Variant 3-152456358-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP6_ModerateBS2

The NM_207296.2(MBNL1):c.899C>T(p.Thr300Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000411 in 1,461,324 control chromosomes in the GnomAD database, with no homozygous occurrence. 9/15 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

MBNL1
NM_207296.2 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 5.54

Variant links:

Genes affected

MBNL1 (HGNC:6923): (muscleblind like splicing regulator 1) This gene encodes a member of the muscleblind protein family which was initially described in Drosophila melanogaster. The encoded protein is a C3H-type zinc finger protein that modulates alternative splicing of pre-mRNAs. Muscleblind proteins bind specifically to expanded dsCUG RNA but not to normal size CUG repeats and may thereby play a role in the pathophysiology of myotonic dystrophy. Mice lacking this gene exhibited muscle abnormalities and cataracts. Several alternatively spliced transcript variants have been described but the full-length natures of only some have been determined. The different isoforms are thought to have different binding specificities and/or splicing activities. [provided by RefSeq, Sep 2015]

MBNL1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP6

Variant 3-152456358-C-T is Benign according to our data. Variant chr3-152456358-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3543860.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MBNL1	NM_021038.5 link	c.1089C>T	p.Asn363Asn	synonymous_variant	8/10	ENST00000324210.10	NP_066368.2	Q9NR56-5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MBNL1	ENST00000324210.10 link	c.1089C>T	p.Asn363Asn	synonymous_variant	8/10	1	NM_021038.5	ENSP00000319429.5		Q9NR56-5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000278

AC:

AN:

251366

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135844

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000203

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS 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:

0.00000411

AC:

AN:

1461324

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726982

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000134

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 03, 2024

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

-0.20

BayesDel_noAF

Benign

-0.23

CADD

Benign

DANN

Uncertain

0.99

Eigen

Benign

0.15

Eigen_PC

Uncertain

0.32

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.39

T;.

M_CAP

Benign

0.0036

MetaRNN

Uncertain

0.44

T;T

MetaSVM

Benign

-1.0

PROVEAN

Benign

-1.6

N;N

REVEL

Benign

0.097

Sift

Uncertain

0.0060

D;D

Sift4G

Uncertain

0.044

D;D

Vest4

0.76

MutPred

0.32

Loss of glycosylation at T300 (P = 0.0025);Loss of glycosylation at T300 (P = 0.0025);

MVP

0.55

ClinPred

0.086

GERP RS

5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

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