chr6-44255302-A-G
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_178148.4(SLC35B2):c.703T>C(p.Tyr235His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000062 ( 0 hom. )
Consequence
SLC35B2
NM_178148.4 missense
NM_178148.4 missense
Scores
8
5
1
Clinical Significance
Conservation
PhyloP100: 9.31
Genes affected
SLC35B2 (HGNC:16872): (solute carrier family 35 member B2) Sulfotransferases (e.g., SULT4A1; MIM 608359) use an activated form of sulfate, 3-prime-phosphoadenosine 5-prime-phosphosulfate (PAPS), as a common sulfate donor for sulfation of glycoproteins, proteoglycans, and glycolipids in the endoplasmic reticulum and Golgi apparatus. SLC35B2 is located in the microsomal membrane and transports PAPS from the cytosol, where it is synthesized, into the Golgi lumen (Kamiyama et al., 2003 [PubMed 12716889]).[supplied by OMIM, Mar 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.983
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SLC35B2 | NM_178148.4 | c.703T>C | p.Tyr235His | missense_variant | 4/4 | ENST00000393812.4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SLC35B2 | ENST00000393812.4 | c.703T>C | p.Tyr235His | missense_variant | 4/4 | 1 | NM_178148.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome AF: 0.00000616 AC: 9AN: 1461894Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3AN XY: 727248
GnomAD4 exome
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AC:
9
AN:
1461894
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Cov.:
32
AF XY:
AC XY:
3
AN XY:
727248
Gnomad4 AFR exome
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GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
Alfa
AF:
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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 submitter | clinical testing | Ambry Genetics | Feb 06, 2024 | The c.703T>C (p.Y235H) alteration is located in exon 4 (coding exon 4) of the SLC35B2 gene. This alteration results from a T to C substitution at nucleotide position 703, causing the tyrosine (Y) at amino acid position 235 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Pathogenic
Dann
Uncertain
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D;D;.;D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D;D;D;D
MetaSVM
Uncertain
D
MutationTaster
Benign
D;D;D;D
PrimateAI
Uncertain
T
Sift4G
Pathogenic
D;D;D;D;D
Polyphen
1.0
.;.;.;.;D
Vest4
MutPred
0.96
.;.;.;.;Gain of disorder (P = 0.023);
MVP
MPC
0.65
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at