Variant rs55633891 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_017581.4(CHRNA9):c.944C>A(p.Ala315Glu) variant causes a missense change. The variant allele was found at a frequency of 0.0000948 in 1,613,654 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. A315V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

CHRNA9
NM_017581.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.85

Variant links:

Genes affected

CHRNA9 (HGNC:14079): (cholinergic receptor nicotinic alpha 9 subunit) This gene is a member of the ligand-gated ionic channel family and nicotinic acetylcholine receptor gene superfamily. It encodes a plasma membrane protein that forms homo- or hetero-oligomeric divalent cation channels. This protein is involved in cochlea hair cell development and is also expressed in the outer hair cells (OHCs) of the adult cochlea. [provided by RefSeq, Feb 2012]

CHRNA9 links:

CHRNA9 (HGNC:):

CHRNA9 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.899

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CHRNA9	NM_017581.4 linkuse as main transcript	c.944C>A	p.Ala315Glu	missense_variant	5/5	ENST00000310169.3	NP_060051.2	Q9UGM1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CHRNA9	ENST00000310169.3 linkuse as main transcript	c.944C>A	p.Ala315Glu	missense_variant	5/5	1	NM_017581.4	ENSP00000312663.2		Q9UGM1
CHRNA9	ENST00000509518.1 linkuse as main transcript	n.395C>A		non_coding_transcript_exon_variant	2/2	3

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152132

Hom.:

Cov.:

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000240

AC:

AN:

249514

Hom.:

AF XY:

0.0000222

AC XY:

AN XY:

134918

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:

0.00

Gnomad NFE exome

AF:

0.0000446

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000101

AC:

147

AN:

1461522

Hom.:

Cov.:

AF XY:

0.0000935

AC XY:

AN XY:

727034

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000121

Gnomad4 OTH exome

AF:

0.000215

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152132

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74318

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:

0.0000882

Gnomad4 OTH

AF:

0.00

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.000119

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

0.080

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.76

Eigen

Pathogenic

0.81

Eigen_PC

Pathogenic

0.77

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.94

M_CAP

Uncertain

0.13

MetaRNN

Pathogenic

0.90

MetaSVM

Uncertain

0.56

MutationAssessor

Uncertain

2.6

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-3.2

REVEL

Pathogenic

0.78

Sift

Uncertain

0.010

Sift4G

Uncertain

0.049

Polyphen

0.99

Vest4

0.68

MutPred

0.78

Gain of sheet (P = 0.0827);

MVP

0.96

MPC

0.42

ClinPred

0.96

GERP RS

4.9

Varity_R

0.90

gMVP

0.87

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over