2A25	Ligase	date	Jun 21, 2005
title	Crystal Structure Of Siah1 Sbd Bound To The Peptide Ekpaavva Sip
authors	E.Santelli, M.Leone, C.Li, T.Fukushima, N.E.Preece, A.J.Olson, K.R J.C.Reed, M.Pellecchia, R.C.Liddington, S.Matsuzawa
compound		source
Molecule: Ubiquitin Ligase Siah1 Chain: A Fragment: Substrate Binding Domain (Residues 90-282) Synonym: Seven In Absentia Homolog 1, Siah-1, Siah-1a Ec: 6.3.2.- Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Siah1, Humsiah Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet15b
Molecule: Calcyclin-Binding Protein Peptide Chain: B Synonym: Cacybp, Hcacybp, Siah-Interacting Protein, S100a6- Protein, Pnas-107; Engineered: Yes Other_details: Siah Binding Motif		Synthetic: Yes Other_details: The Peptide Was Chemically Synthesized. The Of The Peptide Can Be Naturally Found In Homo Sapiens (Huma
symmetry	Space Group: C 2 2 21	R_factor 0.213 R_Free 0.252
crystal cell	length a length b length c angle alpha angle beta angle gamma 47.635 107.761 78.414 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand	ZN	enzyme	Ligase E.C.6.3.2 BRENDA
note	2A25 is a representative structure
Gene Ontology	Chain Function Process Component A
Primary reference	Structural analysis of Siah1-Siah-interacting protein interactions and insights into the assembly of an E3 ligase multiprotein complex., Santelli E, Leone M, Li C, Fukushima T, Preece NE, Olson AJ, Ely KR, Reed JC, Pellecchia M, Liddington RC, Matsuzawa S, J Biol Chem 2005 Oct 7;280(40):34278-87. Epub 2005 Aug 4. PMID:16085652

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (33 Kb) [Save to disk] Biological Unit Coordinates (2a25.pdb1.gz) 52 Kb LPC: Ligand-Protein Contacts for 2A25 CSU: Contacts of Structural Units for 2A25 Likely Quarternary Molecular Structure file(s) for 2A25 Structure Factors (76 Kb) Retrieve 2A25 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2A25 from S2C, [Save to disk] Re-refined 2a25 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2A25 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 2A25

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 3D motif for 2A25, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2a25_A] [2a25] [2a25_B] SWISS-PROT database: [Q9HB71] [Q8IUQ4] Domain organization of [CYBP_HUMAN] [SIAH1_HUMAN] by SWISSPFAM

Other resources with information on 2A25

Community annotation for 2A25 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Images from IMB Jena Image Library of Biological Macromolecules.

You may enter another PDB ID code

Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]

---

OCA© by Jaime Prilusky, 1996-2014,2022 Bioinformatics Unit Weizmann Institute of Science

---