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- PDB-1o8a: Crystal Structure of Human Angiotensin Converting Enzyme (Native). -

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Basic information

Entry
Database: PDB / ID: 1o8a
TitleCrystal Structure of Human Angiotensin Converting Enzyme (Native).
ComponentsANGIOTENSIN CONVERTING ENZYME
KeywordsMETALLOPROTEASE / ACE / PEPTIDYL DIPEPTIDASE / TYPE-I MEMBRANE-ANCHORED PROTEIN.
Function / homology
Function and homology information


mononuclear cell proliferation / cell proliferation in bone marrow / bradykinin receptor binding / exopeptidase activity / regulation of angiotensin metabolic process / substance P catabolic process / tripeptidyl-peptidase activity / peptidyl-dipeptidase A / regulation of renal output by angiotensin / negative regulation of gap junction assembly ...mononuclear cell proliferation / cell proliferation in bone marrow / bradykinin receptor binding / exopeptidase activity / regulation of angiotensin metabolic process / substance P catabolic process / tripeptidyl-peptidase activity / peptidyl-dipeptidase A / regulation of renal output by angiotensin / negative regulation of gap junction assembly / hormone catabolic process / bradykinin catabolic process / metallodipeptidase activity / regulation of smooth muscle cell migration / regulation of hematopoietic stem cell proliferation / neutrophil mediated immunity / hormone metabolic process / mitogen-activated protein kinase binding / mitogen-activated protein kinase kinase binding / chloride ion binding / arachidonate secretion / post-transcriptional regulation of gene expression / peptide catabolic process / heart contraction / antigen processing and presentation of peptide antigen via MHC class I / positive regulation of systemic arterial blood pressure / regulation of heart rate by cardiac conduction / regulation of systemic arterial blood pressure by renin-angiotensin / blood vessel remodeling / amyloid-beta metabolic process / hematopoietic stem cell differentiation / regulation of vasoconstriction / peptidyl-dipeptidase activity / Metabolism of Angiotensinogen to Angiotensins / angiotensin maturation / metallocarboxypeptidase activity / blood vessel diameter maintenance / angiotensin-activated signaling pathway / kidney development / regulation of synaptic plasticity / metalloendopeptidase activity / regulation of blood pressure / male gonad development / metallopeptidase activity / peptidase activity / actin binding / spermatogenesis / endopeptidase activity / calmodulin binding / lysosome / endosome / negative regulation of gene expression / external side of plasma membrane / proteolysis / extracellular space / extracellular exosome / extracellular region / zinc ion binding / plasma membrane
Similarity search - Function
Peptidase M2, peptidyl-dipeptidase A / Angiotensin-converting enzyme / Peptidase family M2 domain profile. / Neutral zinc metallopeptidases, zinc-binding region signature.
Similarity search - Domain/homology
ACETATE ION / N-CARBOXYALANINE / Angiotensin-converting enzyme / Angiotensin-converting enzyme
Similarity search - Component
Biological speciesHOMO SAPIENS (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2 Å
AuthorsNatesh, R. / Schwager, S.L.U. / Sturrock, E.D. / Acharya, K.R.
CitationJournal: Nature / Year: 2003
Title: Crystal structure of the human angiotensin-converting enzyme-lisinopril complex.
Authors: Natesh, R. / Schwager, S.L. / Sturrock, E.D. / Acharya, K.R.
History
DepositionNov 26, 2002Deposition site: PDBE / Processing site: PDBE
Revision 1.0Feb 7, 2003Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 2.0Jul 11, 2018Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Database references / Derived calculations / Non-polymer description / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / citation / citation_author / database_PDB_caveat / entity / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_struct_conn_angle / pdbx_validate_chiral / struct_asym / struct_conn
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.label_entity_id / _atom_site.type_symbol / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.type / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.title / _citation_author.name / _pdbx_nonpoly_scheme.entity_id / _pdbx_nonpoly_scheme.mon_id / _pdbx_nonpoly_scheme.pdb_mon_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _struct_asym.entity_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id
Revision 2.1Jul 29, 2020Group: Data collection / Derived calculations / Structure summary
Category: chem_comp / entity ...chem_comp / entity / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / pdbx_struct_conn_angle / struct_conn / struct_site / struct_site_gen
Item: _chem_comp.name / _chem_comp.type ..._chem_comp.name / _chem_comp.type / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _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.pdbx_leaving_atom_flag / _struct_conn.pdbx_role / _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
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.2Dec 13, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 2.3Oct 1, 2025Group: Advisory / Derived calculations / Structure summary
Category: pdbx_entry_details / pdbx_modification_feature ...pdbx_entry_details / pdbx_modification_feature / pdbx_validate_close_contact / struct_conn
Item: _pdbx_entry_details.has_protein_modification
Remark 650 HELIX DETERMINATION METHOD: AUTHOR PROVIDED.
Remark 700 SHEET DETERMINATION METHOD: AUTHOR PROVIDED.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: ANGIOTENSIN CONVERTING ENZYME
hetero molecules


