Variant 5-135033803-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002653.5(PITX1):c.79A>G(p.Met27Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000282 in 1,416,452 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. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

PITX1
NM_002653.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.32

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:

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ACMG classification

Classification made for transcript

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=0.23842621).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
PITX1	NM_002653.5 linkuse as main transcript	c.79A>G	p.Met27Val	missense_variant	1/3	ENST00000265340.12	NP_002644.4
PITX1-AS1	NR_161235.1 linkuse as main transcript	n.267+263T>C		intron_variant, non_coding_transcript_variant
PITX1	XM_047417318.1 linkuse as main transcript	c.181A>G	p.Met61Val	missense_variant	2/4		XP_047273274.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PITX1	ENST00000265340.12 linkuse as main transcript	c.79A>G	p.Met27Val	missense_variant	1/3	1	NM_002653.5	ENSP00000265340	P1
PITX1-AS1	ENST00000624272.3 linkuse as main transcript	n.261+263T>C		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000282

AC:

AN:

1416452

Hom.:

Cov.:

AF XY:

0.00000426

AC XY:

AN XY:

703732

show subpopulations

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:

0.0000250

Gnomad4 NFE exome

AF:

0.00000273

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 12, 2023

The c.79A>G (p.M27V) alteration is located in exon 1 (coding exon 1) of the PITX1 gene. This alteration results from a A to G substitution at nucleotide position 79, causing the methionine (M) at amino acid position 27 to be replaced by a valine (V). 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

0.070

BayesDel_addAF

Uncertain

0.027

BayesDel_noAF

Benign

-0.20

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.18

T;T;.;T

Eigen

Benign

-0.47

Eigen_PC

Benign

-0.38

FATHMM_MKL

Benign

0.72

LIST_S2

Benign

0.64

.;T;T;T

M_CAP

Pathogenic

0.83

MetaRNN

Benign

0.24

T;T;T;T

MetaSVM

Benign

-0.29

MutationAssessor

Benign

1.8

L;L;.;.

MutationTaster

Benign

0.98

D;D

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

-0.72

N;N;N;N

REVEL

Benign

0.22

Sift

Benign

0.087

T;T;T;T

Sift4G

Benign

0.50

T;T;.;T

Polyphen

0.0

B;B;.;.

Vest4

0.11

MutPred

0.19

Loss of catalytic residue at M27 (P = 0.1047);Loss of catalytic residue at M27 (P = 0.1047);Loss of catalytic residue at M27 (P = 0.1047);Loss of catalytic residue at M27 (P = 0.1047);

MVP

0.94

MPC

1.0

ClinPred

0.35

GERP RS

1.3

Varity_R

0.25

gMVP

0.20

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over