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3HOJ

Crystal Structure of a Novel Engineered Retroaldolase: RA-22

Replaces:  3B5V
Summary for 3HOJ
Entry DOI10.2210/pdb3hoj/pdb
Related3B5L
DescriptorRETROALDOLASE-22 (2 entities in total)
Functional Keywordstim barrel, retroaldolase, engineered computationally designed, lyase
Biological sourceartificial gene
Total number of polymer chains1
Total formula weight28456.82
Authors
Stoddard, B.L.,Doyle, L.A. (deposition date: 2009-06-02, release date: 2009-08-25, Last modification date: 2024-02-21)
Primary citationJiang, L.,Althoff, E.A.,Clemente, F.R.,Doyle, L.,Rothlisberger, D.,Zanghellini, A.,Gallaher, J.L.,Betker, J.L.,Tanaka, F.,Barbas, C.F.,Hilvert, D.,Houk, K.N.,Stoddard, B.L.,Baker, D.
De Novo Computational Design of Retro-Aldol Enzymes
Science, 319:1387-1391, 2008
Cited by
PubMed Abstract: The creation of enzymes capable of catalyzing any desired chemical reaction is a grand challenge for computational protein design. Using new algorithms that rely on hashing techniques to construct active sites for multistep reactions, we designed retro-aldolases that use four different catalytic motifs to catalyze the breaking of a carbon-carbon bond in a nonnatural substrate. Of the 72 designs that were experimentally characterized, 32, spanning a range of protein folds, had detectable retro-aldolase activity. Designs that used an explicit water molecule to mediate proton shuffling were significantly more successful, with rate accelerations of up to four orders of magnitude and multiple turnovers, than those involving charged side-chain networks. The atomic accuracy of the design process was confirmed by the x-ray crystal structure of active designs embedded in two protein scaffolds, both of which were nearly superimposable on the design model.
PubMed: 18323453
DOI: 10.1126/SCIENCE.1152692
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (2.2 Å)
Structure validation

238895

数据于2025-07-16公开中

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