NMR assignments for monomeric phage L decoration protein.
NMR assignments for monomeric phage L decoration protein.
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DOI:
10.1007/s12104-018-9836-1
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发表时间:
2018-10
影响因子:
0.9
通讯作者:
Alexandrescu AT
中科院分区:
文献类型:
--
作者:
Newcomer RL;Belato HB;Teschke CM;Alexandrescu AT
Phage L encodes a trimeric 43 kDa decoration protein (Dec) that noncovalently binds and stabilizes the capsids of the homologous phages L and P22 in vitro. At physiological pH Dec was unsuitable for NMR. We were able to obtain samples amenable for NMR spectroscopy by unfolding Dec to pH 2 and refolding it to pH 4. Our unfolding/refolding protocol con verted trimeric Dec to a folded 14.4 kDa monomer. We verified that the acid-unfolding protocol did not perturb the secondary structure, or the capsid-binding function of refolded Dec. We were able to obtain complete 1H, 15N, and 13C assignments for the Dec monomer, as well as information on its secondary structure and dynamics based on chemical shift assignments. The assigned NMR spectrum is being used to determine the three-dimensional structure of Dec, which is important for understanding how the trimer binds phage capsids and for the use of the protein as a platform for phage-display nanotechnology.
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影响因子:
3.2
作者:
Gilcrease, EB;Winn-Stapley, DA;Casjens, SR
通讯作者:
Casjens, SR
影响因子:
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DOI:
10.1007/978-1-4939-2239-0_2
发表时间:
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期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
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通讯作者:
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