Specifications

UbcH1 (also known as E2-25K) is an E2 conjugation enzyme that is involved in the ubiquitylation of target substrates, along with E1 and E3 enzymes. Once an E1 is carrying an activated ubiquitin in a ubiquitin-E1 thiolester complex, this activated ubiquitin is transferred to the active site cysteine of the E2 to form a ubiquitin-E2 thiolester complex. With the aid of an E3, the activated ubiquitin is then targeted to a specific substrate lysine. UbcH1 is a biochemically important E2 due to its ability to form free K48-linked polyubiquitin chains in solution in the absence of an E3. This ability is attributed to UbcH1 possessing a C-terminal UBA domain, in addition to its E2 catalytic domain.

Info

Species	Human
Source	E. coli
Tag	His6
Molecular Weight	23,400.7 Da
Quantity	0.8 nmol, 3.0 nmol
Concentration	40 µM
Formulation
Storage	-80°C, avoid freeze/thaw cycles

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