
Size: 200ug. Other sizes are also available. Please Inquire.
In Stock: No
Lead time: 10-20 working days
Research Topic: Transcription
Uniprot ID: P20290
Gene Names: BTF3
Organism: Homo sapiens (Human)
AA Sequence: TIMNQEKLAKLQAQVRIGGKGTARRKKKVVHRTATADDKKLQFSLKKLGVNNISGIEEVNMFTNQGTVIHFNNPKVQASLAANTFTITGHAETKQLTEMLPSILNQLGADSLTSLRRLAEALPKQSVDGKAPLATGEDDDDEVPDLVENFDEASKNEAN
Expression Region: 48-206aa
Sequence Info: Partial
Source: E.coli
Tag Info: N-terminal GST-tagged
MW: 44.3 kDa
Alternative Name(s): Nascent polypeptide-associated complex subunit beta ;NAC-betaRNA polymerase B transcription factor 3
Relevance: When associated with NACA, prevents inappropriate targeting of non-secretory polypeptides to the endoplasmic reticulum (ER). Binds to nascent polypeptide chains as they erge from the ribosome and blocks their interaction with the signal recognition particle (SRP), which normally targets nascent secretory peptides to the ER. BTF3 is also a general transcription factor that can form a stable complex with RNA polymerase II. Required for the initiation of transcription.
Reference: Sequencing and expression of complementary DNA for the general transcription factor BTF3.Zheng X.M., Black D., Chambon P., Egly J.-M.Nature 344:556-559(1990)
Purity: Greater than 90% as determined by SDS-PAGE.
Storage Buffer: Tris-based buffer,50% glycerol
Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃.
Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.