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GeneBe

1-205663028-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.763G>A​(p.Ala255Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000932 in 1,609,784 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
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: -0.555
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]

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=0.056013137).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC45A3NM_033102.3 linkuse as main transcriptc.763G>A p.Ala255Thr missense_variant 3/5 ENST00000367145.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC45A3ENST00000367145.4 linkuse as main transcriptc.763G>A p.Ala255Thr missense_variant 3/51 NM_033102.3 P1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152040
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000194
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000164
AC:
4
AN:
244282
Hom.:
0
AF XY:
0.00000752
AC XY:
1
AN XY:
132986
show subpopulations
Gnomad AFR exome
AF:
0.0000662
Gnomad AMR exome
AF:
0.0000292
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:
0.0000182
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000960
AC:
14
AN:
1457744
Hom.:
0
Cov.:
32
AF XY:
0.0000110
AC XY:
8
AN XY:
724710
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000225
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000202
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152040
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74256
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000194
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113
ExAC
AF:
0.00000826
AC:
1

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 GeneticsJan 31, 2022The c.763G>A (p.A255T) alteration is located in exon 3 (coding exon 2) of the SLC45A3 gene. This alteration results from a G to A substitution at nucleotide position 763, causing the alanine (A) at amino acid position 255 to be replaced by a threonine (T). 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
0.071
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.59
CADD
Benign
8.8
DANN
Benign
0.95
DEOGEN2
Benign
0.089
T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.17
N
LIST_S2
Benign
0.69
T
M_CAP
Benign
0.048
D
MetaRNN
Benign
0.056
T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
-0.41
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.37
T
PROVEAN
Benign
0.010
N
REVEL
Benign
0.082
Sift
Benign
0.60
T
Sift4G
Benign
0.68
T
Polyphen
0.0010
B
Vest4
0.029
MVP
0.42
MPC
0.34
ClinPred
0.025
T
GERP RS
-0.33
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.033
gMVP
0.19

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: rs777513989; hg19: chr1-205632156; COSMIC: COSV65654697; COSMIC: COSV65654697; API