12-63809032-G-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 2P and 11B. PM2BP4_ModerateBP6_Very_StrongBP7

The NM_014254.3(RXYLT1):​c.1272G>A​(p.Glu424=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000105 in 1,582,980 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

RXYLT1
NM_014254.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.28
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-AS1 (HGNC:48910): (RXYLT1 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.43).
BP6
Variant 12-63809032-G-A is Benign according to our data. Variant chr12-63809032-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 473412.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.28 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RXYLT1NM_014254.3 linkuse as main transcriptc.1272G>A p.Glu424= synonymous_variant 6/6 ENST00000261234.11 NP_055069.1
RXYLT1-AS1NR_126167.1 linkuse as main transcriptn.468-92C>T intron_variant, non_coding_transcript_variant
RXYLT1NM_001278237.2 linkuse as main transcriptc.492G>A p.Glu164= synonymous_variant 6/6 NP_001265166.1
RXYLT1XM_047428078.1 linkuse as main transcriptc.963G>A p.Glu321= synonymous_variant 5/5 XP_047284034.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RXYLT1ENST00000261234.11 linkuse as main transcriptc.1272G>A p.Glu424= synonymous_variant 6/61 NM_014254.3 ENSP00000261234 P1
RXYLT1-AS1ENST00000546214.1 linkuse as main transcriptn.468-92C>T intron_variant, non_coding_transcript_variant 4

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152168
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.000206
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000762
AC:
17
AN:
223174
Hom.:
0
AF XY:
0.0000902
AC XY:
11
AN XY:
121928
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000151
Gnomad OTH exome
AF:
0.000186
GnomAD4 exome
AF:
0.000106
AC:
151
AN:
1430812
Hom.:
0
Cov.:
29
AF XY:
0.000107
AC XY:
76
AN XY:
711754
show subpopulations
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:
0.000134
Gnomad4 OTH exome
AF:
0.0000507
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152168
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000206
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000251
Hom.:
0
Bravo
AF:
0.000110

ClinVar

Significance: Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMay 01, 2022RXYLT1: BP4, BP7 -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 25, 2024- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxJan 18, 2018This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
RXYLT1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesNov 07, 2022This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.43
CADD
Benign
3.6
DANN
Benign
0.58

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs536862073; hg19: chr12-64202812; API