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- PDB-2b3h: Crystal structure of Human Methionine Aminopeptidase Type I with ... -

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Basic information

Entry
Database: PDB / ID: 2b3h
TitleCrystal structure of Human Methionine Aminopeptidase Type I with a third cobalt in the active site
ComponentsMethionine aminopeptidase 1
KeywordsHYDROLASE / methionine aminopeptidase / metalloprotease / pitabread fold
Function / homology
Function and homology information


methionyl aminopeptidase / initiator methionyl aminopeptidase activity / metalloexopeptidase activity / metalloaminopeptidase activity / aminopeptidase activity / cytosolic ribosome / protein maturation / platelet aggregation / Inactivation, recovery and regulation of the phototransduction cascade / regulation of translation ...methionyl aminopeptidase / initiator methionyl aminopeptidase activity / metalloexopeptidase activity / metalloaminopeptidase activity / aminopeptidase activity / cytosolic ribosome / protein maturation / platelet aggregation / Inactivation, recovery and regulation of the phototransduction cascade / regulation of translation / proteolysis / zinc ion binding / cytoplasm / cytosol
Similarity search - Function
MYND-like zinc finger / zf-MYND-like zinc finger, mRNA-binding / Zinc finger C6H2-type profile. / 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 ...MYND-like zinc finger / zf-MYND-like zinc finger, mRNA-binding / Zinc finger C6H2-type profile. / 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
: / : / Methionine aminopeptidase 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.1 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 1.1Apr 29, 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 1.4Aug 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_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.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.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.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_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: Methionine aminopeptidase 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)37,4309
Polymers36,9361
Non-polymers4948
Water9,206511
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)47.29, 77.3, 48.34
Angle α, β, γ (deg.)90.00, 91.03, 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 / 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, 519 molecules

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


Mass: 58.933 Da / Num. of mol.: 4 / 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-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cl
#5: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C3H8O3
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 511 / 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: 8.2.2 / Wavelength: 0.977 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Jul 6, 2005 / 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: 1.1→20 Å / Num. all: 142947 / Num. obs: 142947 / % possible obs: 91.8 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3 % / Biso Wilson estimate: 12 Å2 / Rmerge(I) obs: 0.038 / Rsym value: 0.045 / Χ2: 1.002 / Net I/σ(I): 60.37
Reflection shellResolution: 1.1→1.12 Å / % possible obs: 72.7 % / Redundancy: 1.6 % / Rmerge(I) obs: 0.197 / Mean I/σ(I) obs: 4.7 / Num. measured obs: 9989 / Χ2: 1.081 / % possible all: 78.9

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Phasing

Phasing MRRfactor: 0.576 / Cor.coef. Fo:Fc: 0.678
Highest resolutionLowest resolution
Translation4.5 Å15 Å

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Processing

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

1yj3


Resolution: 1.1→20 Å / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.131 7151 -random
Rwork0.101 ---
all0.101 255244 --
obs0.0983 135769 91.6 %-
Displacement parametersBiso mean: 19.703 Å2
Refinement stepCycle: LAST / Resolution: 1.1→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2396 0 18 511 2925

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