Genetic Variant MFSD6L:p.Trp575Gly (chr17-8797398-A-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_152599.4(MFSD6L):c.1723T>G(p.Trp575Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000464 in 1,594,708 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

MFSD6L
NM_152599.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.90

Variant links:

Genes affected

MFSD6L (HGNC:26656): (major facilitator superfamily domain containing 6 like) Predicted to be integral component of membrane. Predicted to be active in membrane. [provided by Alliance of Genome Resources, Apr 2022]

MFSD6L links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MFSD6L	NM_152599.4 link	c.1723T>G	p.Trp575Gly	missense_variant	Exon 1 of 1	ENST00000329805.6	NP_689812.3	Q8IWD5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MFSD6L	ENST00000329805.6 link	c.1723T>G	p.Trp575Gly	missense_variant	Exon 1 of 1	6	NM_152599.4	ENSP00000330051.4		Q8IWD5

Frequencies

GnomAD3 genomes

AF:

0.000138

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000410

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.00

GnomAD3 exomes

AF:

0.0000600

AC:

AN:

233188

Hom.:

AF XY:

0.0000478

AC XY:

AN XY:

125546

show subpopulations

Gnomad AFR exome

AF:

0.000870

Gnomad AMR exome

AF:

0.00

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:

0.0000374

AC:

AN:

1442406

Hom.:

Cov.:

AF XY:

0.0000377

AC XY:

AN XY:

716306

show subpopulations

Gnomad4 AFR exome

AF:

0.000730

Gnomad4 AMR exome

AF:

0.00

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:

0.0000209

Gnomad4 OTH exome

AF:

0.000101

GnomAD4 genome

AF:

0.000131

AC:

AN:

152302

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74480

show subpopulations

Gnomad4 AFR

AF:

0.000385

Gnomad4 AMR

AF:

0.000196

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:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.000132

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 30, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1723T>G (p.W575G) alteration is located in exon 1 (coding exon 1) of the MFSD6L gene. This alteration results from a T to G substitution at nucleotide position 1723, causing the tryptophan (W) at amino acid position 575 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.37

BayesDel_addAF

Benign

-0.0018

BayesDel_noAF

Pathogenic

0.15

CADD

Pathogenic

DANN

Uncertain

0.98

DEOGEN2

Benign

0.25

Eigen

Pathogenic

0.70

Eigen_PC

Pathogenic

0.67

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.60

M_CAP

Uncertain

0.23

MetaRNN

Uncertain

0.60

MetaSVM

Pathogenic

0.82

MutationAssessor

Uncertain

2.9

PrimateAI

Uncertain

0.50

PROVEAN

Pathogenic

-5.6

REVEL

Pathogenic

0.82

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.72

MutPred

0.44

Loss of stability (P = 0.027);

MVP

0.60

MPC

0.74

ClinPred

0.59

GERP RS

5.0

Varity_R

0.85

gMVP

0.53

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