1.0alpha7.dev.40.sent
sentence
The intracellular concentration of Ubc2 is consistently within the micromolar range, which is saturating with respect to the Km of 102 ± 13 nM for uncharged HsUbc2b binding to E1 and theKm of 54 ± 18 nM for HsUbc2b-ubiquitin thiolester binding to E3α.