rs17582557

Variant summary

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

The NM_052867.4(NALCN):ā€‹c.1836A>Gā€‹(p.Lys612=) variant causes a synonymous change. The variant allele was found at a frequency of 0.0475 in 1,581,280 control chromosomes in the GnomAD database, including 2,031 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.037 ( 151 hom., cov: 33)
Exomes š‘“: 0.049 ( 1880 hom. )

Consequence

NALCN
NM_052867.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 5.10
Variant links:
Genes affected
NALCN (HGNC:19082): (sodium leak channel, non-selective) This gene encodes a voltage-independent, nonselective cation channel which belongs to a family of voltage-gated sodium and calcium channels that regulates the resting membrane potential and excitability of neurons. This family is expressed throughout the nervous system and conducts a persistent sodium leak current that contributes to tonic neuronal excitability. The encoded protein forms a channelosome complex that includes G-protein-coupled receptors, UNC-79, UNC-80, NCA localization factor-1, and src family tyrosine kinases. Naturally occurring mutations in this gene are associated with infantile neuroaxonal dystrophy, infantile hypotonia with psychomotor retardation and characteristic facies (IHPRF) syndrome, and congenital contractures of the limbs and face with hypotonia and developmental delay (CLIFAHDD) syndrome. A knockout of the orthologous gene in mice results in paralysis with a severely disrupted respiratory rhythm, and lethality within 24 hours after birth. [provided by RefSeq, Apr 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.5).
BP6
Variant 13-101176303-T-C is Benign according to our data. Variant chr13-101176303-T-C is described in ClinVar as [Benign]. Clinvar id is 262251.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.0515 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NALCNNM_052867.4 linkuse as main transcriptc.1836A>G p.Lys612= synonymous_variant 15/44 ENST00000251127.11 NP_443099.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NALCNENST00000251127.11 linkuse as main transcriptc.1836A>G p.Lys612= synonymous_variant 15/441 NM_052867.4 ENSP00000251127 P1Q8IZF0-1

Frequencies

GnomAD3 genomes
AF:
0.0374
AC:
5684
AN:
152162
Hom.:
151
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00970
Gnomad AMI
AF:
0.180
Gnomad AMR
AF:
0.0300
Gnomad ASJ
AF:
0.0620
Gnomad EAS
AF:
0.000962
Gnomad SAS
AF:
0.0151
Gnomad FIN
AF:
0.0639
Gnomad MID
AF:
0.0506
Gnomad NFE
AF:
0.0530
Gnomad OTH
AF:
0.0330
GnomAD3 exomes
AF:
0.0429
AC:
9582
AN:
223590
Hom.:
263
AF XY:
0.0437
AC XY:
5317
AN XY:
121558
show subpopulations
Gnomad AFR exome
AF:
0.00776
Gnomad AMR exome
AF:
0.0374
Gnomad ASJ exome
AF:
0.0613
Gnomad EAS exome
AF:
0.000315
Gnomad SAS exome
AF:
0.0160
Gnomad FIN exome
AF:
0.0668
Gnomad NFE exome
AF:
0.0549
Gnomad OTH exome
AF:
0.0577
GnomAD4 exome
AF:
0.0486
AC:
69416
AN:
1428998
Hom.:
1880
Cov.:
30
AF XY:
0.0483
AC XY:
34312
AN XY:
710378
show subpopulations
Gnomad4 AFR exome
AF:
0.00690
Gnomad4 AMR exome
AF:
0.0353
Gnomad4 ASJ exome
AF:
0.0588
Gnomad4 EAS exome
AF:
0.000186
Gnomad4 SAS exome
AF:
0.0169
Gnomad4 FIN exome
AF:
0.0624
Gnomad4 NFE exome
AF:
0.0535
Gnomad4 OTH exome
AF:
0.0446
GnomAD4 genome
AF:
0.0373
AC:
5682
AN:
152282
Hom.:
151
Cov.:
33
AF XY:
0.0369
AC XY:
2750
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.00967
Gnomad4 AMR
AF:
0.0299
Gnomad4 ASJ
AF:
0.0620
Gnomad4 EAS
AF:
0.000965
Gnomad4 SAS
AF:
0.0151
Gnomad4 FIN
AF:
0.0639
Gnomad4 NFE
AF:
0.0530
Gnomad4 OTH
AF:
0.0326
Alfa
AF:
0.0502
Hom.:
75
Bravo
AF:
0.0343
Asia WGS
AF:
0.0120
AC:
43
AN:
3474

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitterclinical testingGeneDxJul 15, 2018- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
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
-0.50
CADD
Benign
12
DANN
Benign
0.72

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: rs17582557; hg19: chr13-101828654; COSMIC: COSV51924490; COSMIC: COSV51924490; API