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- PDB-1dsu: HUMAN FACTOR D, COMPLEMENT ACTIVATING ENZYME -

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Basic information

Entry
Database: PDB / ID: 1dsu
TitleHUMAN FACTOR D, COMPLEMENT ACTIVATING ENZYME
ComponentsFACTOR D
KeywordsHYDROLASE (SERINE PROTEASE) / COMPLEMENT ACTIVATING ENZYME / HYDROLASE / SERINE PROTEASE
Function / homology
Function and homology information


complement factor D / Alternative complement activation / complement activation, alternative pathway / complement activation / serine-type peptidase activity / platelet alpha granule lumen / response to bacterium / Platelet degranulation / secretory granule lumen / ficolin-1-rich granule lumen ...complement factor D / Alternative complement activation / complement activation, alternative pathway / complement activation / serine-type peptidase activity / platelet alpha granule lumen / response to bacterium / Platelet degranulation / secretory granule lumen / ficolin-1-rich granule lumen / serine-type endopeptidase activity / Neutrophil degranulation / proteolysis / extracellular exosome / extracellular region
Similarity search - Function
Serine proteases, trypsin family, histidine active site / Serine proteases, trypsin family, serine active site / Peptidase S1A, chymotrypsin family / Serine proteases, trypsin family, histidine active site. / Serine proteases, trypsin domain profile. / Serine proteases, trypsin family, serine active site. / Trypsin-like serine protease / Serine proteases, trypsin domain / Trypsin / Trypsin-like serine proteases ...Serine proteases, trypsin family, histidine active site / Serine proteases, trypsin family, serine active site / Peptidase S1A, chymotrypsin family / Serine proteases, trypsin family, histidine active site. / Serine proteases, trypsin domain profile. / Serine proteases, trypsin family, serine active site. / Trypsin-like serine protease / Serine proteases, trypsin domain / Trypsin / Trypsin-like serine proteases / Thrombin, subunit H / Peptidase S1, PA clan, chymotrypsin-like fold / Peptidase S1, PA clan / Beta Barrel / Mainly Beta
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / Resolution: 2 Å
AuthorsNarayana, S.V.L. / Volanakis, J.E. / Delucas, L.J.
Citation
Journal: J.Mol.Biol. / Year: 1994
Title: Structure of human factor D. A complement system protein at 2.0 A resolution.
Authors: Narayana, S.V. / Carson, M. / el-Kabbani, O. / Kilpatrick, J.M. / Moore, D. / Chen, X. / Bugg, C.E. / Volanakis, J.E. / DeLucas, L.J.
#1: Journal: J.Mol.Biol. / Year: 1991
Title: Crystallization and Preliminary X-Ray Investigation of Factor D of Human Complement
Authors: Narayana, S.V. / Kilpatrick, J.M. / El-Kabbani, O. / Babu, Y.S. / Bugg, C.E. / Volanakis, J.E. / Delucas, L.J.
History
DepositionSep 15, 1995-
Revision 1.0Aug 17, 1996Provider: repository / Type: Initial release
Revision 1.1Mar 25, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: FACTOR D
B: FACTOR D


Theoretical massNumber of molelcules
Total (without water)48,8782
Polymers48,8782
Non-polymers00
Water1,36976
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)40.990, 65.020, 40.360
Angle α, β, γ (deg.)101.26, 109.89, 74.32
Int Tables number1
Space group name H-MP1
Noncrystallographic symmetry (NCS)NCS oper: (Code: given
Matrix: (0.3219, 0.08175, -0.91432), (0.1012, -0.9935, -0.0515), (-0.9341, -0.0789, -0.3281)
Vector: -0.315, -0.129, -0.129)

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Components

#1: Protein FACTOR D /


Mass: 24438.807 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P00746, complement factor D
#2: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 76 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 1.98 Å3/Da / Density % sol: 37 %
Crystal
*PLUS
Crystal grow
*PLUS
Temperature: 22 ℃ / pH: 5.4 / Method: vapor diffusion, hanging drop / Details: Narayana, S.V., (1991) J.Mol.Biol., 219, 1.
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formulaDetails
150 mMMES1reservoir
2200 mM1reservoirNaCl
340 %(w/v)PEG60001reservoir
48.5 mg/mlprotein1drop
550 mMMES1drop
6100 mM1dropNaCl
7reservoir1drop0.002ml. without NaCl

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Data collection

Diffraction sourceWavelength: 1.5418
DetectorType: XENTRONICS / Detector: AREA DETECTOR
RadiationMonochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionRedundancy: 4 % / Rmerge(I) obs: 0.06

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Processing

Software
NameClassification
XENGENdata collection
X-PLORmodel building
X-PLORrefinement
XENGENdata reduction
X-PLORphasing
RefinementResolution: 2→7.5 Å / σ(F): 1.5
RfactorNum. reflection
Rfree0.203 -
Rwork0.188 -
obs0.188 23681
Refinement stepCycle: LAST / Resolution: 2→7.5 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3424 0 0 76 3500
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONx_bond_d0.016
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it1.481.5
X-RAY DIFFRACTIONx_mcangle_it2.032
X-RAY DIFFRACTIONx_scbond_it2.112
X-RAY DIFFRACTIONx_scangle_it2.82.5
Software
*PLUS
Name: X-PLOR / Classification: refinement
Refinement
*PLUS
Rfactor Rfree: 0.203
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal targetDev ideal
X-RAY DIFFRACTIONx_bond_d0.02
X-RAY DIFFRACTIONx_angle_d0.030.031
X-RAY DIFFRACTIONx_dihedral_angle_d3.53.1

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