4-127920845-G-T

Position:

chr4-127920845-G-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_001410766.1(MFSD8):c.*914C>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000225 in 1,612,398 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

MFSD8
NM_001410766.1 3_prime_UTR

Scores

Splicing: ADA: 0.001692

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: 0.175

Variant links:

Genes affected

MFSD8 (HGNC:28486): (major facilitator superfamily domain containing 8) This gene encodes a ubiquitous integral membrane protein that contains a transporter domain and a major facilitator superfamily (MFS) domain. Other members of the major facilitator superfamily transport small solutes through chemiosmotic ion gradients. The substrate transported by this protein is unknown. The protein likely localizes to lysosomal membranes. Mutations in this gene are correlated with a variant form of late infantile-onset neuronal ceroid lipofuscinoses (vLINCL). [provided by RefSeq, Oct 2008]

MFSD8 links:

MFSD8 (HGNC:):

MFSD8 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.83).

BP6

Variant 4-127920845-G-T is Benign according to our data. Variant chr4-127920845-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 138226.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=3}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MFSD8	NM_001371596.2 linkuse as main transcript	c.1351-9C>A		intron_variant		ENST00000641686.2	NP_001358525.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MFSD8	ENST00000641686.2 linkuse as main transcript	c.1351-9C>A		intron_variant			NM_001371596.2	ENSP00000493218.2		Q8NHS3-1

Frequencies

GnomAD3 genomes

AF:

0.00120

AC:

183

AN:

151984

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00430

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.0000147

Gnomad OTH

AF:

0.00144

GnomAD3 exomes

AF:

0.000315

AC:

AN:

247704

Hom.:

AF XY:

0.000201

AC XY:

AN XY:

134060

show subpopulations

Gnomad AFR exome

AF:

0.00421

Gnomad AMR exome

AF:

0.000323

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:

0.000123

AC:

179

AN:

1460296

Hom.:

Cov.:

AF XY:

0.0000977

AC XY:

AN XY:

726358

show subpopulations

Gnomad4 AFR exome

AF:

0.00448

Gnomad4 AMR exome

AF:

0.000315

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:

0.00000180

Gnomad4 OTH exome

AF:

0.000215

GnomAD4 genome

AF:

0.00120

AC:

183

AN:

152102

Hom.:

Cov.:

AF XY:

0.000968

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.00429

Gnomad4 AMR

AF:

0.0000656

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.000129

Hom.:

Bravo

AF:

0.00142

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:5

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Benign:2

Benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Sep 28, 2015	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	May 21, 2012	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Retinal dystrophy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Blueprint Genetics

Dec 28, 2018

- -

Late-infantile neuronal ceroid lipofuscinosis

Benign:1

Likely benign, no assertion criteria provided

clinical testing

Natera, Inc.

Dec 16, 2019

- -

Neuronal ceroid lipofuscinosis 7

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 30, 2024

- -

MFSD8-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Aug 27, 2024

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

BayesDel_noAF

Benign

-0.83

CADD

Benign

1.7

DANN

Benign

0.47

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.0

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0017

dbscSNV1_RF

Benign

0.086

SpliceAI score (max)

0.11

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