chr20-46686932-C-T

Position:

• chr20-46686932-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1 PM2 PP3

The NM_033550.4(TP53RK):​c.583G>A​(p.Asp195Asn) 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 Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: TP53RK NM_033550.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.63

Genes affected

TP53RK (HGNC:16197): (TP53 regulating kinase) Enables p53 binding activity and protein serine/threonine kinase activity. Involved in protein phosphorylation. Located in cytoplasm and nucleus. Part of EKC/KEOPS complex. Implicated in Galloway-Mowat syndrome 4. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM1: In a domain Protein kinase (size 220) in uniprot entity PRPK_HUMAN there are 6 pathogenic changes around while only 2 benign (75%) in NM_033550.4
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.812

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TP53RK	NM_033550.4	c.583G>A	p.Asp195Asn	missense_variant	2/2	ENST00000372114.4	NP_291028.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TP53RK	ENST00000372114.4	c.583G>A	p.Asp195Asn	missense_variant	2/2	1	NM_033550.4	ENSP00000361186.3
TP53RK	ENST00000372102	c.*222G>A		3_prime_UTR_variant	2/2	1		ENSP00000361174.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 10, 2021

The c.583G>A (p.D195N) alteration is located in exon 2 (coding exon 2) of the TP53RK gene. This alteration results from a G to A substitution at nucleotide position 583, causing the aspartic acid (D) at amino acid position 195 to be replaced by an asparagine (N). 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	Pathogenic	0.85
BayesDel_addAF	Benign	-0.10	T
BayesDel_noAF	Benign	-0.39
CADD	Pathogenic	29
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.067	T
Eigen	Pathogenic	0.78
Eigen_PC	Pathogenic	0.70
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.97	D
M_CAP	Benign	0.014	T
MetaRNN	Pathogenic	0.81	D
MetaSVM	Benign	-0.79	T
MutationAssessor	Pathogenic	3.0	M
PrimateAI	Uncertain	0.73	T
PROVEAN	Pathogenic	-5.0	D
REVEL	Uncertain	0.34
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.015	D
Polyphen		1.0	D
Vest4		0.73
MutPred		0.60		Loss of stability (P = 0.0892);
MVP		0.50
MPC		1.1
ClinPred		1.0	D
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.94

Splicing

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: chr20-45315571;