Genetic Variant MIB1:c.-5C>G (chr18-21741579-C-G) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_020774.4(MIB1):c.-5C>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000406 in 1,476,664 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

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

Exomes 𝑓: 0.0000038 ( 0 hom. )

Consequence

MIB1
NM_020774.4 5_prime_UTR

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.77

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

left ventricular noncompaction
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
dilated cardiomyopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
neurodevelopmental disorder
Inheritance: AD Classification: LIMITED Submitted by: G2P
left ventricular noncompaction 7
Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
isolated cleft palate
Inheritance: Unknown Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

MIB1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.45).

BS2

High AC in GnomAdExome4 at 5 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020774.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MIB1	NM_020774.4	MANE Select	c.-5C>G		5_prime_UTR	Exon 1 of 21	NP_065825.1	Q86YT6

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
MIB1	ENST00000261537.7	TSL:1 MANE Select	c.-5C>G	5_prime_UTR	Exon 1 of 21	ENSP00000261537.6	Q86YT6
MIB1	ENST00000955830.1		c.-5C>G	5_prime_UTR	Exon 1 of 22	ENSP00000625889.1
MIB1	ENST00000864012.1		c.-5C>G	5_prime_UTR	Exon 1 of 20	ENSP00000534071.1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151982

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:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000854

AC:

AN:

117060

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000377

AC:

AN:

1324574

Hom.:

Cov.:

AF XY:

0.00000459

AC XY:

AN XY:

652902

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

27876

American (AMR)

AF:

0.00

AC:

AN:

24182

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20784

East Asian (EAS)

AF:

0.00

AC:

AN:

31260

South Asian (SAS)

AF:

0.0000741

AC:

AN:

67440

European-Finnish (FIN)

AF:

0.00

AC:

AN:

46860

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4544

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1047554

Other (OTH)

AF:

0.00

AC:

AN:

54074

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

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152090

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74350

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41564

American (AMR)

AF:

0.00

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5160

South Asian (SAS)

AF:

0.000207

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10554

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67920

Other (OTH)

AF:

0.00

AC:

AN:

2110

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.45

CADD

Benign

(source)

DANN

Benign

0.81

PhyloP100

1.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=221/79

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over