1SQ7	Isomerase	date	Mar 18, 2004
title	Understanding Protein Lids: Structural Analysis Of Active Hi Mutants In Triosephosphate Isomerase
authors	I.Kursula, M.Salin, J.Sun, B.V.Norledge, A.M.Haapalainen, N.S.Sam R.K.Wierenga
compound		source
Molecule: Triosephosphate Isomerase Chain: A, B Synonym: Tim Ec: 5.3.1.1 Engineered: Yes Mutation: Yes		Organism_scientific: Gallus Gallus Organism_common: Chicken Organism_taxid: 9031 Gene: Tpi1 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Df502 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pbsx1c
symmetry	Space Group: P 61 2 2	R_factor 0.202 R_Free 0.252
crystal cell	length a length b length c angle alpha angle beta angle gamma 61.670 61.670 500.886 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.85 Å
ligand		enzyme	Isomerase E.C.5.3.1.1 BRENDA
related structures	by homologous chain: 1R2S, 1SSD
Gene Ontology	Chain Function Process Component A, B
Primary reference	Understanding protein lids: structural analysis of active hinge mutants in triosephosphate isomerase., Kursula I, Salin M, Sun J, Norledge BV, Haapalainen AM, Sampson NS, Wierenga RK, Protein Eng Des Sel 2004 Apr;17(4):375-382. Epub 2004 May 27. PMID:15166315

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (80 Kb) [Save to disk] Biological Unit Coordinates (1sq7.pdb1.gz) 75 Kb CSU: Contacts of Structural Units for 1SQ7 Likely Quarternary Molecular Structure file(s) for 1SQ7 Structure Factors (123 Kb) Retrieve 1SQ7 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SQ7 from S2C, [Save to disk] Re-refined 1sq7 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1SQ7 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 1SQ7

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 1SQ7, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1sq7a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1sq7b_, region B [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1sq7_B] [1sq7_A] [1sq7] SWISS-PROT database: [P00940] Domain organization of [TPIS_CHICK] by SWISSPFAM

Other resources with information on 1SQ7

Community annotation for 1SQ7 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

---