21-43734131-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_003681.5(PDXK):​c.142+8G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000123 in 1,613,412 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00070 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000063 ( 1 hom. )

Consequence

PDXK
NM_003681.5 splice_region, intron

Scores

2
Splicing: ADA: 0.00001434
2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -1.86
Variant links:
Genes affected
PDXK (HGNC:8819): (pyridoxal kinase) The protein encoded by this gene phosphorylates vitamin B6, a step required for the conversion of vitamin B6 to pyridoxal-5-phosphate, an important cofactor in intermediary metabolism. The encoded protein is cytoplasmic and probably acts as a homodimer. Alternatively spliced transcript variants have been described, but their biological validity has not been determined. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 21-43734131-G-A is Benign according to our data. Variant chr21-43734131-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3352682.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PDXKNM_003681.5 linkuse as main transcriptc.142+8G>A splice_region_variant, intron_variant ENST00000291565.9 NP_003672.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PDXKENST00000291565.9 linkuse as main transcriptc.142+8G>A splice_region_variant, intron_variant 1 NM_003681.5 ENSP00000291565.4 O00764-1

Frequencies

GnomAD3 genomes
AF:
0.000703
AC:
107
AN:
152244
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00246
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.00
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000163
AC:
41
AN:
251278
Hom.:
0
AF XY:
0.000140
AC XY:
19
AN XY:
135862
show subpopulations
Gnomad AFR exome
AF:
0.00191
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000630
AC:
92
AN:
1461050
Hom.:
1
Cov.:
31
AF XY:
0.0000523
AC XY:
38
AN XY:
726886
show subpopulations
Gnomad4 AFR exome
AF:
0.00197
Gnomad4 AMR exome
AF:
0.000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.0000994
GnomAD4 genome
AF:
0.000702
AC:
107
AN:
152362
Hom.:
1
Cov.:
33
AF XY:
0.000765
AC XY:
57
AN XY:
74512
show subpopulations
Gnomad4 AFR
AF:
0.00245
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.000617
Hom.:
0
Bravo
AF:
0.000771

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

PDXK-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 23, 2024This 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
-0.89
CADD
Benign
0.49
DANN
Benign
0.82
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000014
dbscSNV1_RF
Benign
0.0
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: rs146695523; hg19: chr21-45154012; API