2C9W: Socs-2

Crystal structure of socs-2 in complex with elongin-B and elongin-C at 1.9A resolution. Determined by X-ray diffraction at 1.9 Å resolution. Released 22 Feb 2006.

Method
X-ray diffraction
Resolution
1.9 Å
Organism
HOMO SAPIENS
Chains
3
Atoms
2,811
Mol. weight
43.86 kDa
Ligands
NI
Released
22 Feb 2006

Explore 2C9W in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

2C9W contains 22 α-helices and 23 β-strands across 3 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 9 helices, 7 β-strands

ElementResiduesLengthSheet
α-helix33-4513
β-strand4911
α-helix55-628
α-helix661
β-strand70-7451
β-strand82-8871
β-strand91-100101
β-strand103-10641
α-helix113-1153
β-strand11911
α-helix122-13211
β-strand15511
α-helix160-1623
α-helix163-17412
α-helix178-1803
α-helix185-1928
Chain B: 8 helices, 13 β-strands
ElementResiduesLengthSheet
β-strand3-972
β-strand1013
β-strand12-1872
β-strand2314
α-helix24-3512
α-helix39-413
β-strand42-4652
β-strand49-5022
α-helix51-522
β-strand5614
α-helix57-604
β-strand6815
β-strand7115
α-helix721
β-strand73-7972
β-strand80-8126
β-strand84-8526
α-helix86-883
β-strand9013
α-helix91-10010
α-helix101-1033
Chain C: 5 helices, 3 β-strands
ElementResiduesLengthSheet
β-strand18-2252
β-strand28-3252
α-helix33-364
α-helix40-445
β-strand59-6132
α-helix67-8216
α-helix90-923
α-helix97-11014

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Suppressor of cytokine signaling 2Aprotein169HOMO SAPIENSO14508 (AlphaFold model)
Transcription elongation factor B polypeptide 2Bprotein118HOMO SAPIENSQ15370 (AlphaFold model)
Transcription elongation factor B polypeptide 1Cprotein97HOMO SAPIENSQ15369 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>2C9W_1 SUPPRESSOR OF CYTOKINE SIGNALING 2 (chains A)
SMQAARLAKALRELGQTGWYWGSMTVNEAKEKLKEAPEGTFLIRDSSHSDYLLTISVKTS
AGPTNLRIEYQDGKFRLDSIICVKSKLKQFDSVVHLIDYYVQMCKDKRTGPEAPRNGTVH
LYLTKPLYTSAPSLQHLCRLTINKCTGAIWGLPLPTRLKDYLEEYKFQV
Sequence of entity 2 (B), FASTA
>2C9W_2 TRANSCRIPTION ELONGATION FACTOR B POLYPEPTIDE 2 (chains B)
MDVFLMIRRHKTTIFTDAKESSTVFELKRIVEGILKRPPDEQRLYKDDQLLDDGKTLGEC
GFTSQTARPQAPATVGLAFRADDTFEALCIEPFSSPPELPDVMKPQDSGSSANEQAVQ
Sequence of entity 3 (C), FASTA
>2C9W_3 TRANSCRIPTION ELONGATION FACTOR B POLYPEPTIDE 1 (chains C)
MMYVKLISSDGHEFIVKREHALTSGTIKAMLSGPGQFAENETNEVNFREIPSHVLSKVCM
YFTYKVRYTNSSTEIPEFPIAPEIALELLMAANFLDC

Ligands and cofactors

IDNameFormulaCopies
NINickel (II) ionNi3

Water and common crystallization additives (SO4) are not listed.

Primary citation

Crystal structure of the SOCS2-elongin C-elongin B complex defines a prototypical SOCS box ubiquitin ligase. Bullock, A.N., Debreczeni, J.E., Edwards, A.M. et al. Proc Natl Acad Sci U S A (2006) 103:7637-7642. DOI 10.1073/pnas.0601638103 · PubMed

Other PDB entries of the same protein (UniProt O14508 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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