Optimized Protocol for the Incorporation of FDAA (HADA Labeling) for in situ Labeling of Peptidoglycan.
Optimized Protocol for the Incorporation of FDAA (HADA Labeling) for in situ Labeling of Peptidoglycan.
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用于肽聚糖原位标记的 FDAA(HADA 标记)的优化方案。
DOI:
10.21769/bioprotoc.3316
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发表时间:
2019
期刊:
影响因子:
0.8
通讯作者:
W. Vollmer
中科院分区:
文献类型:
--
作者:
K. Peters;M. Pazos;M. VanNieuwenhze;W. Vollmer
The essential peptidoglycan (PG) layer surrounds the cytoplasmic membrane in nearly all bacteria. It is needed to maintain the shape of the cell and protect it from lysis due to high turgor. Growth of the PG layer is a complex process that involves the activities of PG synthases and hydrolases during elongation and cell division. PG growth sites can be labeled by the recently developed fluorescent D-amino acid (FDAA) probes in a range of different bacteria. FDAAs are incorporated into PG by dd-transpeptidases (Penicillin-binding proteins, PBPs) or, if present, ld-transpeptidase (LDTs). Long-pulse in situ labeling of E. coli cells with the FDAA 7-hydroxycoumarincarbonylamino-D-alanine (HADA) is expected to result in a uniform label at the side wall of cells and enhanced label at cell division sites due to the intense PG synthesis. However, we observed reduced label at mid-cell when labeling E. coli cells with HADA. We reasoned that probe incorporated at cell division sites may be removed by PG hydrolases and modified the labeling protocol to better preserve PG-incorporated HADA for fluorescence microscopy. Here, we report the optimized HADA-labeling protocol by which cells retain an enhanced HADA signal at the division septum.
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DOI:
10.1002/anie.201206749
发表时间:
2012-12-07
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Kuru E;Hughes HV;Brown PJ;Hall E;Tekkam S;Cava F;de Pedro MA;Brun YV;VanNieuwenhze MS
通讯作者:
VanNieuwenhze MS
影响因子:
16.6
作者:
Radkov AD;Hsu YP;Booher G;VanNieuwenhze MS
通讯作者:
VanNieuwenhze MS
DOI:
--
发表时间:
1980
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Amanuma,H;Strominger,JL
通讯作者:
Strominger,JL
DOI:
10.1016/s0167-4838(02)00311-4
发表时间:
2002-06-03
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEIN STRUCTURE AND MOLECULAR ENZYMOLOGY
影响因子:
--
作者:
Stefanova, ME;Davies, C;Gutheil, WG
通讯作者:
Gutheil, WG
影响因子:
15
作者:
Lupoli, Tania J.;Tsukamoto, Hirokazu;Doud, Emma H.;Wang, Tsung-Shing Andrew;Walker, Suzanne;Kahne, Daniel
通讯作者:
Kahne, Daniel