Sökning: onr:"swepub:oai:DiVA.org:kth-10016" >
Engineering of a fe...
-
Jonsson, Andreas,1974-KTH,Molekylär Bioteknologi,Biotherapy and Bacterial Display
(författare)
Engineering of a femtomolar affinity binding protein to human serum albumin
- Artikel/kapitelEngelska2008
Förlag, utgivningsår, omfång ...
-
2008-05-13
-
Oxford University Press (OUP),2008
-
printrdacarrier
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:kth-10016
-
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10016URI
-
https://doi.org/10.1093/protein/gzn028DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
QC 20100722
-
We describe the development of a novel serum albumin binding protein showing an extremely high affinity (K(D)) for HSA in the femtomolar range. Using a naturally occurring 46-residue three-helix bundle albumin binding domain (ABD) of nanomolar affinity for HSA as template, 15 residues were targeted for a combinatorial protein engineering strategy to identify variants showing improved HSA affinities. Sequencing of 55 unique phage display-selected clones showed a strong bias for wild-type residues at nine positions, whereas various changes were observed at other positions, including charge shifts. Additionally, a few non-designed substitutions appeared. On the basis of the sequences of 12 variants showing high overall binding affinities and slow dissociation rate kinetics, a set of seven 'second generation' variants were constructed. One variant denoted ABD035 displaying wild-type-like secondary structure content and excellent thermal denaturation/renaturation properties showed an apparent affinity for HSA in the range of 50-500 fM, corresponding to several orders of magnitude improvement compared with the wild-type domain. The ABD035 variant also showed an improved affinity toward serum albumin from a number of other species, and a capture experiment involving human serum indicated that the selectivity for serum albumin had not been compromised from the affinity engineering.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Dogan, JakobKTH,Molekylär Bioteknologi(Swepub:kth)u1xpotzq
(författare)
-
Harne, Nina
(författare)
-
Abrahmsén, Lars
(författare)
-
Nygren, Per-ÅkeKTH,Molekylär Bioteknologi(Swepub:kth)u1zhverl
(författare)
-
KTHMolekylär Bioteknologi
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Protein Engineering Design & Selection: Oxford University Press (OUP)21:8, s. 515-5271741-01261741-0134
Internetlänk
Hitta via bibliotek
Till lärosätets databas