Recombinant Human Securin protein (ab87664)
Key features and details
- Expression system: Escherichia coli
- Purity: > 80% SDS-PAGE
- Endotoxin level: < 1.000 Eu/µg
- Tags: His tag N-Terminus
- Suitable for: SDS-PAGE
Description
-
Product name
Recombinant Human Securin protein -
Purity
> 80 % SDS-PAGE.
Purified by using conventional chromatography techniques. -
Endotoxin level
< 1.000 Eu/µg -
Expression system
Escherichia coli -
Protein length
Full length protein -
Animal free
No -
Nature
Recombinant -
-
Species
Human -
Sequence
MGSSHHHHHH SSGLVPRGSH MATLIYVDKE NGEPGTRVVA KDGLKLGSGP SIKALDGRSQ VSTPRFGKTF DAPPALPKAT RKALGTVNRA TEKSVKTKGP LKQKQPSFSA KKMTEKTVKA KSSVPASDDA YPEIEKFFPF NPLDFESFDL PEEHQIAHLP LSGVPLMILD EERELEKLFQ LGPPSPVKMP SPPWESNLLQ SPSSILSTLD VELPPVCCDI DI -
Tags
His tag N-Terminus
-
Associated products
-
Related Products
Specifications
Our Abpromise guarantee covers the use of ab87664 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
-
Applications
SDS-PAGE
-
Form
Liquid -
Concentration information loading...
Preparation and Storage
-
Stability and Storage
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Avoid freeze / thaw cycle.
pH: 8.00
Constituents: 0.316% Tris HCl, 20% Glycerol (glycerin, glycerine), 0.58% Sodium chloride, 0.0017% PMSF, 0.029% EDTA
General Info
-
Alternative names
- AW555095
- C87862
- Cut2
see all -
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. -
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. -
Sequence similarities
Belongs to the securin family. -
Developmental stage
Low level during G1 and S phases. Peaks at M phase. During anaphase, it is degraded. -
Domain
The N-terminal destruction box (D-box) acts as a recognition signal for degradation via the ubiquitin-proteasome pathway.
The TEK-boxes are required for 'Lys-11'-linked ubiquitination and facilitate the transfer of the first ubiquitin and ubiquitin chain nucleation. TEK-boxes may direct a catalytically competent orientation of the UBE2C/UBCH10-ubiquitin thiolester with the acceptor lysine residue. -
Post-translational
modificationsPhosphorylated at Ser-165 by CDK1 during mitosis.
Phosphorylated in vitro by ds-DNA kinase.
Ubiquitinated through 'Lys-11' linkage of ubiquitin moieties by the anaphase promoting complex (APC) at the onset of anaphase, conducting to its degradation. 'Lys-11'-linked ubiquitination is mediated by the E2 ligase UBE2C/UBCH10. -
Cellular localization
Cytoplasm. Nucleus. - Information by UniProt
Protocols
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
Datasheets and documents
-
SDS download
-
Datasheet download
References (1)
ab87664 has been referenced in 1 publication.
- Lee SB et al. Regulated interaction of ID2 with the anaphase-promoting complex links progression through mitosis with reactivation of cell-type-specific transcription. Nat Commun 13:2089 (2022). PubMed: 35440621