rs1752402673

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002653.5(PITX1):c.716A>C(p.Asn239Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PITX1
NM_002653.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.448

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

clubfoot
Inheritance: AD Classification: STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)
brachydactyly-elbow wrist dysplasia syndrome
Inheritance: AD Classification: SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)

PITX1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.11472076).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PITX1	NM_002653.5 link	c.716A>C	p.Asn239Thr	missense_variant	Exon 3 of 3	ENST00000265340.12	NP_002644.4	P78337X5D9A5
PITX1	XM_047417318.1 link	c.818A>C	p.Asn273Thr	missense_variant	Exon 4 of 4		XP_047273274.1
PITX1	XM_047417319.1 link	c.371A>C	p.Asn124Thr	missense_variant	Exon 3 of 3		XP_047273275.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PITX1	ENST00000265340.12 link	c.716A>C	p.Asn239Thr	missense_variant	Exon 3 of 3	1	NM_002653.5	ENSP00000265340.6	P78337
PITX1	ENST00000506438.5 link	c.716A>C	p.Asn239Thr	missense_variant	Exon 4 of 4	1		ENSP00000427542.1	P78337
PITX1	ENST00000503586.1 link	n.*214A>C		downstream_gene_variant		3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461862

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727240

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111998

Other (OTH)

AF:

0.0000166

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 21, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.716A>C (p.N239T) alteration is located in exon 3 (coding exon 3) of the PITX1 gene. This alteration results from a A to C substitution at nucleotide position 716, causing the asparagine (N) at amino acid position 239 to be replaced by a threonine (T). 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

0.071

BayesDel_addAF

Benign

-0.094

BayesDel_noAF

Benign

-0.37

CADD

Benign

(source)

DANN

Benign

0.88

DEOGEN2

Benign

0.17

T;T

Eigen

Benign

-0.41

Eigen_PC

Benign

-0.21

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.90

.;D

M_CAP

Benign

0.059

MetaRNN

Benign

0.11

T;T

MetaSVM

Benign

-0.49

MutationAssessor

Benign

-0.46

N;N

PhyloP100

0.45

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.36

N;N

REVEL

Benign

0.26

Sift

Benign

0.94

T;T

Sift4G

Benign

0.41

T;T

Polyphen

0.0040

B;B

Vest4

0.29

MutPred

0.18

Gain of glycosylation at N239 (P = 0.0199);Gain of glycosylation at N239 (P = 0.0199);

MVP

0.77

MPC

1.0

ClinPred

0.35

GERP RS

4.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.11

gMVP

0.46

Mutation Taster

=59/41

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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rs1752402673

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over