1HA5	Toxin	date	Mar 28, 2001
title	Structural Features Of A Zinc-Binding Site In The Superantig Streptococcal Pyrogenic Exotoxin A (Spea1): Implications Fo Class II Recognition.
authors	M.D.Baker, D.M.Gutman, A.C.Papageorgiou, C.M.Collins, K.R.Achary
compound		source
Molecule: Streptococcal Pyogenic Exotoxin A1 Chain: A, B, C, D Fragment: Residues 33-250 Engineered: Yes		Organism_scientific: Streptococcus Pyogenes Organism_taxid: 1314 Expression_system: Escherichia Coli Expression_system_taxid: 511693 Expression_system_strain: Bl21
symmetry	Space Group: P 21 21 2	R_factor 0.214 R_Free 0.283
crystal cell	length a length b length c angle alpha angle beta angle gamma 126.946 101.320 82.019 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.82 Å
ligand	ZN	enzyme
related structures	by homologous chain: 1L0X
Gene Ontology	Chain Function Process Component A, D, C, B
Primary reference	Structural features of a zinc binding site in the superantigen strepococcal pyrogenic exotoxin A (SpeA1): implications for MHC class II recognition., Baker M, Gutman DM, Papageorgiou AC, Collins CM, Acharya KR, Protein Sci. 2001 Jun;10(6):1268-73. PMID:11369867

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (139 Kb) [Save to disk] Biological Unit Coordinates (1ha5.pdb1.gz) 36 Kb Biological Unit Coordinates (1ha5.pdb2.gz) 36 Kb Biological Unit Coordinates (1ha5.pdb3.gz) 36 Kb Biological Unit Coordinates (1ha5.pdb4.gz) 35 Kb LPC: Ligand-Protein Contacts for 1HA5 CSU: Contacts of Structural Units for 1HA5 Likely Quarternary Molecular Structure file(s) for 1HA5 Retrieve 1HA5 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1HA5 from S2C, [Save to disk]

View 1HA5 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 1HA5

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1HA5, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ha5a1, region A:1003-1107 [Jmol] [rasmolscript] [script source]     - Domain d1ha5a2, region A:1108-1220 [Jmol] [rasmolscript] [script source]     - Domain d1ha5b1, region B:2003-2107 [Jmol] [rasmolscript] [script source]     - Domain d1ha5b2, region B:2108-2220 [Jmol] [rasmolscript] [script source]     - Domain d1ha5c1, region C:3003-3107 [Jmol] [rasmolscript] [script source]     - Domain d1ha5c2, region C:3108-3220 [Jmol] [rasmolscript] [script source]     - Domain d1ha5d1, region D:4003-4107 [Jmol] [rasmolscript] [script source]     - Domain d1ha5d2, region D:4108-4220 [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: [1ha5_B] [1ha5] [1ha5_C] [1ha5_A] [1ha5_D] SWISS-PROT database: [P62560] Domain organization of [SPEA_STRPY] by SWISSPFAM

Other resources with information on 1HA5

Community annotation for 1HA5 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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