Genetic Variant NM_001170687.4:c.-8C>T (chr1-1623445-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_001170687.4(MIB2):c.-8C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000225 in 1,600,800 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000019 ( 1 hom. )

Consequence

MIB2
NM_001170687.4 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.674

Variant links:

Genes affected

MIB2 (HGNC:30577): (MIB E3 ubiquitin protein ligase 2) The protein encoded by this gene is an E3 ubiquitin protein ligase that mediates ubiquitination of proteins in the Notch signaling pathway. The encoded protein may be a suppressor of melanoma invasion. [provided by RefSeq, Mar 2017]

MIB2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.055912554).

BP6

Variant 1-1623445-C-T is Benign according to our data. Variant chr1-1623445-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3126109.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MIB2	NM_001170687.4 link	c.-8C>T		5_prime_UTR_premature_start_codon_gain_variant	Exon 3 of 20	ENST00000355826.10	NP_001164158.3
MIB2	NM_001170687.4 link	c.-8C>T		5_prime_UTR_variant	Exon 3 of 20	ENST00000355826.10	NP_001164158.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MIB2	ENST00000355826 link	c.-8C>T		5_prime_UTR_premature_start_codon_gain_variant	Exon 3 of 20	1	NM_001170687.4	ENSP00000348081.6		Q96AX9-1E9PD12
MIB2	ENST00000355826 link	c.-8C>T		5_prime_UTR_variant	Exon 3 of 20	1	NM_001170687.4	ENSP00000348081.6		Q96AX9-1E9PD12

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000323

AC:

AN:

216842

Hom.:

AF XY:

0.0000335

AC XY:

AN XY:

119546

show subpopulations

Gnomad AFR exome

AF:

0.000250

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000183

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000107

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000186

AC:

AN:

1448606

Hom.:

Cov.:

AF XY:

0.0000181

AC XY:

AN XY:

720000

show subpopulations

Gnomad4 AFR exome

AF:

0.0000306

Gnomad4 AMR exome

AF:

0.0000685

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000257

Gnomad4 SAS exome

AF:

0.0000354

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000172

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152194

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.000145

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:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000283

Hom.:

Bravo

AF:

0.0000831

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000122

AC:

ExAC

AF:

0.0000503

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Mar 07, 2024

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.54

BayesDel_noAF

Benign

-0.72

CADD

Benign

4.4

DANN

Benign

0.67

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.7

FATHMM_MKL

Benign

0.0033

LIST_S2

Benign

0.44

T;T;T;T;T

M_CAP

Benign

0.0054

MetaRNN

Benign

0.056

T;T;T;T;T

MetaSVM

Benign

-1.0

PrimateAI

Uncertain

0.62

PROVEAN

Benign

-0.89

N;N;N;N;N

REVEL

Benign

0.031

Sift

Uncertain

0.0050

D;D;D;D;T

Sift4G

Benign

0.42

T;T;T;T;T

Vest4

0.064

MVP

0.14

MPC

0.45

ClinPred

0.011

GERP RS

-6.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

gMVP

0.059

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