1hj8: Difference between revisions
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'''1.00 AA TRYPSIN FROM ATLANTIC SALMON''' | {{Structure | ||
|PDB= 1hj8 |SIZE=350|CAPTION= <scene name='initialview01'>1hj8</scene>, resolution 1.00Å | |||
|SITE= <scene name='pdbsite=CA1:Bam+Binding+Site+For+Residue+A248'>CA1</scene> | |||
|LIGAND= <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene> and <scene name='pdbligand=BAM:BENZAMIDINE'>BAM</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Trypsin Trypsin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.4 3.4.21.4] | |||
|GENE= | |||
}} | |||
'''1.00 AA TRYPSIN FROM ATLANTIC SALMON''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1HJ8 is a [ | 1HJ8 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Salmo_salar Salmo salar]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HJ8 OCA]. | ||
==Reference== | ==Reference== | ||
Atomic resolution structures of trypsin provide insight into structural radiation damage., Leiros HK, McSweeney SM, Smalas AO, Acta Crystallogr D Biol Crystallogr. 2001 Apr;57(Pt 4):488-97. PMID:[http:// | Atomic resolution structures of trypsin provide insight into structural radiation damage., Leiros HK, McSweeney SM, Smalas AO, Acta Crystallogr D Biol Crystallogr. 2001 Apr;57(Pt 4):488-97. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11264577 11264577] | ||
[[Category: Salmo salar]] | [[Category: Salmo salar]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: trypsin]] | [[Category: trypsin]] | ||
''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 11:37:48 2008'' | ||
Revision as of 12:37, 20 March 2008
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| , resolution 1.00Å | |||||||
|---|---|---|---|---|---|---|---|
| Sites: | |||||||
| Ligands: | , and | ||||||
| Activity: | Trypsin, with EC number 3.4.21.4 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
1.00 AA TRYPSIN FROM ATLANTIC SALMON
OverviewOverview
Radiation damage is an inherent problem in protein X-ray crystallography and the process has recently been shown to be highly specific, exhibiting features such as cleavage of disulfide bonds, decarboxylation of acidic residues, increase in atomic B factors and increase in unit-cell volume. Reported here are two trypsin structures at atomic resolution (1.00 and 0.95 A), the data for which were collected at a third-generation synchrotron (ESRF) at two different beamlines. Both trypsin structures exhibit broken disulfide bonds; in particular, the bond from Cys191 to Cys220 is very sensitive to synchrotron radiation. The data set collected at the most intense beamline (ID14-EH4) shows increased structural radiation damage in terms of lower occupancies for cysteine residues, more breakage in the six disulfide bonds and more alternate conformations. It appears that high intensity and not only the total X-ray dose is most harmful to protein crystals.
About this StructureAbout this Structure
1HJ8 is a Single protein structure of sequence from Salmo salar. Full crystallographic information is available from OCA.
ReferenceReference
Atomic resolution structures of trypsin provide insight into structural radiation damage., Leiros HK, McSweeney SM, Smalas AO, Acta Crystallogr D Biol Crystallogr. 2001 Apr;57(Pt 4):488-97. PMID:11264577
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