5-33944674-C-T
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Variant summary
Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4
The NM_016180.5(SLC45A2):c.1567G>A(p.Ala523Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000304 in 1,614,000 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000032 ( 0 hom. )
Consequence
SLC45A2
NM_016180.5 missense
NM_016180.5 missense
Scores
2
5
12
Clinical Significance
Conservation
PhyloP100: 5.84
Genes affected
SLC45A2 (HGNC:16472): (solute carrier family 45 member 2) This gene encodes a transporter protein that mediates melanin synthesis. The protein is expressed in a high percentage of melanoma cell lines. Mutations in this gene are a cause of oculocutaneous albinism type 4, and polymorphisms in this gene are associated with variations in skin and hair color. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -1 ACMG points.
BP4
Computational evidence support a benign effect (MetaRNN=0.41493183).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SLC45A2 | NM_016180.5 | c.1567G>A | p.Ala523Thr | missense_variant | 7/7 | ENST00000296589.9 | |
SLC45A2 | XM_047417259.1 | c.1327G>A | p.Ala443Thr | missense_variant | 7/7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SLC45A2 | ENST00000296589.9 | c.1567G>A | p.Ala523Thr | missense_variant | 7/7 | 1 | NM_016180.5 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152144Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.0000557 AC: 14AN: 251240Hom.: 0 AF XY: 0.0000589 AC XY: 8AN XY: 135804
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GnomAD4 exome AF: 0.0000322 AC: 47AN: 1461856Hom.: 0 Cov.: 32 AF XY: 0.0000330 AC XY: 24AN XY: 727220
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GnomAD4 genome AF: 0.0000131 AC: 2AN: 152144Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74318
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Uncertain:3
Uncertain significance, criteria provided, single submitter | not provided | Breakthrough Genomics, Breakthrough Genomics | - | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Oct 11, 2019 | In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 29345414) - |
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Aug 06, 2022 | This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 523 of the SLC45A2 protein (p.Ala523Thr). This variant is present in population databases (rs371334000, gnomAD 0.009%). This missense change has been observed in individual(s) with oculocutaneous albinism (PMID: 29345414). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 1318809). 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: "Possibly Damaging"; Align-GVGD: "Class C0"). 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. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Benign
T
Eigen
Uncertain
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Benign
D
M_CAP
Uncertain
D
MetaRNN
Benign
T
MetaSVM
Uncertain
D
MutationAssessor
Benign
L
MutationTaster
Benign
D;D
PrimateAI
Benign
T
PROVEAN
Benign
N
REVEL
Uncertain
Sift
Benign
T
Sift4G
Benign
T
Polyphen
D
Vest4
MVP
MPC
ClinPred
D
GERP RS
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