1bhf: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
[[Image:1bhf.gif|left|200px]] | [[Image:1bhf.gif|left|200px]] | ||
'''P56LCK SH2 DOMAIN INHIBITOR COMPLEX''' | {{Structure | ||
|PDB= 1bhf |SIZE=350|CAPTION= <scene name='initialview01'>1bhf</scene>, resolution 1.8Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=ACE:ACETYL GROUP'>ACE</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Transferase Transferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.10.1 and 2.7.10.2 2.7.10.1 and 2.7.10.2] | |||
|GENE= | |||
}} | |||
'''P56LCK SH2 DOMAIN INHIBITOR COMPLEX''' | |||
==Overview== | ==Overview== | ||
| Line 10: | Line 19: | ||
==About this Structure== | ==About this Structure== | ||
1BHF is a [ | 1BHF 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=1BHF OCA]. | ||
==Reference== | ==Reference== | ||
Carboxymethyl-phenylalanine as a replacement for phosphotyrosine in SH2 domain binding., Tong L, Warren TC, Lukas S, Schembri-King J, Betageri R, Proudfoot JR, Jakes S, J Biol Chem. 1998 Aug 7;273(32):20238-42. PMID:[http:// | Carboxymethyl-phenylalanine as a replacement for phosphotyrosine in SH2 domain binding., Tong L, Warren TC, Lukas S, Schembri-King J, Betageri R, Proudfoot JR, Jakes S, J Biol Chem. 1998 Aug 7;273(32):20238-42. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9685372 9685372] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
| Line 29: | Line 38: | ||
[[Category: transferase]] | [[Category: transferase]] | ||
''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 10:11:02 2008'' | ||
Revision as of 11:11, 20 March 2008
| |||||||
| , resolution 1.8Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Activity: | Transferase, with EC number and 2.7.10.2 2.7.10.1 and 2.7.10.2 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
P56LCK SH2 DOMAIN INHIBITOR COMPLEX
OverviewOverview
The crystal structure of human p56(lck) SH2 domain in complex with an inhibitor containing the singly charged p-(carboxymethyl)phenylalanine residue (cmF) as a phosphotyrosine (Tyr(P) or pY) replacement has been determined at 1.8 A resolution. The binding mode of the acetyl-cmF-Glu-Glu-Ile (cmFEEI) inhibitor is very similar to that of the pYEEI inhibitor, confirming that the cmFEEI inhibitor has a similar mechanism of SH2 domain inhibition despite its significantly reduced potency. Observed conformational differences in the side chain of the cmF residue can be interpreted in terms of maintaining similar interactions with the SH2 domain as the Tyr(P) residue. The crystal structure of the free p56(lck) SH2 domain has been determined at 1.9 A resolution and shows an open conformation for the BC loop and an open phosphotyrosine binding pocket, in contrast to earlier studies on the src SH2 domain that showed mostly closed conformation. The structural information presented here suggests that the carboxymethyl-phenylalanine residue may be a viable Tyr(P) replacement and represents an attractive starting point for the design and development of SH2 domain inhibitors with better pharmaceutical profiles.
DiseaseDisease
Known disease associated with this structure: SCID due to LCK deficiency OMIM:[153390]
About this StructureAbout this Structure
1BHF is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
ReferenceReference
Carboxymethyl-phenylalanine as a replacement for phosphotyrosine in SH2 domain binding., Tong L, Warren TC, Lukas S, Schembri-King J, Betageri R, Proudfoot JR, Jakes S, J Biol Chem. 1998 Aug 7;273(32):20238-42. PMID:9685372
Page seeded by OCA on Thu Mar 20 10:11:02 2008