Genetic Variant PBX4:p.Leu252Phe (chr19-19569463-G-A) – ACMG Classification: Likely_benign (-1 pts)

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_025245.3(PBX4):c.754C>T(p.Leu252Phe) variant causes a missense change. The variant allele was found at a frequency of 0.000113 in 1,611,936 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

PBX4
NM_025245.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.18

Publications

0 publications found

Variant links:

Genes affected

PBX4 (HGNC:13403): (PBX homeobox 4) This gene encodes a member of the pre-B cell leukemia transcription factor family. These proteins are homeobox proteins that play critical roles in embryonic development and cellular differentiation both as Hox cofactors and through Hox-independent pathways. The encoded protein contains a homeobox DNA-binding domain, but specific functions of the protein have not been determined. Alternatively spliced transcript variants have been observed for this gene. [provided by RefSeq, May 2011]

PBX4 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.3705535).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PBX4	NM_025245.3 link	c.754C>T	p.Leu252Phe	missense_variant	Exon 5 of 8	ENST00000251203.14	NP_079521.1	Q9BYU1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PBX4	ENST00000251203.14 link	c.754C>T	p.Leu252Phe	missense_variant	Exon 5 of 8	1	NM_025245.3	ENSP00000251203.5		Q9BYU1

Frequencies

GnomAD3 genomes

AF:

0.000131

AC:

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

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:

0.000235

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000642

AC:

AN:

249146

AF XY:

0.0000668

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000133

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.000111

AC:

162

AN:

1459764

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

726246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33298

American (AMR)

AF:

0.0000225

AC:

AN:

44376

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26070

East Asian (EAS)

AF:

0.00

AC:

AN:

39554

South Asian (SAS)

AF:

0.00

AC:

AN:

85962

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53396

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5732

European-Non Finnish (NFE)

AF:

0.000142

AC:

158

AN:

1111092

Other (OTH)

AF:

0.0000498

AC:

AN:

60284

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000131

AC:

AN:

152172

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

74328

show subpopulations

African (AFR)

AF:

0.0000965

AC:

AN:

41436

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000235

AC:

AN:

68038

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.460

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000197

Hom.:

Bravo

AF:

0.000113

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000576

AC:

EpiCase

AF:

0.000110

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 02, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.754C>T (p.L252F) alteration is located in exon 5 (coding exon 5) of the PBX4 gene. This alteration results from a C to T substitution at nucleotide position 754, causing the leucine (L) at amino acid position 252 to be replaced by a phenylalanine (F). 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

0.57

BayesDel_addAF

Uncertain

0.053

BayesDel_noAF

Uncertain

0.090

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.66

Eigen

Benign

-0.27

Eigen_PC

Benign

-0.29

FATHMM_MKL

Benign

0.74

LIST_S2

Uncertain

0.96

M_CAP

Uncertain

0.12

MetaRNN

Benign

0.37

MetaSVM

Pathogenic

0.90

MutationAssessor

Pathogenic

3.5

PhyloP100

4.2

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-1.9

REVEL

Uncertain

0.63

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0030

Polyphen

0.16

Vest4

0.37

MVP

0.96

MPC

0.28

ClinPred

0.33

GERP RS

1.4

Varity_R

0.26

gMVP

0.66

Mutation Taster

=66/34

polymorphism

(source)

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

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chr19-19569463-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over