rs115076664

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 2P and 17B. PM2BP4_StrongBP6_Very_StrongBP7BS1

The NM_014254.3(RXYLT1):​c.825G>A​(p.Thr275=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000442 in 1,613,318 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0025 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00023 ( 0 hom. )

Consequence

RXYLT1
NM_014254.3 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -3.00
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 -15 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP6
Variant 12-63805315-G-A is Benign according to our data. Variant chr12-63805315-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 386581.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-63805315-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-3 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00248 (378/152276) while in subpopulation AFR AF= 0.00883 (367/41570). AF 95% confidence interval is 0.00808. There are 1 homozygotes in gnomad4. There are 164 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RXYLT1NM_014254.3 linkuse as main transcriptc.825G>A p.Thr275= synonymous_variant 5/6 ENST00000261234.11 NP_055069.1
RXYLT1NM_001278237.2 linkuse as main transcriptc.45G>A p.Thr15= synonymous_variant 5/6 NP_001265166.1
RXYLT1XM_047428078.1 linkuse as main transcriptc.516G>A p.Thr172= synonymous_variant 4/5 XP_047284034.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RXYLT1ENST00000261234.11 linkuse as main transcriptc.825G>A p.Thr275= synonymous_variant 5/61 NM_014254.3 ENSP00000261234 P1

Frequencies

GnomAD3 genomes
AF:
0.00247
AC:
376
AN:
152160
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00881
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
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:
0.0000147
Gnomad OTH
AF:
0.000958
GnomAD3 exomes
AF:
0.000591
AC:
148
AN:
250428
Hom.:
0
AF XY:
0.000451
AC XY:
61
AN XY:
135386
show subpopulations
Gnomad AFR exome
AF:
0.00870
Gnomad AMR exome
AF:
0.000146
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.000229
AC:
335
AN:
1461042
Hom.:
0
Cov.:
30
AF XY:
0.000201
AC XY:
146
AN XY:
726814
show subpopulations
Gnomad4 AFR exome
AF:
0.00856
Gnomad4 AMR exome
AF:
0.000247
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000135
Gnomad4 OTH exome
AF:
0.000365
GnomAD4 genome
AF:
0.00248
AC:
378
AN:
152276
Hom.:
1
Cov.:
32
AF XY:
0.00220
AC XY:
164
AN XY:
74468
show subpopulations
Gnomad4 AFR
AF:
0.00883
Gnomad4 AMR
AF:
0.000523
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000948
Alfa
AF:
0.00115
Hom.:
0
Bravo
AF:
0.00286
Asia WGS
AF:
0.000578
AC:
2
AN:
3476

ClinVar

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

Submissions by phenotype

not provided Benign:3
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJan 01, 2023RXYLT1: BP4, BP7 -
Likely benign, criteria provided, single submitterclinical testingGeneDxApr 25, 2021- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsJan 13, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
0.13
DANN
Benign
0.79

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: rs115076664; hg19: chr12-64199095; COSMIC: COSV99706891; COSMIC: COSV99706891; API