Rapid Mapping of Protein Interactions Using Tag-Transfer Photocrosslinkers.
Rapid Mapping of Protein Interactions Using Tag-Transfer Photocrosslinkers.
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DOI:
10.1002/anie.201809149
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发表时间:
2018-12-17
期刊:
影响因子:
--
通讯作者:
Radford SE
中科院分区:
文献类型:
--
作者:
Horne JE;Walko M;Calabrese AN;Levenstein MA;Brockwell DJ;Kapur N;Wilson AJ;Radford SE
Analysing protein complexes by chemical crosslinking‐mass spectrometry (XL‐MS) is limited by the side‐chain reactivities and sizes of available crosslinkers, their slow reaction rates, and difficulties in crosslink enrichment, especially for rare, transient or dynamic complexes. Here we describe two new XL reagents that incorporate a methanethiosulfonate (MTS) group to label a reactive cysteine introduced into the bait protein, and a residue‐unbiased diazirine‐based photoactivatable XL group to trap its interacting partner(s). Reductive removal of the bait transfers a thiol‐containing fragment of the crosslinking reagent onto the target that can be alkylated and located by MS sequencing and exploited for enrichment, enabling the detection of low abundance crosslinks. Using these reagents and a bespoke UV LED irradiation platform, we show that maximum crosslinking yield is achieved within 10 seconds. The utility of this “tag and transfer” approach is demonstrated using a well‐defined peptide/protein regulatory interaction (BID80‐102/MCL‐1), and the dynamic interaction interface of a chaperone/substrate complex (Skp/OmpA).
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影响因子:
16.6
作者:
Manzi, Lucio;Barrow, Andrew S.;Scott, Daniel;Layfield, Robert;Wright, Timothy G.;Moses, John E.;Oldham, Neil J.
通讯作者:
Oldham, Neil J.
DOI:
10.1039/a707586c
发表时间:
1998-05-01
期刊:
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2
影响因子:
--
作者:
Admasu, A;Gudmundsdottir, AD;Crocker, PJ
通讯作者:
Crocker, PJ
DOI:
10.1074/mcp.m111.014126
发表时间:
2012-03
期刊:
Molecular & cellular proteomics : MCP
影响因子:
--
作者:
Leitner A;Reischl R;Walzthoeni T;Herzog F;Bohn S;Förster F;Aebersold R
通讯作者:
Aebersold R
影响因子:
14.8
作者:
通讯作者:
--
影响因子:
--
作者:
Gubbens, Jacob;Ruijter, Eelco;de Kroon, Anton I. P. M.
通讯作者:
de Kroon, Anton I. P. M.