Bethyl Laboratories
Rabbit anti-COBRA1 Antibody Affinity Purified
Primary
Catalog #A301-912A
TargetCOBRA1
HostRabbit
ClonalityPolyclonal
ReactivityHuman
ApplicationIHC, IP, WB
Image 1 of 2
local_shipping
Order within 9 hours and 12 minutes for shipment by today
Product Description
COBRA1 (Cofactor of BRCA1) is also known as NELFB (negative elongation factor E). NELFB is one of four subunits that make up the NELF transcription elongation factor. The four subunits of NELF are NELF A (WHSC2), NELFB, either NELFC or NELFD, and NELFE. NELF, along with DRB sensitivity-inducing factor (DSIF), functions to cause transcriptional pausing of RNA polymerase II. COBRA1 was originally identified in a yeast two-hybrid screen of a human ovary cDNA library using the BRCA COOH terminus repeat, BRCT1, as the bait protein. In this study, COBRA1 was found to be involved in BRCT1-mediated chromatin remodeling. COBRA1 has also been found to interact with several nuclear receptors such as ERalpha and androgen receptor to modulate their transcriptional activity.
Specifications
Clonality
Polyclonal
Host
Rabbit
Immunogen
Between 530 and C-terminus
Isotype
IgG
Reactivity
Human
Format
Whole IgG
Conjugate Type
Unconjugated
Purity
Antigen Affinity Purified
Concentration
200 µg/ml
Target Identity
TargetCOBRA1
Antigen Species
Human
Gene ID25920
Gene Symbol
NELFB
Gene Name
negative elongation factor complex member B
Uniprot IDQ8WX92
Protein Name
Negative elongation factor B
Alternate Names
Product Information
Applications
IHC, IP, WB
Buffer
Tris-buffered Saline containing 0.1% BSA and 0.09% Sodium Azide
Storage Conditions
2 - 8 °C
Physical State
Liquid
Shelf Life
1 year from date of receipt
Country of Origin
USA
Production & Epitope
Antibody was affinity purified using an epitope specific to COBRA1 immobilized on solid support.
The epitope recognized by A301-912A maps to a region between residue 530 and 580 of human cofactor of BRCA1 using the numbering given in entry NP_056271.2 (GeneID 25920).
Immunoglobulin concentration was determined using Beer’s Law where 1mg/mL IgG has an A280 of 1.4.
Applications
All western blot analysis is performed using 5% Milk-TBST for blocking and as antibody diluent. Primary antibody is incubated overnight.
Western blots of cell lysates are performed using Goat anti-Rabbit IgG Heavy and Light Chain Antibody (A120-101P).
Western blots of immunoprecipitates are performed using an anti-Rabbit IgG Light Chain HRP-conjugated antibody with 5% Normal Pig Serum (Cat. No. S100-020) added to the blocking buffer.
Immunohistochemistry (IHC)1:200 - 1:500. Epitope retrieval with citrate buffer pH 6.0 is recommended for FFPE tissue sections.
Immunoprecipitation (IP)6 µg/mg lysate
Western Blot (WB)1:2000 - 1:10,000
Documents
Product DatasheetPDF · A301-912A · Lot 1 (current lot)Open
Product DatasheetPDF · A301-912A · Lot 1 (current lot)Open
Safety Data SheetPDF · A301-912AOpen
Citations / Publications
Related Products
Services
Antibody Conjugation
Antibody and conjugate formats developed together, built to your specification.
Request Customization
Custom Monoclonal Antibody Discovery Services
Full custom monoclonal development, from immunization through validation.
Explore Monoclonal Development
VHH Discovery
Single-domain antibodies for structurally difficult targets a conventional monoclonal can't reach.
Explore VHH Discovery
Resources
Standard Western Blot Protocol
Read the Protocol
Immunoprecipitation Protocol
Read the Protocol
Simple Western™ Resources
Explore Simple Western™
1