8-144359385-G-C
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Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_001363118.2(SLC52A2):āc.92G>Cā(p.Trp31Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000031 in 1,613,952 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as not provided (no stars).
Frequency
Genomes: š 0.0000066 ( 0 hom., cov: 33)
Exomes š: 0.0000027 ( 0 hom. )
Consequence
SLC52A2
NM_001363118.2 missense
NM_001363118.2 missense
Scores
11
6
1
Clinical Significance
Conservation
PhyloP100: 6.11
Genes affected
SLC52A2 (HGNC:30224): (solute carrier family 52 member 2) This gene encodes a membrane protein which belongs to the riboflavin transporter family. In humans, riboflavin must be obtained by intestinal absorption because it cannot be synthesized by the body. The water-soluble vitamin riboflavin is processed to the coenzymes flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) which then act as intermediaries in many cellular metabolic reactions. Paralogous members of the riboflavin transporter gene family are located on chromosomes 17 and 20. Unlike other members of this family, this gene has higher expression in brain tissue than small intestine. Alternative splicing of this gene results in multiple transcript variants encoding the same protein. Mutations in this gene have been associated with Brown-Vialetto-Van Laere syndrome 2 - an autosomal recessive progressive neurologic disorder characterized by deafness, bulbar dysfunction, and axial and limb hypotonia. [provided by RefSeq, Jul 2012]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 4 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.933
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
SLC52A2 | NM_001363118.2 | c.92G>C | p.Trp31Ser | missense_variant | 2/5 | ENST00000643944.2 | NP_001350047.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
SLC52A2 | ENST00000643944.2 | c.92G>C | p.Trp31Ser | missense_variant | 2/5 | NM_001363118.2 | ENSP00000496184.2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152220Hom.: 0 Cov.: 33
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GnomAD4 exome AF: 0.00000274 AC: 4AN: 1461732Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 727184
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GnomAD4 genome AF: 0.00000657 AC: 1AN: 152220Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74370
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ClinVar
Significance: not provided
Submissions summary: Other:1
Revision: no classification provided
LINK: link
Submissions by phenotype
Brown-Vialetto-van Laere syndrome 2 Other:1
not provided, no classification provided | literature only | GeneReviews | - | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Uncertain
.;D;D;.;D;T;D;D;.;D
Eigen
Pathogenic
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
D
MutationAssessor
Pathogenic
.;M;M;.;M;.;M;M;.;M
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D;D;D;D;D;D;D;D;.
REVEL
Pathogenic
Sift
Pathogenic
D;D;D;D;D;D;D;D;D;.
Sift4G
Pathogenic
D;D;D;D;D;D;D;D;D;.
Polyphen
1.0
.;D;D;.;D;.;D;D;.;D
Vest4
0.94, 0.94, 0.84
MutPred
Loss of catalytic residue at W31 (P = 0.0824);Loss of catalytic residue at W31 (P = 0.0824);Loss of catalytic residue at W31 (P = 0.0824);Loss of catalytic residue at W31 (P = 0.0824);Loss of catalytic residue at W31 (P = 0.0824);Loss of catalytic residue at W31 (P = 0.0824);Loss of catalytic residue at W31 (P = 0.0824);Loss of catalytic residue at W31 (P = 0.0824);Loss of catalytic residue at W31 (P = 0.0824);Loss of catalytic residue at W31 (P = 0.0824);
MVP
MPC
0.69
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at