2-24017520-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001346880.2(MFSD2B):​c.613G>A​(p.Gly205Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000105 in 1,584,054 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

MFSD2B
NM_001346880.2 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.00600
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.028918624).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MFSD2BNM_001346880.2 linkuse as main transcriptc.613G>A p.Gly205Ser missense_variant 6/14 ENST00000338315.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MFSD2BENST00000338315.6 linkuse as main transcriptc.613G>A p.Gly205Ser missense_variant 6/145 NM_001346880.2 P2

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152084
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000555
AC:
11
AN:
198156
Hom.:
0
AF XY:
0.0000654
AC XY:
7
AN XY:
106980
show subpopulations
Gnomad AFR exome
AF:
0.0000894
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:
0.000117
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000110
AC:
158
AN:
1431852
Hom.:
0
Cov.:
32
AF XY:
0.000107
AC XY:
76
AN XY:
709402
show subpopulations
Gnomad4 AFR exome
AF:
0.0000607
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000366
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000134
Gnomad4 OTH exome
AF:
0.000101
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152202
Hom.:
0
Cov.:
33
AF XY:
0.0000806
AC XY:
6
AN XY:
74406
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000883
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000563
Hom.:
0
Bravo
AF:
0.0000491
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000481
AC:
4
ExAC
AF:
0.0000667
AC:
8

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 12, 2023The c.613G>A (p.G205S) alteration is located in exon 6 (coding exon 6) of the MFSD2B gene. This alteration results from a G to A substitution at nucleotide position 613, causing the glycine (G) at amino acid position 205 to be replaced by a serine (S). 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
Benign
0.082
BayesDel_addAF
Benign
-0.52
T
BayesDel_noAF
Benign
-0.77
CADD
Benign
0.82
DANN
Benign
0.37
DEOGEN2
Benign
0.11
.;T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.046
N
LIST_S2
Benign
0.72
T;T
M_CAP
Benign
0.0065
T
MetaRNN
Benign
0.029
T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
-0.20
.;N
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.36
N;N
REVEL
Benign
0.011
Sift
Benign
0.94
T;T
Sift4G
Benign
0.96
T;T
Polyphen
0.10
.;B
Vest4
0.16
MVP
0.030
MPC
0.097
ClinPred
0.0059
T
GERP RS
0.22
Varity_R
0.031
gMVP
0.22

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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.

Other links and lift over

dbSNP: rs200479309; hg19: chr2-24240390; COSMIC: COSV105237335; API