2uzi: Difference between revisions
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[[Image:2uzi.gif|left|200px]]<br /><applet load="2uzi" size=" | [[Image:2uzi.gif|left|200px]]<br /><applet load="2uzi" size="350" color="white" frame="true" align="right" spinBox="true" | ||
caption="2uzi, resolution 2.00Å" /> | caption="2uzi, resolution 2.00Å" /> | ||
'''CRYSTAL STRUCTURE OF HRAS(G12V)- ANTI-RAS FV COMPLEX'''<br /> | '''CRYSTAL STRUCTURE OF HRAS(G12V)- ANTI-RAS FV COMPLEX'''<br /> | ||
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==Overview== | ==Overview== | ||
Many disease-related processes occur via protein complexes that are, considered undruggable with small molecules. An example is RAS, which is, frequently mutated in cancer and contributes to initiation and maintenance, of the disease by constitutive signal transduction through protein, interaction with effector proteins, like PI3K, RAF and RALGDS. Such, protein interactions are therefore significant targets for therapy. We, describe a single immunoglobulin variable region domain that specifically, binds to activated GTP-bound RAS and prevents RAS-dependent tumorigenesis, in a mouse model. The crystal structure of the immunoglobulin-RAS complex, shows that the variable region competitively binds to the conformationally, variant regions of RAS, where its signalling effector molecules interact., This allows the plasma membrane targeted single domain intrabody to, inhibit signalling by mutant RAS. This mode of action is a novel advance, to directly interfere with oncogenic RAS function in human cancer and, shows a universally applicable approach to develop macromolecules to, combat cancer. In addition, this method illustrates a general means for, interfering with protein interactions that are commonly considered, intractable as conventional drug targets. | Many disease-related processes occur via protein complexes that are, considered undruggable with small molecules. An example is RAS, which is, frequently mutated in cancer and contributes to initiation and maintenance, of the disease by constitutive signal transduction through protein, interaction with effector proteins, like PI3K, RAF and RALGDS. Such, protein interactions are therefore significant targets for therapy. We, describe a single immunoglobulin variable region domain that specifically, binds to activated GTP-bound RAS and prevents RAS-dependent tumorigenesis, in a mouse model. The crystal structure of the immunoglobulin-RAS complex, shows that the variable region competitively binds to the conformationally, variant regions of RAS, where its signalling effector molecules interact., This allows the plasma membrane targeted single domain intrabody to, inhibit signalling by mutant RAS. This mode of action is a novel advance, to directly interfere with oncogenic RAS function in human cancer and, shows a universally applicable approach to develop macromolecules to, combat cancer. In addition, this method illustrates a general means for, interfering with protein interactions that are commonly considered, intractable as conventional drug targets. | ||
==About this Structure== | ==About this Structure== | ||
2UZI is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with ZN, MG and GTP as [http://en.wikipedia.org/wiki/ligands ligands]. Known structural/functional Site: <scene name='pdbsite=AC1:Zn Binding Site For Chain R'>AC1</scene>. Full crystallographic information is available from [http:// | 2UZI is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with <scene name='pdbligand=ZN:'>ZN</scene>, <scene name='pdbligand=MG:'>MG</scene> and <scene name='pdbligand=GTP:'>GTP</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Known structural/functional Site: <scene name='pdbsite=AC1:Zn Binding Site For Chain R'>AC1</scene>. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2UZI OCA]. | ||
==Reference== | ==Reference== | ||
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[[Category: signaling protein/immune system]] | [[Category: signaling protein/immune system]] | ||
''Page seeded by [http:// | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jan 23 14:46:15 2008'' | ||
Revision as of 15:46, 23 January 2008
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CRYSTAL STRUCTURE OF HRAS(G12V)- ANTI-RAS FV COMPLEX
OverviewOverview
Many disease-related processes occur via protein complexes that are, considered undruggable with small molecules. An example is RAS, which is, frequently mutated in cancer and contributes to initiation and maintenance, of the disease by constitutive signal transduction through protein, interaction with effector proteins, like PI3K, RAF and RALGDS. Such, protein interactions are therefore significant targets for therapy. We, describe a single immunoglobulin variable region domain that specifically, binds to activated GTP-bound RAS and prevents RAS-dependent tumorigenesis, in a mouse model. The crystal structure of the immunoglobulin-RAS complex, shows that the variable region competitively binds to the conformationally, variant regions of RAS, where its signalling effector molecules interact., This allows the plasma membrane targeted single domain intrabody to, inhibit signalling by mutant RAS. This mode of action is a novel advance, to directly interfere with oncogenic RAS function in human cancer and, shows a universally applicable approach to develop macromolecules to, combat cancer. In addition, this method illustrates a general means for, interfering with protein interactions that are commonly considered, intractable as conventional drug targets.
About this StructureAbout this Structure
2UZI is a Protein complex structure of sequences from Homo sapiens with , and as ligands. Known structural/functional Site: . Full crystallographic information is available from OCA.
ReferenceReference
Tumour prevention by a single antibody domain targeting the interaction of signal transduction proteins with RAS., Tanaka T, Williams RL, Rabbitts TH, EMBO J. 2007 Jul 11;26(13):3250-9. Epub 2007 Jun 14. PMID:17568777
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Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)
OCA- Pages with broken file links
- Homo sapiens
- Protein complex
- Rabbitts, T.H.
- Tanaka, T.
- Williams, R.L.
- GTP
- MG
- ZN
- Antibody
- Cancer therapy
- Disease mutation
- Golgi apparatus
- Gtp-binding
- Immunoglobulin domain
- Intrabody
- Lipoprotein
- Membrane
- Methylation
- Nucleotide-binding
- Oncogene
- Palmitate
- Prenylation
- Proto-oncogene
- Signal transduction
- Signaling protein/immune system