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Mouse Anti-ELOB (AA 9-119) Recombinant Antibody (CBFYE-0800) (CBMAB-E1248-FY)


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Summary

Host Animal
Mouse
Specificity
Human, Rat
Clone
CBFYE-0800
Antibody Isotype
IgG2a, κ
Application
ELISA, IF, WB

Basic Information

Immunogen
Partial recombinant corresponding to aa9-119 from human TCEB2 with GST tag. MW of the GST tag alone is 26kD.
Specificity
Human, Rat
Antibody Isotype
IgG2a, κ
Clonality
Monoclonal
Application Notes
The COA includes recommended starting dilutions, optimal dilutions should be determined by the end user.

Formulations & Storage [For reference only, actual COA shall prevail!]

Format
Liquid
Buffer
PBS, pH 7.2
Storage
Store at +4°C short term (1-2 weeks). Aliquot and store at -20°C long term. Avoid repeated freeze/thaw cycles.
Epitope
AA 9-119

Target

Full Name
Elongin B
Introduction
This gene encodes the protein elongin B, which is a subunit of the transcription factor B (SIII) complex. The SIII complex is composed of elongins A/A2, B and C. It activates elongation by RNA polymerase II by suppressing transient pausing of the polymerase at many sites within transcription units. Elongin A functions as the transcriptionally active component of the SIII complex, whereas elongins B and C are regulatory subunits. Elongin A2 is specifically expressed in the testis, and capable of forming a stable complex with elongins B and C. The von Hippel-Lindau tumor suppressor protein binds to elongins B and C, and thereby inhibits transcription elongation. Two alternatively spliced transcript variants encoding different isoforms have been described for this gene. Pseudogenes have been identified on chromosomes 11 and 13.
Entrez Gene ID
Human6923
Rat81807
UniProt ID
HumanQ15370
RatP62870
Alternative Names
Elongin B; Transcription Elongation Factor B (SIII), Polypeptide 2 (18kDa, Elongin B); RNA Polymerase II Transcription Factor SIII Subunit B; Transcription Elongation Factor B Polypeptide 2; Transcription Elongation Factor B Subunit 2; Elongin 18 KDa Subunit; SIII P18
Research Area
SIII, also known as elongin, is a general transcription elongation factor that increases the RNA polymerase II transcription elongation past template-encoded arresting sites. Subunit A is transcriptionally active and its transcription activity is strongly enhanced by binding to the dimeric complex of the SIII regulatory subunits B and C (elongin BC complex) (PubMed:7638163).

In embryonic stem cells, the elongin BC complex is recruited by EPOP to Polycomb group (PcG) target genes in order generate genomic region that display both active and repressive chromatin properties, an important feature of pluripotent stem cells (By similarity).

Core component of multiple cullin-RING-based ECS (ElonginB/C-CUL2/5-SOCS-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of target proteins (PubMed:10205047, PubMed:12004076, PubMed:12050673, PubMed:15590694, PubMed:26138980, PubMed:29779948, PubMed:29775578).

This includes the von Hippel-Lindau ubiquitination complex CBC(VHL) (PubMed:10205047, PubMed:12004076, PubMed:12050673, PubMed:15590694).

By binding to BC-box motifs it seems to link target recruitment subunits, like VHL and members of the SOCS box family, to Cullin/RBX1 modules that activate E2 ubiquitination enzymes (PubMed:10205047, PubMed:12004076, PubMed:12050673, PubMed:15590694).

A number of ECS complexes (containing either KLHDC2, KLHDC3, KLHDC10, APPBP2, FEM1A, FEM1B or FEM1C as substrate-recognition component) are part of the DesCEND (destruction via C-end degrons) pathway, which recognizes a C-degron located at the extreme C terminus of target proteins, leading to their ubiquitination and degradation (PubMed:26138980, PubMed:29779948, PubMed:29775578).
Biological Process
Positive regulation of proteasomal ubiquitin-dependent protein catabolic process Source: FlyBase
Protein-containing complex assembly Source: ProtInc
Protein ubiquitination Source: UniProtKB-UniPathway
Transcription elongation from RNA polymerase II promoter Source: ProtInc
Cellular Location
Nucleus
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For research use only. Not intended for any clinical use.

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