This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.


Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


1itz

From Proteopedia

Revision as of 17:24, 2 May 2008 by OCA (Talk | contribs)
Jump to: navigation, search

Template:STRUCTURE 1itz

Maize Transketolase in complex with TPP


Overview

The gene specifying plastid transketolase (TK) of maize (Zea mays) was cloned from a cDNA library by southern blotting using a heterologous probe from sorghum (Sorghum bicolor). A recombinant fusion protein comprising thioredoxin of Escherichia coli and mature TK of maize was expressed at a high level in E. coli and cleaved with thrombin, affording plastid TK. The protein in complex with thiamine pyrophoshate was crystallized, and its structure was solved by molecular replacement. The enzyme is a C2 symmetric homodimer closely similar to the enzyme from yeast (Saccharomyces cerevisiae). Each subunit is folded into three domains. The two topologically equivalent active sites are located in the subunit interface region and resemble those of the yeast enzyme.

About this Structure

1ITZ is a Single protein structure of sequence from Zea mays. Full crystallographic information is available from OCA.

Reference

Structure and properties of an engineered transketolase from maize., Gerhardt S, Echt S, Busch M, Freigang J, Auerbach G, Bader G, Martin WF, Bacher A, Huber R, Fischer M, Plant Physiol. 2003 Aug;132(4):1941-9. PMID:12913150 Page seeded by OCA on Fri May 2 20:24:39 2008

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools