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Engineering the filamentous molecula...

University of California, Berkeley.

Engineering the filamentous molecular chaperone gamma prefoldin for construction of protein nanostructures.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Engineering the filamentous molecular chaperone gamma prefoldin for construction of protein nanostructures.
作者:	Whitehead, Timothy Andrew.
面頁冊數:	165 p.
附註:	Adviser: Douglas S. Clark.
附註:	Source: Dissertation Abstracts International, Volume: 69-09, Section: B, page: 5609.
Contained By:	Dissertation Abstracts International69-09B.
標題:	Engineering, Chemical.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3331839
ISBN:	9780549835622

Engineering the filamentous molecular chaperone gamma prefoldin for construction of protein nanostructures.
Whitehead, Timothy Andrew.

Engineering the filamentous molecular chaperone gamma prefoldin for construction of protein nanostructures. - 165 p.

Adviser: Douglas S. Clark.

Thesis (Ph.D.)--University of California, Berkeley, 2008.

For the overall purpose of devising a controllable template for the construction of biomaterials, a capping protein was rationally designed to control the filament length over multiple length scales. A step-wise polymerization model of filament formation was developed that quantitatively describes the resulting distributions of filaments for lengths ranging from less than 10 nm to over 100 nm. The versatility of the gamma PFD was further demonstrated by generating a series of narrowly-sized hybrid filaments containing functional peptide fusion partners, illustrating that structure and function can be designed into the gamma PFD as independent and separable components. Implications of the design of the capping protein with regard to evolution of protein-protein association sites are also discussed.

ISBN: 9780549835622Subjects--Topical Terms:

226989
Engineering, Chemical.

Engineering the filamentous molecular chaperone gamma prefoldin for construction of protein nanostructures.
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245 1 0 $a Engineering the filamentous molecular chaperone gamma prefoldin for construction of protein nanostructures.
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502 $a Thesis (Ph.D.)--University of California, Berkeley, 2008.
520 $a For the overall purpose of devising a controllable template for the construction of biomaterials, a capping protein was rationally designed to control the filament length over multiple length scales. A step-wise polymerization model of filament formation was developed that quantitatively describes the resulting distributions of filaments for lengths ranging from less than 10 nm to over 100 nm. The versatility of the gamma PFD was further demonstrated by generating a series of narrowly-sized hybrid filaments containing functional peptide fusion partners, illustrating that structure and function can be designed into the gamma PFD as independent and separable components. Implications of the design of the capping protein with regard to evolution of protein-protein association sites are also discussed.
520 $a Protein design has been used to develop new macromolecular protein structures like bundled filaments and micelles, but the structures are fundamentally limited by complexity, functionality, and recombinant expression levels. A combinatorial protein engineering approach was undertaken to design specifically interlocking proteins derived from the natural filamentous protein gamma prefoldin. Included with the rational design of two cross-linked PFD monomers, this approach enables creation of a diverse array of one dimensional and two-dimensional structures like square, hexagonal, and octagonal pores, and protein lattices of various repeat lengths.
520 $a Proteins have the potential to direct the assembly of nanostructured materials and impart unique functions to such systems owing to their size, shape, and bioactivity. However, a current problem with the use of proteins as structural scaffolds is the controllable design of new and robust protein shapes, as well as generating stable oligomeric precursors. An extraordinarily stable filamentous protein, gamma prefoldin (gamma PFD), from the hyperthermophile Methanocaldococcus jannaschii was discovered and characterized. Prefoldin is a molecular chaperone found in the domains eukarya and archaea that acts in conjunction with Group II chaperonin to correctly fold other nascent proteins. gamma PFD was subcloned and expressed in Eschericia coli along with its homologs alpha and beta PFD. gamma PFD would not assemble with either protein, instead forming long filaments of defined dimensions with lengths exceeding 1 microm. A possible molecular model for filament assembly is discussed.
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