Genetic Variant CHCHD5:p.Gln94His (chr2-112586338-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_032309.4(CHCHD5):c.282G>C(p.Gln94His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000167 in 1,614,234 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00017 ( 1 hom. )

Consequence

CHCHD5
NM_032309.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.155

Variant links:

Genes affected

CHCHD5 (HGNC:17840): (coiled-coil-helix-coiled-coil-helix domain containing 5) Predicted to be located in mitochondrial intermembrane space. [provided by Alliance of Genome Resources, Apr 2022]

CHCHD5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.016871303).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CHCHD5	NM_032309.4 link	c.282G>C	p.Gln94His	missense_variant	Exon 3 of 4	ENST00000324913.10	NP_115685.1	Q9BSY4-1A0A2U9EWT9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CHCHD5	ENST00000324913.10 link	c.282G>C	p.Gln94His	missense_variant	Exon 3 of 4	1	NM_032309.4	ENSP00000325655.5		Q9BSY4-1

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152244

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00186

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.000235

AC:

AN:

251032

Hom.:

AF XY:

0.000265

AC XY:

AN XY:

135756

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00124

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000132

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000172

AC:

251

AN:

1461872

Hom.:

Cov.:

AF XY:

0.000223

AC XY:

162

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00176

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000701

Gnomad4 OTH exome

AF:

0.000215

GnomAD4 genome

AF:

0.000125

AC:

AN:

152362

Hom.:

Cov.:

AF XY:

0.000174

AC XY:

AN XY:

74514

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00186

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.0000823

Hom.:

Bravo

AF:

0.000121

ExAC

AF:

0.000264

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000356

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 01, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.282G>C (p.Q94H) alteration is located in exon 3 (coding exon 3) of the CHCHD5 gene. This alteration results from a G to C substitution at nucleotide position 282, causing the glutamine (Q) at amino acid position 94 to be replaced by a histidine (H). 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

Benign

0.13

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.54

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.034

T;.

Eigen

Benign

-0.61

Eigen_PC

Benign

-0.83

FATHMM_MKL

Benign

0.45

LIST_S2

Benign

0.72

T;T

M_CAP

Benign

0.0035

MetaRNN

Benign

0.017

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.3

M;M

PrimateAI

Benign

0.41

PROVEAN

Benign

-2.2

N;N

REVEL

Benign

0.12

Sift

Benign

0.087

T;D

Polyphen

0.99

D;.

Vest4

0.49

MutPred

0.098

Loss of glycosylation at P96 (P = 0.161);Loss of glycosylation at P96 (P = 0.161);

MVP

0.15

MPC

0.045

ClinPred

0.057

GERP RS

-1.6

Varity_R

0.067

gMVP

0.44

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over