3-189631577-G-A

Position:

chr3-189631577-G-A

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PP2PP3_ModerateBS2

The NM_003722.5(TP63):c.62G>A(p.Arg21His) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000164 in 1,460,524 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/2 splice prediction tools predicting alterations to normal splicing. 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. R21C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

TP63
NM_003722.5 missense, splice_region

Scores

Splicing: ADA: 0.9999

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 6.64

Variant links:

Genes affected

TP63 (HGNC:15979): (tumor protein p63) This gene encodes a member of the p53 family of transcription factors. The functional domains of p53 family proteins include an N-terminal transactivation domain, a central DNA-binding domain and an oligomerization domain. Alternative splicing of this gene and the use of alternative promoters results in multiple transcript variants encoding different isoforms that vary in their functional properties. These isoforms function during skin development and maintenance, adult stem/progenitor cell regulation, heart development and premature aging. Some isoforms have been found to protect the germline by eliminating oocytes or testicular germ cells that have suffered DNA damage. Mutations in this gene are associated with ectodermal dysplasia, and cleft lip/palate syndrome 3 (EEC3); split-hand/foot malformation 4 (SHFM4); ankyloblepharon-ectodermal defects-cleft lip/palate; ADULT syndrome (acro-dermato-ungual-lacrimal-tooth); limb-mammary syndrome; Rap-Hodgkin syndrome (RHS); and orofacial cleft 8. [provided by RefSeq, Aug 2016]

TP63 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), TP63. . Gene score misZ 2.2077 (greater than the threshold 3.09). Trascript score misZ 3.5096 (greater than threshold 3.09). GenCC has associacion of gene with Rapp-Hodgkin syndrome, ADULT syndrome, split hand-foot malformation 4, limb-mammary syndrome, premature ovarian failure 21, split hand-foot malformation, ankyloblepharon-ectodermal defects-cleft lip/palate syndrome, EEC syndrome, ectrodactyly, ectodermal dysplasia, and cleft lip-palate syndrome 3.

PP3

Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. No scorers claiming Benign.

BS2

High AC in GnomAdExome4 at 24 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TP63	NM_003722.5 linkuse as main transcript	c.62G>A	p.Arg21His	missense_variant, splice_region_variant	1/14	ENST00000264731.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TP63	ENST00000264731.8 linkuse as main transcript	c.62G>A	p.Arg21His	missense_variant, splice_region_variant	1/14	1	NM_003722.5	P4	Q9H3D4-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251114

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135714

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000164

AC:

AN:

1460524

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

726640

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000672

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000162

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

TP63-Related Spectrum Disorders

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 11, 2023

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 21 of the TP63 protein (p.Arg21His). This variant also falls at the last nucleotide of exon 1, which is part of the consensus splice site for this exon. This variant is present in population databases (rs766583971, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with TP63-related conditions. ClinVar contains an entry for this variant (Variation ID: 1510128). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Clinical Genetics Laboratory, Skane University Hospital Lund

Oct 10, 2023

- -

Ankyloblepharon-ectodermal defects-cleft lip/palate syndrome;C1785148:Rapp-Hodgkin syndrome;C1851878:Orofacial cleft 8;C1854442:Split hand-foot malformation 4;C1858562:Ectrodactyly, ectodermal dysplasia, and cleft lip-palate syndrome 3;C1863204:ADULT syndrome;C1863753:Limb-mammary syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

May 05, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Pathogenic

0.24

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.37

T;.;.;.;.

Eigen

Uncertain

0.61

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.91

D;D;D;D;D

M_CAP

Pathogenic

0.34

MetaRNN

Uncertain

0.66

D;D;D;D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Benign

1.2

L;L;L;L;L

MutationTaster

Benign

1.0

D;D;D;D;D;D

PrimateAI

Uncertain

0.74

PROVEAN

Benign

-0.23

N;N;N;N;N

REVEL

Uncertain

0.60

Sift

Uncertain

0.0040

D;D;D;D;D

Sift4G

Uncertain

0.019

D;D;D;D;D

Polyphen

0.99

D;D;D;D;.

Vest4

0.75

MutPred

0.41

Gain of glycosylation at Y18 (P = 0.0275);Gain of glycosylation at Y18 (P = 0.0275);Gain of glycosylation at Y18 (P = 0.0275);Gain of glycosylation at Y18 (P = 0.0275);Gain of glycosylation at Y18 (P = 0.0275);

MVP

0.84

MPC

1.1

ClinPred

0.81

GERP RS

5.7

Varity_R

0.28

gMVP

0.53

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.96

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over