12-63780044-C-T

Variant summary

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

The NM_014254.3(RXYLT1):​c.84C>T​(p.Phe28=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000753 in 1,607,322 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 0.00019 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000063 ( 0 hom. )

Consequence

RXYLT1
NM_014254.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.0830
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 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=-0.38).
BP6
Variant 12-63780044-C-T is Benign according to our data. Variant chr12-63780044-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 514826.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.083 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RXYLT1NM_014254.3 linkuse as main transcriptc.84C>T p.Phe28= synonymous_variant 1/6 ENST00000261234.11 NP_055069.1
RXYLT1XM_047428079.1 linkuse as main transcriptc.84C>T p.Phe28= synonymous_variant 1/5 XP_047284035.1
RXYLT1NM_001278237.2 linkuse as main transcriptc.-1030C>T 5_prime_UTR_variant 1/6 NP_001265166.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RXYLT1ENST00000261234.11 linkuse as main transcriptc.84C>T p.Phe28= synonymous_variant 1/61 NM_014254.3 ENSP00000261234 P1
ENST00000509615.2 linkuse as main transcriptn.238+15437G>A intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.000191
AC:
29
AN:
152136
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000531
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000112
AC:
27
AN:
241796
Hom.:
0
AF XY:
0.000106
AC XY:
14
AN XY:
131742
show subpopulations
Gnomad AFR exome
AF:
0.000135
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000730
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000824
Gnomad OTH exome
AF:
0.000338
GnomAD4 exome
AF:
0.0000632
AC:
92
AN:
1455078
Hom.:
0
Cov.:
31
AF XY:
0.0000677
AC XY:
49
AN XY:
724162
show subpopulations
Gnomad4 AFR exome
AF:
0.000275
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000356
Gnomad4 SAS exome
AF:
0.000186
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000387
Gnomad4 OTH exome
AF:
0.000166
GnomAD4 genome
AF:
0.000190
AC:
29
AN:
152244
Hom.:
0
Cov.:
32
AF XY:
0.000175
AC XY:
13
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.000529
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000194
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000285
Hom.:
0
Bravo
AF:
0.000128
Asia WGS
AF:
0.00173
AC:
6
AN:
3474

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxJan 23, 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 SciencesOct 28, 2019This 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). -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 28, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.38
CADD
Benign
7.1
DANN
Benign
0.97

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: rs200123669; hg19: chr12-64173824; COSMIC: COSV54168148; COSMIC: COSV54168148; API