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GeneBe

5-135028784-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002653.5(PITX1):c.940A>G(p.Ser314Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000132 in 151,638 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Consequence

PITX1
NM_002653.5 missense

Scores

1
12
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.20
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PITX1NM_002653.5 linkuse as main transcriptc.940A>G p.Ser314Gly missense_variant 3/3 ENST00000265340.12
PITX1XM_047417318.1 linkuse as main transcriptc.1042A>G p.Ser348Gly missense_variant 4/4
PITX1XM_047417319.1 linkuse as main transcriptc.595A>G p.Ser199Gly missense_variant 3/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PITX1ENST00000265340.12 linkuse as main transcriptc.940A>G p.Ser314Gly missense_variant 3/31 NM_002653.5 P1
PITX1ENST00000506438.5 linkuse as main transcriptc.940A>G p.Ser314Gly missense_variant 4/41 P1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151638
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
GnomAD4 exome
Cov.:
31
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151638
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74076
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
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:
0.00
Bravo
AF:
0.0000340

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 submitterclinical testingAmbry GeneticsNov 06, 2023The c.940A>G (p.S314G) alteration is located in exon 3 (coding exon 3) of the PITX1 gene. This alteration results from a A to G substitution at nucleotide position 940, causing the serine (S) at amino acid position 314 to be replaced by a glycine (G). 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
0.23
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
-0.080
Cadd
Pathogenic
33
Dann
Uncertain
1.0
DEOGEN2
Benign
0.14
T;T
Eigen
Uncertain
0.39
Eigen_PC
Uncertain
0.39
FATHMM_MKL
Uncertain
0.96
D
M_CAP
Pathogenic
0.62
D
MetaRNN
Uncertain
0.70
D;D
MetaSVM
Uncertain
0.57
D
MutationAssessor
Benign
1.1
L;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.73
T
PROVEAN
Benign
-0.29
N;N
REVEL
Uncertain
0.51
Sift
Uncertain
0.010
D;D
Sift4G
Uncertain
0.027
D;D
Polyphen
0.92
P;P
Vest4
0.49
MutPred
0.21
Loss of stability (P = 0.0279);Loss of stability (P = 0.0279);
MVP
0.95
MPC
1.1
ClinPred
0.94
D
GERP RS
4.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.35
gMVP
0.27

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.

Other links and lift over

dbSNP: rs1752396994; hg19: chr5-134364474; API