chr17-54968634-A-T

Position:

• chr17-54968634-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004375.5(COX11):​c.13T>A​(p.Trp5Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,460,348 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: COX11 NM_004375.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.27

Genes affected

COX11 (HGNC:2261): (cytochrome c oxidase copper chaperone COX11) Cytochrome c oxidase (COX), the terminal component of the mitochondrial respiratory chain, catalyzes the electron transfer from reduced cytochrome c to oxygen. This component is a heteromeric complex consisting of 3 catalytic subunits encoded by mitochondrial genes and multiple structural subunits encoded by nuclear genes. The mitochondrially-encoded subunits function in electron transfer, and the nuclear-encoded subunits may function in the regulation and assembly of the complex. This nuclear gene encodes a protein which is not a structural subunit, but may be a heme A biosynthetic enzyme involved in COX formation, according to the yeast mutant studies. However, the studies in Rhodobacter sphaeroides suggest that this gene is not required for heme A biosynthesis, but required for stable formation of the Cu(B) and magnesium centers of COX. This human protein is predicted to contain a transmembrane domain localized in the mitochondrial inner membrane. Multiple transcript variants encoding different isoforms have been found for this gene. A related pseudogene has been found on chromosome 6. [provided by RefSeq, Jun 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.18460205).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
COX11	NM_004375.5	c.13T>A	p.Trp5Arg	missense_variant	1/4	ENST00000299335.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COX11	ENST00000299335.8	c.13T>A	p.Trp5Arg	missense_variant	1/4	1	NM_004375.5	P1
COX11	ENST00000576370.5	c.13T>A	p.Trp5Arg	missense_variant, NMD_transcript_variant	1/5	1
COX11	ENST00000571584.1	c.13T>A	p.Trp5Arg	missense_variant	1/3	2
COX11	ENST00000572558.5	c.13T>A	p.Trp5Arg	missense_variant, NMD_transcript_variant	1/5	3

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD3 exomes AF: 0.00000407 AC: 1 AN: 245582 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 133904

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000329

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1460348 Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2 AN XY: 726522

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000497

GnomAD4 genome Cov.: 30

Bravo AF: 0.00000378

Asia WGS AF: 0.000577 AC: 2 AN: 3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 24, 2022

The c.13T>A (p.W5R) alteration is located in exon 1 (coding exon 1) of the COX11 gene. This alteration results from a T to A substitution at nucleotide position 13, causing the tryptophan (W) at amino acid position 5 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.34
CADD	Benign	21
DANN	Benign	0.97
DEOGEN2	Benign	0.25	T;.;.
Eigen	Benign	-0.55
Eigen_PC	Benign	-0.53
FATHMM_MKL	Benign	0.069	N
LIST_S2	Benign	0.43	T;T;T
M_CAP	Benign	0.042	D
MetaRNN	Benign	0.18	T;T;T
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	1.0	L;L;.
MutationTaster	Benign	1.0	N;N
PrimateAI	Uncertain	0.58	T
PROVEAN	Benign	-0.75	N;.;.
REVEL	Benign	0.085
Sift	Pathogenic	0.0	D;.;.
Sift4G	Pathogenic	0.0	D;.;D
Polyphen		0.0	B;.;B
Vest4		0.38
MutPred		0.62		Gain of disorder (P = 0.0086);Gain of disorder (P = 0.0086);Gain of disorder (P = 0.0086);
MVP		0.56
MPC		1.2
ClinPred		0.50	T
GERP RS		2.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0
Varity_R		0.40
gMVP		0.36

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs1220325194; hg19: chr17-53045995;