1N49	Hydrolase Hydrolase Inhibitor	date	Oct 30, 2002
title	Viability Of A Drug-Resistant Hiv-1 Protease Variant: Struct Insights For Better Anti-Viral Therapy
authors	M.Prabu-Jeyabalan, E.A.Nalivaika, N.M.King, C.A.Schiffer
compound		source
Molecule: Protease Chain: A, B, C, D Synonym: Retropepsin Ec: 3.4.23.16 Engineered: Yes Mutation: Yes		Organism_scientific: Human Immunodeficiency Virus 1 Organism_taxid: 11676 Gene: Pol Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Tap106 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pen18
symmetry	Space Group: P 1 21 1	R_factor 0.223 R_Free 0.284
crystal cell	length a length b length c angle alpha angle beta angle gamma 51.620 61.350 59.040 90.00 81.20 90.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand	RIT	enzyme	Hydrolase E.C.3.4.23.16 BRENDA
related structures	by homologous chain: 1U8G, 1UPJ
Gene Ontology	Chain Function Process Component A, D, C, B
Primary reference	Viability of a drug-resistant human immunodeficiency virus type 1 protease variant: structural insights for better antiviral therapy., Prabu-Jeyabalan M, Nalivaika EA, King NM, Schiffer CA, J Virol 2003 Jan;77(2):1306-15. PMID:12502847

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (65 Kb) [Save to disk] Biological Unit Coordinates (1n49.pdb1.gz) 32 Kb Biological Unit Coordinates (1n49.pdb2.gz) 31 Kb LPC: Ligand-Protein Contacts for 1N49 CSU: Contacts of Structural Units for 1N49 Likely Quarternary Molecular Structure file(s) for 1N49 Retrieve 1N49 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1N49 from S2C, [Save to disk]

View 1N49 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 1N49

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1N49, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1n49a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1n49b_, region B [Jmol] [rasmolscript] [script source]     - Domain d1n49c_, region C [Jmol] [rasmolscript] [script source]     - Domain d1n49d_, region D [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: [1n49_C] [1n49_B] [1n49_A] [1n49] [1n49_D] SWISS-PROT database: [P03369] Domain organization of [POL_HV1A2] by SWISSPFAM

Other resources with information on 1N49

Community annotation for 1N49 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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