1AXA	Aspartyl Protease	date	Oct 13, 1997
title	Active-Site Mobility In Human Immunodeficiency Virus Type 1 As Demonstrated By Crystal Structure Of A28s Mutant
authors	L.Hong, J.A.Hartsuck, S.Foundling, J.Ermolieff, J.Tang
compound		source
Molecule: Hiv-1 Protease Chain: A, B Ec: 3.4.23.16 Engineered: Yes Mutation: Yes		Organism_scientific: Human Immunodeficiency Virus 1 Organism_taxid: 11676 Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21
symmetry	Space Group: P 61	R_factor 0.194 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 63.554 63.554 83.660 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	U0E	enzyme	Hydrolase E.C.3.4.23.16 BRENDA
related structures	by homologous chain: 1HTG, 1WBK
Gene Ontology	Chain Function Process Component A, B
Primary reference	Active-site mobility in human immunodeficiency virus, type 1, protease as demonstrated by crystal structure of A28S mutant., Hong L, Hartsuck JA, Foundling S, Ermolieff J, Tang J, Protein Sci 1998 Feb;7(2):300-5. PMID:9521105

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (38 Kb) [Save to disk] Biological Unit Coordinates (1axa.pdb1.gz) 34 Kb LPC: Ligand-Protein Contacts for 1AXA CSU: Contacts of Structural Units for 1AXA Likely Quarternary Molecular Structure file(s) for 1AXA Retrieve 1AXA in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1AXA from S2C, [Save to disk]

View 1AXA 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 1AXA

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1AXA, from MSDmotif at EBI Genome occurence of 1AXA's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1axaa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1axab_, region B [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: [1axa] [1axa_B] [1axa_A] SWISS-PROT database: [P03366] Domain organization of [POL_HV1B1] by SWISSPFAM

Other resources with information on 1AXA

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

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