22-50524305-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PVS1_StrongPM2PP5

The NM_005138.3(SCO2):​c.107G>A​(p.Trp36Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,450,296 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 Pathogenic (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SCO2
NM_005138.3 stop_gained

Scores

1
1
5

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: -0.478
Variant links:
Genes affected
SCO2 (HGNC:10604): (synthesis of cytochrome C oxidase 2) Cytochrome c oxidase (COX) catalyzes the transfer of electrons from cytochrome c to molecular oxygen, which helps to maintain the proton gradient across the inner mitochondrial membrane that is necessary for aerobic ATP production. Human COX is a multimeric protein complex that requires several assembly factors; this gene encodes one of the COX assembly factors. The encoded protein is a metallochaperone that is involved in the biogenesis of cytochrome c oxidase subunit II. Mutations in this gene are associated with fatal infantile encephalocardiomyopathy and myopia 6. [provided by RefSeq, Oct 2014]
NCAPH2 (HGNC:25071): (non-SMC condensin II complex subunit H2) This gene encodes one of the non-SMC subunits of the condensin II complex. This complex plays an essential role in mitotic chromosome assembly. Alternate splicing of this gene results in multiple transcript variants.[provided by RefSeq, May 2010]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 4 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 22-50524305-C-T is Pathogenic according to our data. Variant chr22-50524305-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 5685.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SCO2NM_005138.3 linkuse as main transcriptc.107G>A p.Trp36Ter stop_gained 2/2 ENST00000395693.8 NP_005129.2
NCAPH2NM_152299.4 linkuse as main transcriptc.*930C>T 3_prime_UTR_variant 20/20 ENST00000420993.7 NP_689512.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SCO2ENST00000395693.8 linkuse as main transcriptc.107G>A p.Trp36Ter stop_gained 2/21 NM_005138.3 ENSP00000379046 P1
NCAPH2ENST00000420993.7 linkuse as main transcriptc.*930C>T 3_prime_UTR_variant 20/201 NM_152299.4 ENSP00000410088 P4Q6IBW4-1
ENST00000608319.1 linkuse as main transcriptn.380C>T non_coding_transcript_exon_variant 1/1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000138
AC:
2
AN:
1450296
Hom.:
0
Cov.:
73
AF XY:
0.00000277
AC XY:
2
AN XY:
722008
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:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

Cardioencephalomyopathy, fatal infantile, due to cytochrome c oxidase deficiency 1 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMNov 01, 2008- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.59
D
BayesDel_noAF
Uncertain
-0.030
CADD
Pathogenic
33
DANN
Benign
0.96
Eigen
Benign
0.0079
Eigen_PC
Benign
-0.42
FATHMM_MKL
Benign
0.36
N
MutationTaster
Benign
1.0
A;A;A;A
Vest4
0.80
GERP RS
-0.97

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: rs121908508; hg19: chr22-50962734; API