1imu
From Proteopedia
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| - | [[Image:1imu.gif|left|200px]] | + | [[Image:1imu.gif|left|200px]] |
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| - | '''Solution Structure of HI0257, a Ribosome Binding Protein''' | + | {{Structure |
| + | |PDB= 1imu |SIZE=350|CAPTION= <scene name='initialview01'>1imu</scene> | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
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| + | '''Solution Structure of HI0257, a Ribosome Binding Protein''' | ||
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==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1IMU is a [ | + | 1IMU is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Haemophilus_influenzae Haemophilus influenzae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IMU OCA]. |
==Reference== | ==Reference== | ||
| - | Solution structure of HI0257, a bacterial ribosome binding protein., Parsons L, Eisenstein E, Orban J, Biochemistry. 2001 Sep 18;40(37):10979-86. PMID:[http:// | + | Solution structure of HI0257, a bacterial ribosome binding protein., Parsons L, Eisenstein E, Orban J, Biochemistry. 2001 Sep 18;40(37):10979-86. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11551193 11551193] |
[[Category: Haemophilus influenzae]] | [[Category: Haemophilus influenzae]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: s2f]] | [[Category: s2f]] | ||
[[Category: solution structure]] | [[Category: solution structure]] | ||
| - | [[Category: structural | + | [[Category: structural genomic]] |
[[Category: structure 2 function project]] | [[Category: structure 2 function project]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:52:23 2008'' |
Revision as of 09:52, 20 March 2008
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Solution Structure of HI0257, a Ribosome Binding Protein
Overview
A novel bacterial ribosome binding protein, protein Y (also known as YfiA), was recently shown to reside at the 30S/50S subunit interface and to stabilize the ribosomal 70S complex against dissociation at low magnesium ion concentrations. We report here the three-dimensional NMR structure in solution of a homologue from Haemophilus influenzae, HI0257, that has 64% sequence identity to protein Y. The 107 residue protein has a beta-alpha-beta-beta-beta-alpha folding topology with two parallel alpha-helices packed against the same side of a four-stranded beta-sheet. The closest structural relatives are proteins with the double-stranded RNA-binding domain (dsRBD) motif although there is little (<10%) sequence homology. The most immediate differences between the dsRBD and HI0257 structures are that (1) HI0257 has a larger beta-sheet motif with an extra beta-strand at the N-terminus, (2) the helices are parallel in HI0257 but at an angle of about 30 degrees to each other in the dsRBD, and (3) HI0257 lacks the extended loop commonly seen between the first and second beta-strands of the dsRBD. Further, an analysis of the surface electrostatic potential in HI0257 and the dsRBD family reveals significant differences in the location of contiguous positively (and negatively) charged regions. The structural data, in combination with sequence analysis of HI0257 and its homologues, suggest that the most likely mode of RNA recognition for HI0257 may be distinct from that of the dsRBD family of proteins.
About this Structure
1IMU is a Single protein structure of sequence from Haemophilus influenzae. Full crystallographic information is available from OCA.
Reference
Solution structure of HI0257, a bacterial ribosome binding protein., Parsons L, Eisenstein E, Orban J, Biochemistry. 2001 Sep 18;40(37):10979-86. PMID:11551193
Page seeded by OCA on Thu Mar 20 11:52:23 2008
