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Transcript 
a/b structures
Source: Introduction to Protein Structure by Branden & Tooze
Triosephosphate
isomerase
dehydrogenase
coenzyme-binding domain
Source: Introduction to Protein Structure by Branden & Tooze
b-a-b motif in a right-handed structure
Source: Introduction to Protein Structure by Branden & Tooze
a/b barrel
Source: Introduction to Protein Structure by Branden & Tooze
a/b barrel
Source: Introduction to Protein Structure by Branden & Tooze
Source: Introduction to Protein Structure by Branden & Tooze
An exception:
Methylmalonyl-coenzyme A mutase
Source: Introduction to Protein Structure by Branden & Tooze
Pyruvate kinase
Source: Introduction to Protein Structure by Branden & Tooze
Synthesis of Tryptophan
Source: Introduction to Protein Structure by Branden & Tooze
Phosphoribosyl Anthranilate (PRA) isomerase
& indoleglycerol phosphate (IBP) synthase
Source: Introduction to Protein Structure by Branden & Tooze
RuBisCo (ribulose bisphosphate carboxylase)
Source: Introduction to Protein Structure by Branden & Tooze
Leucine-rich motifa/b-horseshoe fold
Source: Introduction to Protein Structure by Branden & Tooze
Consensus amino acid sequence
& 2nd structure of the leucine-rich motifs
Source: Introduction to Protein Structure by Branden & Tooze
Ribonuclease inhibitor
Source: Introduction to Protein Structure by Branden & Tooze
Conserved leucine in the leucine-rich motif
Source: Introduction to Protein Structure by Branden & Tooze
Open twisted a/b structures
Source: Introduction to Protein Structure by Branden & Tooze
active site ～ crevice
Source: Introduction to Protein Structure by Branden & Tooze
active site ～ crevice
The crevices occur when the strand order
is reversed.
In topology diagram the connections from
the carboxy ends of two adjacent b
strands go in opposite directions, one to
the left and one to the right.
Source: Introduction to Protein Structure by Branden & Tooze
FMN-binding redox protein
flavodoxin
Adenylate kinase
Source: Introduction to Protein Structure by Branden & Tooze
Hexokinase
ATP-binding domain
Phosphoglycerate
mutase
Source: Introduction to Protein Structure by Branden & Tooze
Tyrosyl-tRNA synthetase (a/b + a)
Source: Introduction to Protein Structure by Branden & Tooze
Source: Introduction to Protein Structure by Branden & Tooze
Bound tyrosine to tyrosyl-tRNA synthetase
Source: Introduction to Protein Structure by Branden & Tooze
Tyrosyl adenylate -- tyrosyl-tRNA synthetase
Source: Introduction to Protein Structure by Branden & Tooze
Carboxypeptidase (mixed b sheet)
Source: Introduction to Protein Structure by Branden & Tooze
Zinc environment in Carboxypeptidase
Source: Introduction to Protein Structure by Branden & Tooze
Arabinose-binding protein
Source: Introduction to Protein Structure by Branden & Tooze
Arabinose-binding protein-L arabinose
Source: Introduction to Protein Structure by Branden & Tooze
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