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GeneBe

15-74929172-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The NM_004255.4(COX5A):c.161C>G(p.Ala54Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000279 in 1,613,978 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

COX5A
NM_004255.4 missense

Scores

14
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.39
Variant links:
Genes affected
COX5A (HGNC:2267): (cytochrome c oxidase subunit 5A) Cytochrome c oxidase (COX) is the terminal enzyme of the mitochondrial respiratory chain. It is a multi-subunit enzyme complex that couples the transfer of electrons from cytochrome c to molecular oxygen and contributes to a proton electrochemical gradient across the inner mitochondrial membrane. The complex consists of 13 mitochondrial- and nuclear-encoded subunits. The mitochondrially-encoded subunits perform the electron transfer of proton pumping activities. The functions of the nuclear-encoded subunits are unknown but they may play a role in the regulation and assembly of the complex. This gene encodes the nuclear-encoded subunit Va of the human mitochondrial respiratory chain enzyme. A pseudogene COX5AP1 has been found in chromosome 14q22. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1
In a chain Cytochrome c oxidase subunit 5A, mitochondrial (size 108) in uniprot entity COX5A_HUMAN there are 4 pathogenic changes around while only 1 benign (80%) in NM_004255.4
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COX5ANM_004255.4 linkuse as main transcriptc.161C>G p.Ala54Gly missense_variant 2/5 ENST00000322347.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COX5AENST00000322347.11 linkuse as main transcriptc.161C>G p.Ala54Gly missense_variant 2/51 NM_004255.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000177
AC:
27
AN:
152154
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000627
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000318
AC:
8
AN:
251474
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135906
show subpopulations
Gnomad AFR exome
AF:
0.000492
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
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:
0.0000123
AC:
18
AN:
1461824
Hom.:
0
Cov.:
30
AF XY:
0.00000550
AC XY:
4
AN XY:
727222
show subpopulations
Gnomad4 AFR exome
AF:
0.000538
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.000177
AC:
27
AN:
152154
Hom.:
0
Cov.:
33
AF XY:
0.000175
AC XY:
13
AN XY:
74316
show subpopulations
Gnomad4 AFR
AF:
0.000627
Gnomad4 AMR
AF:
0.0000655
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:
0.000196
ESP6500AA
AF:
0.000455
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 08, 2022The c.161C>G (p.A54G) alteration is located in exon 2 (coding exon 2) of the COX5A gene. This alteration results from a C to G substitution at nucleotide position 161, causing the alanine (A) at amino acid position 54 to be replaced by a glycine (G). 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
0.19
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Uncertain
-0.070
Cadd
Pathogenic
30
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.70
D;D;T;D
Eigen
Uncertain
0.60
Eigen_PC
Uncertain
0.57
FATHMM_MKL
Uncertain
0.86
D
M_CAP
Benign
0.014
T
MetaRNN
Uncertain
0.43
T;T;T;T
MetaSVM
Uncertain
-0.053
T
MutationAssessor
Uncertain
2.8
M;.;.;M
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Uncertain
0.74
T
PROVEAN
Uncertain
-3.0
D;D;D;D
REVEL
Uncertain
0.32
Sift
Uncertain
0.014
D;D;D;D
Sift4G
Uncertain
0.039
D;D;D;D
Polyphen
0.95
P;.;.;P
Vest4
0.48
MVP
0.64
MPC
0.70
ClinPred
0.57
D
GERP RS
4.7
Varity_R
0.56
gMVP
0.48

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: rs138526218; hg19: chr15-75221513; API