1SLI	Hydrolase	date	Mar 28, 1998
title	Leech Intramolecular Trans-Sialidase Complexed With Dana
authors	Y.Luo, S.C.Li, M.Y.Chou, Y.T.Li, M.Luo
compound		source
Molecule: Intramolecular Trans-Sialidase Chain: A Fragment: Devoid Of N-Terminal 28 Residues Ec: 3.2.1.18 Engineered: Yes		Organism_scientific: Macrobdella Decora Organism_common: North American Leech Organism_taxid: 6405 Gene: T7 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 Expression_system_variant: De3 Expression_system_vector_type: Plasmid Expression_system_vector: Pet 15b Expression_system_plasmid: E2-M10 Expression_system_gene: T7
symmetry	Space Group: P 1	R_factor 0.167 R_Free 0.224
crystal cell	length a length b length c angle alpha angle beta angle gamma 46.443 69.516 72.514 113.14 95.39 106.87
method	X-Ray Diffraction	resolution	2.00 Å
ligand	DAN	enzyme	Hydrolase E.C.3.2.1.18 BRENDA
related structures	by homologous chain: 1SLL
Gene Ontology	Chain Function Process Component A
Primary reference	The crystal structure of an intramolecular trans-sialidase with a NeuAc alpha2-->3Gal specificity., Luo Y, Li SC, Chou MY, Li YT, Luo M, Structure 1998 Apr 15;6(4):521-30. PMID:9562562

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (120 Kb) [Save to disk] Biological Unit Coordinates (1sli.pdb1.gz) 116 Kb LPC: Ligand-Protein Contacts for 1SLI CSU: Contacts of Structural Units for 1SLI Likely Quarternary Molecular Structure file(s) for 1SLI Structure Factors (395 Kb) Retrieve 1SLI in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SLI from S2C, [Save to disk] Re-refined 1sli structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1SLI 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 1SLI

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 1SLI, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1sli_2, region 277-759 [Jmol] [rasmolscript] [script source]     - Domain d1sli_1, region 81-276 [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: [1sli_A] [1sli] SWISS-PROT database: [Q27701] Domain organization of [NANL_MACDE] by SWISSPFAM Domain found in 1SLI: [LamG ] by SMART

Other resources with information on 1SLI

Community annotation for 1SLI at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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