Recombinant Human RB1

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935106861
info@markelab.com
name
Recombinant Human RB1
category
Proteins and Peptides
provider
FineTest
reference
P4529
tested applications
Western Blot, ELISA

Documents del producto

Instrucciones
Data sheet
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Product specifications

Category
Proteins and Peptides
Host
E.Coli
Reactivity
Human
Assay Data
Centrifuge the vial before opening, reconstitute in sterile distilled water to a concentration of 0.1-1 mg/ml by gently pipetting 2-3 times, don't vortex.
Observed MW
45.7 kDa
Expression
372-787
Purity
Greater than 90% as determined by SDS-PAGE.
Size 1
50μg
Size 2
200μg
Size 3
1mg
Form
Lyophilized powder
Tested Applications
Western Blot, ELISA
Buffer
Lyophilized from a 0.2 μm filtered solution in 10 mM Hepes, 500 mM NaCl with 5% trehalose, pH 7.4.
Availability
3-4 weeks
Storage
The lyophilized protein is stable at -20 °C for up to 1 year. After reconstitution, the protein solution is stable at -20 to -80 °C for 3 months or 1 week at 2 to 8 °C under sterile conditions. For extended storage, it is recommended to further dilute in working aliquots, avoid repeated freeze/thaw cycle.
UniProt ID
P06400
Alias
Exon 17 tumor GOS561 substitution mutation causes premature stop, GOS563 exon 17 substitution mutation causes premature stop, OSRC, Osteosarcoma, p105-Rb, P105RB, PP105, pp110, PPP1R130, pRb, Prepro retinoblastoma associated protein, Protein phosphatase 1 regulatory subunit 130
Background
Protein RB1
Status
RUO
Note
Tag : N-terminal His Tag or N-terminal His-IF2DI Tag, determined during production process

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Key regulator of entry into cell division that acts as a tumor suppressor. Promotes G0-G1 transition when phosphorylated by CDK3/cyclin-C. Acts as a transcription repressor of E2F1 target genes. The underphosphorylated, active form of RB1 interacts with E2F1 and represses its transcription activity, leading to cell cycle arrest. Directly involved in heterochromatin formation by maintaining overall chromatin structure and, in particular, that of constitutive heterochromatin by stabilizing histone methylation. Recruits and targets histone methyltransferases SUV39H1, KMT5B and KMT5C, leading to epigenetic transcriptional repression. Controls histone H4 'Lys-20' trimethylation. Inhibits the intrinsic kinase activity of TAF1. Mediates transcriptional repression by SMARCA4/BRG1 by recruiting a histone deacetylase(HDAC) complex to the c-FOS promoter. In resting neurons, transcription of the c-FOS promoter is inhibited by BRG1-dependent recruitment of a phospho-RB1-HDAC1 repressor complex. Upon calcium influx, RB1 is dephosphorylated by calcineurin, which leads to release of the repressor complex(By similarity). In case of viral infections, interactions with SV40 large T antigen, HPV E7 protein or adenovirus E1A protein induce the disassembly of RB1-E2F1 complex thereby disrupting RB1's activity.

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