2ghq: Difference between revisions
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|PDB= 2ghq |SIZE=350|CAPTION= <scene name='initialview01'>2ghq</scene>, resolution 2.05Å | |PDB= 2ghq |SIZE=350|CAPTION= <scene name='initialview01'>2ghq</scene>, resolution 2.05Å | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand=MG:MAGNESIUM ION'>MG</scene> | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</scene> | ||
|ACTIVITY= [http://en.wikipedia.org/wiki/Phosphoprotein_phosphatase Phosphoprotein phosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.16 3.1.3.16] | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Phosphoprotein_phosphatase Phosphoprotein phosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.16 3.1.3.16] </span> | ||
|GENE= CTDSP1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |GENE= CTDSP1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
|DOMAIN= | |||
|RELATEDENTRY=[[1ta0|1TA0]] | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ghq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ghq OCA], [http://www.ebi.ac.uk/pdbsum/2ghq PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2ghq RCSB]</span> | |||
}} | }} | ||
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[[Category: Noel, J P.]] | [[Category: Noel, J P.]] | ||
[[Category: Zhang, Y.]] | [[Category: Zhang, Y.]] | ||
[[Category: had superfamily]] | [[Category: had superfamily]] | ||
[[Category: protein-peptide complex]] | [[Category: protein-peptide complex]] | ||
''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 03:16:47 2008'' | ||
Revision as of 03:16, 31 March 2008
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| , resolution 2.05Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , | ||||||
| Gene: | CTDSP1 (Homo sapiens) | ||||||
| Activity: | Phosphoprotein phosphatase, with EC number 3.1.3.16 | ||||||
| Related: | 1TA0
| ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CTD-specific phosphatase Scp1 in complex with peptide C-terminal domain of RNA polymerase II
OverviewOverview
Phosphorylation and dephosphorylation of the C-terminal domain (CTD) of RNA polymerase II (Pol II) represent a critical regulatory checkpoint for transcription. Transcription initiation requires Fcp1/Scp1-mediated dephosphorylation of phospho-CTD. Fcp1 and Scp1 belong to a family of Mg2+ -dependent phosphoserine (P.Ser)/phosphothreonine (P.Thr)-specific phosphatases. We recently showed that Scp1 is an evolutionarily conserved regulator of neuronal gene silencing. Here, we present the X-ray crystal structures of a dominant-negative form of human Scp1 (D96N mutant) bound to mono- and diphosphorylated peptides encompassing the CTD heptad repeat (Y1S2P3T4S5P6S7). Moreover, kinetic and thermodynamic analyses of Scp1-phospho-CTD peptide complexes support the structures determined. This combined structure-function analysis discloses the residues in Scp1 involved in CTD binding and its preferential dephosphorylation of P.Ser5 of the CTD heptad repeat. Moreover, these results provide a template for the design of specific inhibitors of Scp1 for the study of neuronal stem cell development.
About this StructureAbout this Structure
2GHQ is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
ReferenceReference
Determinants for dephosphorylation of the RNA polymerase II C-terminal domain by Scp1., Zhang Y, Kim Y, Genoud N, Gao J, Kelly JW, Pfaff SL, Gill GN, Dixon JE, Noel JP, Mol Cell. 2006 Dec 8;24(5):759-70. PMID:17157258
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