_coding_transcript_exon_variant 2/23
HIBADHENST00000428288.2 linkuse as main transcriptc.91+13125G>A intron_variant, NMD_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152082
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251358
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135856
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000356
AC:
52
AN:
1461596
Hom.:
0
Cov.:
30
AF XY:
0.0000316
AC XY:
23
AN XY:
727104
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
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:
0.0000441
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152082
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74284
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000127
Hom.:
0
Bravo
AF:
0.0000302
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

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 GeneticsMar 31, 2024The c.152G>A (p.G51E) alteration is located in exon 2 (coding exon 2) of the HIBADH gene. This alteration results from a G to A substitution at nucleotide position 152, causing the glycine (G) at amino acid position 51 to be replaced by a glutamic acid (E). 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
1.0
BayesDel_addAF
Pathogenic
0.38
D
BayesDel_noAF
Pathogenic
0.42
CADD
Pathogenic
30
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.81
D
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
1.0
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
1.0
D
M_CAP
Pathogenic
0.43
D
MetaRNN
Pathogenic
0.97
D
MetaSVM
Pathogenic
0.95
D
MutationAssessor
Pathogenic
4.2
H
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.87
D
PROVEAN
Pathogenic
-6.4
D
REVEL
Pathogenic
0.89
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.037
D
Polyphen
1.0
D
Vest4
0.99
MVP
0.98
MPC
0.35
ClinPred
1.0
D
GERP RS
6.0
Varity_R
0.96
gMVP
0.98

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs1344801559; hg19: chr7-27689192; API