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rs375086772

Variant summary

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

The NM_014254.3(RXYLT1):c.56T>C(p.Phe19Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000112 in 1,608,568 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

RXYLT1
NM_014254.3 missense

Scores

2
5
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.11
Variant links:
Genes affected
RXYLT1 (HGNC:13530): (ribitol xylosyltransferase 1) This gene encodes a type II transmembrane protein that is thought to have glycosyltransferase function. Mutations in this gene result in cobblestone lissencephaly. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, May 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

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 UniProt
RXYLT1NM_014254.3 linkuse as main transcriptc.56T>C p.Phe19Ser missense_variant 1/6 ENST00000261234.11
RXYLT1XM_047428079.1 linkuse as main transcriptc.56T>C p.Phe19Ser missense_variant 1/5
RXYLT1NM_001278237.2 linkuse as main transcriptc.-1058T>C 5_prime_UTR_variant 1/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RXYLT1ENST00000261234.11 linkuse as main transcriptc.56T>C p.Phe19Ser missense_variant 1/61 NM_014254.3 P1
ENST00000509615.2 linkuse as main transcriptn.238+15465A>G intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000658
AC:
10
AN:
151894
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000242
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
GnomAD3 exomes
AF:
0.0000162
AC:
4
AN:
247404
Hom.:
0
AF XY:
0.0000224
AC XY:
3
AN XY:
134180
show subpopulations
Gnomad AFR exome
AF:
0.000257
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:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000549
AC:
8
AN:
1456674
Hom.:
0
Cov.:
31
AF XY:
0.00000414
AC XY:
3
AN XY:
724986
show subpopulations
Gnomad4 AFR exome
AF:
0.000243
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000658
AC:
10
AN:
151894
Hom.:
0
Cov.:
32
AF XY:
0.0000944
AC XY:
7
AN XY:
74176
show subpopulations
Gnomad4 AFR
AF:
0.000242
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000340
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeJun 21, 2022This sequence change replaces phenylalanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 19 of the RXYLT1 protein (p.Phe19Ser). This variant is present in population databases (rs375086772, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with RXYLT1-related conditions. ClinVar contains an entry for this variant (Variation ID: 540606). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.83
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.31
Cadd
Pathogenic
26
Dann
Uncertain
1.0
DEOGEN2
Benign
0.065
T
Eigen
Benign
0.16
Eigen_PC
Benign
0.10
FATHMM_MKL
Benign
0.66
D
LIST_S2
Benign
0.85
D
M_CAP
Uncertain
0.19
D
MetaRNN
Uncertain
0.54
D
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.85
D
PROVEAN
Benign
-2.3
N
REVEL
Benign
0.21
Sift
Uncertain
0.0040
D
Sift4G
Uncertain
0.013
D
Polyphen
0.91
P
Vest4
0.73
MVP
0.13
MPC
3.0
ClinPred
0.48
T
GERP RS
2.2
Varity_R
0.52
gMVP
0.68

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs375086772; hg19: chr12-64173796; API