Mononucleosomes, Recombinant Human, Desthiobiotinylated

Catalogue Number: 16-0024-EPC

Manufacturer:EpiCypher
Shelf Life:6 months
Type:Nucleosome
Shipping Condition:Dry Ice
Unit(s): 50 ug

Description

Description: Mononucleosomes assembled from recombinant human histones expressed in E. coli (two each of histones H2A, H2B, H3.1, and H4 Accession numbers: H2A-P04908; H2B-O60814; H3.1-P68431; H4-P62805) wrapped by 147 base pairs of 601 positioning sequence DNA. The nucleosome is the basic subunit of chromatin. The 601 sequence, identified by Lowary and Widom [1], is a 147-base pair sequence that has high affinity for histone octamers and is useful for nucleosome assembly and contains a 5' desthiobiotin-TEG group. Desthiobiotin has a weaker affinity (Kd = 10-11) for avidin-family proteins than does biotin (Kd = 10-15).

Additional Text

Application Notes

Mononucleosomes, Human Recombinant Desthiobiotinylated are highly purified and suitable for use as substrates in enzyme screening assays, structural studies, or effector protein binding experiments. The weaker affinity of desthiobiotin for avidin-family proteins allows nucleosomes to be eluted via addition of free biotin. The ability for these nucleosomes to be recovered intact is useful in many aspects of chromatin biology.

Storage Note

Stable for six (6) months at -80°C from date of receipt. For best results, aliquot and avoid multiple freeze/thaws.