1b33: Difference between revisions
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[[Image:1b33.gif|left|200px]] | [[Image:1b33.gif|left|200px]] | ||
'''STRUCTURE OF LIGHT HARVESTING COMPLEX OF ALLOPHYCOCYANIN ALPHA AND BETA CHAINS/CORE-LINKER COMPLEX AP*LC7.8''' | {{Structure | ||
|PDB= 1b33 |SIZE=350|CAPTION= <scene name='initialview01'>1b33</scene>, resolution 2.3Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=BLA:BILIVERDINE+IX+ALPHA'>BLA</scene>, <scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</scene> and <scene name='pdbligand=BO4:BORATE ION'>BO4</scene> | |||
|ACTIVITY= | |||
|GENE= | |||
}} | |||
'''STRUCTURE OF LIGHT HARVESTING COMPLEX OF ALLOPHYCOCYANIN ALPHA AND BETA CHAINS/CORE-LINKER COMPLEX AP*LC7.8''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1B33 is a [ | 1B33 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Mastigocladus_laminosus Mastigocladus laminosus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1B33 OCA]. | ||
==Reference== | ==Reference== | ||
Structural analysis at 2.2 A of orthorhombic crystals presents the asymmetry of the allophycocyanin-linker complex, AP.LC7.8, from phycobilisomes of Mastigocladus laminosus., Reuter W, Wiegand G, Huber R, Than ME, Proc Natl Acad Sci U S A. 1999 Feb 16;96(4):1363-8. PMID:[http:// | Structural analysis at 2.2 A of orthorhombic crystals presents the asymmetry of the allophycocyanin-linker complex, AP.LC7.8, from phycobilisomes of Mastigocladus laminosus., Reuter W, Wiegand G, Huber R, Than ME, Proc Natl Acad Sci U S A. 1999 Feb 16;96(4):1363-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9990029 9990029] | ||
[[Category: Mastigocladus laminosus]] | [[Category: Mastigocladus laminosus]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
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[[Category: cyanobacteria]] | [[Category: cyanobacteria]] | ||
[[Category: light-harvesting protein]] | [[Category: light-harvesting protein]] | ||
[[Category: linker | [[Category: linker polypeptide]] | ||
''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 10:05:35 2008'' | ||
Revision as of 11:05, 20 March 2008
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| , resolution 2.3Å | |||||||
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| Ligands: | , and | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE OF LIGHT HARVESTING COMPLEX OF ALLOPHYCOCYANIN ALPHA AND BETA CHAINS/CORE-LINKER COMPLEX AP*LC7.8
OverviewOverview
An electrophoretically purified allophycocyanin-linker complex, AP. LC7.8, from phycobilisomes of Mastigocladus laminosus has been crystallized in the orthorhombic space group P212121. Cryocrystallographic x-ray measurements enabled the structural analysis of the complex at a resolution of 2.2 A. The asymmetric unit contains two side-to-side associated "trimeric" (alphabeta)3 allophycocyanin complexes comprising the linker polypeptide in a defined orientation inside the trimer. The linker representing a protein fold related to the prosegment of procarboxypeptidase A is in contact with only two of the three beta-subunits and directly interacts with the corresponding chromophores of these proteins. In addition to a modulation of the chromophores' spectral properties, the linker polypeptide attracts the alphabeta-subcomplexes, thereby bringing the beta-chromophores closer together. These results will enable interpretations of energy-transfer mechanisms within phycobiliproteins.
About this StructureAbout this Structure
1B33 is a Protein complex structure of sequences from Mastigocladus laminosus. Full crystallographic information is available from OCA.
ReferenceReference
Structural analysis at 2.2 A of orthorhombic crystals presents the asymmetry of the allophycocyanin-linker complex, AP.LC7.8, from phycobilisomes of Mastigocladus laminosus., Reuter W, Wiegand G, Huber R, Than ME, Proc Natl Acad Sci U S A. 1999 Feb 16;96(4):1363-8. PMID:9990029
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