Theoretical massNumber of molelcules
Total (without water)69,72512
Polymers68,0691
Non-polymers1,65611
Water9,080504
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
Unit cell
Length a, b, c (Å)56.620, 85.060, 133.790
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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Protein / Sugars , 2 types, 7 molecules A

#1: Protein ANGIOTENSIN CONVERTING ENZYME / ACE-T / DIPEPTIDYL CARBOXYPEPTIDASE I / KININASE II


Mass: 68068.922 Da / Num. of mol.: 1 / Fragment: RESIDUES 68-656
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Organ: TESTIS / Production host: CRICETULUS GRISEUS (Chinese hamster)
References: UniProt: P22966, UniProt: P12821*PLUS, peptidyl-dipeptidase A
#2: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Non-polymers , 5 types, 509 molecules

#3: Chemical ChemComp-ACT / ACETATE ION


Mass: 59.044 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H3O2
#4: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#5: Chemical ChemComp-NXA / N-CARBOXYALANINE


Mass: 133.103 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C4H7NO4
#6: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Cl
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 504 / Source method: isolated from a natural source / Formula: H2O

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Details

Compound detailsCONVERTS ANGIOTENSIN I TO ANGIOTENSIN II BY RELEASE OF THE TERMINAL HIS-LEU, THIS RESULTS IN AN ...CONVERTS ANGIOTENSIN I TO ANGIOTENSIN II BY RELEASE OF THE TERMINAL HIS-LEU, THIS RESULTS IN AN INCREASE OF THE VASOCONSTRICTOR ACTIVITY OF ANGIOTENSIN. ALSO ABLE TO INACTIVATE BRADYKININ, A POTENT VASODILATOR AND ACTS ON VARIOUS OTHER OLIGOPEPTIDES WITH FREE C-TERMINUS.
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: 2.4 Å3/Da / Density % sol: 49 %
Crystal growpH: 4.7 / Details: PEG4000/SODIUM ACETATE., pH 4.70
Crystal grow
*PLUS
Temperature: 16 ℃ / Method: vapor diffusion
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetailsChemical formula
110 mMHEPES1drop
20.1 %PMSF1drop
315 %PEG40001reservoir
450 mMsodium acetate trihydrate1reservoirpH4.7
510000 nM1reservoirZnSO4/7H2O

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SRS / Beamline: PX14.1 / Wavelength: 1.488
DetectorType: ADSC CCD / Detector: CCD / Date: Feb 25, 2002 / Details: MIRRORS
RadiationMonochromator: SI / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.488 Å / Relative weight: 1
ReflectionResolution: 2→50 Å / Num. obs: 42782 / % possible obs: 98.8 % / Redundancy: 7.1 % / Biso Wilson estimate: 23.9 Å2 / Rmerge(I) obs: 0.081 / Net I/σ(I): 22.46
Reflection shellResolution: 2→2.07 Å / Redundancy: 6.5 % / Rmerge(I) obs: 0.432 / Mean I/σ(I) obs: 4.44 / % possible all: 95.7
Reflection
*PLUS
Highest resolution: 2 Å
Reflection shell
*PLUS
Highest resolution: 2 Å / % possible obs: 95.7 %

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Processing

Software
NameVersionClassification
CNS1.1refinement
HKL-2000data reduction
SCALEPACKdata scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1O86

1o86


Resolution: 2→47.14 Å / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.22 1675 3.8 %RANDOM
Rwork0.18 ---
obs0.18 41402 93.1 %-
Displacement parametersBiso mean: 23.4 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.31 Å0.29 Å
Luzzati d res low-5 Å
Luzzati sigma a0.2 Å0.19 Å
Refinement stepCycle: LAST / Resolution: 2→47.14 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4660 0 100 504 5264
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.22
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d20.35
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.81
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it
X-RAY DIFFRACTIONc_mcangle_it
X-RAY DIFFRACTIONc_scbond_it
X-RAY DIFFRACTIONc_scangle_it
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2WATER_REP.PARAMWATER.TOP
X-RAY DIFFRACTION3ION.PARAMION.TOP
Refinement
*PLUS
Rfactor Rfree: 0.2208 / Rfactor Rwork: 0.1829
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.005
X-RAY DIFFRACTIONc_angle_deg1.2
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg20.35
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg0.81

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