2APH	Immune System	date	Aug 16, 2005
title	Crystal Structure Of Human Pgrp-Ialphac In Complex With Mura Pentapeptide
authors	R.Guan, A.Roychowdjury, G.Boons, R.A.Mariuzza
compound		source
Molecule: Peptidoglycan Recognition Protein I-Alpha Chain: A, B Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Pglyrp3, Pgrpia Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3) Expression_system_vector_type: Plasmid Expression_system_vector: Pt7-7
Molecule: Muramyl Pentapeptide Chain: C, D Engineered: Yes		Synthetic: Yes Organism_scientific: Synthetic Construct Organism_taxid: 32630 Other_details: Muramyl Pentapeptide Was Synthesized Chemica
symmetry	Space Group: P 1 21 1	R_factor 0.227 R_Free 0.267
crystal cell	length a length b length c angle alpha angle beta angle gamma 37.860 58.630 70.400 90.00 93.65 90.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	AMU, DAL, GMA, NH2, SO4	enzyme
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure of human peptidoglycan recognition protein I alpha bound to a muramyl pentapeptide from Gram-positive bacteria., Guan R, Brown PH, Swaminathan CP, Roychowdhury A, Boons GJ, Mariuzza RA, Protein Sci. 2006 May;15(5):1199-206. PMID:16641493

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (64 Kb) [Save to disk] Biological Unit Coordinates (2aph.pdb1.gz) 30 Kb Biological Unit Coordinates (2aph.pdb2.gz) 30 Kb Biological Unit Coordinates (2aph.pdb3.gz) 58 Kb LPC: Ligand-Protein Contacts for 2APH CSU: Contacts of Structural Units for 2APH Likely Quarternary Molecular Structure file(s) for 2APH Structure Factors (156 Kb) Retrieve 2APH in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2APH from S2C, [Save to disk] Re-refined 2aph structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2APH 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 2APH

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 2APH, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2aph] [2aph_D] [2aph_C] [2aph_A] [2aph_B] SWISS-PROT database: [Q96LB9] Domain organization of [PGRP3_HUMAN] by SWISSPFAM Domains found in 2APH: [Ami_2] [PGRP ] by SMART

Other resources with information on 2APH

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

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