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GeneBe

1-155310136-C-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_002004.4(FDPS):ā€‹c.270C>Gā€‹(p.Ile90Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000477 in 1,613,778 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 31)
Exomes š‘“: 0.000051 ( 0 hom. )

Consequence

FDPS
NM_002004.4 missense

Scores

6
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.768
Variant links:
Genes affected
FDPS (HGNC:3631): (farnesyl diphosphate synthase) This gene encodes an enzyme that catalyzes the production of geranyl pyrophosphate and farnesyl pyrophosphate from isopentenyl pyrophosphate and dimethylallyl pyrophosphate. The resulting product, farnesyl pyrophosphate, is a key intermediate in cholesterol and sterol biosynthesis, a substrate for protein farnesylation and geranylgeranylation, and a ligand or agonist for certain hormone receptors and growth receptors. Drugs that inhibit this enzyme prevent the post-translational modifications of small GTPases and have been used to treat diseases related to bone resorption. Multiple pseudogenes have been found on chromosomes 1, 7, 14, 15, 21 and X. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Oct 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAdExome4 at 75 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FDPSNM_002004.4 linkuse as main transcriptc.270C>G p.Ile90Met missense_variant 3/11 ENST00000368356.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FDPSENST00000368356.9 linkuse as main transcriptc.270C>G p.Ile90Met missense_variant 3/112 NM_002004.4 P14324-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152122
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251224
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135786
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000513
AC:
75
AN:
1461656
Hom.:
0
Cov.:
32
AF XY:
0.0000468
AC XY:
34
AN XY:
727134
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.0000630
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152122
Hom.:
0
Cov.:
31
AF XY:
0.0000269
AC XY:
2
AN XY:
74308
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1

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 GeneticsFeb 14, 2023The c.270C>G (p.I90M) alteration is located in exon 3 (coding exon 2) of the FDPS gene. This alteration results from a C to G substitution at nucleotide position 270, causing the isoleucine (I) at amino acid position 90 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
-0.087
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
18
DANN
Uncertain
0.99
Eigen
Benign
-0.36
Eigen_PC
Benign
-0.54
FATHMM_MKL
Benign
0.42
N
M_CAP
Benign
0.052
D
MetaRNN
Uncertain
0.46
T;T;T;T;T;T;T
MetaSVM
Benign
-0.89
T
MutationTaster
Benign
0.66
N;N;N
PrimateAI
Uncertain
0.55
T
PROVEAN
Benign
-1.2
N;N;.;.;N;.;.
REVEL
Uncertain
0.29
Sift
Uncertain
0.0050
D;D;.;.;D;.;.
Sift4G
Uncertain
0.012
D;D;D;D;D;D;D
Polyphen
0.98
.;D;.;.;D;.;.
Vest4
0.55
MutPred
0.63
.;Gain of disorder (P = 0.0788);.;Gain of disorder (P = 0.0788);Gain of disorder (P = 0.0788);Gain of disorder (P = 0.0788);.;
MVP
0.62
MPC
0.61
ClinPred
0.79
D
GERP RS
-4.9
Varity_R
0.46
gMVP
0.51

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: rs757869821; hg19: chr1-155279927; API