Variant 18-21741648-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_020774.4(MIB1):c.65C>T(p.Pro22Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000206 in 1,457,932 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

MIB1
NM_020774.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.85

Variant links:

Genes affected

MIB1 (HGNC:21086): (MIB E3 ubiquitin protein ligase 1) This gene encodes a protein containing multiple ankyrin repeats and RING finger domains that functions as an E3 ubiquitin ligase. The encoded protein positively regulates Notch signaling by ubiquitinating the Notch receptors, thereby facilitating their endocytosis. This protein may also promote the ubiquitination and degradation of death-associated protein kinase 1 (DAPK1). [provided by RefSeq, Jun 2013]

MIB1 links:

MIB1 (HGNC:):

MIB1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.795

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MIB1	NM_020774.4 linkuse as main transcript	c.65C>T	p.Pro22Leu	missense_variant	1/21	ENST00000261537.7	NP_065825.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MIB1	ENST00000261537.7 linkuse as main transcript	c.65C>T	p.Pro22Leu	missense_variant	1/21	1	NM_020774.4	ENSP00000261537.6		Q86YT6
MIB1	ENST00000578646.5 linkuse as main transcript	n.168-24124C>T		intron_variant		2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000206

AC:

AN:

1457932

Hom.:

Cov.:

AF XY:

0.00000414

AC XY:

AN XY:

725184

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:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000378

Hom.:

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 submitter

clinical testing

Ambry Genetics

May 29, 2023

The p.P22L variant (also known as c.65C>T), located in coding exon 1 of the MIB1 gene, results from a C to T substitution at nucleotide position 65. The proline at codon 22 is replaced by leucine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.051

BayesDel_noAF

Benign

-0.31

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.90

Eigen

Uncertain

0.23

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Uncertain

0.83

LIST_S2

Uncertain

0.92

M_CAP

Pathogenic

0.64

MetaRNN

Pathogenic

0.79

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.9

PrimateAI

Pathogenic

0.91

PROVEAN

Pathogenic

-5.0

REVEL

Benign

0.26

Sift

Benign

0.35

Sift4G

Benign

0.22

Polyphen

0.78

Vest4

0.55

MVP

0.61

MPC

0.77

ClinPred

0.85

GERP RS

4.3

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.8

Varity_R

0.55

gMVP

0.83

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