Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1999-12-7
pubmed:abstractText
The betabellin structure is a de novo designed beta-sandwich protein consisting of two 32-residue beta sheets packed against one another by hydrophobic interactions. Betabellin 16S (B16S), a 32-residue peptide chain (HSLTAKIakLTFSIAahTYTCAVakYTAKVSH, where a is DAla, h is DHis, and k is DLys), did not have beta structure in water at pH 6.5. Air oxidation of B16S furnished betabellin 16D (B16D), a 64-residue disulfide-bridged two-chain protein, which also did not fold in water at pH 6.5. However, the extent of beta structure observed for B16D increased with pH and ionic strength of the solution and the B16D concentration as observed by circular dichroism spectropolarimetry. Transmission electron microscopy showed that B16D formed narrow fibrils that associated into broad ribbons in 5.0 mM Mops and 0.25 M NaCl at pH 6.9.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0006-291X
pubmed:author
pubmed:copyrightInfo
Copyright 1999 Academic Press.
pubmed:issnType
Print
pubmed:day
22
pubmed:volume
264
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
498-504
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Biophysical characterization of betabellin 16D: a beta-sandwich protein that forms narrow fibrils which associate into broad ribbons.
pubmed:affiliation
Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA. amareth@bu.edu
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.