1FFF	Hydrolase Hydrolase Inhibitor	date	Jul 25, 2000
title	Structural Implications Of Drug Resistant Mutants Of Hiv-1 P High Resolution Crystal Structures Of The Mutant Proteases Analog Complexes.
authors	B.Mahalingam, J.M.Louis, R.W.Harrison, I.T.Weber
compound		source
Molecule: Protease Retropepsin Chain: C, D Ec: 3.4.23.16 Engineered: Yes Mutation: Yes		Organism_scientific: Human Immunodeficiency Virus 1 Organism_taxid: 11676 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 21 21 21	R_factor 0.212 R_Free 0.248
crystal cell	length a length b length c angle alpha angle beta angle gamma 50.908 58.255 61.148 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.90 Å
ligand	0Q4	enzyme	Hydrolase E.C.3.4.23.16 BRENDA
related structures	by homologous chain: 1FGC, 2BPV
Gene Ontology	Chain Function Process Component D, C
Primary reference	Structural implications of drug-resistant mutants of HIV-1 protease: high-resolution crystal structures of the mutant protease/substrate analogue complexes., Mahalingam B, Louis JM, Hung J, Harrison RW, Weber IT, Proteins 2001 Jun 1;43(4):455-64. PMID:11340661

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (38 Kb) [Save to disk] Biological Unit Coordinates (1fff.pdb1.gz) 33 Kb LPC: Ligand-Protein Contacts for 1FFF CSU: Contacts of Structural Units for 1FFF Likely Quarternary Molecular Structure file(s) for 1FFF Retrieve 1FFF in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1FFF from S2C, [Save to disk]

View 1FFF 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 1FFF

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1FFF, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1fffc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1fffd_, 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: [1fff_A] [1fff] [1fff_D] [1fff_C] SWISS-PROT database: [P04587] Domain organization of [POL_HV1B5] by SWISSPFAM

Other resources with information on 1FFF

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

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