2nmb
From Proteopedia
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|PDB= 2nmb |SIZE=350|CAPTION= <scene name='initialview01'>2nmb</scene> | |PDB= 2nmb |SIZE=350|CAPTION= <scene name='initialview01'>2nmb</scene> | ||
|SITE= | |SITE= | ||
| - | |LIGAND= | + | |LIGAND= <scene name='pdbligand=PTR:O-PHOSPHOTYROSINE'>PTR</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= NUMB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 Drosophila melanogaster]) | |GENE= NUMB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 Drosophila melanogaster]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2nmb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2nmb OCA], [http://www.ebi.ac.uk/pdbsum/2nmb PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2nmb RCSB]</span> | ||
}} | }} | ||
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[[Category: signal transduction]] | [[Category: signal transduction]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 04:05:10 2008'' |
Revision as of 01:05, 31 March 2008
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| Ligands: | |||||||
| Gene: | NUMB (Drosophila melanogaster) | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
DNUMB PTB DOMAIN COMPLEXED WITH A PHOSPHOTYROSINE PEPTIDE, NMR, ENSEMBLE OF STRUCTURES.
Overview
The phosphotyrosine-binding (PTB) domain of Numb, a protein involved in asymmetric cell division, has recently been shown to bind to the adapter protein Lnx through an LDNPAY sequence, to the Numb-associated kinase (Nak) through a sequence that does not contain an NPXY motif and to GP(p)Y-containing peptides obtained from library screening. We show here that these diverse peptide sequences bind with comparable affinities to the Numb PTB domain at a common binding site on the surface of the protein. The NMR structure of the Numb PTB domain in complex with a GPpY-containing peptide reveals a novel mechanism of binding with the peptide in a helical turn that does not hydrogen bond to the PTB domain beta-sheet. These results suggest that PTB domains can potentially have multiple modes of peptide recognition and provide a structural basis from which the multiple functions of the Numb PTB domain during asymmetric cell division could arise.
About this Structure
2NMB is a Single protein structure of sequence from Drosophila melanogaster. Full crystallographic information is available from OCA.
Reference
Structure of a Numb PTB domain-peptide complex suggests a basis for diverse binding specificity., Li SC, Zwahlen C, Vincent SJ, McGlade CJ, Kay LE, Pawson T, Forman-Kay JD, Nat Struct Biol. 1998 Dec;5(12):1075-83. PMID:9846878
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