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GeneBe

2-190205175-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_014362.4(HIBCH):c.1103C>T(p.Thr368Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000199 in 1,611,328 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

HIBCH
NM_014362.4 missense

Scores

4
12
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.55
Variant links:
Genes affected
HIBCH (HGNC:4908): (3-hydroxyisobutyryl-CoA hydrolase) This gene encodes the enzyme responsible for hydrolysis of both HIBYL-CoA and beta-hydroxypropionyl-CoA. Mutations in this gene have been associated with 3-hyroxyisobutyryl-CoA hydrolase deficiency. Alternative splicing results in multiple transcript variants.[provided by RefSeq, May 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HIBCHNM_014362.4 linkuse as main transcriptc.1103C>T p.Thr368Ile missense_variant 14/14 ENST00000359678.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HIBCHENST00000359678.10 linkuse as main transcriptc.1103C>T p.Thr368Ile missense_variant 14/141 NM_014362.4 P1Q6NVY1-1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152052
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00000403
AC:
1
AN:
248314
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
134444
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.00000902
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000206
AC:
30
AN:
1459276
Hom.:
0
Cov.:
28
AF XY:
0.0000165
AC XY:
12
AN XY:
726172
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:
0.0000261
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152052
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74284
show subpopulations
Gnomad4 AFR
AF:
0.00
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
Bravo
AF:
0.00000756
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

Beta-hydroxyisobutyryl-CoA deacylase deficiency Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeAug 22, 2022This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 368 of the HIBCH protein (p.Thr368Ile). This variant is present in population databases (rs142607404, gnomAD 0.0009%). 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt HIBCH protein function. This variant has not been reported in the literature in individuals affected with HIBCH-related conditions. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.38
BayesDel_addAF
Uncertain
0.16
D
BayesDel_noAF
Uncertain
-0.010
Cadd
Pathogenic
27
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.72
D;D
Eigen
Pathogenic
0.84
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.86
D;T
M_CAP
Benign
0.024
T
MetaRNN
Uncertain
0.52
D;D
MetaSVM
Uncertain
-0.11
T
MutationAssessor
Pathogenic
3.5
M;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.60
T
PROVEAN
Pathogenic
-4.9
D;D
REVEL
Uncertain
0.33
Sift
Uncertain
0.0030
D;D
Sift4G
Uncertain
0.014
D;D
Polyphen
0.99
D;.
Vest4
0.24
MVP
0.88
MPC
0.25
ClinPred
0.99
D
GERP RS
5.3
Varity_R
0.86
gMVP
0.39

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: rs142607404; hg19: chr2-191069901; API