11-3667240-G-T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PP3_Strong

The NM_020402.4(CHRNA10):​c.887C>A​(p.Pro296Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000126 in 1,583,556 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P296L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

CHRNA10
NM_020402.4 missense

Scores

12
5
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.86

Publications

0 publications found
Variant links:
Genes affected
CHRNA10 (HGNC:13800): (cholinergic receptor nicotinic alpha 10 subunit) Predicted to enable acetylcholine-gated cation-selective channel activity. Acts upstream of or within positive regulation of cytosolic calcium ion concentration. Predicted to be located in membrane. Predicted to be active in cholinergic synapse and neuron projection. Predicted to be integral component of postsynaptic specialization membrane. [provided by Alliance of Genome Resources, Apr 2022]
ART1 (HGNC:723): (ADP-ribosyltransferase 1) ADP-ribosyltransferase catalyzes the ADP-ribosylation of arginine residues in proteins. Mono-ADP-ribosylation is a posttranslational modification of proteins that is interfered with by a variety of bacterial toxins including cholera, pertussis, and heat-labile enterotoxins of E. coli. The amino acid sequence consists of predominantly hydrophobic N- and C-terminal regions, which is characteristic of glycosylphosphatidylinositol (GPI)-anchored proteins. This gene was previously designated ART2. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.982

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020402.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHRNA10
NM_020402.4
MANE Select
c.887C>Ap.Pro296Gln
missense
Exon 4 of 5NP_065135.2
CHRNA10
NM_001303034.2
c.269C>Ap.Pro90Gln
missense
Exon 4 of 5NP_001289963.1
CHRNA10
NM_001303035.2
c.269C>Ap.Pro90Gln
missense
Exon 4 of 5NP_001289964.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHRNA10
ENST00000250699.2
TSL:1 MANE Select
c.887C>Ap.Pro296Gln
missense
Exon 4 of 5ENSP00000250699.2Q9GZZ6
CHRNA10
ENST00000534359.1
TSL:1
c.340C>Ap.Arg114Ser
missense
Exon 4 of 5ENSP00000437107.1E9PNX2
CHRNA10
ENST00000526599.1
TSL:1
n.*658C>A
non_coding_transcript_exon
Exon 4 of 5ENSP00000432757.1E9PNT7

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152192
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000547
AC:
11
AN:
200954
AF XY:
0.0000538
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000253
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000223
Gnomad OTH exome
AF:
0.000190
GnomAD4 exome
AF:
0.0000126
AC:
18
AN:
1431364
Hom.:
0
Cov.:
32
AF XY:
0.0000127
AC XY:
9
AN XY:
711326
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33078
American (AMR)
AF:
0.000212
AC:
9
AN:
42476
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25732
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39014
South Asian (SAS)
AF:
0.0000118
AC:
1
AN:
84494
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
37182
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4996
European-Non Finnish (NFE)
AF:
0.00000543
AC:
6
AN:
1104908
Other (OTH)
AF:
0.0000336
AC:
2
AN:
59484
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152192
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74348
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000482
AC:
2
AN:
41462
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.0385499), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000416
ExAC
AF:
0.0000422
AC:
5

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.24
D
BayesDel_noAF
Pathogenic
0.39
CADD
Pathogenic
29
DANN
Benign
0.86
DEOGEN2
Pathogenic
0.84
D
Eigen
Pathogenic
0.69
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.96
D
M_CAP
Uncertain
0.12
D
MetaRNN
Pathogenic
0.98
D
MetaSVM
Uncertain
0.61
D
MutationAssessor
Pathogenic
3.2
M
PhyloP100
9.9
PrimateAI
Uncertain
0.79
T
PROVEAN
Pathogenic
-8.0
D
REVEL
Pathogenic
0.90
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.92
MutPred
0.94
Loss of methylation at K300 (P = 0.1061)
MVP
0.90
MPC
0.58
ClinPred
0.86
D
GERP RS
5.0
Varity_R
0.94
gMVP
0.80
Mutation Taster
=24/76
disease causing

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

Other links and lift over

dbSNP: rs765490656; hg19: chr11-3688470; API