8-37762699-G-C

Position:

chr8-37762699-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_007198.4(PLPBP):c.40G>C(p.Gly14Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000245 in 1,591,164 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

PLPBP
NM_007198.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.16

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]

PLPBP links:

LOC124901934 (HGNC:):

LOC124901934 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 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;

BP4

Computational evidence support a benign effect (MetaRNN=0.19487166).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PLPBP	NM_007198.4 linkuse as main transcript	c.40G>C	p.Gly14Arg	missense_variant	1/8	ENST00000328195.8	NP_009129.1
LOC124901934	XR_007060889.1 linkuse as main transcript	n.453C>G		non_coding_transcript_exon_variant	2/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PLPBP	ENST00000328195.8 linkuse as main transcript	c.40G>C	p.Gly14Arg	missense_variant	1/8	1	NM_007198.4	ENSP00000333551	P1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152220

Hom.:

Cov.:

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000192

AC:

AN:

208338

Hom.:

AF XY:

0.0000265

AC XY:

AN XY:

113120

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000123

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000215

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000250

AC:

AN:

1438944

Hom.:

Cov.:

AF XY:

0.0000224

AC XY:

AN XY:

714344

show subpopulations

Gnomad4 AFR exome

AF:

0.0000300

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000512

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000290

Gnomad4 OTH exome

AF:

0.0000168

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152220

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74376

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ExAC

AF:

0.00000838

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 13, 2022

This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 14 of the PROSC protein (p.Gly14Arg). This variant is present in population databases (rs780857882, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with PROSC-related conditions. ClinVar contains an entry for this variant (Variation ID: 1032529). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Epilepsy, early-onset, vitamin B6-dependent

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Baylor Genetics

Oct 12, 2018

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.50

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.25

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.13

T;T

Eigen

Benign

0.017

Eigen_PC

Benign

0.040

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.81

T;T

M_CAP

Benign

0.047

MetaRNN

Benign

0.19

T;T

MetaSVM

Benign

-0.98

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.68

PROVEAN

Benign

-1.4

N;N

REVEL

Benign

0.15

Sift

Benign

0.048

D;T

Sift4G

Benign

0.20

T;T

Polyphen

0.41

B;.

Vest4

0.64

MutPred

0.35

Gain of MoRF binding (P = 0.0217);Gain of MoRF binding (P = 0.0217);

MVP

0.45

MPC

0.46

ClinPred

0.54

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.31

gMVP

0.65

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over