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- PDB-1ib0: CRYSTAL STRUCTURE OF RAT B5R IN COMPLEX WITH FAD AND NAD -

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Basic information

Entry
Database: PDB / ID: 1ib0
TitleCRYSTAL STRUCTURE OF RAT B5R IN COMPLEX WITH FAD AND NAD
ComponentsNADH-CYTOCHROME B5 REDUCTASE
KeywordsOXYGEN STORAGE/TRANSPORT / electron transfer / methemologobinemia / NADH / FAD / OXYGEN STORAGE-TRANSPORT COMPLEX
Function / homology
Function and homology information


Phase I - Functionalization of compounds / nitric-oxide synthase complex / Vitamin C (ascorbate) metabolism / cytochrome-b5 reductase / cytochrome-b5 reductase activity, acting on NAD(P)H / nitrite reductase (NO-forming) activity / Neutrophil degranulation / cholesterol biosynthetic process / AMP binding / nitric oxide biosynthetic process ...Phase I - Functionalization of compounds / nitric-oxide synthase complex / Vitamin C (ascorbate) metabolism / cytochrome-b5 reductase / cytochrome-b5 reductase activity, acting on NAD(P)H / nitrite reductase (NO-forming) activity / Neutrophil degranulation / cholesterol biosynthetic process / AMP binding / nitric oxide biosynthetic process / FAD binding / lipid droplet / mitochondrial membrane / ADP binding / NAD binding / flavin adenine dinucleotide binding / mitochondrial outer membrane / endoplasmic reticulum membrane / mitochondrion
Similarity search - Function
NADH:cytochrome b5 reductase-like / Flavoprotein pyridine nucleotide cytochrome reductase-like, FAD-binding domain / Oxidoreductase FAD-binding domain / Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module / Translation factors / Elongation Factor Tu (Ef-tu); domain 3 / Flavoprotein pyridine nucleotide cytochrome reductase / Oxidoreductase FAD/NAD(P)-binding / Oxidoreductase NAD-binding domain / FAD-binding domain, ferredoxin reductase-type ...NADH:cytochrome b5 reductase-like / Flavoprotein pyridine nucleotide cytochrome reductase-like, FAD-binding domain / Oxidoreductase FAD-binding domain / Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module / Translation factors / Elongation Factor Tu (Ef-tu); domain 3 / Flavoprotein pyridine nucleotide cytochrome reductase / Oxidoreductase FAD/NAD(P)-binding / Oxidoreductase NAD-binding domain / FAD-binding domain, ferredoxin reductase-type / Ferredoxin-NADP reductase (FNR), nucleotide-binding domain / Ferredoxin reductase-type FAD binding domain profile. / Riboflavin synthase-like beta-barrel / Beta Barrel / Rossmann fold / 3-Layer(aba) Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
FLAVIN-ADENINE DINUCLEOTIDE / NICOTINAMIDE-ADENINE-DINUCLEOTIDE / NADH-cytochrome b5 reductase 3
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.3 Å
AuthorsBewley, M.C. / Marohnic, C.C. / Barber, M.J.
CitationJournal: Biochemistry / Year: 2001
Title: The structure and biochemistry of NADH-dependent cytochrome b5 reductase are now consistent.
Authors: Bewley, M.C. / Marohnic, C.C. / Barber, M.J.
History
DepositionMar 26, 2001Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 12, 2001Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 9, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: NADH-CYTOCHROME B5 REDUCTASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)32,7643
Polymers31,3151
Non-polymers1,4492
Water2,576143
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)67.612, 69.458, 78.787
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein NADH-CYTOCHROME B5 REDUCTASE


Mass: 31315.178 Da / Num. of mol.: 1 / Fragment: SOLUBLE DOMAIN
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: DIA1 / Plasmid: PET23B / Species (production host): Escherichia coli / Production host: Escherichia coli BL21 (bacteria) / Strain (production host): BL21 / References: UniProt: P20070, cytochrome-b5 reductase
#2: Chemical ChemComp-FAD / FLAVIN-ADENINE DINUCLEOTIDE


Mass: 785.550 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H33N9O15P2 / Comment: FAD*YM
#3: Chemical ChemComp-NAD / NICOTINAMIDE-ADENINE-DINUCLEOTIDE


Mass: 663.425 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C21H27N7O14P2 / Comment: NAD*YM
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 143 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.95 Å3/Da / Density % sol: 58.33 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 7.5
Details: PEG 6000, MPD, Hepes, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal grow
*PLUS
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails
18 %PEG60001reservoir
25 %MPD1reservoir
3100 mMHEPES1reservoirpH7.5

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Data collection

DiffractionMean temperature: 99 K
Diffraction sourceSource: SYNCHROTRON / Site: NSLS / Beamline: X12B / Wavelength: 0.97 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Mar 16, 2001 / Details: monochromator
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97 Å / Relative weight: 1
ReflectionResolution: 2.3→30.2 Å / Num. all: 1 / Num. obs: 15598 / % possible obs: 97.3 % / Observed criterion σ(F): -3 / Observed criterion σ(I): -3 / Redundancy: 4.1 % / Biso Wilson estimate: 24.99 Å2 / Rmerge(I) obs: 0.091 / Net I/σ(I): 8.5
Reflection shellResolution: 2.3→2.4 Å / Redundancy: 3.5 % / Rmerge(I) obs: 0.315 / % possible all: 90.4
Reflection
*PLUS
Lowest resolution: 30 Å
Reflection shell
*PLUS
% possible obs: 90.4 % / Mean I/σ(I) obs: 2.4

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Processing

Software
NameVersionClassification
AMoREphasing
CNS1refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1I7P

1i7p


Resolution: 2.3→30 Å / σ(F): 0 / σ(I): 0 / Stereochemistry target values: engh & huber
RfactorNum. reflectionSelection details
Rfree0.244 1108 random
Rwork0.218 --
all-15598 -
obs-14496 -
Refinement stepCycle: LAST / Resolution: 2.3→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2184 0 97 143 2424
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.011
X-RAY DIFFRACTIONc_angle_d1.8
Software
*PLUS
Name: CNS / Version: 1 / Classification: refinement
Refinement
*PLUS
Highest resolution: 2.3 Å / Lowest resolution: 30 Å / σ(F): 0 / Rfactor obs: 0.218 / Rfactor Rfree: 0.265
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.01
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_deg1.8

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