6-32189887-G-A

Position:

• chr6-32189887-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_002586.5(PBX2):​c.29C>T​(p.Pro10Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,290,400 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 29)
  • Exomes 𝑓: 0.0000031 (0 hom.)
• Consequence: PBX2 NM_002586.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.01

Genes affected

PBX2 (HGNC:8633): (PBX homeobox 2) This gene encodes a ubiquitously expressed member of the TALE/PBX homeobox family. It was identified by its similarity to a homeobox gene which is involved in t(1;19) translocation in acute pre-B-cell leukemias. This protein is a transcriptional activator which binds to the TLX1 promoter. The gene is located within the major histocompatibility complex (MHC) on chromosome 6. [provided by RefSeq, Jul 2008]

PBX2 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15606189).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PBX2	NM_002586.5	c.29C>T	p.Pro10Leu	missense_variant	1/9	ENST00000375050.6	NP_002577.2
PBX2	XM_047418839.1	c.-243C>T		5_prime_UTR_variant	1/8		XP_047274795.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PBX2	ENST00000375050.6	c.29C>T	p.Pro10Leu	missense_variant	1/9	1	NM_002586.5	ENSP00000364190.3
PBX2	ENST00000478678.5	n.56C>T		non_coding_transcript_exon_variant	1/6	1

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome AF: 0.00000310 AC: 4 AN: 1290400 Hom.: 0 Cov.: 26 AF XY: 0.00000316 AC XY: 2 AN XY: 633454

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000391

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 29

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

Nov 27, 2024

The c.29C>T (p.P10L) alteration is located in exon 1 (coding exon 1) of the PBX2 gene. This alteration results from a C to T substitution at nucleotide position 29, causing the proline (P) at amino acid position 10 to be replaced by a leucine (L). 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	Benign	0.12
BayesDel_addAF	Benign	0.00041	T
BayesDel_noAF	Benign	-0.24
CADD	Benign	21
DANN	Uncertain	0.99
DEOGEN2	Benign	0.073	T
Eigen	Benign	-0.48
Eigen_PC	Benign	-0.30
FATHMM_MKL	Benign	0.30	N
M_CAP	Pathogenic	0.77	D
MetaRNN	Benign	0.16	T
MetaSVM	Benign	-0.89	T
MutationAssessor	Benign	0.0	N
PrimateAI	Pathogenic	0.91	D
PROVEAN	Benign	-0.30	N
REVEL	Benign	0.19
Sift	Benign	0.13	T
Sift4G	Uncertain	0.034	D
Polyphen		0.014	B
Vest4		0.19
MutPred		0.19		Loss of glycosylation at P10 (P = 0.0182);
MVP		0.65
MPC		0.72
ClinPred		0.34	T
GERP RS		3.5
RBP_binding_hub_radar		1.1
RBP_regulation_power_radar		4.2
Varity_R		0.058
gMVP		0.26

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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: chr6-32157664;