3-38365686-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_005108.4(XYLB):​c.457G>A​(p.Val153Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,546 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

XYLB
NM_005108.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.72
Variant links:
Genes affected
XYLB (HGNC:12839): (xylulokinase) The protein encoded by this gene shares 22% sequence identity with Hemophilus influenzae xylulokinase, and even higher identity to other gene products in C.elegans (45%) and yeast (31-35%), which are thought to belong to a family of enzymes that include fucokinase, gluconokinase, glycerokinase and xylulokinase. These proteins play important roles in energy metabolism. [provided by RefSeq, Aug 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.28901085).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
XYLBNM_005108.4 linkuse as main transcriptc.457G>A p.Val153Met missense_variant 6/19 ENST00000207870.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
XYLBENST00000207870.8 linkuse as main transcriptc.457G>A p.Val153Met missense_variant 6/191 NM_005108.4 P1O75191-1
XYLBENST00000650590.1 linkuse as main transcriptc.376G>A p.Val126Met missense_variant 5/18
XYLBENST00000649234.1 linkuse as main transcriptc.457G>A p.Val153Met missense_variant, NMD_transcript_variant 6/20
XYLBENST00000424034.5 linkuse as main transcriptc.*120G>A 3_prime_UTR_variant, NMD_transcript_variant 4/172

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461546
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727094
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 10, 2024The c.457G>A (p.V153M) alteration is located in exon 6 (coding exon 6) of the XYLB gene. This alteration results from a G to A substitution at nucleotide position 457, causing the valine (V) at amino acid position 153 to be replaced by a methionine (M). 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
0.12
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
16
DANN
Uncertain
1.0
DEOGEN2
Benign
0.050
T;.
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.47
FATHMM_MKL
Benign
0.65
D
LIST_S2
Benign
0.78
T;T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.29
T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Uncertain
2.3
M;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-2.2
N;.
REVEL
Benign
0.11
Sift
Benign
0.049
D;.
Sift4G
Uncertain
0.031
D;.
Polyphen
0.063
B;.
Vest4
0.17
MutPred
0.62
Gain of disorder (P = 0.0665);.;
MVP
0.46
MPC
0.11
ClinPred
0.64
D
GERP RS
0.88
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.29
gMVP
0.43

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-38407177; API