Variant 9-127808825-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_004957.6(FPGS):c.996G>C(p.Arg332Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00026 in 1,563,112 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00026 ( 0 hom. )

Consequence

FPGS
NM_004957.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0950

Variant links:

Genes affected

FPGS (HGNC:3824): (folylpolyglutamate synthase) This gene encodes the folylpolyglutamate synthetase enzyme. This enzyme has a central role in establishing and maintaining both cytosolic and mitochondrial folylpolyglutamate concentrations and, therefore, is essential for folate homeostasis and the survival of proliferating cells. This enzyme catalyzes the ATP-dependent addition of glutamate moieties to folate and folate derivatives. Alternative splicing results in transcript variants encoding different isoforms. [provided by RefSeq, Jan 2014]

FPGS links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.017648786).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FPGS	NM_004957.6 linkuse as main transcript	c.996G>C	p.Arg332Ser	missense_variant	11/15	ENST00000373247.7	NP_004948.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FPGS	ENST00000373247.7 linkuse as main transcript	c.996G>C	p.Arg332Ser	missense_variant	11/15	1	NM_004957.6	ENSP00000362344	P1	Q05932-1

Frequencies

GnomAD3 genomes

AF:

0.000243

AC:

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000382

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000227

AC:

AN:

171588

Hom.:

AF XY:

0.000251

AC XY:

AN XY:

91506

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000342

Gnomad ASJ exome

AF:

0.000116

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000169

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000344

Gnomad OTH exome

AF:

0.000217

GnomAD4 exome

AF:

0.000262

AC:

369

AN:

1410844

Hom.:

Cov.:

AF XY:

0.000260

AC XY:

181

AN XY:

697324

show subpopulations

Gnomad4 AFR exome

AF:

0.0000312

Gnomad4 AMR exome

AF:

0.000269

Gnomad4 ASJ exome

AF:

0.0000396

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000125

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000310

Gnomad4 OTH exome

AF:

0.000171

GnomAD4 genome

AF:

0.000243

AC:

AN:

152268

Hom.:

Cov.:

AF XY:

0.000282

AC XY:

AN XY:

74456

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000588

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000382

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000273

Hom.:

Bravo

AF:

0.000230

ExAC

AF:

0.000153

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

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 submitter

clinical testing

Ambry Genetics

Jan 17, 2024

The c.996G>C (p.R332S) alteration is located in exon 11 (coding exon 11) of the FPGS gene. This alteration results from a G to C substitution at nucleotide position 996, causing the arginine (R) at amino acid position 332 to be replaced by a serine (S). 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

0.097

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.58

CADD

Benign

6.1

DANN

Benign

0.62

DEOGEN2

Benign

0.0073

T;T;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.22

LIST_S2

Benign

0.36

T;.;T

M_CAP

Benign

0.0053

MetaRNN

Benign

0.018

T;T;T

MetaSVM

Benign

-0.96

MutationTaster

Benign

1.0

N;N;N;N;N

PROVEAN

Benign

0.090

.;N;N

REVEL

Benign

0.0080

Sift

Benign

0.094

.;T;T

Sift4G

Benign

0.074

T;T;T

Vest4

0.18

MVP

0.16

ClinPred

0.012

GERP RS

0.12

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