Anti-Securin/PTTG1 Antibody Picoband®, Cy3 Conjugate

About this product

Boster Bio Anti-Securin/PTTG1 Antibody catalog # PA2240. Tested in WB applications. This antibody reacts with Human. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.

Specifications

Catalog number

PA2240-Cy3

Size / count

100 µg/Vial

Dry ice

No

Hazardous

No

Discontinued

No

Background

Securin, also known as pituitary tumor-transforming 1 or EAP1 is a protein that in humans is encoded by the PTTG1 gene. PTTG1 gene is mapped to 5q33.3. The encoded protein is a homolog of yeast securin proteins, which prevent separins from promoting sister chromatid separation. It is an anaphase-promoting complex (APC) substrate that associates with a separin until activation of the APC. The gene product has transforming activity in vitro and tumorigenic activity in vivo, and the gene is highly expressed in various tumors. The gene product contains 2 PXXP motifs, which are required for its transforming and tumorigenic activities, as well as for its stimulation of basic fibroblast growth factor expression. It also contains a destruction box (D box) that is required for its degradation by the APC. The acidic C-terminal region of the encoded protein can act as a transactivation domain. The gene product is mainly a cytosolic protein, although it partially localizes in the nucleus.

Synonyms

Securin;Esp1-associated protein;Pituitary tumor-transforming gene 1 protein;Tumor-transforming protein 1;hPTTG;PTTG1;EAP1, PTTG, TUTR1;

Gene Name

Securin

UniProt

O95997

Host

Rabbit

Reactivity

Human

Cross Reactivity

No cross-reactivity with other proteins

Immunogen

A synthetic peptide corresponding to a sequence at the C-terminus of human Securin, different from the related rat sequence by four amino acids, and from the related mouse sequence by five amino acids.

Clonality

Polyclonal

Tissue Specificity

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. .

Applications

WB

Purification

Immunogen affinity purified.

Concentration

Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.

Form

Lyophilized

Reconstitution

Add 0.2ml of distilled water will yield a concentration of 500ug/ml.

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. .

Components

Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3.

References & Citations

1. Holt, L. J., Krutchinsky, A. N., Morgan, D. O. Positive feedback sharpens the anaphase switch. Nature 454: 353-357, 2008. 2. Ying, H., Furuya, F., Zhao, L., Araki, O., West, B. L., Hanover, J. A., Willingham, M. C., Cheng, S. Aberrant accumulation of PTTG1 induced by a mutated thyroid hormone beta-receptor inhibits mitotic progression. J. Clin. Invest. 116: 2972-2984, 2006.

Storage Conditions

Store at -20℃ for one year from date of receipt. After reconstitution, at 4℃ for one month. It can also be aliquotted and stored frozen at -20℃ for six months. Avoid repeated freeze-thaw cycles.

Calculated Molecular Weight

22024 MW

Observed Molecular Weight

22 kDa

Fragment

Rabbit IgG

Specificity

No cross reactivity with other proteins.

Applications Notes

Western blot, 0.1-0.5μg/ml, Human<br>

Subcellular Location

Cytoplasm. Nucleus.

Sequence Similarities

Belongs to the securin family.

Protein Name

Securin