Recombinant human Negative elongation factor B
Product Specifications
CAS Number
9000-83-3
Gene Name
Negative elongation factor complex member B
Gene Aliases
COBRA1; cofactor of BRCA1; negative elongation factor B; negative elongation factor protein B; NELF-B.
Gene ID
25920
Reactivity
Homo sapiens|Human
Target
Essential component of the NELF complex, a complex that negatively regulates the elongation of transcription by RNA polymerase II. The NELF complex, which acts via an association with the DSIF complex and causes transcriptional pausing, is counteracted by the P-TEFb kinase complex. The NELF complex is involved in HIV-1 latency possibly involving recruitment of PCF11 to paused RNA polymerase II. Binds RNA which may help to stabilize the NELF complex on nucleic acid. In vitro, binds weakly to the HIV-1 TAR RNA which is located in the long terminal repeat (LTR) of HIV-1. May be able to induce chromatin unfolding.
Type
Protein
Source
E.coli
Sequence
LGVANGEDLKETLTNCTEPLKAIEQFQTENGVLLPSLQSALPFLDLHGTPRLEFHQSVFDELRDKLLERVSAIASEGKAEERYKKLEDLLEKSFSLVKMPSLQPVVMCVMKHLPKVPEKKLKLVMADKELYRACAVEVKRQIWQDNQALFGDEVSPLLKQYILEKESALFSTELSVLHNFFSPSPKTRRQGE
Assay Protocol
Reconstitution & Storage Instructions Western Blotting/Immunoblotting (WB/IB) Protocol Immunohistochemistry (IHC) Protocol Immunocytochemistry (ICC) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Blocking Peptide Competition Protocol (BPCP) Immunoprecipitation (IP) Protocol Antibody Array (AA) Protocol Reconstitution & Storage Instructions
Reconstitution & Storage Instructions
Western Blotting/Immunoblotting (WB/IB) Protocol
Western Blotting/Immunoblotting (WB/IB) Protocol
Immunohistochemistry (IHC) Protocol
Immunohistochemistry (IHC) Protocol
Immunocytochemistry (ICC) Protocol
Immunocytochemistry (ICC) Protocol
Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol
Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol
Blocking Peptide Competition Protocol (BPCP)
Blocking Peptide Competition Protocol (BPCP)
Immunoprecipitation (IP) Protocol
Immunoprecipitation (IP) Protocol
Antibody Array (AA) Protocol
Antibody Array (AA) Protocol
Format
Liquid or Lyophilized powder
Buffer
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution
-20°C or -80°C
Molecular Weight
48.9 kDa
Protein Length
Recombinant
NCBI Gene Symbol
NELFB
Protein Name
Negative elongation factor B
Gene Name URL
NELFB
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