2-24793221-G-A

Position:

• chr2-24793221-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2 PP3_Moderate PP5

The NM_001013663.2(PTRHD1):​c.157C>T​(p.His53Tyr) 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. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 33)
• Consequence: PTRHD1 NM_001013663.2 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 8.74

Genes affected

PTRHD1 (HGNC:33782): (peptidyl-tRNA hydrolase domain containing 1) This gene encodes the enzyme peptidyl-tRNA hydrolase. Peptidyl-tRNA hydrolases perform the essential function of recycling peptidyl-tRNAs. Mutations in this gene are associated with autosomal-recessive intellectual disability and parkinsonism. [provided by RefSeq, May 2017]

CENPO (HGNC:28152): (centromere protein O) This gene encodes a component of the interphase centromere complex. The encoded protein is localized to the centromere throughout the cell cycle and is required for bipolar spindle assembly, chromosome segregation and checkpoint signaling during mitosis. Alternatively spliced transcript variants encoding multiple protein isoforms have been observed for this gene. [provided by RefSeq, Dec 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.922
• PP5: Variant 2-24793221-G-A is Pathogenic according to our data. Variant chr2-24793221-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 375735.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PTRHD1	NM_001013663.2	c.157C>T	p.His53Tyr	missense_variant	1/2	ENST00000328379.6	NP_001013685.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PTRHD1	ENST00000328379.6	c.157C>T	p.His53Tyr	missense_variant	1/2	1	NM_001013663.2	ENSP00000330389	P1
CENPO	ENST00000473706.5	c.-253G>A		5_prime_UTR_variant	1/7	2		ENSP00000417787
CENPO	ENST00000473476.5	n.29+57G>A		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Neurodevelopmental disorder with early-onset parkinsonism and behavioral abnormalities Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Mar 13, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.83
BayesDel_addAF	Pathogenic	0.27	D
BayesDel_noAF	Pathogenic	0.15
CADD	Pathogenic	30
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.86	D
Eigen	Pathogenic	1.1
Eigen_PC	Pathogenic	1.0
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.97	D
M_CAP	Benign	0.051	D
MetaRNN	Pathogenic	0.92	D
MetaSVM	Benign	-0.83	T
MutationAssessor	Pathogenic	3.3	M
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Pathogenic	0.81	D
PROVEAN	Pathogenic	-6.0	D
REVEL	Pathogenic	0.65
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.86
MutPred		0.78		Loss of disorder (P = 0.039);
MVP		0.53
MPC		0.82
ClinPred		1.0	D
GERP RS		6.1
Varity_R		0.95
gMVP		0.90

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: rs1057519631; hg19: chr2-25016090;