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- PDB-2dqm: Crystal Structure of Aminopeptidase N complexed with bestatin -

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Basic information

Entry
Database: PDB / ID: 2dqm
TitleCrystal Structure of Aminopeptidase N complexed with bestatin
ComponentsAminopeptidase N
KeywordsHYDROLASE / clan MA / family M1 / gluzincin metallopeptidase / inhibitor complex
Function / homology
Function and homology information


membrane alanyl aminopeptidase / aminopeptidase activity / metallopeptidase activity / proteolysis / zinc ion binding / identical protein binding / plasma membrane
Similarity search - Function
Peptidase M1, alanyl aminopeptidase, C-terminal domain / Aminopeptidase N, middle-beta domain / Peptidase M1, alanyl aminopeptidase / Peptidase M1, alanyl aminopeptidase, C-terminal / Peptidase M1, alanyl aminopeptidase, Ig-like fold / Peptidase M1, alanyl aminopeptidase, C-terminal domain superfamily / Alanyl aminopeptidase, Ig-like domain superfamily / Domain of unknown function (DUF3458) Ig-like fold / Domain of unknown function (DUF3458_C) ARM repeats / Zincin-like fold ...Peptidase M1, alanyl aminopeptidase, C-terminal domain / Aminopeptidase N, middle-beta domain / Peptidase M1, alanyl aminopeptidase / Peptidase M1, alanyl aminopeptidase, C-terminal / Peptidase M1, alanyl aminopeptidase, Ig-like fold / Peptidase M1, alanyl aminopeptidase, C-terminal domain superfamily / Alanyl aminopeptidase, Ig-like domain superfamily / Domain of unknown function (DUF3458) Ig-like fold / Domain of unknown function (DUF3458_C) ARM repeats / Zincin-like fold / Zincin-like - #30 / Zincin-like / tricorn interacting facor f3 domain / Peptidase M1, alanine aminopeptidase/leukotriene A4 hydrolase / Peptidase M1, membrane alanine aminopeptidase / Aminopeptidase N-like , N-terminal domain / Peptidase family M1 domain / Peptidase M1 N-terminal domain / Aminopeptidase N-like , N-terminal domain superfamliy / Neutral Protease Domain 2 / Neutral Protease; domain 2 / Peptidase M4/M1, CTD superfamily / Neutral zinc metallopeptidases, zinc-binding region signature. / Alpha Horseshoe / Immunoglobulin-like / Sandwich / 2-Layer Sandwich / Orthogonal Bundle / Mainly Beta / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
Chem-BES / Aminopeptidase N
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / SYNCHROTRON / FOURIER SYNTHESIS / Resolution: 1.6 Å
AuthorsOnohara, Y. / Nakajima, Y. / Ito, K. / Yoshimoto, T.
CitationJournal: J.Biol.Chem. / Year: 2006
Title: Aminopeptidase N (proteobacteria alanyl aminopeptidase) from Escherichia coli: Crystal structure and conformational change of the methionine 260 residue involved in substrate recognition
Authors: Ito, K. / Nakajima, Y. / Onohara, Y. / Takeo, M. / Nakashima, K. / Matsubara, F. / Ito, T. / Yoshimoto, T.
History
DepositionMay 29, 2006Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Aug 1, 2006Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 25, 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_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _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: Aminopeptidase N
hetero molecules


Theoretical massNumber of molelcules
Total (without water)99,5955
Polymers99,0291
Non-polymers5664
Water17,042946
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)120.417, 120.417, 170.859
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number152
Space group name H-MP3121

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Components

#1: Protein Aminopeptidase N / Alpha-aminoacylpeptide hydrolase


Mass: 99028.641 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: pepN / Plasmid: pBluescript SK II(-) / Production host: Escherichia coli (E. coli) / Strain (production host): XL1-Blue / References: UniProt: P04825, membrane alanyl aminopeptidase
#2: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#3: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: SO4
#4: Chemical ChemComp-BES / 2-(3-AMINO-2-HYDROXY-4-PHENYL-BUTYRYLAMINO)-4-METHYL-PENTANOIC ACID / BESTATIN


Mass: 308.373 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C16H24N2O4 / Comment: protease inhibitor*YM
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 946 / 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: 3.61 Å3/Da / Density % sol: 65.92 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 6.4
Details: the crystal is soaked in 2.2M ammonium sulfate, 0.1M MES pH 6.4, 1mM bestatin. , VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Photon Factory / Beamline: AR-NW12A / Wavelength: 1 Å
DetectorType: ADSC QUANTUM 210 / Detector: CCD / Date: Apr 15, 2005
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.6→50 Å / Num. all: 187171 / Num. obs: 187171 / % possible obs: 99.4 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 6.4 % / Rsym value: 0.068 / Net I/σ(I): 18.8
Reflection shellResolution: 1.6→1.69 Å / Redundancy: 3.9 % / Mean I/σ(I) obs: 3.9 / Num. unique all: 26404 / Rsym value: 0.301 / % possible all: 96.8

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Processing

Software
NameClassification
ADSCdata collection
MOSFLMdata reduction
CNSrefinement
CNSphasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: 2DQ6

2dq6


Resolution: 1.6→20 Å / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.194 9395 -random
Rwork0.182 ---
all-186955 --
obs-186955 99.3 %-
Refine analyze
FreeObs
Luzzati coordinate error0.19 Å0.17 Å
Luzzati d res low-5 Å
Luzzati sigma a0.14 Å0.12 Å
Refinement stepCycle: LAST / Resolution: 1.6→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6949 0 33 946 7928
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.005
X-RAY DIFFRACTIONc_angle_deg1.28
X-RAY DIFFRACTIONc_dihedral_angle_d22.7
X-RAY DIFFRACTIONc_improper_angle_d0.776
LS refinement shellResolution: 1.6→1.69 Å
RfactorNum. reflection
Rfree0.268 976
Rwork0.244 -
obs-16983

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