chr1-244835677-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_198076.6(COX20):​c.-38C>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000526 in 1,234,942 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

COX20
NM_198076.6 5_prime_UTR

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.28
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant 1-244835677-C-T is Benign according to our data. Variant chr1-244835677-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 389196.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COX20NM_198076.6 linkuse as main transcriptc.-38C>T 5_prime_UTR_variant 1/4 ENST00000411948.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COX20ENST00000411948.7 linkuse as main transcriptc.-38C>T 5_prime_UTR_variant 1/41 NM_198076.6 P1Q5RI15-1
COX20ENST00000391839.6 linkuse as main transcriptn.22C>T non_coding_transcript_exon_variant 1/31
COX20ENST00000366528.3 linkuse as main transcriptc.-38C>T 5_prime_UTR_variant 1/52 Q5RI15-2
COX20ENST00000498262.1 linkuse as main transcriptn.19C>T non_coding_transcript_exon_variant 1/42

Frequencies

GnomAD3 genomes
AF:
0.0000658
AC:
10
AN:
151864
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00260
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:
0.0000508
AC:
55
AN:
1083078
Hom.:
0
Cov.:
31
AF XY:
0.0000604
AC XY:
31
AN XY:
512882
show subpopulations
Gnomad4 AFR exome
AF:
0.0000438
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00154
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000181
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000196
Gnomad4 OTH exome
AF:
0.000229
GnomAD4 genome
AF:
0.0000658
AC:
10
AN:
151864
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74178
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00260
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:
0.000117

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxJan 15, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.77
CADD
Benign
6.6
DANN
Benign
0.85
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs1040009879; hg19: chr1-244998979; API