rs545520806

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PP5_ModerateBP4BP7

The NM_000079.4(CHRNA1):​c.687C>T​(p.Arg229=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,614,168 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

CHRNA1
NM_000079.4 synonymous

Scores

2

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: -0.0180
Variant links:
Genes affected
CHRNA1 (HGNC:1955): (cholinergic receptor nicotinic alpha 1 subunit) The muscle acetylcholine receptor consiststs of 5 subunits of 4 different types: 2 alpha subunits and 1 each of the beta, gamma, and delta subunits. This gene encodes an alpha subunit that plays a role in acetlycholine binding/channel gating. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Nov 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PP5
Variant 2-174753594-G-A is Pathogenic according to our data. Variant chr2-174753594-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 190452.Status of the report is criteria_provided_single_submitter, 1 stars.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.5). . Strength limited to SUPPORTING due to the PP5.
BP7
Synonymous conserved (PhyloP=-0.018 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CHRNA1NM_000079.4 linkuse as main transcriptc.687C>T p.Arg229= synonymous_variant 6/9 ENST00000348749.9 NP_000070.1
CHRNA1NM_001039523.3 linkuse as main transcriptc.762C>T p.Arg254= synonymous_variant 7/10 NP_001034612.1
CHRNA1XM_017003256.2 linkuse as main transcriptc.783C>T p.Arg261= synonymous_variant 6/9 XP_016858745.1
CHRNA1XM_017003257.2 linkuse as main transcriptc.708C>T p.Arg236= synonymous_variant 5/8 XP_016858746.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CHRNA1ENST00000348749.9 linkuse as main transcriptc.687C>T p.Arg229= synonymous_variant 6/91 NM_000079.4 ENSP00000261008 P1P02708-2
ENST00000442996.1 linkuse as main transcriptn.322-19155G>A intron_variant, non_coding_transcript_variant 1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152156
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00000398
AC:
1
AN:
251448
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.00000410
AC:
6
AN:
1461894
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727248
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:
0.00000540
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152274
Hom.:
0
Cov.:
31
AF XY:
0.0000134
AC XY:
1
AN XY:
74444
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
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

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Non-immune hydrops fetalis Pathogenic:1
Likely pathogenic, criteria provided, single submitterresearchCenter for Genomic Medicine, King Faisal Specialist Hospital and Research CenterMay 13, 2012- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.50
CADD
Benign
11
DANN
Benign
0.85

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: rs545520806; hg19: chr2-175618322; API