rs1022847823

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_198076.6(COX20):​c.109G>A​(p.Gly37Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000869 in 1,611,798 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 Uncertain significance (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

COX20
NM_198076.6 missense

Scores

10
6
3

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 7.99
Variant links:
Genes affected
COX20 (HGNC:26970): (cytochrome c oxidase assembly factor COX20) This gene encodes a protein that plays a role in the assembly of cytochrome C oxidase, an important component of the respiratory pathway. It contains two transmembrane helices and localizes to the mitochondrial membrane. Mutations in this gene can cause mitochondrial complex IV deficiency, which results in ataxia and muscle hypotonia. There are multiple pseudogenes for this gene. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2015]
HNRNPU (HGNC:5048): (heterogeneous nuclear ribonucleoprotein U) This gene encodes a member of a family of proteins that bind nucleic acids and function in the formation of ribonucleoprotein complexes in the nucleus with heterogeneous nuclear RNA (hnRNA). The encoded protein has affinity for both RNA and DNA, and binds scaffold-attached region (SAR) DNA. Mutations in this gene have been associated with epileptic encephalopathy, early infantile, 54. A pseudogene of this gene has been identified on chromosome 14. [provided by RefSeq, Jun 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.972

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COX20NM_198076.6 linkuse as main transcriptc.109G>A p.Gly37Ser missense_variant 2/4 ENST00000411948.7 NP_932342.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COX20ENST00000411948.7 linkuse as main transcriptc.109G>A p.Gly37Ser missense_variant 2/41 NM_198076.6 ENSP00000406327 P1Q5RI15-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151982
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000891
AC:
13
AN:
1459816
Hom.:
0
Cov.:
28
AF XY:
0.00000551
AC XY:
4
AN XY:
726324
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:
0.0000117
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151982
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74230
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, no assertion criteria providedresearchGharavi Laboratory, Columbia UniversitySep 16, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.54
BayesDel_addAF
Pathogenic
0.48
D
BayesDel_noAF
Pathogenic
0.46
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.52
D;.
Eigen
Pathogenic
0.96
Eigen_PC
Pathogenic
0.91
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.78
T;T
M_CAP
Benign
0.031
D
MetaRNN
Pathogenic
0.97
D;D
MetaSVM
Uncertain
0.26
D
MutationAssessor
Uncertain
2.9
M;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.52
T
PROVEAN
Pathogenic
-6.0
D;D
REVEL
Pathogenic
0.79
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.96
MutPred
0.88
Loss of sheet (P = 0.0315);.;
MVP
0.27
MPC
0.24
ClinPred
1.0
D
GERP RS
5.8
Varity_R
0.92
gMVP
0.79

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
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: rs1022847823; hg19: chr1-245005312; API