1i81
From Proteopedia
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| - | [[Image:1i81.gif|left|200px]] | + | [[Image:1i81.gif|left|200px]] |
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| - | '''CRYSTAL STRUCTURE OF A HEPTAMERIC LSM PROTEIN FROM METHANOBACTERIUM THERMOAUTOTROPHICUM''' | + | {{Structure |
| + | |PDB= 1i81 |SIZE=350|CAPTION= <scene name='initialview01'>1i81</scene>, resolution 2.0Å | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= | ||
| + | |GENE= MT0649 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=145262 Methanothermobacter thermautotrophicus]) | ||
| + | }} | ||
| + | |||
| + | '''CRYSTAL STRUCTURE OF A HEPTAMERIC LSM PROTEIN FROM METHANOBACTERIUM THERMOAUTOTROPHICUM''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1I81 is a [ | + | 1I81 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Methanothermobacter_thermautotrophicus Methanothermobacter thermautotrophicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1I81 OCA]. |
==Reference== | ==Reference== | ||
| - | Crystal structure of a heptameric Sm-like protein complex from archaea: implications for the structure and evolution of snRNPs., Collins BM, Harrop SJ, Kornfeld GD, Dawes IW, Curmi PM, Mabbutt BC, J Mol Biol. 2001 Jun 15;309(4):915-23. PMID:[http:// | + | Crystal structure of a heptameric Sm-like protein complex from archaea: implications for the structure and evolution of snRNPs., Collins BM, Harrop SJ, Kornfeld GD, Dawes IW, Curmi PM, Mabbutt BC, J Mol Biol. 2001 Jun 15;309(4):915-23. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11399068 11399068] |
[[Category: Methanothermobacter thermautotrophicus]] | [[Category: Methanothermobacter thermautotrophicus]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: curved anti-parallel beta sheet]] | [[Category: curved anti-parallel beta sheet]] | ||
| - | ''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 11:46:45 2008'' |
Revision as of 09:46, 20 March 2008
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| , resolution 2.0Å | |||||||
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| Gene: | MT0649 (Methanothermobacter thermautotrophicus) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF A HEPTAMERIC LSM PROTEIN FROM METHANOBACTERIUM THERMOAUTOTROPHICUM
Overview
The Sm/Lsm proteins associate with small nuclear RNA to form the core of small nuclear ribonucleoproteins, required for processes as diverse as pre-mRNA splicing, mRNA degradation and telomere formation. The Lsm proteins from archaea are likely to represent the ancestral Sm/Lsm domain. Here, we present the crystal structure of the Lsm alpha protein from the thermophilic archaeon Methanobacterium thermoautotrophicum at 2.0 A resolution. The Lsm alpha protein crystallizes as a heptameric ring comprised of seven identical subunits interacting via beta-strand pairing and hydrophobic interactions. The heptamer can be viewed as a propeller-like structure in which each blade consists of a seven-stranded antiparallel beta-sheet formed from neighbouring subunits. There are seven slots on the inner surface of the heptamer ring, each of which is lined by Asp, Asn and Arg residues that are highly conserved in the Sm/Lsm sequences. These conserved slots are likely to form the RNA-binding site. In archaea, the gene encoding Lsm alpha is located next to the L37e ribosomal protein gene in a putative operon, suggesting a role for the Lsm alpha complex in ribosome function or biogenesis.
About this Structure
1I81 is a Single protein structure of sequence from Methanothermobacter thermautotrophicus. Full crystallographic information is available from OCA.
Reference
Crystal structure of a heptameric Sm-like protein complex from archaea: implications for the structure and evolution of snRNPs., Collins BM, Harrop SJ, Kornfeld GD, Dawes IW, Curmi PM, Mabbutt BC, J Mol Biol. 2001 Jun 15;309(4):915-23. PMID:11399068
Page seeded by OCA on Thu Mar 20 11:46:45 2008
