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- PDB-1kq9: Human methionine aminopeptidase type II in complex with L-methionine -

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Basic information

Entry
Database: PDB / ID: 1kq9
TitleHuman methionine aminopeptidase type II in complex with L-methionine
ComponentsMethionine aminopeptidase 2
KeywordsHYDROLASE / central b-sheet and two pairs of a-helices
Function / homology
Function and homology information


N-terminal protein amino acid modification / peptidyl-methionine modification / methionyl aminopeptidase / initiator methionyl aminopeptidase activity / metalloexopeptidase activity / metalloaminopeptidase activity / aminopeptidase activity / protein processing / Inactivation, recovery and regulation of the phototransduction cascade / RNA binding ...N-terminal protein amino acid modification / peptidyl-methionine modification / methionyl aminopeptidase / initiator methionyl aminopeptidase activity / metalloexopeptidase activity / metalloaminopeptidase activity / aminopeptidase activity / protein processing / Inactivation, recovery and regulation of the phototransduction cascade / RNA binding / metal ion binding / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Peptidase M24A, methionine aminopeptidase, subfamily 2 / : / Peptidase M24A, methionine aminopeptidase, subfamily 2, binding site / Methionine aminopeptidase subfamily 2 signature. / Peptidase M24, methionine aminopeptidase / Creatine Amidinohydrolase / Creatinase/methionine aminopeptidase superfamily / Peptidase M24 / Metallopeptidase family M24 / Creatinase/aminopeptidase-like ...Peptidase M24A, methionine aminopeptidase, subfamily 2 / : / Peptidase M24A, methionine aminopeptidase, subfamily 2, binding site / Methionine aminopeptidase subfamily 2 signature. / Peptidase M24, methionine aminopeptidase / Creatine Amidinohydrolase / Creatinase/methionine aminopeptidase superfamily / Peptidase M24 / Metallopeptidase family M24 / Creatinase/aminopeptidase-like / Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain / Arc Repressor Mutant, subunit A / Winged helix DNA-binding domain superfamily / Winged helix-like DNA-binding domain superfamily / Alpha-Beta Complex / Orthogonal Bundle / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
METHIONINE / TERTIARY-BUTYL ALCOHOL / Methionine aminopeptidase 2
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / FOURIER SYNTHESIS / Resolution: 1.9 Å
AuthorsNonato, M.C. / Widom, J. / Clardy, J.
CitationJournal: Bioorg.Med.Chem.Lett. / Year: 2006
Title: Human methionine aminopeptidase type 2 in complex with L- and D-methionine
Authors: Nonato, M.C. / Widom, J. / Clardy, J.
History
DepositionJan 4, 2002Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 9, 2003Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 16, 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 / pdbx_struct_conn_angle / struct_conn / 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 / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _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_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Nov 20, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Methionine aminopeptidase 2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)53,3405
Polymers52,9861
Non-polymers3544
Water3,675204
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)90.069, 98.660, 101.370
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number20
Cell settingorthorhombic
Space group name H-MC2221
Components on special symmetry positions
IDModelComponents
11A-748-

HOH

21A-802-

HOH

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Components

#1: Protein Methionine aminopeptidase 2 / E.C.3.4.11.18 / methionyl aminopeptidase 2 / MetAP 2 / Peptidase M 2 / Initiation factor 2 associated 67 kDa ...methionyl aminopeptidase 2 / MetAP 2 / Peptidase M 2 / Initiation factor 2 associated 67 kDa glycoprotein / p67 / p67eIF2


Mass: 52985.551 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cellular location: CYTOPLASM / Cell line (production host): SF21 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P50579, methionyl aminopeptidase
#2: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#3: Chemical ChemComp-MET / METHIONINE


Type: L-peptide linking / Mass: 149.211 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C5H11NO2S
#4: Chemical ChemComp-TBU / TERTIARY-BUTYL ALCOHOL / 2-METHYL-2-PROPANOL


Mass: 74.122 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C4H10O
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 204 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY

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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: 2.73 Å3/Da / Density % sol: 42.09 % / Description: 54.6
Crystal growTemperature: 277 K / Method: vapor diffusion, sitting drop / pH: 5.5
Details: 18-23% t-butanol in 70 mM sodium citrate buffer, pH 5.3 to 5.6, 3 mM DTT (DL-dithiothreitol), VAPOR DIFFUSION, SITTING DROP at 277K, pH 5.5
Crystal grow
*PLUS
pH: 7.4 / Method: vapor diffusion
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetailsChemical formula
110 mMHEPES1droppH7.4
2100 mM1dropNaCl
310 %glycerol1drop
425 mg/mlprotein1drop
518-23 %tert-butanol1reservoir
670 mMsodium citrate1reservoirpH5.3-5.6

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 14-BM-C
DetectorType: ADSC QUANTUM 4 / Detector: CCD
RadiationMonochromator: bent conical Si-mirror / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthRelative weight: 1
ReflectionResolution: 1.9→66 Å / Num. obs: 33600 / % possible obs: 94 % / Observed criterion σ(I): 3 / Redundancy: 3.24 % / Biso Wilson estimate: 21.07 Å2 / Rmerge(I) obs: 0.042 / Net I/σ(I): 23.24
Reflection shellResolution: 1.9→1.97 Å / Rmerge(I) obs: 0.046 / Num. unique all: 3411 / % possible all: 96.5
Reflection
*PLUS
Highest resolution: 1.9 Å / Lowest resolution: 50 Å / % possible obs: 94 % / Redundancy: 3.4 %

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Processing

Software
NameVersionClassification
MOSFLMdata reduction
SCALAdata scaling
REFMACrefinement
CCP4(SCALA)data scaling
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: PDB ENTRY 1BN5

1bn5


Resolution: 1.9→66 Å / Isotropic thermal model: isotropic / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.20663 1701 5.1 %RANDOM
Rwork0.17792 ---
obs0.1794 31888 93.7 %-
Displacement parametersBiso mean: 24.303 Å2
Baniso -1Baniso -2Baniso -3
1-1 Å20 Å20 Å2
2---0.87 Å20 Å2
3----0.14 Å2
Refinement stepCycle: LAST / Resolution: 1.9→66 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2722 0 11 209 2942
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONp_bond_d0.0070.021
X-RAY DIFFRACTIONp_angle_d1.9141.96
X-RAY DIFFRACTIONp_angle_deg1.9141.96
X-RAY DIFFRACTIONp_mcbond_it3.0872
X-RAY DIFFRACTIONp_mcangle_it4.1193
X-RAY DIFFRACTIONp_scbond_it3.6562
X-RAY DIFFRACTIONp_scangle_it5.3233
Refinement
*PLUS
Highest resolution: 1.9 Å / Lowest resolution: 50 Å / % reflection Rfree: 5 % / Rfactor Rfree: 0.209 / Rfactor Rwork: 0.181
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONp_angle_d
X-RAY DIFFRACTIONp_bond_d0.07
X-RAY DIFFRACTIONp_angle_deg1.88

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