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GeneBe

1-205659259-C-T

Variant summary

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

The NM_033102.3(SLC45A3):​c.1637G>A​(p.Ser546Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000958 in 1,460,880 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: not found (cov: 32)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

SLC45A3
NM_033102.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.51
Variant links:
Genes affected
SLC45A3 (HGNC:8642): (solute carrier family 45 member 3) Predicted to enable sucrose:proton symporter activity. Predicted to be involved in positive regulation of small molecule metabolic process; regulation of oligodendrocyte differentiation; and sucrose transport. Predicted to be located in plasma membrane. Predicted to be active in membrane. [provided by Alliance of Genome Resources, Apr 2022]

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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=0.049823046).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC45A3NM_033102.3 linkuse as main transcriptc.1637G>A p.Ser546Asn missense_variant 5/5 ENST00000367145.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC45A3ENST00000367145.4 linkuse as main transcriptc.1637G>A p.Ser546Asn missense_variant 5/51 NM_033102.3 P1
SLC45A3ENST00000460934.1 linkuse as main transcriptn.1040G>A non_coding_transcript_exon_variant 3/31

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250124
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135112
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1460880
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
726640
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000108
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

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 GeneticsOct 12, 2021The c.1637G>A (p.S546N) alteration is located in exon 5 (coding exon 4) of the SLC45A3 gene. This alteration results from a G to A substitution at nucleotide position 1637, causing the serine (S) at amino acid position 546 to be replaced by an asparagine (N). 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
0.099
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.68
CADD
Benign
14
DANN
Benign
0.97
DEOGEN2
Benign
0.022
T
Eigen
Benign
-0.50
Eigen_PC
Benign
-0.34
FATHMM_MKL
Benign
0.40
N
LIST_S2
Benign
0.63
T
M_CAP
Benign
0.0075
T
MetaRNN
Benign
0.050
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.69
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-0.89
N
REVEL
Benign
0.025
Sift
Benign
0.34
T
Sift4G
Benign
0.36
T
Polyphen
0.0
B
Vest4
0.11
MutPred
0.19
Loss of glycosylation at S546 (P = 0.0302);
MVP
0.30
MPC
0.33
ClinPred
0.065
T
GERP RS
2.6
Varity_R
0.055
gMVP
0.40

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs774937348; hg19: chr1-205628387; API