1G13	Ligand Binding Protein	date	Oct 10, 2000
title	Human Gm2 Activator Structure
authors	C.S.Wright, S.C.Li, F.Rastinejad
compound		source
Molecule: Ganglioside M2 Activator Protein Chain: A, B, C Fragment: Residues 39-200 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Organ: Kidney Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Pt7-7 Expression_system_vector: Plasmid
symmetry	Space Group: P 21 21 21	R_factor 0.215 R_Free 0.258
crystal cell	length a length b length c angle alpha angle beta angle gamma 63.420 85.630 120.070 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	EPE, MSE	enzyme
related structures	by homologous chain: 1PUB, 1TJJ
Gene Ontology	Chain Function Process Component A, C, B
Primary reference	Crystal structure of human GM2-activator protein with a novel beta-cup topology., Wright CS, Li SC, Rastinejad F, J Mol Biol 2000 Dec 1;304(3):411-22. PMID:11090283

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (88 Kb) [Save to disk] Biological Unit Coordinates (1g13.pdb1.gz) 30 Kb Biological Unit Coordinates (1g13.pdb2.gz) 30 Kb Biological Unit Coordinates (1g13.pdb3.gz) 29 Kb Biological Unit Coordinates (1g13.pdb4.gz) 57 Kb LPC: Ligand-Protein Contacts for 1G13 CSU: Contacts of Structural Units for 1G13 Likely Quarternary Molecular Structure file(s) for 1G13 Structure Factors (357 Kb) Retrieve 1G13 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1G13 from S2C, [Save to disk] Re-refined 1g13 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1G13 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 1G13

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 1G13, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1g13a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1g13b_, region B [Jmol] [rasmolscript] [script source]     - Domain d1g13c_, region C [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: [1g13_A] [1g13_B] [1g13_C] [1g13] SWISS-PROT database: [P17900] Domain organization of [SAP3_HUMAN] by SWISSPFAM Domain found in 1G13: [ML ] by SMART

Other resources with information on 1G13

Community annotation for 1G13 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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