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Structure of the SOCS4-ElonginB/C complex reveals a distinct SOCS box interface and the molecular basis for SOCS-dependent EGFR degradation.
(2007) Structure 15
PubMed: 17997974 | PubMedCentral: PMC2225448 | DOI: 10.1016/j.str.2007.09.016
The structure was solved by molecular replacement with the SOCS2-ElonginB/ElonginC complex (PDB code: 2C9W ) as a search model with the program PHASER ( Storoni et al., 2004 ).
Figure 2 Structural Comparison of the SH2 Substrate Pockets in SOCS2, SOCS3, and SOCS4 (A) Overlay of the crystal structures of the SOCS4 SH2 (orange) and the SOCS2 SH2 (blue, PDB code: 2C9W ).
Publication Year: 2007
The mechanism of ubiquitination in the cullin-RING E3 ligase machinery: conformational control of substrate orientation.
(2009) PLoS Comput Biol 5
PubMed: 19798438 | PubMedCentral: PMC2741574 | DOI: 10.1371/journal.pcbi.1000527
Methods System setup The starting structures of the unbound and bound forms of nine proteins, Skp2, Fbw7, β-TrCP1, Cdc4, Fbs1, TIR1, pVHL, SOCS2, and SOCS4 were obtained from crystal structure... (PDB codes: 2ast, 2ovq, 1p22, 1nex, 2e31, 2p1q, 1lm8, 2c9w, and 2ziv).
(A) Superposition of Elongin C (purple, violet) and VHL-box/SOCS-box of pVHL (Cyan) (PDB code 1lm8) and SOCS2 (pink) (PDB code 2c9w).
Publication Year: 2009
The SOCS-box of HIV-1 Vif interacts with ElonginBC by induced-folding to recruit its Cul5-containing ubiquitin ligase complex.
(2010) PLoS Pathog 6
PubMed: 20532212 | PubMedCentral: PMC2880568 | DOI: 10.1371/journal.ppat.1000925
(B) The structure of EloBC in complex with SOCS2 is shown (PDB ID: 2C9W), with the α-helix formed by residues 101 to 104 of EloB highlighted.
The crystal structure of EloBC bound to SOCS2 (PDB ID: 2C9W) is shown, with EloBC in surface representation; hydrophobic areas are shown in red.
The structure of EloBC bound to the Vif BC-box and the PPLP motif was modelled on the crystal structure of the EloBC-SOCS2 complex  (PDB ID:2C9W).
Publication Year: 2010
Filamins but not Janus kinases are substrates of the ASB2? cullin-ring E3 ubiquitin ligase in hematopoietic cells.
(2012) PLoS One 7
PubMed: 22916308 | PubMedCentral: PMC3423375 | DOI: 10.1371/journal.pone.0043798
Modeling of the ASB2α-EloC-EloB complex was performed by homology to the high-resolution crystallographic structure of the SOCS2-EloC-EloB complex (PDB code: 2C9W)  .
Publication Year: 2012
Molecular architecture of the ankyrin SOCS box family of Cul5-dependent E3 ubiquitin ligases.
(2013) J Mol Biol 425
PubMed: 23806657 | PubMedCentral: PMC3779351 | DOI: 10.1016/j.jmb.2013.06.015
The structure was solved by molecular replacement using PHASER  and the structures of hASB9-2 (PDB ID: 3D9H ) and Elongin B/C (PDB ID: 2C9W ) as search models.
Publication Year: 2013
Insight into the HIV-1 Vif SOCS-box-ElonginBC interaction.
(2013) Open Biol 3
PubMed: 24225024 | PubMedCentral: PMC3843819 | DOI: 10.1098/rsob.130100
Domains from SOCS2 and SOCS4 (PDB ID: 2C9W, 2IZV) contain three small α-helixes that are also known to interact with the EloB C-terminus ( figure 8 a,b ) [ 61 , 64 ], whereas SOCS6 (PDB ID: 2V... F) adopts a partially folded structure ( figure 8 c ), and the SOCS3 (PDB ID: 3DCG) downstream sequence cannot be identified in the X-ray crystallographic analysis ( figure 8 d ) [ 38 , 65 ], which suggests that the downstream structure is flexible in solution and can be only observed by NMR.
Structural analysis of viral infectivity factor of HIV type 1 and its interaction with A3G, EloC and EloB.
(2014) PLoS One 9
PubMed: 24586532 | PubMedCentral: PMC3935857 | DOI: 10.1371/journal.pone.0089116
The BC-box motif of Vif was docked against EloC obtained from PDB server (3DCG, chain D) and the C-terminal region of EloB protein (2C9W, chain B) was docked against Vif -EloC complex.
Publication Year: 2014
Biophysical studies on interactions and assembly of full-size E3 ubiquitin ligase: suppressor of cytokine signaling 2 (SOCS2)-elongin BC-cullin 5-ring box protein 2 (RBX2).
(2015) J Biol Chem 290
PubMed: 25505247 | PubMedCentral: PMC4326827 | DOI: 10.1074/jbc.M114.616664
Crystal structures of SOCS2-EloBC (PDB code 2C9W ) ( 11 ) and SOCS2-EloBC-Cul5 NTD (PDB code 4JGH ) ( 12 ) describe structural features of the protein-protein interfaces within these left-arm complexe... .
Publication Year: 2015
PubMed ID is not available.
Published in 2015
( C ) SOCS-box domain of receptor SOCS2 in complex with ElonginC (PDB code 2C9W).
We identified the presence of arsenic atoms in the 2C9W crystal structure as a result of covalent modification of surface cysteine residues with cacodylate buffer.
The structure was solved to 2.6 Å resolution by MR using 2C9W as the search model and refined to an R work of 23.6% and R free of 30.4%.
In the deposited model for 2C9W there are three Ni(II) ions modelled around the single complex in the ASU.
Careful analysis of structure and electron density using the deposited structure factors for 2C9W suggested that the two Ni(II) ions modelled as being bound to cysteine residues (SOCS2 C111 and EloB C89 ) inadequately satisfy the electron density in these parts of the structure ( Fig 2A ).
The experimental map and partial structure were used to align regions of the template structure 2C9W to place the six copies of the complex in the ASU.
Despite successfully producing crystals of the complex that were isomorphous to those reported previously (PDB: 2C9W) [ 17 ], we found that when soaked with dimethyl sulfoxide (DMSO) alone and DMSO solutions of the compounds these crystals undergo a change in spacegroup and unit cell dimensions.
(A) The 2 F o − F c ( blue mesh ) and F o − F c ( green mesh ) maps around modelled SOCS2 C111 ( CPK colored sticks ) and adjacent Ni(II) ( green sphere ) from the PDB structure 2C9W.
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