rs7210231

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000747.3(CHRNB1):​c.1044+25C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.205 in 1,587,778 control chromosomes in the GnomAD database, including 35,146 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.20 ( 3186 hom., cov: 30)
Exomes 𝑓: 0.21 ( 31960 hom. )

Consequence

CHRNB1
NM_000747.3 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.20
Variant links:
Genes affected
CHRNB1 (HGNC:1961): (cholinergic receptor nicotinic beta 1 subunit) The muscle acetylcholine receptor is composed of five subunits: two alpha subunits and one beta, one gamma, and one delta subunit. This gene encodes the beta subunit of the acetylcholine receptor. The acetylcholine receptor changes conformation upon acetylcholine binding leading to the opening of an ion-conducting channel across the plasma membrane. Mutations in this gene are associated with slow-channel congenital myasthenic syndrome. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.69).
BP6
Variant 17-7454545-C-A is Benign according to our data. Variant chr17-7454545-C-A is described in ClinVar as [Benign]. Clinvar id is 256771.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.265 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CHRNB1NM_000747.3 linkuse as main transcriptc.1044+25C>A intron_variant ENST00000306071.7 NP_000738.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CHRNB1ENST00000306071.7 linkuse as main transcriptc.1044+25C>A intron_variant 1 NM_000747.3 ENSP00000304290 P1P11230-1

Frequencies

GnomAD3 genomes
AF:
0.199
AC:
30186
AN:
151950
Hom.:
3191
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.219
Gnomad AMI
AF:
0.286
Gnomad AMR
AF:
0.154
Gnomad ASJ
AF:
0.224
Gnomad EAS
AF:
0.0360
Gnomad SAS
AF:
0.278
Gnomad FIN
AF:
0.168
Gnomad MID
AF:
0.250
Gnomad NFE
AF:
0.205
Gnomad OTH
AF:
0.211
GnomAD3 exomes
AF:
0.192
AC:
48042
AN:
250578
Hom.:
5162
AF XY:
0.200
AC XY:
27078
AN XY:
135462
show subpopulations
Gnomad AFR exome
AF:
0.220
Gnomad AMR exome
AF:
0.110
Gnomad ASJ exome
AF:
0.229
Gnomad EAS exome
AF:
0.0401
Gnomad SAS exome
AF:
0.280
Gnomad FIN exome
AF:
0.178
Gnomad NFE exome
AF:
0.212
Gnomad OTH exome
AF:
0.197
GnomAD4 exome
AF:
0.206
AC:
295078
AN:
1435710
Hom.:
31960
Cov.:
27
AF XY:
0.208
AC XY:
148654
AN XY:
715810
show subpopulations
Gnomad4 AFR exome
AF:
0.217
Gnomad4 AMR exome
AF:
0.118
Gnomad4 ASJ exome
AF:
0.228
Gnomad4 EAS exome
AF:
0.0529
Gnomad4 SAS exome
AF:
0.273
Gnomad4 FIN exome
AF:
0.181
Gnomad4 NFE exome
AF:
0.209
Gnomad4 OTH exome
AF:
0.206
GnomAD4 genome
AF:
0.199
AC:
30189
AN:
152068
Hom.:
3186
Cov.:
30
AF XY:
0.196
AC XY:
14584
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.218
Gnomad4 AMR
AF:
0.153
Gnomad4 ASJ
AF:
0.224
Gnomad4 EAS
AF:
0.0361
Gnomad4 SAS
AF:
0.278
Gnomad4 FIN
AF:
0.168
Gnomad4 NFE
AF:
0.205
Gnomad4 OTH
AF:
0.208
Alfa
AF:
0.162
Hom.:
530
Bravo
AF:
0.198
Asia WGS
AF:
0.148
AC:
516
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJul 07, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.69
CADD
Benign
6.4
DANN
Benign
0.78

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: rs7210231; hg19: chr17-7357864; COSMIC: COSV60140501; COSMIC: COSV60140501; API