PTTG1/2/3 Antibody
Purified Rabbit Polyclonal Antibody (Pab)
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application
| WB |
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Primary Accession | O95997 |
Reactivity | Human |
Host | Rabbit |
Clonality | Polyclonal |
Calculated MW | 29 KDa |
Antigen Region | 121 - 180 aa |
Gene ID | 9232 |
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Other Names | Securin, Esp1-associated protein, Pituitary tumor-transforming gene 1 protein, Tumor-transforming protein 1, hPTTG, PTTG1, EAP1, PTTG, TUTR1 |
Target/Specificity | KLH conjugated synthetic peptide derived from human PTTG1/2/3 |
Dilution | WB~~ 1:1000 |
Format | 0.01M PBS, pH 7.2, 0.09% (W/V) Sodium azide, Glycerol 50% |
Storage | Store at -20 °C.Stable for 12 months from date of receipt |
Name | PTTG1 |
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Synonyms | EAP1, PTTG, TUTR1 |
Function | Regulatory protein, which plays a central role in chromosome stability, in the p53/TP53 pathway, and DNA repair. Probably acts by blocking the action of key proteins. During the mitosis, it blocks Separase/ESPL1 function, preventing the proteolysis of the cohesin complex and the subsequent segregation of the chromosomes. At the onset of anaphase, it is ubiquitinated, conducting to its destruction and to the liberation of ESPL1. Its function is however not limited to a blocking activity, since it is required to activate ESPL1. Negatively regulates the transcriptional activity and related apoptosis activity of TP53. The negative regulation of TP53 may explain the strong transforming capability of the protein when it is overexpressed. May also play a role in DNA repair via its interaction with Ku, possibly by connecting DNA damage-response pathways with sister chromatid separation. |
Cellular Location | Cytoplasm. Nucleus. |
Tissue Location | Expressed at low level in most tissues, except in adult testis, where it is highly expressed. Overexpressed in many patients suffering from pituitary adenomas, primary epithelial neoplasias, and esophageal cancer. |
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Background
Regulatory protein, which plays a central role in chromosome stability, in the p53/TP53 pathway, and DNA repair. Probably acts by blocking the action of key proteins. During the mitosis, it blocks Separase/ESPL1 function, preventing the proteolysis of the cohesin complex and the subsequent segregation of the chromosomes. At the onset of anaphase, it is ubiquitinated, conducting to its destruction and to the liberation of ESPL1. Its function is however not limited to a blocking activity, since it is required to activate ESPL1. Negatively regulates the transcriptional activity and related apoptosis activity of TP53. The negative regulation of TP53 may explain the strong transforming capability of the protein when it is overexpressed. May also play a role in DNA repair via its interaction with Ku, possibly by connecting DNA damage-response pathways with sister chromatid separation.
References
Dominguez A.,et al.Oncogene 17:2187-2193(1998).
Mu Y.,et al.Submitted (SEP-1998) to the EMBL/GenBank/DDBJ databases.
Kakar S.S.,et al.Cytogenet. Cell Genet. 84:211-216(1999).
Kakar S.S.,et al.Gene 240:317-324(1999).
Zhang X.,et al.Mol. Endocrinol. 13:156-166(1999).
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