chr1-235342639-T-G

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PS1_ModeratePM1PM2PP3_ModeratePP5_Moderate

The NM_004837.4(GGPS1):​c.770T>G​(p.Phe257Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin UniProt.

Frequency

Genomes: not found (cov: 33)

Consequence

GGPS1
NM_004837.4 missense

Scores

12
6
1

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 7.99
Variant links:
Genes affected
GGPS1 (HGNC:4249): (geranylgeranyl diphosphate synthase 1) This gene is a member of the prenyltransferase family and encodes a protein with geranylgeranyl diphosphate (GGPP) synthase activity. The enzyme catalyzes the synthesis of GGPP from farnesyl diphosphate and isopentenyl diphosphate. GGPP is an important molecule responsible for the C20-prenylation of proteins and for the regulation of a nuclear hormone receptor. Alternate transcriptional splice variants, both protein-coding and non-protein-coding, have been found for this gene. [provided by RefSeq, Sep 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PS1
Transcript NM_004837.4 (GGPS1) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in UniProt
PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_004837.4
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.924
PP5
Variant 1-235342639-T-G is Pathogenic according to our data. Variant chr1-235342639-T-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 3233259.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr1-235342639-T-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GGPS1NM_004837.4 linkuse as main transcriptc.770T>G p.Phe257Cys missense_variant 4/4 ENST00000282841.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GGPS1ENST00000282841.9 linkuse as main transcriptc.770T>G p.Phe257Cys missense_variant 4/41 NM_004837.4 P1O95749-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Cov.:
29
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Myopathy with tubular aggregates Pathogenic:1
Likely pathogenic, criteria provided, single submitterresearchMuscle and Diseases Team, Institut de Génétique et Biologie Moléculaire et CellulaireMar 01, 2024PM1+PM2+PP3+PP4 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.87
BayesDel_addAF
Pathogenic
0.34
D
BayesDel_noAF
Pathogenic
0.26
CADD
Pathogenic
30
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.47
T;T;T;.
Eigen
Pathogenic
0.99
Eigen_PC
Pathogenic
0.94
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.94
.;D;.;D
M_CAP
Uncertain
0.11
D
MetaRNN
Pathogenic
0.92
D;D;D;D
MetaSVM
Uncertain
0.31
D
MutationAssessor
Pathogenic
3.4
M;M;M;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.71
T
PROVEAN
Pathogenic
-7.0
D;D;D;D
REVEL
Pathogenic
0.72
Sift
Pathogenic
0.0
D;D;D;D
Sift4G
Pathogenic
0.0010
D;D;D;D
Polyphen
1.0
D;D;D;.
Vest4
0.87
MutPred
0.75
Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);.;
MVP
0.50
MPC
1.6
ClinPred
1.0
D
GERP RS
6.2
Varity_R
0.88
gMVP
0.73

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-235505954; API