chr17-54968546-G-C

Position:

• chr17-54968546-G-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_004375.5(COX11):​c.101C>G​(p.Pro34Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 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)
• Consequence: COX11 NM_004375.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0160

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 Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.06430131).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
COX11	NM_004375.5	c.101C>G	p.Pro34Arg	missense_variant	1/4	ENST00000299335.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COX11	ENST00000299335.8	c.101C>G	p.Pro34Arg	missense_variant	1/4	1	NM_004375.5	P1
COX11	ENST00000576370.5	c.101C>G	p.Pro34Arg	missense_variant, NMD_transcript_variant	1/5	1
COX11	ENST00000571584.1	c.101C>G	p.Pro34Arg	missense_variant	1/3	2
COX11	ENST00000572558.5	c.101C>G	p.Pro34Arg	missense_variant, NMD_transcript_variant	1/5	3

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 30

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

Nov 09, 2023

The c.101C>G (p.P34R) alteration is located in exon 1 (coding exon 1) of the COX11 gene. This alteration results from a C to G substitution at nucleotide position 101, causing the proline (P) at amino acid position 34 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	0.065
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.58
CADD	Benign	7.7
DANN	Benign	0.90
DEOGEN2	Benign	0.20	T;.;.
Eigen	Benign	-0.99
Eigen_PC	Benign	-1.0
FATHMM_MKL	Benign	0.038	N
LIST_S2	Benign	0.41	T;T;T
M_CAP	Benign	0.018	T
MetaRNN	Benign	0.064	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.55	N;N;.
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-0.24	N;.;.
REVEL	Benign	0.034
Sift	Benign	0.097	T;.;.
Sift4G	Uncertain	0.032	D;.;D
Polyphen		0.0	B;.;B
Vest4		0.14
MutPred		0.43		Gain of MoRF binding (P = 0.0018);Gain of MoRF binding (P = 0.0018);Gain of MoRF binding (P = 0.0018);
MVP		0.40
MPC		0.70
ClinPred		0.065	T
GERP RS		-0.83
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.035
gMVP		0.36

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-53045907;