rs112793292

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PP3_ModeratePP5

The NM_005138.3(SCO2):​c.763C>T​(p.Arg255Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,744 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 Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. R255R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

SCO2
NM_005138.3 missense

Scores

3
7
9

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:2

Conservation

PhyloP100: 0.606
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM1
In a domain Thioredoxin (size 174) in uniprot entity SCO2_HUMAN there are 4 pathogenic changes around while only 1 benign (80%) in NM_005138.3
PP3
MetaRNN computational evidence supports a deleterious effect, 0.855
PP5
Variant 22-50523649-G-A is Pathogenic according to our data. Variant chr22-50523649-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 2413131.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=1, Uncertain_significance=2}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SCO2NM_005138.3 linkc.763C>T p.Arg255Trp missense_variant Exon 2 of 2 ENST00000395693.8 NP_005129.2 O43819
NCAPH2NM_152299.4 linkc.*274G>A 3_prime_UTR_variant Exon 20 of 20 ENST00000420993.7 NP_689512.2 Q6IBW4-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SCO2ENST00000395693.8 linkc.763C>T p.Arg255Trp missense_variant Exon 2 of 2 1 NM_005138.3 ENSP00000379046.4 O43819
NCAPH2ENST00000420993.7 linkc.*274G>A 3_prime_UTR_variant Exon 20 of 20 1 NM_152299.4 ENSP00000410088.2 Q6IBW4-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152210
Hom.:
0
Cov.:
34
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251258
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135862
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
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:
0.00000411
AC:
6
AN:
1461534
Hom.:
0
Cov.:
35
AF XY:
0.00000688
AC XY:
5
AN XY:
727074
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152210
Hom.:
0
Cov.:
34
AF XY:
0.0000134
AC XY:
1
AN XY:
74350
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Myopia 6;C5399977:Cardioencephalomyopathy, fatal infantile, due to cytochrome c oxidase deficiency 1 Pathogenic:1
Jan 26, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Uncertain:1
May 26, 2022
Revvity Omics, Revvity
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cardioencephalomyopathy, fatal infantile, due to cytochrome c oxidase deficiency 1 Uncertain:1
Jan 31, 2023
Laboratory of Inherited Metabolic Diseases, Research centre for medical genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.030
T
BayesDel_noAF
Benign
-0.11
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.90
D;D;D;D
Eigen
Benign
0.013
Eigen_PC
Benign
-0.26
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.82
.;T;.;.
M_CAP
Uncertain
0.24
D
MetaRNN
Pathogenic
0.86
D;D;D;D
MetaSVM
Uncertain
0.47
D
MutationAssessor
Pathogenic
3.6
H;H;H;H
PrimateAI
Benign
0.34
T
PROVEAN
Uncertain
-3.0
D;D;D;D
REVEL
Uncertain
0.44
Sift
Benign
0.12
T;T;T;T
Sift4G
Uncertain
0.022
D;D;D;D
Polyphen
1.0
D;D;D;D
Vest4
0.63
MutPred
0.56
Loss of disorder (P = 0.0045);Loss of disorder (P = 0.0045);Loss of disorder (P = 0.0045);Loss of disorder (P = 0.0045);
MVP
0.90
MPC
0.22
ClinPred
0.94
D
GERP RS
1.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.091
gMVP
0.70

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: rs112793292; hg19: chr22-50962078; COSMIC: COSV52688772; COSMIC: COSV52688772; API