Genetic Variant MFSD2B:p.Pro4Leu (chr2-24010107-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001346880.2(MFSD2B):c.11C>T(p.Pro4Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000254 in 1,457,428 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

MFSD2B
NM_001346880.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.08

Publications

0 publications found

Variant links:

Genes affected

MFSD2B (HGNC:37207): (MFSD2 lysolipid transporter B, sphingolipid) Enables sphingolipid transporter activity. Involved in lipid transport. Is integral component of plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

MFSD2B links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.006886363).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001346880.2. 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
	MFSD2B	NM_001346880.2	MANE Select	c.11C>T	p.Pro4Leu	missense	Exon 1 of 14	NP_001333809.1	A6NFX1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MFSD2B	ENST00000338315.6	TSL:5 MANE Select	c.11C>T	p.Pro4Leu	missense	Exon 1 of 14	ENSP00000342501.4	A6NFX1
MFSD2B	ENST00000669179.1		c.11C>T	p.Pro4Leu	missense	Exon 1 of 15	ENSP00000499689.1	A0A590UK14
MFSD2B	ENST00000406420.7	TSL:5	c.11C>T	p.Pro4Leu	missense	Exon 1 of 13	ENSP00000385527.3	A0A2I3JL00

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152226

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:

0.00212

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000139

AC:

AN:

64852

AF XY:

0.000109

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000683

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00324

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000199

AC:

AN:

1305094

Hom.:

Cov.:

AF XY:

0.0000171

AC XY:

AN XY:

641682

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26402

American (AMR)

AF:

0.0000388

AC:

AN:

25780

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

22010

East Asian (EAS)

AF:

0.000670

AC:

AN:

28340

South Asian (SAS)

AF:

0.00

AC:

AN:

69092

European-Finnish (FIN)

AF:

0.00

AC:

AN:

32072

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3820

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1043256

Other (OTH)

AF:

0.000110

AC:

AN:

54322

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.465

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:

0.0000722

AC:

AN:

152334

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74484

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41580

American (AMR)

AF:

0.00

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00213

AC:

AN:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.507

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.000159

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.59

BayesDel_noAF

Benign

-0.63

CADD

Benign

(source)

DANN

Benign

0.80

DEOGEN2

Benign

0.0066

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.54

M_CAP

Benign

0.011

MetaRNN

Benign

0.0069

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.34

PhyloP100

1.1

PrimateAI

Uncertain

0.60

PROVEAN

Benign

-0.81

REVEL

Benign

0.019

Sift

Benign

0.18

Sift4G

Benign

0.36

Polyphen

0.020

Vest4

0.18

MutPred

0.18

Loss of glycosylation at P4 (P = 0.0065)

MVP

0.085

MPC

0.061

ClinPred

0.026

GERP RS

1.8

PromoterAI

0.45

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.036

gMVP

0.29

Mutation Taster

=100/0

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over