PTs bind gp120 with a weak structuring effect, which has impeded efforts toward crystallization of a PT gp120 complex.
19ThxC was used in place of 19TεC as AlkA binds hypoxanthine with a weaker affinity (data not shown), making the pyrrolidine DNA a better inhibitor.
While an anti-BPA single-stranded DNA aptamer was bound with BPA, a weak fluorescence signal was observed upon the addition of SYBR Green-I (SG-I), which is specific to a duplex region of the free aptamer.
Interestingly, Bacillus subtilis GluRS, with an identical ZB-motif as Ec(Te -GluRS (CxCxnYx3H) also binds Te -GluRSut with a weak affinity as evident from the faCxCxnYx3Hnly 0.6 moles of zinc (per mole of protein) walsoound to bindsotoin-bound [ 9].
Finally, addition of a CpxI fragment spanning only the accessory helix [CpxI(26-48)] caused practically no changes on the H-N HSQC spectrum of H,N-SNC-SCΔ62, confirming that the accessory helix does not bind by itself to the truncated SNARE complex or binds with extremely weak affinity.
When n a i = M, the a-th protein binds with the weakest affinity.
We obtained two X-ray crystallographic structures: the first with a weak phthalimidic inhibitor bound in one subunit and 5-hydroxymethylene-6-hydrofolic acid (5-HMHF) in the other subunit; a second X-ray structure complex with methotrexate.
Buprenorphine, a partial agonist of the μ-opioid receptor, binds with weak morphine-like activity and is used clinically as an analgesic in pain management and as an alternative to methadone in the treatment of opioid dependence.
F152 displays the weakest STD factor and binds with a 3.3±0.6 mM affinity to PRDX5, whereas F090 has the strongest STD factor and a 1.2±0.4 mM affinity for the protein.
Moreover, the data reveal the high-affinity nature of the UP1 SL3ESS3 interaction derives from more than a single-site interaction because the construct with the weakest affinity (A8458C) still binds with a Kd in the high nanomolar range and approximately 13-fold tighter than the ESS3b loop.
