NM_002653.5:c.716A>C

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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NM_002653.5:c.716A>C

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