Validation Data Gallery
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Tested Applications
| Positive WB detected in | BxPC-3 cells, HeLa cells, HepG2 cells, MCF-7 cells, rat brain tissue |
| Positive IP detected in | mouse brain tissue |
| Positive IHC detected in | human urothelial carcinoma tissue Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0 |
| Positive IF/ICC detected in | BxPC-3 cells |
Recommended dilution
| Application | Dilution |
|---|---|
| Western Blot (WB) | WB : 1:1000-1:6000 |
| Immunoprecipitation (IP) | IP : 0.5-4.0 ug for 1.0-3.0 mg of total protein lysate |
| Immunohistochemistry (IHC) | IHC : 1:200-1:1000 |
| Immunofluorescence (IF)/ICC | IF/ICC : 1:10-1:100 |
| It is recommended that this reagent should be titrated in each testing system to obtain optimal results. | |
| Sample-dependent, Check data in validation data gallery. | |
Published Applications
| WB | See 3 publications below |
| IHC | See 2 publications below |
| IF | See 1 publications below |
Product Information
16418-1-AP targets NELFB in WB, IHC, IF/ICC, IP, ELISA applications and shows reactivity with human, mouse, rat samples.
| Tested Reactivity | human, mouse, rat |
| Cited Reactivity | human, mouse |
| Host / Isotype | Rabbit / IgG |
| Class | Polyclonal |
| Type | Antibody |
| Immunogen | NELFB fusion protein Ag9599 相同性解析による交差性が予測される生物種 |
| Full Name | cofactor of BRCA1 |
| Calculated molecular weight | 580aa,66 kDa; 475aa,54 kDa |
| Observed molecular weight | 66 kDa |
| GenBank accession number | BC011892 |
| Gene Symbol | NELFB |
| Gene ID (NCBI) | 25920 |
| RRID | AB_2276536 |
| Conjugate | Unconjugated |
| Form | Liquid |
| Purification Method | Antigen affinity purification |
| UNIPROT ID | Q8WX92 |
| Storage Buffer | PBS with 0.02% sodium azide and 50% glycerol , pH 7.3 |
| Storage Conditions | Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. |
Background Information
Cofactor of BRCA1 (COBRA1) was first identified as a BRCA1-interacting protein and subsequently found to be the B subunit of the negative elongation factor complex (NELF-B). Cobra1 is essential for early embryogenesis (PMID: 19340312). The MW of this protein is 66 kDa, and this antibody specially recognises the 66 kDa protein.
Protocols
| Product Specific Protocols | |
|---|---|
| WB protocol for NELFB antibody 16418-1-AP | Download protocol |
| IHC protocol for NELFB antibody 16418-1-AP | Download protocol |
| IF protocol for NELFB antibody 16418-1-AP | Download protocol |
| IP protocol for NELFB antibody 16418-1-AP | Download protocol |
| Standard Protocols | |
|---|---|
| Click here to view our Standard Protocols |
Publications
| Species | Application | Title |
|---|---|---|
Genes Dev High constitutive activity of a broad panel of housekeeping and tissue-specific cis-regulatory elements depends on a subset of ETS proteins. | ||
Nat Commun ERK-mediated NELF-A phosphorylation promotes transcription elongation of immediate-early genes by releasing promoter-proximal pausing of RNA polymerase II | ||
bioRxiv RNA polymerase II pausing is essential during spermatogenesis for appropriate gene expression and completion of meiosis | ||
J Biol Chem An Essential Signaling Function of Cytoplasmic NELFB is Independent of RNA Polymerase II Pausing | ||
Nat Commun RNA polymerase II pausing is essential during spermatogenesis for appropriate gene expression and completion of meiosis |