12-63780044-C-A

Variant summary

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

The NM_014254.3(RXYLT1):​c.84C>A​(p.Phe28Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000498 in 1,607,322 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

RXYLT1
NM_014254.3 missense

Scores

2
3
13

Clinical Significance

Not reported in ClinVar

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]

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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 Protein UniProt
RXYLT1NM_014254.3 linkuse as main transcriptc.84C>A p.Phe28Leu missense_variant 1/6 ENST00000261234.11 NP_055069.1
RXYLT1XM_047428079.1 linkuse as main transcriptc.84C>A p.Phe28Leu missense_variant 1/5 XP_047284035.1
RXYLT1NM_001278237.2 linkuse as main transcriptc.-1030C>A 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>A p.Phe28Leu missense_variant 1/61 NM_014254.3 ENSP00000261234 P1
ENST00000509615.2 linkuse as main transcriptn.238+15437G>T intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152136
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:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000412
AC:
6
AN:
1455078
Hom.:
0
Cov.:
31
AF XY:
0.00000414
AC XY:
3
AN XY:
724162
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000255
Gnomad4 SAS exome
AF:
0.0000581
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152244
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000194
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.87
BayesDel_addAF
Benign
-0.085
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
16
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0081
T
Eigen
Benign
-0.12
Eigen_PC
Benign
-0.23
FATHMM_MKL
Benign
0.45
N
LIST_S2
Benign
0.75
T
M_CAP
Uncertain
0.13
D
MetaRNN
Uncertain
0.66
D
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.88
D
PROVEAN
Benign
-1.1
N
REVEL
Benign
0.22
Sift
Benign
0.23
T
Sift4G
Benign
0.36
T
Polyphen
1.0
D
Vest4
0.63
MutPred
0.49
Gain of catalytic residue at A23 (P = 0.0022);
MVP
0.067
MPC
2.5
ClinPred
0.97
D
GERP RS
-0.85
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.16
gMVP
0.31

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; API