PITX2 - paired like homeodomain 2 Gene
Also Known as RS; RGS; ARP1; Brx1; IDG2; IGDS; IHG2; PTX2; RIEG; ASGD4; IGDS2; IRID2; Otlx2; RIEG1
Species: Homo sapiens
About PITX2
This gene has 14 transcripts (splice variants), 82 orthologues, 50 paralogues and is associated with 12 phenotypes. Biased expression in placenta (RPKM 15.1), urinary bladder (RPKM 3.5) and 6 other tissues.
Summary
This gene encodes a member of the RIEG/PITX homeobox family, which is in the bicoid class of homeodomain proteins. The encoded protein acts as a transcription factor and regulates procollagen lysyl hydroxylase gene expression. This protein plays a role in the terminal differentiation of somatotroph and lactotroph cell phenotypes, is involved in the development of the eye, tooth and abdominal organs, and acts as a transcriptional regulator involved in basal and hormone-regulated activity of Prolactin. Mutations in this gene are associated with Axenfeld-Rieger syndrome, iridogoniodysgenesis syndrome, and sporadic cases of Peters anomaly. A similar protein in Other vertebrates is involved in the determination of left-right asymmetry during development. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Jul 2008]
PITX2 Products (6)
| mRNA | Protein | Name |
|---|---|---|
| NM_000325.6 | NP_000316.2 | pituitary homeobox 2 isoform c |
| NM_001204397.2 | NP_001191326.1 | pituitary homeobox 2 isoform b |
| NM_001204398.1 | NP_001191327.1 | pituitary homeobox 2 isoform b |
| NM_001204399.1 | NP_001191328.1 | pituitary homeobox 2 isoform a |
| NM_153426.3 | NP_700475.1 | pituitary homeobox 2 isoform b |
| NM_153427.3 | NP_700476.1 | pituitary homeobox 2 isoform a |
| Biological Process GO Annotation | Evidence | Références | Source |
|---|---|---|---|
| involved in camera-type eye development |
IMP
IMP: Inferred from mutant phenotype
|
9618168 | GOA |
| involved in deltoid tuberosity development |
IMP
IMP: Inferred from mutant phenotype
|
18312615 | GOA |
| involved in iris morphogenesis |
IMP
IMP: Inferred from mutant phenotype
|
9437321 | GOA |
| involved in negative regulation of transcription by RNA polymerase II |
IDA
IDA: Inferred from direct assay
|
19174163 | GOA |
| involved in odontogenesis |
IMP
IMP: Inferred from mutant phenotype
|
14630904 | GOA |
| involved in positive regulation of transcription by RNA polymerase II |
IDA
IDA: Inferred from direct assay
|
9685346 | GOA |
| involved in regulation of DNA-templated transcription |
IDA
IDA: Inferred from direct assay
|
11301317 | GOA |
| acts upstream of or within regulation of transcription by RNA polymerase II |
IDA
IDA: Inferred from direct assay
|
15385555 | GOA |
| Cellular Component GO Annotation | Evidence | Références | Source |
|---|---|---|---|
| located in nucleus |
IDA
IDA: Inferred from direct assay
|
16449236 | GOA |
| part of transcription regulator complex |
IDA
IDA: Inferred from direct assay
|
15385555 | GOA |
PITX2 Protein Structure
Homeobox: Homeobox domain (86 - 142)
OAR: OAR domain (274 - 293)
- 0
- 100
- 200
- 300
- 317 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
pituitary homeobox 2 |
|
PITX2 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | Références |
|---|---|---|---|---|---|---|---|
|
Intra
|
PITX2 | Q99697 | YBX1 | Homo sapiens | P67809 | 19174163 | |
|
Cross
|
PITX2 | Q99697 | Hoxa1 | Mus musculus | P09022 | 23088713 | |
|
Cross
|
PITX2 | Q99697 | Hoxa1 | Mus musculus | P09022 | 23088713 |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Ring Dermoid Of Cornea |
|
|
| Anterior Segment Dysgenesis 4 |
|
|
| Axenfeld-Rieger Syndrome, Type 1 |
|
|
| Axenfeld-Rieger Syndrome |
|
|
| Anterior Segment Dysgenesis |
|
|
| Anterior Segment Dysgenesis 1 |
|
|
| Familial Atrial Fibrillation |
|
|
| Colobomatous Microphthalmia |
|
|
| Peters-Plus Syndrome |
|
|
| Atrial Fibrillation, Familial, 1 |
|
|
| Intestinal Atresia |
|
|
| Intraocular Pressure Quantitative Trait Locus |
|
|
| Fuchs' Endothelial Dystrophy |
|
|
| Gillespie Syndrome |
|
|
| Iris Disease |
|
|
| Tooth Agenesis |
|
|
| Axenfeld-Rieger Syndrome, Type 3 |
|
|
| Hydrophthalmos |
|
|
| Hypopituitarism |
|
|
| Juvenile Glaucoma |
|
|
| Atrial Fibrillation |
|
|
| Tetralogy Of Fallot |
|
|
| Otopalatodigital Syndrome, Type Ii |
|
|
| Primary Congenital Glaucoma |
|
|
| Aniridia 1 |
|
|
| Sclerocornea |
|
|
| Glaucoma 3, Primary Congenital, A |
|
|
| Right Atrial Isomerism |
|
|
| Keratitis, Hereditary |
|
|
| Wilms Tumor, Aniridia, Genitourinary Anomalies, And Mental Retardation Syndrome |
|
|
| Persistent Hyperplastic Primary Vitreous |
|
|
| Megalocornea |
|
|
| Char Syndrome |
|
|
| Umbilical Hernia |
|
|
| Ocular Pigment Dispersion With Or Without Glaucoma |
|
|
| Double Outlet Right Ventricle |
|
|
| Heart Disease |
|
|
| Nail-Patella Syndrome |
|
|
| Heart Septal Defect |
|
|
| Omphalocele |
|
|
| Microphthalmia, Syndromic 2 |
|
|
| Visceral Heterotaxy |
|
|
| Acquired Color Blindness |
|
|
| Cataract |
|
|
| Transposition Of The Great Arteries, Dextro-Looped |
|
|
| Corneal Edema |
|
|
| Septooptic Dysplasia |
|
|
| Coloboma Of Macula |
|
|
| Eye Disease |
|
|
| Microphthalmia, Syndromic 3 |
|
|
| Corneal Disease |
|
|
| Alcohol Dependence |
|
|
| Atrioventricular Septal Defect |
|
|
| Ventricular Septal Defect |
|
|
| Heart Conduction Disease |
|
|
| Cleft Palate, Isolated |
|
|
| Lens Disease |
|
|
| Glaucoma, Primary Open Angle |
|
|
| Atrial Heart Septal Defect |
|
|
| Situs Inversus |
|
|
| Physical Disorder |
|
|
| Velocardiofacial Syndrome |
|
|
| Orofacial Cleft |
|
|
| Microcephaly |
|
|
| Patent Ductus Arteriosus 1 |
|
|
| Brugada Syndrome |
|
|
| Primary Ciliary Dyskinesia |
|
|
| Strabismus |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Macaca mulatta | PITX2 | VGNC | VGNC:81500 |
| Felis catus | PITX2 | VGNC | VGNC:68870 |
| Canis familiaris | PITX2 | VGNC | VGNC:44590 |
| Mus musculus | PITX2 | MGD | MGI:109340 |
| Bos taurus | PITX2 | VGNC | VGNC:32925 |
| Rattus norvegicus | PITX2 | RGD | RGD:3331 |
| Others | PITX2 | NCBI |