chr1-11846023-A-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_006172.4(NPPA):​c.451-9T>G variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,772 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 benign (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

NPPA
NM_006172.4 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.003935
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.66
Variant links:
Genes affected
NPPA (HGNC:7939): (natriuretic peptide A) The protein encoded by this gene belongs to the natriuretic peptide family. Natriuretic peptides are implicated in the control of extracellular fluid volume and electrolyte homeostasis. This protein is synthesized as a large precursor (containing a signal peptide), which is processed to release a peptide from the N-terminus with similarity to vasoactive peptide, cardiodilatin, and another peptide from the C-terminus with natriuretic-diuretic activity. Mutations in this gene have been associated with atrial fibrillation familial type 6. This gene is located adjacent to another member of the natriuretic family of peptides on chromosome 1. [provided by RefSeq, Oct 2015]
CLCN6 (HGNC:2024): (chloride voltage-gated channel 6) This gene encodes a member of the voltage-dependent chloride channel protein family. Members of this family can function as either chloride channels or antiporters. This protein is primarily localized to late endosomes and functions as a chloride/proton antiporter. Alternate splicing results in both coding and non-coding variants. Additional alternately spliced variants have been described but their full-length structure is unknown. [provided by RefSeq, Mar 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP6
Variant 1-11846023-A-C is Benign according to our data. Variant chr1-11846023-A-C is described in ClinVar as [Likely_benign]. Clinvar id is 1107437.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NPPANM_006172.4 linkuse as main transcriptc.451-9T>G splice_polypyrimidine_tract_variant, intron_variant ENST00000376480.7
NPPA-AS1NR_037806.1 linkuse as main transcriptn.1479+257A>C intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NPPAENST00000376480.7 linkuse as main transcriptc.451-9T>G splice_polypyrimidine_tract_variant, intron_variant 1 NM_006172.4 P1
CLCN6ENST00000446542.5 linkuse as main transcriptn.781+257A>C intron_variant, non_coding_transcript_variant 1
NPPAENST00000376476.1 linkuse as main transcriptc.301-9T>G splice_polypyrimidine_tract_variant, intron_variant 3
CLCN6ENST00000400892.3 linkuse as main transcriptc.*1961+257A>C intron_variant, NMD_transcript_variant 3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250736
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135646
show subpopulations
Gnomad AFR exome
AF:
0.0000615
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461772
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727212
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.0000113

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Atrial fibrillation, familial, 6 Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeFeb 24, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.48
CADD
Benign
13
DANN
Benign
0.82

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0039
dbscSNV1_RF
Benign
0.080
SpliceAI score (max)
0.20
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.20
Position offset: 36

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: rs776697644; hg19: chr1-11906080; API