Genetic Variant NUB1:p.Leu181Arg (chr7-151355894-T-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001243351.2(NUB1):c.542T>G(p.Leu181Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,652 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L181P) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

NUB1
NM_001243351.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.53

Publications

0 publications found

Variant links:

Genes affected

NUB1 (HGNC:17623): (negative regulator of ubiquitin like proteins 1) This gene encodes a protein that functions as a negative regulator of NEDD8, a ubiquitin-like protein that conjugates with cullin family members in order to regulate vital biological events. The protein encoded by this gene regulates the NEDD8 conjugation system post-transcriptionally by recruiting NEDD8 and its conjugates to the proteasome for degradation. This protein interacts with the product of the AIPL1 gene, which is associated with Leber congenital amaurosis, an inherited retinopathy, and mutations in that gene can abolish interaction with this protein, which may contribute to the pathogenesis. This protein is also known to accumulate in Lewy bodies in Parkinson's disease and dementia with Lewy bodies, and in glial cytoplasmic inclusions in multiple system atrophy, with this abnormal accumulation being specific to alpha-synucleinopathy lesions. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Aug 2011]

NUB1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.050700158).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NUB1	NM_001243351.2 link	c.542T>G	p.Leu181Arg	missense_variant	Exon 6 of 15	ENST00000568733.6	NP_001230280.2	Q9Y5A7-1H3BM74

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NUB1	ENST00000568733.6 link	c.542T>G	p.Leu181Arg	missense_variant	Exon 6 of 15	1	NM_001243351.2	ENSP00000454264.2		Q9Y5A7-1H3BM74

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461652

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727098

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53400

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111850

Other (OTH)

AF:

0.00

AC:

AN:

60370

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.061

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.47

CADD

Benign

(source)

DANN

Benign

0.47

DEOGEN2

Benign

0.0048

T;T;T;T

Eigen

Benign

-0.87

Eigen_PC

Benign

-0.86

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.78

T;T;T;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.051

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

.;.;L;.

PhyloP100

1.5

PrimateAI

Benign

0.47

PROVEAN

Benign

0.25

N;N;.;N

REVEL

Benign

0.023

Sift

Benign

0.60

T;T;.;T

Sift4G

Benign

0.54

T;T;.;T

Polyphen

0.032

.;.;B;.

Vest4

0.27

MutPred

0.36

.;.;Gain of solvent accessibility (P = 0.0216);Gain of solvent accessibility (P = 0.0216);

MVP

0.30

MPC

0.62

ClinPred

0.12

GERP RS

1.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.075

gMVP

0.48

Mutation Taster

=94/6

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over