Linked Life Data

9811837

Source:http://linkedlifedata.com/resource/pubmed/id/9811837

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
23
pubmed:dateCreated
1998-12-16
pubmed:abstractText
The present paper describes the total chemical synthesis of the precursor molecule of the Aequorea green fluorescent protein (GFP). The molecule is made up of 238 amino acid residues in a single polypeptide chain and is nonfluorescent. To carry out the synthesis, a procedure, first described in 1981 for the synthesis of complex peptides, was used. The procedure is based on performing segment condensation reactions in solution while providing maximum protection to the segment. The effectiveness of the procedure has been demonstrated by the synthesis of various biologically active peptides and small proteins, such as human angiogenin, a 123-residue protein analogue of ribonuclease A, human midkine, a 121-residue protein, and pleiotrophin, a 136-residue protein analogue of midkine. The GFP precursor molecule was synthesized from 26 fully protected segments in solution, and the final 238-residue peptide was treated with anhydrous hydrogen fluoride to obtain the precursor molecule of GFP containing two Cys(acetamidomethyl) residues. After removal of the acetamidomethyl groups, the product was dissolved in 0.1 M Tris. HCl buffer (pH 8.0) in the presence of DTT. After several hours at room temperature, the solution began to emit a green fluorescence (lambdamax = 509 nm) under near-UV light. Both fluorescence excitation and fluorescence emission spectra were measured and were found to have the same shape and maxima as those reported for native GFP. The present results demonstrate the utility of the segment condensation procedure in synthesizing large protein molecules such as GFP. The result also provides evidence that the formation of the chromophore in GFP is not dependent on any external cofactor.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-1347277, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-1478787, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-2088927, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-3293801, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-4151620, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-6128025, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-6882437, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-7306668, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-7809066, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-7880964, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-8082767, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-8137953, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-8448132, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-8942983, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-8994830, http://linkedlifedata.com/resource/pubmed/commentcorrection/9811837-9225243
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0027-8424
pubmed:author
pubmed:issnType
Print
pubmed:day
10
pubmed:volume
95
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
13549-54
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Chemical synthesis of the precursor molecule of the Aequorea green fluorescent protein, subsequent folding, and development of fluorescence.
pubmed:affiliation
Peptide Institute, Protein Research Foundation, Minoh-shi, Osaka 562, Japan.
pubmed:publicationType
Journal Article