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GeneBe

rs145006535

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_006416.5(SLC35A1):c.133A>C(p.Thr45Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,614,110 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T45A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

SLC35A1
NM_006416.5 missense

Scores

8
7
3

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.49
Variant links:
Genes affected
SLC35A1 (HGNC:11021): (solute carrier family 35 member A1) The protein encoded by this gene is found in the membrane of the Golgi apparatus, where it transports nucleotide sugars into the Golgi. One such nucleotide sugar is CMP-sialic acid, which is imported into the Golgi by the encoded protein and subsequently glycosylated. Defects in this gene are a cause of congenital disorder of glycosylation type 2F (CDG2F). Two transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Dec 2009]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.795

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC35A1NM_006416.5 linkuse as main transcriptc.133A>C p.Thr45Pro missense_variant 2/8 ENST00000369552.9
SLC35A1NM_001168398.2 linkuse as main transcriptc.133A>C p.Thr45Pro missense_variant 2/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC35A1ENST00000369552.9 linkuse as main transcriptc.133A>C p.Thr45Pro missense_variant 2/81 NM_006416.5 P1P78382-1
SLC35A1ENST00000369556.7 linkuse as main transcriptc.133A>C p.Thr45Pro missense_variant 2/71 P78382-2
SLC35A1ENST00000369557.9 linkuse as main transcriptc.133A>C p.Thr45Pro missense_variant 2/62
SLC35A1ENST00000464978.5 linkuse as main transcriptn.208A>C non_coding_transcript_exon_variant 2/72

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152176
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251454
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135904
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000130
AC:
19
AN:
1461816
Hom.:
0
Cov.:
31
AF XY:
0.0000124
AC XY:
9
AN XY:
727212
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:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152294
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
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:
0.0000330
AC:
4

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.52
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Pathogenic
0.19
Cadd
Uncertain
24
Dann
Uncertain
1.0
Eigen
Pathogenic
0.88
Eigen_PC
Pathogenic
0.83
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
D;D;D;D
M_CAP
Benign
0.049
D
MetaRNN
Pathogenic
0.80
D;D;D;D
MetaSVM
Benign
-0.29
T
MutationAssessor
Pathogenic
3.1
M;.;M;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.64
T
PROVEAN
Uncertain
-4.2
D;D;D;.
REVEL
Pathogenic
0.74
Sift
Uncertain
0.0030
D;D;D;.
Sift4G
Uncertain
0.0070
D;D;D;D
Polyphen
1.0
.;.;D;.
Vest4
0.68
MutPred
0.72
Loss of glycosylation at S44 (P = 0.1067);Loss of glycosylation at S44 (P = 0.1067);Loss of glycosylation at S44 (P = 0.1067);.;
MVP
0.79
MPC
0.46
ClinPred
0.95
D
GERP RS
5.6
Varity_R
0.90
gMVP
0.77

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: rs145006535; hg19: chr6-88187196; API