chr11-125894006-G-A

Position:

• chr11-125894006-G-A

Variant summary

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

The NM_031307.4(PUS3):​c.1225C>T​(p.Arg409Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000124 in 1,614,126 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000012 (0 hom.)
• Consequence: PUS3 NM_031307.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.44

Genes affected

PUS3 (HGNC:25461): (pseudouridine synthase 3) The protein encoded by this gene catalyzes the formation of tRNA pseudouridine from tRNA uridine at position 39 in the anticodon stem and loop of transfer RNAs. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2012]

HYLS1 (HGNC:26558): (HYLS1 centriolar and ciliogenesis associated) This gene encodes a protein localized to the cytoplasm. Mutations in this gene are associated with hydrolethalus syndrome. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Oct 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
PUS3	NM_031307.4	c.1225C>T	p.Arg409Cys	missense_variant	4/4	ENST00000227474.8	NP_112597.4
HYLS1	NM_001134793.2	c.-26+2534G>A		intron_variant		ENST00000425380.7	NP_001128265.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PUS3	ENST00000227474.8	c.1225C>T	p.Arg409Cys	missense_variant	4/4	1	NM_031307.4	ENSP00000227474.3
HYLS1	ENST00000425380.7	c.-26+2534G>A		intron_variant		3	NM_001134793.2	ENSP00000414884.2

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152132 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000119 AC: 3 AN: 251440 Hom.: 0 AF XY: 0.0000221 AC XY: 3 AN XY: 135900

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.0000653

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000116 AC: 17 AN: 1461876 Hom.: 0 Cov.: 33 AF XY: 0.0000110 AC XY: 8 AN XY: 727242

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000756

Gnomad4 SAS exome AF: 0.0000232

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000450

Gnomad4 OTH exome AF: 0.0000993

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152250 Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3 AN XY: 74442

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000329 Hom.: 0

ExAC AF: 0.0000165 AC: 2

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Severe growth deficiency-strabismus-extensive dermal melanocytosis-intellectual disability syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Neuberg Centre For Genomic Medicine, NCGM

-

The observed missense c.1225C>T(p.Arg409Cys) variant in PUS3 gene has not been reported previously as a pathogenic variant nor as a benign variant, to our knowledge. This variant is present with an allele frequency of 0.001% in gnomAD Exomes database. This variant has not been submitted to the ClinVar database. Multiple lines of computational evidence (Polyphen -Probably Damaging, SIFT - Damaging and MutationTaster - Disease causing) predict damaging effect on protein structure and function for this variant. The reference amino acid in PUS3 is predicted as conserved by GERP++ and PhyloP across 100 vertebrates. The amino acid Arg at position 409 is changed to a Cys changing protein sequence and it might alter its composition and physico-chemical properties. For these reasons, this variant has been classified as Uncertain Significance (VUS). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Benign	-0.039	T
BayesDel_noAF	Benign	-0.090
CADD	Pathogenic	29
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.21	T;T;.
Eigen	Uncertain	0.55
Eigen_PC	Uncertain	0.48
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.96	.;D;D
M_CAP	Benign	0.076	D
MetaRNN	Uncertain	0.73	D;D;D
MetaSVM	Benign	-0.75	T
MutationAssessor	Pathogenic	3.0	M;M;.
PrimateAI	Uncertain	0.59	T
PROVEAN	Pathogenic	-5.8	D;D;.
REVEL	Uncertain	0.32
Sift	Pathogenic	0.0	D;D;.
Sift4G	Pathogenic	0.0010	D;D;D
Polyphen		1.0	D;D;.
Vest4		0.63
MutPred		0.51		Loss of MoRF binding (P = 0.0043);Loss of MoRF binding (P = 0.0043);.;
MVP		0.59
MPC		0.46
ClinPred		0.99	D
GERP RS		3.5
Varity_R		0.62
gMVP		0.59

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

Other links and lift over

dbSNP: rs755231389; hg19: chr11-125763901; COSMIC: COSV57104018; COSMIC: COSV57104018;