1-39957115-T-G
Position:
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3
The NM_032793.5(MFSD2A):c.122T>G(p.Leu41Trp) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 32)
Consequence
MFSD2A
NM_032793.5 missense
NM_032793.5 missense
Scores
8
6
5
Clinical Significance
Conservation
PhyloP100: 4.79
Genes affected
MFSD2A (HGNC:25897): (MFSD2 lysolipid transporter A, lysophospholipid) The protein encoded by this gene is a transmembrane protein and sodium-dependent lysophosphatidylcholine transporter. The encoded protein is involved in the establishment of the blood-brain barrier and is required for brain growth and function. Defects in this gene are a cause of a progressive microcephaly syndrome. [provided by RefSeq, Mar 2017]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 3 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.782
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
MFSD2A | NM_032793.5 | c.122T>G | p.Leu41Trp | missense_variant | 2/14 | ENST00000372811.10 | NP_116182.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
MFSD2A | ENST00000372811.10 | c.122T>G | p.Leu41Trp | missense_variant | 2/14 | 1 | NM_032793.5 | ENSP00000361898 | P1 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 genomes
Cov.:
32
GnomAD4 exome Cov.: 31
GnomAD4 exome
Cov.:
31
GnomAD4 genome Cov.: 32
GnomAD4 genome
Cov.:
32
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain: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 | Apr 26, 2021 | 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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with MFSD2A-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces leucine with tryptophan at codon 41 of the MFSD2A protein (p.Leu41Trp). The leucine residue is highly conserved and there is a small physicochemical difference between leucine and tryptophan. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Benign
DEOGEN2
Benign
.;T;T
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T;T;T
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D;D
MetaSVM
Benign
T
MutationAssessor
Pathogenic
M;.;M
MutationTaster
Benign
D;D;D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D;D
REVEL
Uncertain
Sift
Pathogenic
D;D;D
Sift4G
Pathogenic
D;D;D
Polyphen
D;.;D
Vest4
MutPred
Gain of loop (P = 0.0166);.;Gain of loop (P = 0.0166);
MVP
MPC
1.8
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.