rs750014782

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP5BS2

The NM_016139.4(CHCHD2):​c.300+5G>A variant causes a splice donor 5th base, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000822 in 1,459,368 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

CHCHD2
NM_016139.4 splice_donor_5th_base, intron

Scores

2
Splicing: ADA: 0.9998
2

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 0.0430
Variant links:
Genes affected
CHCHD2 (HGNC:21645): (coiled-coil-helix-coiled-coil-helix domain containing 2) The protein encoded by this gene belongs to a class of eukaryotic CX(9)C proteins characterized by four cysteine residues spaced ten amino acids apart from one another. These residues form disulfide linkages that define a CHCH fold. In response to stress, the protein translocates from the mitochondrial intermembrane space to the nucleus where it binds to a highly conserved 13 nucleotide oxygen responsive element in the promoter of cytochrome oxidase 4I2, a subunit of the terminal enzyme of the electron transport chain. In concert with recombination signal sequence-binding protein J, binding of this protein activates the oxygen responsive element at four percent oxygen. In addition, it has been shown that this protein is a negative regulator of mitochondria-mediated apoptosis. In response to apoptotic stimuli, mitochondrial levels of this protein decrease, allowing BCL2-associated X protein to oligomerize and activate the caspase cascade. Pseudogenes of this gene are found on multiple chromosomes. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP5
Variant 7-56104221-C-T is Pathogenic according to our data. Variant chr7-56104221-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 218884.Status of the report is no_assertion_criteria_provided, 0 stars.
BS2
High AC in GnomAdExome4 at 12 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CHCHD2NM_016139.4 linkuse as main transcriptc.300+5G>A splice_donor_5th_base_variant, intron_variant ENST00000395422.4
CHCHD2NM_001320327.2 linkuse as main transcriptc.300+5G>A splice_donor_5th_base_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CHCHD2ENST00000395422.4 linkuse as main transcriptc.300+5G>A splice_donor_5th_base_variant, intron_variant 1 NM_016139.4 P1
CHCHD2ENST00000473095.1 linkuse as main transcriptn.318+5G>A splice_donor_5th_base_variant, intron_variant, non_coding_transcript_variant 1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000200
AC:
5
AN:
249734
Hom.:
0
AF XY:
0.0000296
AC XY:
4
AN XY:
135162
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000272
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000822
AC:
12
AN:
1459368
Hom.:
0
Cov.:
32
AF XY:
0.0000124
AC XY:
9
AN XY:
725514
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000278
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.0000568
Hom.:
0
Bravo
AF:
0.00000378
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Parkinson disease 22, autosomal dominant Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMJul 01, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.72
CADD
Benign
17
DANN
Benign
0.82
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.90
SpliceAI score (max)
0.16
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: rs750014782; hg19: chr7-56171914; API