6-148953948-C-T

Position:

• chr6-148953948-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_005715.3(UST):​c.524C>T​(p.Ser175Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000138 in 1,448,564 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: UST NM_005715.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.43

Genes affected

UST (HGNC:17223): (uronyl 2-sulfotransferase) Uronyl 2-sulfotransferase transfers sulfate to the 2-position of uronyl residues, such as iduronyl residues in dermatan sulfate and glucuronyl residues in chondroitin sulfate (Kobayashi et al., 1999 [PubMed 10187838]).[supplied by OMIM, Mar 2008]

UST (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
UST	NM_005715.3	c.524C>T	p.Ser175Leu	missense_variant	4/8	ENST00000367463.5	NP_005706.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
UST	ENST00000367463.5	c.524C>T	p.Ser175Leu	missense_variant	4/8	1	NM_005715.3	ENSP00000356433.4
UST	ENST00000473631.1	n.42C>T		non_coding_transcript_exon_variant	1/3	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000138 AC: 2 AN: 1448564 Hom.: 0 Cov.: 29 AF XY: 0.00000139 AC XY: 1 AN XY: 720646

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: 0.00000181

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 05, 2023

The c.524C>T (p.S175L) alteration is located in exon 4 (coding exon 4) of the UST gene. This alteration results from a C to T substitution at nucleotide position 524, causing the serine (S) at amino acid position 175 to be replaced by a leucine (L). 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	0.32
BayesDel_addAF	Pathogenic	0.34	D
BayesDel_noAF	Pathogenic	0.26
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.53	D
Eigen	Uncertain	0.31
Eigen_PC	Uncertain	0.44
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.016	T
MetaRNN	Uncertain	0.73	D
MetaSVM	Benign	-0.64	T
MutationAssessor	Uncertain	2.5	M
PrimateAI	Uncertain	0.76	T
PROVEAN	Uncertain	-3.1	D
REVEL	Uncertain	0.49
Sift	Benign	0.063	T
Sift4G	Benign	0.13	T
Polyphen		0.42	B
Vest4		0.70
MutPred		0.71		Loss of glycosylation at S175 (P = 0.0669);
MVP		0.88
MPC		0.38
ClinPred		0.98	D
GERP RS		6.1
Varity_R		0.20
gMVP		0.66

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-149275084;