rs376486641

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_014254.3(RXYLT1):​c.113G>A​(p.Gly38Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000282 in 1,598,430 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. G38G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000028 ( 1 hom. )

Consequence

RXYLT1
NM_014254.3 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.0150

Publications

0 publications found
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]
RXYLT1 Gene-Disease associations (from GenCC):
  • muscle-eye-brain disease
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type a, 10
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp
  • muscular dystrophy-dystroglycanopathy, type A
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.029174536).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RXYLT1NM_014254.3 linkc.113G>A p.Gly38Glu missense_variant Exon 1 of 6 ENST00000261234.11 NP_055069.1
RXYLT1XM_047428079.1 linkc.113G>A p.Gly38Glu missense_variant Exon 1 of 5 XP_047284035.1
RXYLT1NM_001278237.2 linkc.-1001G>A 5_prime_UTR_variant Exon 1 of 6 NP_001265166.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RXYLT1ENST00000261234.11 linkc.113G>A p.Gly38Glu missense_variant Exon 1 of 6 1 NM_014254.3 ENSP00000261234.6

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
151882
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000452
AC:
10
AN:
221092
AF XY:
0.0000576
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.0000203
Gnomad OTH exome
AF:
0.000181
GnomAD4 exome
AF:
0.0000283
AC:
41
AN:
1446436
Hom.:
1
Cov.:
31
AF XY:
0.0000334
AC XY:
24
AN XY:
719578
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32506
American (AMR)
AF:
0.00
AC:
0
AN:
43678
Ashkenazi Jewish (ASJ)
AF:
0.0000387
AC:
1
AN:
25860
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39060
South Asian (SAS)
AF:
0.000269
AC:
23
AN:
85534
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
46652
Middle Eastern (MID)
AF:
0.000349
AC:
2
AN:
5730
European-Non Finnish (NFE)
AF:
0.0000135
AC:
15
AN:
1107592
Other (OTH)
AF:
0.00
AC:
0
AN:
59824
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.489
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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:
0.0000263
AC:
4
AN:
151994
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74334
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41342
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5156
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
67976
Other (OTH)
AF:
0.00
AC:
0
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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:
0.0000585
Hom.:
0
Bravo
AF:
0.0000189
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000117
AC:
1
ExAC
AF:
0.0000670
AC:
8

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Jun 01, 2021
CeGaT Center for Human Genetics Tuebingen
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jul 25, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 38 of the RXYLT1 protein (p.Gly38Glu). This variant is present in population databases (rs376486641, gnomAD 0.02%). 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: 473411). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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. -

Inborn genetic diseases Uncertain:1
Nov 10, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.113G>A (p.G38E) alteration is located in exon 1 (coding exon 1) of the TMEM5 gene. This alteration results from a G to A substitution at nucleotide position 113, causing the glycine (G) at amino acid position 38 to be replaced by a glutamic acid (E). 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
0.11
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
2.3
DANN
Benign
0.96
DEOGEN2
Benign
0.0016
T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.060
N
LIST_S2
Benign
0.57
T
M_CAP
Benign
0.0085
T
MetaRNN
Benign
0.029
T
MetaSVM
Benign
-0.99
T
PhyloP100
0.015
PrimateAI
Uncertain
0.73
T
PROVEAN
Benign
0.33
N
REVEL
Benign
0.0060
Sift
Benign
1.0
T
Sift4G
Benign
1.0
T
Polyphen
0.0010
B
Vest4
0.11
MVP
0.014
MPC
1.5
ClinPred
0.037
T
GERP RS
-0.86
PromoterAI
-0.012
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.028
gMVP
0.17
Mutation Taster
=97/3
polymorphism

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: rs376486641; hg19: chr12-64173853; API