chr5-135033724-G-A

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_002653.5(PITX1):c.158C>T(p.Thr53Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000094 in 1,596,244 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 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000090 ( 0 hom. )

Consequence

PITX1
NM_002653.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.54

Variant links:

Genes affected

PITX1 (HGNC:9004): (paired like homeodomain 1) This gene encodes a member of the RIEG/PITX homeobox family, which is in the bicoid class of homeodomain proteins. Members of this family are involved in organ development and left-right asymmetry. This protein acts as a transcriptional regulator involved in basal and hormone-regulated activity of prolactin. [provided by RefSeq, Jul 2008]

PITX1 links:

PITX1-AS1 (HGNC:48332): (PITX1 antisense RNA 1)

PITX1-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.35705215).

BS2

High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PITX1	NM_002653.5 link	c.158C>T	p.Thr53Met	missense_variant	Exon 1 of 3	ENST00000265340.12	NP_002644.4	P78337X5D9A5
PITX1	XM_047417318.1 link	c.260C>T	p.Thr87Met	missense_variant	Exon 2 of 4		XP_047273274.1
PITX1-AS1	NR_161235.1 link	n.267+184G>A		intron_variant	Intron 1 of 5
PITX1	XM_047417319.1 link	c.-463C>T		upstream_gene_variant			XP_047273275.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PITX1	ENST00000265340.12 link	c.158C>T	p.Thr53Met	missense_variant	Exon 1 of 3	1	NM_002653.5	ENSP00000265340.6		P78337

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152104

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.000478

GnomAD3 exomes

AF:

0.0000457

AC:

AN:

219016

Hom.:

AF XY:

0.0000327

AC XY:

AN XY:

122354

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000266

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:

0.0000102

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000900

AC:

AN:

1444140

Hom.:

Cov.:

AF XY:

0.00000556

AC XY:

AN XY:

718888

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000202

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:

0.00000270

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152104

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74292

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000281

Hom.:

Bravo

AF:

0.0000416

ExAC

AF:

0.0000425

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Clubfoot

Uncertain:1

Aug 20, 2021

New York Genome Center

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The inherited heterozygous c.158C>T (p.Thr53Met) missense variant identified in the PITX1 gene has not been reported in affected individuals in the literature. The variant has 0.00001315 allele frequency in the gnomAD (v3) database (2 out of 152104 heterozygous alleles, no homozygotes) suggesting it is not a common benign variant in the populations represented in that database. This variant has not been reported in the ClinVar database. This variant affects an evolutionarily conserved threonine residue [Thr53]. In silico tools provide conflicting predictions about potential pathogenicity of this variant (CADD score =26.2, REVEL score = 0.404). Due to the lack of compelling evidence for its pathogenicity, the heterozygous c.158C>T (p.Thr53Met) missense variant identified in the PITX1 gene is reported as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

-0.070

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.31

T;T;.;T

Eigen

Uncertain

0.22

Eigen_PC

Benign

0.22

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.91

.;D;D;D

M_CAP

Pathogenic

0.77

MetaRNN

Benign

0.36

T;T;T;T

MetaSVM

Uncertain

0.30

MutationAssessor

Benign

1.8

L;L;.;.

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-1.7

N;N;N;N

REVEL

Uncertain

0.40

Sift

Benign

0.085

T;T;D;D

Sift4G

Benign

0.077

T;T;.;D

Polyphen

0.96

D;D;.;.

Vest4

0.29

MutPred

0.17

Loss of phosphorylation at T53 (P = 0.0118);Loss of phosphorylation at T53 (P = 0.0118);Loss of phosphorylation at T53 (P = 0.0118);Loss of phosphorylation at T53 (P = 0.0118);

MVP

0.95

MPC

1.1

ClinPred

0.43

GERP RS

3.4

Varity_R

0.10

gMVP

0.43

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over