13-107866256-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001080396.3(NALF1):ā€‹c.341C>Gā€‹(p.Ser114Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000502 in 1,594,192 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 Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000026 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000028 ( 0 hom. )

Consequence

NALF1
NM_001080396.3 missense

Scores

2
8
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.33
Variant links:
Genes affected
NALF1 (HGNC:33877): (NALCN channel auxiliary factor 1) Predicted to contribute to stretch-activated, cation-selective, calcium channel activity. Predicted to be involved in calcium ion import across plasma membrane. Predicted to be integral component of membrane. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.38181323).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NALF1NM_001080396.3 linkuse as main transcriptc.341C>G p.Ser114Trp missense_variant 1/3 ENST00000375915.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NALF1ENST00000375915.4 linkuse as main transcriptc.341C>G p.Ser114Trp missense_variant 1/31 NM_001080396.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152210
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00000937
AC:
2
AN:
213530
Hom.:
0
AF XY:
0.0000170
AC XY:
2
AN XY:
117728
show subpopulations
Gnomad AFR exome
AF:
0.000164
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:
0.00000277
AC:
4
AN:
1441864
Hom.:
0
Cov.:
33
AF XY:
0.00000559
AC XY:
4
AN XY:
715948
show subpopulations
Gnomad4 AFR exome
AF:
0.0000905
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:
9.06e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152328
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74494
show subpopulations
Gnomad4 AFR
AF:
0.0000962
Gnomad4 AMR
AF:
0.00
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
Bravo
AF:
0.0000302

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 26, 2023The c.341C>G (p.S114W) alteration is located in exon 1 (coding exon 1) of the FAM155A gene. This alteration results from a C to G substitution at nucleotide position 341, causing the serine (S) at amino acid position 114 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.31
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.24
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0078
T
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Benign
0.73
T
M_CAP
Pathogenic
0.39
D
MetaRNN
Benign
0.38
T
MetaSVM
Uncertain
0.12
D
MutationAssessor
Benign
0.34
N
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Benign
-1.2
N
REVEL
Uncertain
0.38
Sift
Uncertain
0.0050
D
Sift4G
Uncertain
0.012
D
Polyphen
0.97
D
Vest4
0.48
MutPred
0.26
Gain of catalytic residue at M110 (P = 0);
MVP
0.15
MPC
1.3
ClinPred
0.39
T
GERP RS
3.8
Varity_R
0.12
gMVP
0.41

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: rs931273903; hg19: chr13-108518604; API