1B1C	Oxidoreductase	date	Nov 19, 1998
title	Crystal Structure Of The Fmn-Binding Domain Of Human Cytochrome P450 Reductase At 1.93a Resolution
authors	Q.Zhao, S.Modi, G.Smith, M.Paine, P.D.Mcdonagh, C.R.Wolf, D.Tew, L.Y.Lian, G.C.K.Roberts, H.P.C.Driessen
compound		source
Molecule: Protein (Nadph-Cytochrome P450 Reductase) Chain: A Fragment: Fmn-Binding Domain Synonym: P450r-Fmn Ec: 1.6.2.4		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Plasmid: Pmp Cloned Into Pet15b
symmetry	Space Group: P 1 21 1	R_factor 0.197 R_Free 0.243
crystal cell	length a length b length c angle alpha angle beta angle gamma 39.310 51.440 47.600 90.00 105.93 90.00
method	X-Ray Diffraction	resolution	1.93 Å
ligand	CA, FMN	enzyme	Oxidoreductase E.C.1.6.2.4 BRENDA
related structures	by homologous chain: 1AMO, 1JA1
Gene Ontology	Chain Function Process Component A NADPH-hemoprotein reductase ... cytochrome-b5 reductase acti... protein binding electron carrier activity FMN binding oxidoreductase activity hydrolase activity enzyme binding iron-cytochrome-c reductase ... flavin adenine dinucleotide ... NADP binding regulation of growth plate c... response to nutrient carnitine metabolic process flavonoid metabolic process internal peptidyl-lysine ace... fatty acid oxidation positive regulation of chond... positive regulation of monoo... response to drug negative regulation of apopt... negative regulation of cyste... nitrate catabolic process positive regulation of chole... positive regulation of smoot... nitric oxide catabolic proce... oxidation-reduction process negative regulation of lipas... demethylation cellular response to gonadot... cellular response to follicl... cellular response to peptide... positive regulation of stero... regulation of cholesterol me... cellular organofluorine meta... mitochondrion endoplasmic reticulum endoplasmic reticulum membra... membrane intracellular membrane-bound...
Primary reference	Crystal structure of the FMN-binding domain of human cytochrome P450 reductase at 1.93 A resolution., Zhao Q, Modi S, Smith G, Paine M, McDonagh PD, Wolf CR, Tew D, Lian LY, Roberts GC, Driessen HP, Protein Sci 1999 Feb;8(2):298-306. PMID:10048323

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (33 Kb) [Save to disk] Biological Unit Coordinates (1b1c.pdb1.gz) 29 Kb LPC: Ligand-Protein Contacts for 1B1C CSU: Contacts of Structural Units for 1B1C Likely Quarternary Molecular Structure file(s) for 1B1C Structure Factors (85 Kb) Retrieve 1B1C in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1B1C from S2C, [Save to disk] Re-refined 1b1c structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1B1C 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 1B1C

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Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 1B1C, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1b1ca_, region A [Jmol] [rasmolscript] [script source] Fold representative 1b1c from FSSP and Dali (Families of Structurally Similar Proteins) 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: [1b1c_A] SWISS-PROT database: [P16435] Domain organization of [NCPR_HUMAN] by SWISSPFAM Alignments of the sequence of 1B1C with the sequences similar proteins can be viewed for 1B1C's classification [NCPR_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [NCPR_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 1B1C

Community annotation for 1B1C at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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