Genetic Variant UNC80:p.Asp13Asn (chr2-209772109-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001371986.1(UNC80):c.37G>A(p.Asp13Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000452 in 1,549,212 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: 0.0000043 ( 0 hom. )

Consequence

UNC80
NM_001371986.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.55

Variant links:

Genes affected

UNC80 (HGNC:26582): (unc-80 homolog, NALCN channel complex subunit) The protein encoded by this gene is a component of a voltage-independent 'leak' ion-channel complex, in which it performs essential functions, such as serving as a bridge between two other components (sodium leak channel non-selective and UNC79) and as a scaffold for Src kinases. Leak channels play an importnat role in establishment and maintenance of resting membrane potentials in neurons. Mutations in this gene are associated with congenital infantile encephalopathy, intellectual disability and growth issues. [provided by RefSeq, Aug 2016]

UNC80 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.11185402).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
UNC80	NM_001371986.1 link	c.37G>A	p.Asp13Asn	missense_variant	Exon 1 of 65	ENST00000673920.1	NP_001358915.1
UNC80	NM_032504.2 link	c.37G>A	p.Asp13Asn	missense_variant	Exon 1 of 64		NP_115893.1	Q8N2C7-1
UNC80	NM_182587.4 link	c.37G>A	p.Asp13Asn	missense_variant	Exon 1 of 63		NP_872393.3	Q8N2C7-7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
UNC80	ENST00000673920.1 link	c.37G>A	p.Asp13Asn	missense_variant	Exon 1 of 65		NM_001371986.1	ENSP00000501211.1		A0A669KBC5

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151926

Hom.:

Cov.:

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:

0.000195

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

GnomAD4 exome

AF:

0.00000429

AC:

AN:

1397286

Hom.:

Cov.:

AF XY:

0.00000580

AC XY:

AN XY:

689226

show subpopulations

Gnomad4 AFR exome

AF:

0.0000318

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000126

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000691

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151926

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74166

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000195

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jun 05, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available"). ClinVar contains an entry for this variant (Variation ID: 1356126). This variant has not been reported in the literature in individuals affected with UNC80-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 13 of the UNC80 protein (p.Asp13Asn). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.65

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.053

T;.

Eigen

Benign

-0.33

Eigen_PC

Benign

-0.19

FATHMM_MKL

Benign

0.14

LIST_S2

Uncertain

0.92

D;D

M_CAP

Uncertain

0.15

MetaRNN

Benign

0.11

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.55

N;N

PrimateAI

Pathogenic

0.91

PROVEAN

Benign

-0.80

N;N

REVEL

Benign

0.088

Sift

Benign

0.10

T;T

Sift4G

Uncertain

0.0020

D;D

Polyphen

0.13

B;.

Vest4

0.097

MutPred

0.27

Gain of MoRF binding (P = 0.0551);Gain of MoRF binding (P = 0.0551);

MVP

0.099

MPC

0.33

ClinPred

0.58

GERP RS

3.5

Varity_R

0.20

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over