Table 2.
Kinetics of the production and release of HP-CEs
Cleavage reaction | RAG | Cation | τHP-Pa (min) | τHP-Rb (min) |
---|---|---|---|---|
Single | c/cRAG | Mn2+ | 60 ± 5 | 120 ± 6 |
e/cRAG | Mn2+ | 10 ± 2 | τ1 12 ± 3; τ2 = 370 ± 30c | |
e/cRAG | Mg2+ | 60 ± 4 | 400 ± 14 | |
Coupled | c/cRAG | Mn2+ | NDd | 186 ± 10 |
c/cRAG | Mg2+ | ND | >600 | |
e/cRAG | Mn2+ | ND | τ1 12 ± 2; τ2 = 380 ± 25c | |
e/cRAG | Mg2+ | ND | >600 | |
c/cRAGe | Mg2+ | 60 ± 4 | 231 ± 4.7 | |
c/flRAGe | Mg2+ | 62 ± 3 | 198 ± 8.1 | |
c/flRAG + peptidee | Mg2+ | 52 ± 4 | 255 ± 4.8 |
aLifetime of HP-CE production, a measure of the rate of HP-CE production. The number given was calculated from the kinetic analysis of HP-CE production, as exemplified in Figures 2A and 7.
bLifetime obtained from FRET or anisotropy, a measure of the rate of HP-CE release, as exemplified in Figures 2A and 7.
cBi-phasic kinetics, in which τ1 is relevant to HP-CE release whereas τ2 may be caused by the generation of additional band as it is not correlated with τHP-P, i.e. HP-CE production rate (see Figure 2A).
dNot determined.
eThe cleavage reaction was conducted in the presence of 5% DMSO, which was found to cause reduction in τHP-P, as compared to the other listed reactions that were conducted in the absence of DMSO.