2Q4G	Hydrolase Hydrolase Inhibitor	date	May 31, 2007
title	Ensemble Refinement Of The Protein Crystal Structure Of Huma Ribonuclease Inhibitor Complexed With Ribonuclease I
authors	E.J.Levin, D.A.Kondrashov, G.E.Wesenberg, G.N.Phillips Jr., Cent Eukaryotic Structural Genomics (Cesg)
compound		source
Molecule: Ribonuclease Pancreatic Chain: X, Z Synonym: Rnase 1, Rnase A, Rnase Upi-1, Rib-1, Hp-Rnase Ec: 3.1.27.5 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Rnase1, Rib1, Rns1 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet22b
Molecule: Ribonuclease Inhibitor Chain: W, Y Synonym: Ribonucleaseangiogenin Inhibitor 1, Rai, Placenta Ribonuclease Inhibitor, Rnase Inhibitor, Ri; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Rnh1, Pri, Rnh Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet22b
symmetry	Space Group: P 21 21 21	R_factor 0.161 R_Free 0.224
crystal cell	length a length b length c angle alpha angle beta angle gamma 71.338 107.546 155.036 90.00 90.00 90.00
method	X-Ray Diffraction, 8 Models	resolution	1.95 Å
ligand	CIT	enzyme	Hydrolase E.C.3.1.27.5 BRENDA
Gene Ontology	Chain Function Process Component W, Y ribonuclease inhibitor activ... Z, X ribonuclease A activity
Primary reference	Inhibition of human pancreatic ribonuclease by the human ribonuclease inhibitor protein., Johnson RJ, McCoy JG, Bingman CA, Phillips GN Jr, Raines RT, J Mol Biol. 2007 Apr 27;368(2):434-49. Epub 2007 Feb 9. PMID:17350650

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (1522 Kb) [Save to disk] Biological Unit Coordinates (2q4g.pdb1.gz) 193 Kb LPC: Ligand-Protein Contacts for 2Q4G CSU: Contacts of Structural Units for 2Q4G Likely Quarternary Molecular Structure file(s) for 2Q4G Structure Factors (1869 Kb) Retrieve 2Q4G in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2Q4G from S2C, [Save to disk]

View 2Q4G in 3D

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Visual 3D analysis of 2Q4G

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2Q4G, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2q4g_Z] [2q4g_W] [2q4g] [2q4g_Y] [2q4g_X] SWISS-PROT database: [P13489] [P07998] Domain organization of [RINI_HUMAN] [RNAS1_HUMAN] by SWISSPFAM Domains found in 2Q4G: [LRR] [LRR_RI] [RNAse_Pc ] by SMART

Other resources with information on 2Q4G

Community annotation for 2Q4G at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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