2011
DOI: 10.1002/anie.201105837
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A One‐Pot Three‐Segment Ligation Strategy for Protein Chemical Synthesis

Abstract: Three in one: Native chemical ligation (NCL) and bis(2‐sulfanylethyl)amido (SEA) ligation allow the one‐pot assembly of three peptide segments in the N‐to‐C direction. The SEA group (see picture, blue) is switched off by intramolecular disulfide bond formation during NCL. Then, a phosphine switches it on to trigger the second SEA ligation step. The K1 domain of the hepatocyte growth factor was synthesized and found to be biologically active.

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Cited by 129 publications
(93 citation statements)
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“…How these properties can be exploited for designing efficient sequential ligation strategies will be discussed later in Section 3.3. 31 2. Assembly of three segments in the C-to-N direction Examination of the numerous examples of total protein synthesis reported to date reveals that the assembly was usually achieved by sequential NCL of three unprotected peptide segments in the C-to-N direction.…”
Section: Native Peptide Ligation Methodsmentioning
confidence: 99%
“…How these properties can be exploited for designing efficient sequential ligation strategies will be discussed later in Section 3.3. 31 2. Assembly of three segments in the C-to-N direction Examination of the numerous examples of total protein synthesis reported to date reveals that the assembly was usually achieved by sequential NCL of three unprotected peptide segments in the C-to-N direction.…”
Section: Native Peptide Ligation Methodsmentioning
confidence: 99%
“…Other major tools are chemoselective peptide bond forming reactions which enable the coupling of unprotected peptide segments in water. 13,[16][17][18][19][20] While recent advances have led to the development of efficient one-pot three-segment sequential assembly methods, 12,15,[21][22][23] the ligation of more than three segments usually involves time-consuming intermediate isolation or purication steps, accompanied by signicant material losses. 9 The ligation of two peptide segments potentially gives access to polypeptides composed of up to 100 amino acid residues, considering the current limits of SPPS.…”
Section: Introductionmentioning
confidence: 99%
“…[10] Crambin with a V15A mutation has been frequently used as a standard to test new methods for chemical protein synthesis. [3, 4b, 11] Our synthetic strategy is shown in Figure 2 A, where [V15A]-crambin was divided into four peptide segments (10,8,5''', and 6). All the peptide thioesters are prepared through activation and thiolysis of the corresponding peptide hydrazides.…”
mentioning
confidence: 99%