10-26697790-G-T

Position:

• chr10-26697790-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001321979.2(PDSS1):​c.-515G>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000259 in 1,159,590 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000026 (0 hom.)
• Consequence: PDSS1 NM_001321979.2 5_prime_UTR_premature_start_codon_gain
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.913

Genes affected

PDSS1 (HGNC:17759): (decaprenyl diphosphate synthase subunit 1) The protein encoded by this gene is an enzyme that elongates the prenyl side-chain of coenzyme Q, or ubiquinone, one of the key elements in the respiratory chain. The gene product catalyzes the formation of all trans-polyprenyl pyrophosphates from isopentyl diphosphate in the assembly of polyisoprenoid side chains, the first step in coenzyme Q biosynthesis. The protein may be peripherally associated with the inner mitochondrial membrane, though no transit peptide has been definitively identified to date. Defects in this gene are a cause of coenzyme Q10 deficiency. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PDSS1	NM_014317.5	c.79G>T	p.Gly27Cys	missense_variant	1/12	ENST00000376215.10	NP_055132.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PDSS1	ENST00000376215.10	c.79G>T	p.Gly27Cys	missense_variant	1/12	1	NM_014317.5	ENSP00000365388.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000259 AC: 3 AN: 1159590 Hom.: 0 Cov.: 30 AF XY: 0.00000356 AC XY: 2 AN XY: 561024

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000311

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Deafness-encephaloneuropathy-obesity-valvulopathy syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Jun 24, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Uncertain	0.11	D
BayesDel_noAF	Uncertain	-0.080
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.11	T
Eigen	Benign	-0.0040
Eigen_PC	Benign	-0.17
FATHMM_MKL	Benign	0.027	N
LIST_S2	Benign	0.53	T
M_CAP	Pathogenic	0.95	D
MetaRNN	Uncertain	0.45	T
MetaSVM	Uncertain	-0.14	T
MutationAssessor	Benign	1.8	L
PrimateAI	Uncertain	0.79	T
PROVEAN	Benign	0.070	N
REVEL	Benign	0.21
Sift	Benign	0.18	T
Sift4G	Uncertain	0.011	D
Polyphen		0.99	D
Vest4		0.34
MutPred		0.24		Loss of relative solvent accessibility (P = 0.0186);
MVP		0.86
MPC		1.4
ClinPred		0.91	D
GERP RS		4.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0
Varity_R		0.15
gMVP		0.39

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: chr10-26986719;