1jxc
From Proteopedia
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'''Minimized NMR structure of ATT, an Arabidopsis trypsin/chymotrypsin inhibitor''' | '''Minimized NMR structure of ATT, an Arabidopsis trypsin/chymotrypsin inhibitor''' | ||
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[[Category: Markley, J L.]] | [[Category: Markley, J L.]] | ||
[[Category: Zhao, Q.]] | [[Category: Zhao, Q.]] | ||
| - | [[Category: | + | [[Category: Att]] |
| - | [[Category: | + | [[Category: Center for eukaryotic structural genomic]] |
| - | [[Category: | + | [[Category: Cesg]] |
| - | [[Category: | + | [[Category: Chymotrypsin inhibitor]] |
| - | [[Category: | + | [[Category: Hydrolase inhibitor]] |
| - | [[Category: | + | [[Category: Protein structure initiative]] |
| - | [[Category: | + | [[Category: Structural genomic]] |
| - | [[Category: | + | [[Category: Trypsin inhibitor]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 22:02:23 2008'' | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 19:02, 2 May 2008
Minimized NMR structure of ATT, an Arabidopsis trypsin/chymotrypsin inhibitor
Overview
The three-dimensional structure of the precursor form of the Arabidopsis thaliana trypsin inhibitor (ATT(p), GenBank entry Z46816), a 68-residue (approximately 7.5 kDa) rapeseed class proteinase inhibitor, has been determined in solution at pH 5.0 and 25 degrees C by multinuclear magnetic resonance spectroscopy. The protein contains one alpha-helix and two strands of antiparallel beta-sheet, with a type IV beta-turn connecting the two strands. The alpha-helix and the inhibitory loop are connected to the beta-sheet through three disulfide bridges; a fourth disulfide bridge connects the N- and C-termini. The overall structural topology of ATT(p) is similar to those of the sweet tasting protein brazzein (rmsd of 3.0 A) and the antifungal protein Rs-Afp1 [a knottin protein from radish (Raphanus sativus), rmsd of 2.7 A]. The precursor segment in ATT(p) is disordered, as visualized by the final 20-conformer ensemble and as confirmed by (15)N heteronuclear NOE analysis. The overall fold of ATT(p) is distinct from those of other classes of serine proteinase inhibitors except in the inhibitor loop; therefore, it represents a new inhibitor fold.
About this Structure
1JXC is a Single protein structure of sequence from Arabidopsis thaliana. Full crystallographic information is available from OCA.
Reference
NMR solution structure of ATTp, an Arabidopsis thaliana trypsin inhibitor., Zhao Q, Chae YK, Markley JL, Biochemistry. 2002 Oct 15;41(41):12284-96. PMID:12369816 Page seeded by OCA on Fri May 2 22:02:23 2008
Categories: Arabidopsis thaliana | Single protein | CESG, Center for Eukaryotic Structural Genomics. | Chae, Y K. | Markley, J L. | Zhao, Q. | Att | Center for eukaryotic structural genomic | Cesg | Chymotrypsin inhibitor | Hydrolase inhibitor | Protein structure initiative | Structural genomic | Trypsin inhibitor
