1SK4	Immune System	date	Mar 04, 2004
title	Crystal Structure Of The C-Terminal Peptidoglycan-Binding Do Human Peptidoglycan Recognition Protein Ialpha
authors	R.Guan, E.L.Malchiodi, W.Qian, P.Schuck, R.A.Mariuzza
compound		source
Molecule: Peptidoglycan Recognition Protein I-Alpha Chain: A Synonym: Peptidoglycan Recognition Protein Intermediate Alp I-Alpha, Pglyrpialpha; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Pgrpia Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 De3 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pt7-7
symmetry	Space Group: P 32 2 1	R_factor 0.196 R_Free 0.212
crystal cell	length a length b length c angle alpha angle beta angle gamma 64.464 64.464 63.996 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.65 Å
ligand	CSO, NA	enzyme
related structures	by homologous chain: 1TWQ
Gene Ontology	Chain Function Process Component A
Primary reference	Crystal structure of the C-terminal peptidoglycan-binding domain of human peptidoglycan recognition protein Ialpha., Guan R, Malchiodi EL, Qian W, Schuck P, Mariuzza RA, J Biol Chem 2004 May 12;. PMID:15140887

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (33 Kb) [Save to disk] Biological Unit Coordinates (1sk4.pdb1.gz) 28 Kb Biological Unit Coordinates (1sk4.pdb2.gz) 55 Kb LPC: Ligand-Protein Contacts for 1SK4 CSU: Contacts of Structural Units for 1SK4 Likely Quarternary Molecular Structure file(s) for 1SK4 Structure Factors (142 Kb) Retrieve 1SK4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SK4 from S2C, [Save to disk] Re-refined 1sk4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1SK4 in 3D

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Visual 3D analysis of 1SK4

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 1SK4, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1sk4a_, region A [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1sk4] [1sk4_A] SWISS-PROT database: [Q96LB9] Domain organization of [PGRP3_HUMAN] by SWISSPFAM Domains found in 1SK4: [Ami_2] [PGRP ] by SMART

Other resources with information on 1SK4

Community annotation for 1SK4 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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