8-37775408-T-C

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1PM2PP3_StrongPP5

The NM_007198.4(PLPBP):ā€‹c.524T>Cā€‹(p.Leu175Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

PLPBP
NM_007198.4 missense

Scores

10
7
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 7.86
Variant links:
Genes affected
PLPBP (HGNC:9457): (pyridoxal phosphate binding protein) This gene encodes a pyridoxal 5'-phosphate binding protein involved in the homeostatic regulation of intracellular pyridoxal 5'-phosphate. This gene has a tumor suppressive effect on hepatocellular carcinoma and other solid tumors of epithelial origin. Naturally occurring mutations in this gene are associated with a pyridoxine-dependent epilepsy. [provided by RefSeq, Mar 2017]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

PM1
In a chain Pyridoxal phosphate homeostasis protein (size 274) in uniprot entity PLPHP_HUMAN there are 4 pathogenic changes around while only 1 benign (80%) in NM_007198.4
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.962
PP5
Variant 8-37775408-T-C is Pathogenic according to our data. Variant chr8-37775408-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 374853.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr8-37775408-T-C is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PLPBPNM_007198.4 linkuse as main transcriptc.524T>C p.Leu175Pro missense_variant 6/8 ENST00000328195.8 NP_009129.1
PLPBPNM_001349346.2 linkuse as main transcriptc.554T>C p.Leu185Pro missense_variant 6/8 NP_001336275.1
PLPBPNM_001349347.2 linkuse as main transcriptc.518T>C p.Leu173Pro missense_variant 6/8 NP_001336276.1
PLPBPNM_001349348.2 linkuse as main transcriptc.368T>C p.Leu123Pro missense_variant 6/8 NP_001336277.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PLPBPENST00000328195.8 linkuse as main transcriptc.524T>C p.Leu175Pro missense_variant 6/81 NM_007198.4 ENSP00000333551 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251490
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461886
Hom.:
0
Cov.:
30
AF XY:
0.00000413
AC XY:
3
AN XY:
727246
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:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Epilepsy, early-onset, vitamin B6-dependent Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMAug 14, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Pathogenic
0.31
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.55
D;.;T
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
D;D;D
M_CAP
Uncertain
0.25
D
MetaRNN
Pathogenic
0.96
D;D;D
MetaSVM
Uncertain
0.52
D
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.69
T
PROVEAN
Pathogenic
-6.8
D;D;D
REVEL
Pathogenic
0.86
Sift
Pathogenic
0.0
D;D;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.99
MutPred
0.84
Gain of catalytic residue at L175 (P = 0.0177);.;.;
MVP
0.85
MPC
1.5
ClinPred
1.0
D
GERP RS
5.7
Varity_R
0.99
gMVP
0.99

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: rs752753379; hg19: chr8-37632926; COSMIC: COSV60240477; COSMIC: COSV60240477; API