Variant 22-50064163-TAGCAGCAGC-TAGCAGC details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP3

The ENST00000311597.10(MLC1):c.927_929del(p.Leu310del) variant causes a inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000525 in 1,600,600 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. L309L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

MLC1
ENST00000311597.10 inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:1

Conservation

PhyloP100: 2.94

Variant links:

Genes affected

MLC1 (HGNC:17082): (modulator of VRAC current 1) The function of this gene product is unknown; however, homology to other proteins suggests that it may be an integral membrane transporter. Mutations in this gene have been associated with megalencephalic leukoencephalopathy with subcortical cysts, an autosomal recessive neurological disorder. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

MLC1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP3

Nonframeshift variant in repetitive region in ENST00000311597.10

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MLC1	NM_015166.4 linkuse as main transcript	c.927_929del	p.Leu310del	inframe_deletion	11/12	ENST00000311597.10	NP_055981.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MLC1	ENST00000311597.10 linkuse as main transcript	c.927_929del	p.Leu310del	inframe_deletion	11/12	1	NM_015166.4	ENSP00000310375	P1	Q15049-1
MLC1	ENST00000395876.6 linkuse as main transcript	c.927_929del	p.Leu310del	inframe_deletion	11/12	1		ENSP00000379216	P1	Q15049-1
MLC1	ENST00000483836.1 linkuse as main transcript	n.284_286del		non_coding_transcript_exon_variant	4/5	2

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

151904

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:

0.000194

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000589

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000545

AC:

AN:

1448696

Hom.:

AF XY:

0.0000596

AC XY:

AN XY:

720970

show subpopulations

Gnomad4 AFR exome

AF:

0.0000300

Gnomad4 AMR exome

AF:

0.000202

Gnomad4 ASJ exome

AF:

0.000116

Gnomad4 EAS exome

AF:

0.000101

Gnomad4 SAS exome

AF:

0.0000466

Gnomad4 FIN exome

AF:

0.000655

Gnomad4 NFE exome

AF:

0.0000235

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.0000329

AC:

AN:

151904

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74192

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000194

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000589

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000302

Asia WGS

AF:

0.00202

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 09, 2022

This variant, c.927_929del, results in the deletion of 1 amino acid(s) of the MLC1 protein (p.Leu310del), but otherwise preserves the integrity of the reading frame. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with MLC1-related conditions. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

MLC1-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Mar 24, 2021

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

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