rs1289556

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_052867.4(NALCN):ā€‹c.4416A>Cā€‹(p.Ile1472=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.364 in 1,610,586 control chromosomes in the GnomAD database, including 114,351 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.44 ( 17334 hom., cov: 33)
Exomes š‘“: 0.36 ( 97017 hom. )

Consequence

NALCN
NM_052867.4 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 2.08
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 -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP6
Variant 13-101067948-T-G is Benign according to our data. Variant chr13-101067948-T-G is described in ClinVar as [Benign]. Clinvar id is 262263.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-101067948-T-G is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=2.08 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.708 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NALCNNM_052867.4 linkuse as main transcriptc.4416A>C p.Ile1472= synonymous_variant 39/44 ENST00000251127.11 NP_443099.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NALCNENST00000251127.11 linkuse as main transcriptc.4416A>C p.Ile1472= synonymous_variant 39/441 NM_052867.4 ENSP00000251127 P1Q8IZF0-1

Frequencies

GnomAD3 genomes
AF:
0.443
AC:
67239
AN:
151916
Hom.:
17302
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.715
Gnomad AMI
AF:
0.360
Gnomad AMR
AF:
0.291
Gnomad ASJ
AF:
0.426
Gnomad EAS
AF:
0.134
Gnomad SAS
AF:
0.340
Gnomad FIN
AF:
0.350
Gnomad MID
AF:
0.345
Gnomad NFE
AF:
0.360
Gnomad OTH
AF:
0.407
GnomAD3 exomes
AF:
0.341
AC:
85333
AN:
250328
Hom.:
16871
AF XY:
0.340
AC XY:
46007
AN XY:
135212
show subpopulations
Gnomad AFR exome
AF:
0.719
Gnomad AMR exome
AF:
0.185
Gnomad ASJ exome
AF:
0.424
Gnomad EAS exome
AF:
0.125
Gnomad SAS exome
AF:
0.336
Gnomad FIN exome
AF:
0.354
Gnomad NFE exome
AF:
0.360
Gnomad OTH exome
AF:
0.342
GnomAD4 exome
AF:
0.356
AC:
518861
AN:
1458552
Hom.:
97017
Cov.:
32
AF XY:
0.355
AC XY:
257469
AN XY:
725648
show subpopulations
Gnomad4 AFR exome
AF:
0.728
Gnomad4 AMR exome
AF:
0.195
Gnomad4 ASJ exome
AF:
0.422
Gnomad4 EAS exome
AF:
0.151
Gnomad4 SAS exome
AF:
0.333
Gnomad4 FIN exome
AF:
0.358
Gnomad4 NFE exome
AF:
0.358
Gnomad4 OTH exome
AF:
0.367
GnomAD4 genome
AF:
0.443
AC:
67305
AN:
152034
Hom.:
17334
Cov.:
33
AF XY:
0.433
AC XY:
32215
AN XY:
74318
show subpopulations
Gnomad4 AFR
AF:
0.714
Gnomad4 AMR
AF:
0.290
Gnomad4 ASJ
AF:
0.426
Gnomad4 EAS
AF:
0.134
Gnomad4 SAS
AF:
0.337
Gnomad4 FIN
AF:
0.350
Gnomad4 NFE
AF:
0.360
Gnomad4 OTH
AF:
0.408
Alfa
AF:
0.378
Hom.:
19319
Bravo
AF:
0.446
Asia WGS
AF:
0.292
AC:
1013
AN:
3478
EpiCase
AF:
0.360
EpiControl
AF:
0.357

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 03, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
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
-0.48
CADD
Benign
7.1
DANN
Benign
0.80

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: rs1289556; hg19: chr13-101720300; COSMIC: COSV51933813; API