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chr7-43647634-A-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_018224.4(COA1):​c.16T>A​(p.Tyr6Asn) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000164 in 1,608,690 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

COA1
NM_018224.4 missense, splice_region

Scores

1
18
Splicing: ADA: 0.00001651
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.248
Variant links:
Genes affected
COA1 (HGNC:21868): (cytochrome c oxidase assembly factor 1) Involved in mitochondrial cytochrome c oxidase assembly and mitochondrial respiratory chain complex I assembly. Located in cytosol and mitochondrion. Is integral component of mitochondrial inner membrane. [provided by Alliance of Genome Resources, Apr 2022]
STK17A (HGNC:11395): (serine/threonine kinase 17a) This gene is a member of the DAP kinase-related apoptosis-inducing protein kinase family and encodes an autophosphorylated nuclear protein with a protein kinase domain. The protein has apoptosis-inducing activity. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

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=0.025092363).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COA1NM_018224.4 linkuse as main transcriptc.16T>A p.Tyr6Asn missense_variant, splice_region_variant 3/6 ENST00000223336.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COA1ENST00000223336.11 linkuse as main transcriptc.16T>A p.Tyr6Asn missense_variant, splice_region_variant 3/62 NM_018224.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000177
AC:
27
AN:
152232
Hom.:
0
Cov.:
33
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:
0.000397
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000161
AC:
40
AN:
249004
Hom.:
0
AF XY:
0.000208
AC XY:
28
AN XY:
134676
show subpopulations
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:
0.00
Gnomad FIN exome
AF:
0.0000463
Gnomad NFE exome
AF:
0.000328
Gnomad OTH exome
AF:
0.000331
GnomAD4 exome
AF:
0.000163
AC:
237
AN:
1456340
Hom.:
0
Cov.:
29
AF XY:
0.000199
AC XY:
144
AN XY:
724748
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:
0.0000116
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000206
Gnomad4 OTH exome
AF:
0.0000996
GnomAD4 genome
AF:
0.000177
AC:
27
AN:
152350
Hom.:
0
Cov.:
33
AF XY:
0.000148
AC XY:
11
AN XY:
74502
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:
0.000397
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000384
Hom.:
0
Bravo
AF:
0.000151
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000465
AC:
4
ExAC
AF:
0.000214
AC:
26

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 GeneticsFeb 28, 2024The c.16T>A (p.Y6N) alteration is located in exon 3 (coding exon 2) of the COA1 gene. This alteration results from a T to A substitution at nucleotide position 16, causing the tyrosine (Y) at amino acid position 6 to be replaced by an asparagine (N). 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
0.074
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
5.8
DANN
Benign
0.71
DEOGEN2
Benign
0.023
T;T;T;.;T;.
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.029
N
LIST_S2
Benign
0.59
T;.;.;T;T;T
M_CAP
Benign
0.0032
T
MetaRNN
Benign
0.025
T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N;N;N;.;.;.
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.42
N;N;N;N;N;.
REVEL
Benign
0.025
Sift
Uncertain
0.019
D;D;D;D;D;.
Sift4G
Benign
0.34
T;T;T;.;T;.
Polyphen
0.016
B;B;B;.;.;.
Vest4
0.26
MVP
0.34
MPC
0.38
ClinPred
0.028
T
GERP RS
-3.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.037
gMVP
0.11

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000017
dbscSNV1_RF
Benign
0.0
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: rs143216275; hg19: chr7-43687233; API