1pin: Difference between revisions
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[[Image:1pin.gif|left|200px]] | [[Image:1pin.gif|left|200px]] | ||
'''PIN1 PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FROM HOMO SAPIENS''' | {{Structure | ||
|PDB= 1pin |SIZE=350|CAPTION= <scene name='initialview01'>1pin</scene>, resolution 1.35Å | |||
|SITE= <scene name='pdbsite=ACT:The+Active+Site+Of+Ppiase+Domain+Is+Marked+By+The+Bound+...'>ACT</scene> | |||
|LIGAND= <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene> and <scene name='pdbligand=1PG:2-(2-{2-[2-(2-METHOXY-ETHOXY)-ETHOXY]-ETHOXY}-ETHOXY)-ETHANOL'>1PG</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Peptidylprolyl_isomerase Peptidylprolyl isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.2.1.8 5.2.1.8] | |||
|GENE= PIN1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |||
}} | |||
'''PIN1 PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FROM HOMO SAPIENS''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1PIN is a [ | 1PIN is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PIN OCA]. | ||
==Reference== | ==Reference== | ||
Structural and functional analysis of the mitotic rotamase Pin1 suggests substrate recognition is phosphorylation dependent., Ranganathan R, Lu KP, Hunter T, Noel JP, Cell. 1997 Jun 13;89(6):875-86. PMID:[http:// | Structural and functional analysis of the mitotic rotamase Pin1 suggests substrate recognition is phosphorylation dependent., Ranganathan R, Lu KP, Hunter T, Noel JP, Cell. 1997 Jun 13;89(6):875-86. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9200606 9200606] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Peptidylprolyl isomerase]] | [[Category: Peptidylprolyl isomerase]] | ||
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[[Category: rotamase]] | [[Category: rotamase]] | ||
''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 13:24:49 2008'' | ||
Revision as of 14:24, 20 March 2008
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| , resolution 1.35Å | |||||||
|---|---|---|---|---|---|---|---|
| Sites: | |||||||
| Ligands: | and | ||||||
| Gene: | PIN1 (Homo sapiens) | ||||||
| Activity: | Peptidylprolyl isomerase, with EC number 5.2.1.8 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
PIN1 PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FROM HOMO SAPIENS
OverviewOverview
The human rotamase or peptidyl-prolyl cis-trans isomerase Pin1 is a conserved mitotic regulator essential for the G2/M transition of the eukaryotic cell cycle. We report the 1.35 A crystal structure of Pin1 complexed with an AlaPro dipeptide and the initial characterization of Pin1's functional properties. The crystallographic structure as well as pH titration studies and mutagenesis of an active site cysteine suggest a catalytic mechanism that includes general acid-base and covalent catalysis during peptide bond isomerization. Pin1 displays a preference for an acidic residue N-terminal to the isomerized proline bond due to interaction of this acidic side chain with a basic cluster. This raises the possibility of phosphorylation-mediated control of Pin1-substrate interactions in cell cycle regulation.
About this StructureAbout this Structure
1PIN is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
ReferenceReference
Structural and functional analysis of the mitotic rotamase Pin1 suggests substrate recognition is phosphorylation dependent., Ranganathan R, Lu KP, Hunter T, Noel JP, Cell. 1997 Jun 13;89(6):875-86. PMID:9200606
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