rs150417924

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_ModeratePP5_Moderate

The NM_022167.4(XYLT2):​c.1687C>T​(p.Arg563Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,610,342 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 Likely pathogenic (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

XYLT2
NM_022167.4 missense

Scores

6
10
3

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 1.74

Publications

0 publications found
Variant links:
Genes affected
XYLT2 (HGNC:15517): (xylosyltransferase 2) The protein encoded by this gene is an isoform of xylosyltransferase, which belongs to a family of glycosyltransferases. This enzyme transfers xylose from UDP-xylose to specific serine residues of the core protein and initiates the biosynthesis of glycosaminoglycan chains in proteoglycans including chondroitin sulfate, heparan sulfate, heparin and dermatan sulfate. The enzyme activity, which is increased in scleroderma patients, is a diagnostic marker for the determination of sclerotic activity in systemic sclerosis. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Dec 2013]
XYLT2 Gene-Disease associations (from GenCC):
  • spondylo-ocular syndrome
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.887
PP5
Variant 17-50356715-C-T is Pathogenic according to our data. Variant chr17-50356715-C-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 521122.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
XYLT2NM_022167.4 linkc.1687C>T p.Arg563Cys missense_variant Exon 8 of 11 ENST00000017003.7 NP_071450.2 Q9H1B5-1B4DT06
XYLT2XM_005257572.5 linkc.1591C>T p.Arg531Cys missense_variant Exon 8 of 11 XP_005257629.1
XYLT2XM_047436522.1 linkc.1096C>T p.Arg366Cys missense_variant Exon 8 of 11 XP_047292478.1
XYLT2NR_110010.2 linkn.1702C>T non_coding_transcript_exon_variant Exon 8 of 10

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
XYLT2ENST00000017003.7 linkc.1687C>T p.Arg563Cys missense_variant Exon 8 of 11 1 NM_022167.4 ENSP00000017003.2 Q9H1B5-1
XYLT2ENST00000376550.7 linkn.1687C>T non_coding_transcript_exon_variant Exon 8 of 10 1 ENSP00000365733.3 A0A0C4DFW8
XYLT2ENST00000507602.5 linkc.1687C>T p.Arg563Cys missense_variant Exon 8 of 10 2 ENSP00000426501.1 B4DT06
XYLT2ENST00000511654.1 linkn.283C>T non_coding_transcript_exon_variant Exon 2 of 4 3 ENSP00000428350.1 H0YB00

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152104
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000812
AC:
2
AN:
246384
AF XY:
0.00000749
show subpopulations
Gnomad AFR exome
AF:
0.000125
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000206
AC:
3
AN:
1458120
Hom.:
0
Cov.:
33
AF XY:
0.00000276
AC XY:
2
AN XY:
725438
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49784
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1111926
Other (OTH)
AF:
0.00
AC:
0
AN:
60362
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152222
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74392
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41534
American (AMR)
AF:
0.00
AC:
0
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5162
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68008
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Pathogenic:1
Feb 23, 2017
Ambry Genetics
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.58
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Uncertain
0.050
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.44
T;.
Eigen
Uncertain
0.29
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.97
D;D
M_CAP
Uncertain
0.16
D
MetaRNN
Pathogenic
0.89
D;D
MetaSVM
Benign
-0.46
T
MutationAssessor
Uncertain
2.5
M;.
PhyloP100
1.7
PrimateAI
Uncertain
0.69
T
PROVEAN
Pathogenic
-7.1
D;D
REVEL
Uncertain
0.46
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.95
MVP
0.54
MPC
1.5
ClinPred
0.97
D
GERP RS
3.9
PromoterAI
0.0090
Neutral
Varity_R
0.79
gMVP
0.93
Mutation Taster
=24/76
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs150417924; hg19: chr17-48434076; COSMIC: COSV99190981; COSMIC: COSV99190981; API