Targeting Phosphotyrosine in Native Proteins with Conditional, Bispecific Antibody Traps.
Targeting Phosphotyrosine in Native Proteins with Conditional, Bispecific Antibody Traps.
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DOI:
10.1021/jacs.0c08458
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发表时间:
2020-10-14
影响因子:
15
通讯作者:
Wells JA
中科院分区:
文献类型:
--
作者:
Zhou XX;Bracken CJ;Zhang K;Zhou J;Mou Y;Wang L;Cheng Y;Leung KK;Wells JA
Engineering sequence-specific antibodies (Abs) against phosphotyrosine (pY) motifs embedded in folded polypeptides remains highly challenging because of the stringent requirement for simultaneous recognition of the pY motif and the surrounding folded protein epitope. Here, we present a method named phosphotyrosine Targeting by Recombinant Ab Pair, or pY-TRAP, for in vitro engineering of binders for native pY proteins. Specifically, we create the pY protein by unnatural amino acid misincorporation, mutagenize a universal pY-binding Ab to create a first binder B1 for the pY motif on the pY protein, and then select against the B1−pY protein complex for a second binder B2 that recognizes the composite epitope of B1 and the pY-containing protein complex. We applied pY-TRAP to create highly specific binders to folded Ub-pY59, a rarely studied Ub phosphoform exclusively observed in cancerous tissues, and ZAP70-pY248, a kinase phosphoform regulated in feedback signaling pathways in T cells. The pY-TRAPs do not have detectable binding to wild-type proteins or to other pY peptides or proteins tested. This pY-TRAP approach serves as a generalizable method for engineering sequence-specific Ab binders to native pY proteins.
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影响因子:
14.8
作者:
Hoppmann C;Wong A;Yang B;Li S;Hunter T;Shokat KM;Wang L
通讯作者:
Wang L
DOI:
10.1007/978-1-61779-024-9_1
发表时间:
2011-01-01
期刊:
SIGNAL TRANSDUCTION IMMUNOHISTOCHEMISTRY: METHODS AND PROTOCOLS
影响因子:
--
作者:
Brumbaugh, Kathy;Johnson, Wade;Campos-Gonzalez, Roberto
通讯作者:
Campos-Gonzalez, Roberto
影响因子:
3
作者:
Durek P;Schudoma C;Weckwerth W;Selbig J;Walther D
通讯作者:
Walther D
影响因子:
14.9
作者:
Hornbeck PV;Kornhauser JM;Tkachev S;Zhang B;Skrzypek E;Murray B;Latham V;Sullivan M
通讯作者:
Sullivan M
DOI:
10.1074/mcp.o115.052209
发表时间:
2015-10
期刊:
Molecular & cellular proteomics : MCP
影响因子:
--
作者:
Hornsby M;Paduch M;Miersch S;Sääf A;Matsuguchi T;Lee B;Wypisniak K;Doak A;King D;Usatyuk S;Perry K;Lu V;Thomas W;Luke J;Goodman J;Hoey RJ;Lai D;Griffin C;Li Z;Vizeacoumar FJ;Dong D;Campbell E;Anderson S;Zhong N;Gräslund S;Koide S;Moffat J;Sidhu S;Kossiakoff A;Wells J
通讯作者:
Wells J