chr20-46686761-C-T

Variant names:

• chr20-46686761-C-T
• rs2063182249
• NM_033550.4:c.754G>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_033550.4(TP53RK):​c.754G>A​(p.Val252Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,230 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V252F) has been classified as Uncertain significance.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: TP53RK NM_033550.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.21
• Publications: 0 publications found

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]

TP53RK Gene-Disease associations (from GenCC):

• Galloway-Mowat syndrome 4

  Inheritance: AR Classification: STRONG, LIMITED Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
• Galloway-Mowat syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.07994935).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_033550.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TP53RK	NM_033550.4	MANE Select	c.754G>A	p.Val252Ile	missense	Exon 2 of 2	NP_291028.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TP53RK	ENST00000372114.4	TSL:1 MANE Select	c.754G>A	p.Val252Ile	missense	Exon 2 of 2	ENSP00000361186.3	Q96S44
	TP53RK	ENST00000372102.3	TSL:1	c.*393G>A		3_prime_UTR	Exon 2 of 2	ENSP00000361174.3	Q5JZ02

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152230 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 30

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152230 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74374

African (AFR) AF: 0.0000241 AC: 1 AN: 41450

American (AMR) AF: 0.00 AC: 0 AN: 15286

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5200

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68046

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Galloway-Mowat syndrome 4 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.25	T
BayesDel_noAF	Benign	-0.60
CADD	Benign	19
DANN	Benign	0.96
DEOGEN2	Benign	0.0025	T
Eigen	Benign	-0.34
Eigen_PC	Benign	-0.17
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.91	D
M_CAP	Benign	0.0040	T
MetaRNN	Benign	0.080	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.1	L
PhyloP100		3.2
PrimateAI	Uncertain	0.51	T
PROVEAN	Benign	-0.36	N
REVEL	Benign	0.025
Sift	Benign	0.46	T
Sift4G	Benign	0.44	T
Polyphen		0.076	B
Vest4		0.12
MutPred		0.32		Loss of methylation at R249 (P = 0.0651)
MVP		0.10
MPC		0.27
ClinPred		0.47	T
GERP RS		3.2
Varity_R		0.023
Mutation Taster		=91/9	polymorphism

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs2063182249; hg19: chr20-45315400;