Variant 4-110621303-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP3

The NM_000325.6(PITX2):c.272G>A(p.Arg91Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,654 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

PITX2
NM_000325.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.12

Variant links:

Genes affected

PITX2 (HGNC:9005): (paired like homeodomain 2) This gene encodes a member of the RIEG/PITX homeobox family, which is in the bicoid class of homeodomain proteins. The encoded protein acts as a transcription factor and regulates procollagen lysyl hydroxylase gene expression. This protein plays a role in the terminal differentiation of somatotroph and lactotroph cell phenotypes, is involved in the development of the eye, tooth and abdominal organs, and acts as a transcriptional regulator involved in basal and hormone-regulated activity of prolactin. Mutations in this gene are associated with Axenfeld-Rieger syndrome, iridogoniodysgenesis syndrome, and sporadic cases of Peters anomaly. A similar protein in other vertebrates is involved in the determination of left-right asymmetry during development. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Jul 2008]

PITX2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM1

In a DNA_binding_region Homeobox (size 59) in uniprot entity PITX2_HUMAN there are 15 pathogenic changes around while only 0 benign (100%) in NM_000325.6

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.773

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PITX2	NM_000325.6 linkuse as main transcript	c.272G>A	p.Arg91Gln	missense_variant	2/3	ENST00000644743.1	NP_000316.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PITX2	ENST00000644743.1 linkuse as main transcript	c.272G>A	p.Arg91Gln	missense_variant	2/3		NM_000325.6	ENSP00000495061		Q99697-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251366

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135862

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461654

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727144

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000165

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.87

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Pathogenic

0.18

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.79

.;.;D;D;.;D;D;D;.;T;.;.

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.96

.;D;.;.;.;.;.;D;D;D;D;D

M_CAP

Pathogenic

0.55

MetaRNN

Pathogenic

0.77

D;D;D;D;D;D;D;D;D;D;D;D

MetaSVM

Pathogenic

0.99

MutationAssessor

Benign

0.97

.;.;L;L;.;L;L;L;.;.;.;.

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Pathogenic

0.88

PROVEAN

Uncertain

-2.5

.;N;.;N;N;N;.;.;.;N;N;.

REVEL

Pathogenic

0.87

Sift

Uncertain

0.0030

.;D;.;D;D;D;.;.;.;D;D;.

Sift4G

Uncertain

0.0060

.;D;.;D;D;D;D;D;D;D;.;D

Polyphen

0.99

D;D;D;D;D;D;D;D;D;D;.;.

Vest4

0.46, 0.45, 0.41, 0.44, 0.44, 0.41, 0.30

MutPred

0.42

.;.;Gain of glycosylation at S80 (P = 0.0112);Gain of glycosylation at S80 (P = 0.0112);.;Gain of glycosylation at S80 (P = 0.0112);Gain of glycosylation at S80 (P = 0.0112);Gain of glycosylation at S80 (P = 0.0112);.;Gain of glycosylation at S80 (P = 0.0112);.;.;

MVP

0.90

MPC

2.1

ClinPred

1.0

GERP RS

5.4

Varity_R

0.57

gMVP

0.85

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

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over