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GeneBe

14-93542500-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2BP4BS2

The NM_001395159.1(UNC79):​c.1559C>T​(p.Thr520Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,614,074 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 (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

UNC79
NM_001395159.1 missense

Scores

3
6
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.67
Variant links:
Genes affected
UNC79 (HGNC:19966): (unc-79 homolog, NALCN channel complex subunit) The NALCN channel is responsible for Na(+) leak currents. The protein encoded by this gene, along with UNC80, is an accessory subunit of the NALCN channel that contributes to the Ca(2+) sensitivity of the channel. [provided by RefSeq, Sep 2016]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP2
Missense variant where missense usually causes diseases, UNC79
BP4
Computational evidence support a benign effect (MetaRNN=0.29983252).
BS2
High AC in GnomAdExome4 at 17 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
UNC79NM_001395159.1 linkuse as main transcriptc.1559C>T p.Thr520Ile missense_variant 14/52 ENST00000695012.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
UNC79ENST00000695012.1 linkuse as main transcriptc.1559C>T p.Thr520Ile missense_variant 14/52 NM_001395159.1 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152236
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000116
AC:
17
AN:
1461838
Hom.:
0
Cov.:
32
AF XY:
0.0000138
AC XY:
10
AN XY:
727208
show subpopulations
Gnomad4 AFR exome
AF:
0.00
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:
0.0000144
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152236
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74380
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 16, 2022The c.1028C>T (p.T343I) alteration is located in exon 14 (coding exon 11) of the UNC79 gene. This alteration results from a C to T substitution at nucleotide position 1028, causing the threonine (T) at amino acid position 343 to be replaced by an isoleucine (I). 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
BayesDel_addAF
Uncertain
0.16
D
BayesDel_noAF
Uncertain
-0.010
CADD
Uncertain
24
DANN
Uncertain
1.0
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.61
FATHMM_MKL
Pathogenic
0.98
D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.30
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Benign
-0.18
N;N;N;N;.
REVEL
Uncertain
0.40
Sift
Benign
0.47
T;T;T;T;.
Sift4G
Pathogenic
0.0
D;D;D;D;D
Vest4
0.59
MutPred
0.23
Loss of glycosylation at T343 (P = 0.025);.;.;.;Loss of glycosylation at T343 (P = 0.025);
MVP
0.082
MPC
2.0
ClinPred
0.79
D
GERP RS
5.8
Varity_R
0.16
gMVP
0.35

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: rs1264786788; hg19: chr14-94008846; API