Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
22
pubmed:dateCreated
1991-7-2
pubmed:abstractText
Protein G is a member of a class of cell surface bacterial proteins from Streptococcus that bind IgG with high affinity. A fragment of molecular mass 6988, which retains IgG-binding activity, has been generated by proteolytic digestion and analyzed by 1H NMR. Two-dimensional DQF-COSY, TOCSY, and NOESY spectra have been employed to assign the 1H NMR spectrum of the peptide. Elements of regular secondary structure have been identified by using nuclear Overhauser enhancement, coupling constant, and amide proton exchange data. The secondary structure consists of a central alpha-helix (Ala28-Val44), flanked by two portions of beta-sheet (Val5-Val26 and Asp45-Lys62). This is a fundamentally different arrangement of secondary structure from that of protein A, which is made up of three consecutive alpha-helices in free solution (Torigoe et al., 1990). We conclude that the molecular mechanisms underlying the association of protein A and protein G with IgG are different.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0006-2960
pubmed:author
pubmed:issnType
Print
pubmed:day
4
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5335-40
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Sequential 1H NMR assignments and secondary structure of an IgG-binding domain from protein G.
pubmed:affiliation
Biological NMR Centre, University of Leicester, U.K.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't