2X1N Cell Cycle date Dec 31, 2009
title Truncation And Optimisation Of Peptide Inhibitors Of Cdk2, Cyclin A Through Structure Guided Design
authors G.Kontopidis, M.J.Andrews, C.Mcinnes, A.Plater, L.Innes, S.Renachowski, A.Cowan, P.M.Fischer, N.A.Mcintyre, G.Griffiths, A.L.Barnett, A.M.Z.Slawin, W.Jackson, M.Thomas, D.I.Zheleva, S.Wang, D.G.Blake, N.J.Westwood
compound source
Molecule: Cell Division Protein Kinase 2
Chain: A, C
Synonym: Cyclin-Dependent Kinase 2, P33 Protein Kinase
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Spodoptera Frugiperda
Expression_system_taxid: 7108
Expression_system_vector_type: Baculovirus

Molecule: Cyclin-A2
Chain: B, D
Fragment: Residues 172-432
Synonym: Cyclin-A
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Ace-Leu-Asn-Pff-Nh2
Chain: H
Engineered: Yes

Synthetic: Yes
symmetry Space Group: P 21 21 21
R_factor 0.19964 R_Free 0.25478
length a length b length c angle alpha angle beta angle gamma
74.558 114.257 157.277 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.75 Å
ligand ACE, NH2, PFF, X1N BindingDB enzyme Transferase E.C. BRENDA
note 2X1N supersedes 2WHA
A, C

Primary referenceDesign, synthesis, and evaluation of 2-methyl- and 2-amino-N-aryl-4,5-dihydrothiazolo[4,5-h]quinazolin-8-amines as ring-constrained 2-anilino-4-(thiazol-5-yl)pyrimidine cyclin-dependent kinase inhibitors., McIntyre NA, McInnes C, Griffiths G, Barnett AL, Kontopidis G, Slawin AM, Jackson W, Thomas M, Zheleva DI, Wang S, Blake DG, Westwood NJ, Fischer PM, J Med Chem. 2010 Mar 11;53(5):2136-45. PMID:20146435
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (196 Kb) [Save to disk]
  • Biological Unit Coordinates (2x1n.pdb1.gz) 95 Kb
  • Biological Unit Coordinates (2x1n.pdb2.gz) 94 Kb
  • LPC: Ligand-Protein Contacts for 2X1N
  • CSU: Contacts of Structural Units for 2X1N
  • Structure Factors (481 Kb)
  • Retrieve 2X1N in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2X1N from S2C, [Save to disk]
  • Re-refined 2x1n structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2X1N in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 2X1N
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 2X1N, from MSDmotif at EBI
  • Fold representative 2x1n from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2x1n_C] [2x1n] [2x1n_A] [2x1n_H] [2x1n_B] [2x1n_D]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Domains found in 2X1N: [CYCLIN] [S_TKc ] by SMART
  • Alignments of the sequence of 2X1N with the sequences similar proteins can be viewed for 2X1N's classification at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list.
  • A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification at ProtoMap. Click on the Cluster number.
  • Other resources with information on 2X1N
  • Community annotation for 2X1N at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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