22-30636509-C-A

Variant summary

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

The NM_001001479.4(SLC35E4):​c.59C>A​(p.Ala20Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00015 in 1,542,020 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A20T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

SLC35E4
NM_001001479.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0210
Variant links:
Genes affected
SLC35E4 (HGNC:17058): (solute carrier family 35 member E4) Predicted to enable antiporter activity. Predicted to be involved in transmembrane transport. Predicted to be integral component of membrane. Predicted to be active in Golgi apparatus. [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=0.045434594).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC35E4NM_001001479.4 linkuse as main transcriptc.59C>A p.Ala20Glu missense_variant 1/2 ENST00000343605.5
SLC35E4NM_001318370.2 linkuse as main transcriptc.59C>A p.Ala20Glu missense_variant 1/3
SLC35E4NM_001318371.2 linkuse as main transcriptc.59C>A p.Ala20Glu missense_variant 1/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC35E4ENST00000343605.5 linkuse as main transcriptc.59C>A p.Ala20Glu missense_variant 1/21 NM_001001479.4 P1Q6ICL7-1
SLC35E4ENST00000406566.1 linkuse as main transcriptc.59C>A p.Ala20Glu missense_variant 1/31 Q6ICL7-2
SLC35E4ENST00000451479.1 linkuse as main transcript upstream_gene_variant 1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152222
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000105
AC:
16
AN:
151880
Hom.:
0
AF XY:
0.000110
AC XY:
9
AN XY:
81540
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:
0.00
Gnomad FIN exome
AF:
0.0000661
Gnomad NFE exome
AF:
0.000239
Gnomad OTH exome
AF:
0.000234
GnomAD4 exome
AF:
0.000161
AC:
224
AN:
1389798
Hom.:
0
Cov.:
30
AF XY:
0.000171
AC XY:
117
AN XY:
683922
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:
0.00
Gnomad4 FIN exome
AF:
0.000146
Gnomad4 NFE exome
AF:
0.000199
Gnomad4 OTH exome
AF:
0.0000523
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152222
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74364
show subpopulations
Gnomad4 AFR
AF:
0.0000482
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000670
Hom.:
0
Bravo
AF:
0.000132
ExAC
AF:
0.0000541
AC:
6

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 GeneticsDec 05, 2022The c.59C>A (p.A20E) alteration is located in exon 1 (coding exon 1) of the SLC35E4 gene. This alteration results from a C to A substitution at nucleotide position 59, causing the alanine (A) at amino acid position 20 to be replaced by a glutamic acid (E). 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
0.092
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
6.0
DANN
Benign
0.85
DEOGEN2
Benign
0.019
T;.
Eigen
Benign
-0.93
Eigen_PC
Benign
-0.94
FATHMM_MKL
Benign
0.083
N
LIST_S2
Benign
0.55
T;T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.045
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.4
L;L
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-0.51
N;N
REVEL
Benign
0.017
Sift
Benign
0.056
T;D
Sift4G
Uncertain
0.011
D;D
Polyphen
0.0
B;B
Vest4
0.18
MVP
0.030
MPC
0.43
ClinPred
0.048
T
GERP RS
2.0
Varity_R
0.074
gMVP
0.69

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: rs751840191; hg19: chr22-31032496; API