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- PDB-2b3k: Crystal structure of Human Methionine Aminopeptidase Type I in th... -

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Basic information

Entry
Database: PDB / ID: 2b3k
TitleCrystal structure of Human Methionine Aminopeptidase Type I in the holo form
ComponentsMethionine aminopeptidase 1Methionyl aminopeptidase
KeywordsHYDROLASE / methionine aminopeptidase / metalloprotease / petabread fold
Function / homology
Function and homology information


N-terminal protein amino acid modification / peptidyl-methionine modification / initiator methionyl aminopeptidase activity / methionyl aminopeptidase / metalloexopeptidase activity / metalloaminopeptidase activity / protein maturation / aminopeptidase activity / platelet aggregation / Inactivation, recovery and regulation of the phototransduction cascade ...N-terminal protein amino acid modification / peptidyl-methionine modification / initiator methionyl aminopeptidase activity / methionyl aminopeptidase / metalloexopeptidase activity / metalloaminopeptidase activity / protein maturation / aminopeptidase activity / platelet aggregation / Inactivation, recovery and regulation of the phototransduction cascade / regulation of translation / proteolysis / metal ion binding / cytosol / cytoplasm
Similarity search - Function
Zinc finger C6H2-type profile. / MYND-like zinc finger / zf-MYND-like zinc finger, mRNA-binding / Methionine aminopeptidase subfamily 1 signature. / Peptidase M24A, methionine aminopeptidase, subfamily 1 / Peptidase M24, methionine aminopeptidase / Creatine Amidinohydrolase / Creatinase/methionine aminopeptidase superfamily / Peptidase M24 / Metallopeptidase family M24 ...Zinc finger C6H2-type profile. / MYND-like zinc finger / zf-MYND-like zinc finger, mRNA-binding / Methionine aminopeptidase subfamily 1 signature. / Peptidase M24A, methionine aminopeptidase, subfamily 1 / Peptidase M24, methionine aminopeptidase / Creatine Amidinohydrolase / Creatinase/methionine aminopeptidase superfamily / Peptidase M24 / Metallopeptidase family M24 / Creatinase/aminopeptidase-like / Alpha-Beta Complex / Alpha Beta
Similarity search - Domain/homology
ACETATE ION / : / : / Methionine aminopeptidase 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.55 Å
AuthorsAddlagatta, A. / Hu, X. / Liu, J.O. / Matthews, B.W.
CitationJournal: Biochemistry / Year: 2005
Title: Structural Basis for the Functional Differences between Type I and Type II Human Methionine Aminopeptidases(,).
Authors: Addlagatta, A. / Hu, X. / Liu, J.O. / Matthews, B.W.
History
DepositionSep 20, 2005Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 22, 2005Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 1.3Oct 11, 2017Group: Refinement description / Category: software
Item: _software.classification / _software.contact_author ..._software.classification / _software.contact_author / _software.contact_author_email / _software.date / _software.language / _software.location / _software.name / _software.type / _software.version
Revision 1.4Nov 20, 2019Group: Database references / Category: struct_ref_seq_dif / Item: _struct_ref_seq_dif.details
Revision 1.5Aug 23, 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_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.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_atom_id / _pdbx_struct_conn_angle.ptnr2_label_comp_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_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

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Assembly

Deposited unit
A: Methionine aminopeptidase 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)37,2446
Polymers36,9361
Non-polymers3085
Water5,098283
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)47.432, 77.522, 48.308
Angle α, β, γ (deg.)90.00, 90.60, 90.00
Int Tables number4
Space group name H-MP1211

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Methionine aminopeptidase 1 / Methionyl aminopeptidase / MetAP 1 / MAP 1 / Peptidase M 1


Mass: 36935.926 Da / Num. of mol.: 1 / Fragment: residues 81-384
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: METAP1, KIAA0094 / Plasmid: pET15b / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: P53582, methionyl aminopeptidase

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Non-polymers , 5 types, 288 molecules

#2: Chemical ChemComp-CO / COBALT (II) ION


Mass: 58.933 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Co
#3: Chemical ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: K
#4: Chemical ChemComp-ACT / ACETATE ION / Acetate


Mass: 59.044 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H3O2
#5: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL / Glycerol


Mass: 92.094 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H8O3
#6: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 283 / 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: 2.38 Å3/Da / Density % sol: 48.23 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: PEG 2000, potassium chloride, hepes, sodium chloride, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ALS / Beamline: 8.2.1 / Wavelength: 0.977 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Jul 6, 2004 / Details: mirror
RadiationMonochromator: Double Crystal Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.977 Å / Relative weight: 1
ReflectionResolution: 1.55→20 Å / Num. all: 47891 / Num. obs: 47891 / % possible obs: 95.6 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3.5 % / Rmerge(I) obs: 0.055 / Χ2: 1.053
Reflection shellResolution: 1.55→1.61 Å / % possible obs: 79.9 % / Redundancy: 2.7 % / Rmerge(I) obs: 0.479 / Num. measured obs: 4003 / Num. unique all: 47891 / Χ2: 1.065 / % possible all: 80

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Phasing

Phasing MRRfactor: 0.522 / Cor.coef. Fo:Fc: 0.689
Highest resolutionLowest resolution
Translation4.5 Å15 Å

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Processing

Software
NameVersionClassificationNB
DENZOdata reduction
SCALEPACKdata scaling
EPMR2.5phasing
CNSrefinement
PDB_EXTRACT1.7data extraction
DCREDUCEdata reduction
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB Entry 1YJ3

1yj3


Resolution: 1.55→20 Å / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.215 2267 4.5 %random
Rwork0.19 ---
all0.194 47891 --
obs0.19 44908 88.7 %-
Solvent computationBsol: 58.075 Å2
Displacement parametersBiso mean: 24.971 Å2
Baniso -1Baniso -2Baniso -3
1-0.276 Å20 Å2-1.193 Å2
2--4.618 Å20 Å2
3----4.894 Å2
Refinement stepCycle: LAST / Resolution: 1.55→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2396 0 13 283 2692
Xplor file
Refine-IDSerial noParam file
X-RAY DIFFRACTION1CNS_TOPPAR:protein_rep.param
X-RAY DIFFRACTION2CNS_TOPPAR:ion.param
X-RAY DIFFRACTION3CNS_TOPPAR:water.param
X-RAY DIFFRACTION4gol.par
X-RAY DIFFRACTION5act.par

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