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- PDB-1za1: Structure of wild-type E. coli Aspartate Transcarbamoylase in the... -

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Basic information

Entry
Database: PDB / ID: 1za1
TitleStructure of wild-type E. coli Aspartate Transcarbamoylase in the presence of CTP at 2.20 A resolution
Components
  • Aspartate carbamoyltransferase catalytic chain
  • Aspartate carbamoyltransferase regulatory chain
KeywordsTRANSFERASE / ordered substrate binding / cooperativity
Function / homology
Function and homology information


aspartate carbamoyltransferase complex / pyrimidine nucleotide biosynthetic process / aspartate carbamoyltransferase / aspartate carbamoyltransferase activity / glutamine metabolic process / amino acid metabolic process / amino acid binding / protein homotrimerization / 'de novo' UMP biosynthetic process / 'de novo' pyrimidine nucleobase biosynthetic process ...aspartate carbamoyltransferase complex / pyrimidine nucleotide biosynthetic process / aspartate carbamoyltransferase / aspartate carbamoyltransferase activity / glutamine metabolic process / amino acid metabolic process / amino acid binding / protein homotrimerization / 'de novo' UMP biosynthetic process / 'de novo' pyrimidine nucleobase biosynthetic process / zinc ion binding / metal ion binding / identical protein binding / cytoplasm / cytosol
Similarity search - Function
Aspartate transcarbamylase regulatory subunit / Aspartate carbamoyltransferase regulatory subunit, C-terminal / Aspartate carbamoyltransferase regulatory subunit, N-terminal / Aspartate carbamoyltransferase regulatory subunit, C-terminal domain superfamily / Aspartate carbamoyltransferase regulatory subunit, N-terminal domain superfamily / Aspartate carbamoyltransferase regulatory chain, allosteric domain / Aspartate carbamoyltransferase regulatory chain, metal binding domain / Aspartate carbamoyltransferase regulatory subunit, N-terminal domain / Aspartate carbamoyltransferase regulatory subunit, C-terminal domain / Aspartate carbamoyltransferase ...Aspartate transcarbamylase regulatory subunit / Aspartate carbamoyltransferase regulatory subunit, C-terminal / Aspartate carbamoyltransferase regulatory subunit, N-terminal / Aspartate carbamoyltransferase regulatory subunit, C-terminal domain superfamily / Aspartate carbamoyltransferase regulatory subunit, N-terminal domain superfamily / Aspartate carbamoyltransferase regulatory chain, allosteric domain / Aspartate carbamoyltransferase regulatory chain, metal binding domain / Aspartate carbamoyltransferase regulatory subunit, N-terminal domain / Aspartate carbamoyltransferase regulatory subunit, C-terminal domain / Aspartate carbamoyltransferase / Aspartate/ornithine carbamoyltransferase / Aspartate and ornithine carbamoyltransferases signature. / Aspartate/ornithine carbamoyltransferase / Aspartate/ornithine carbamoyltransferase, Asp/Orn-binding domain / Aspartate/ornithine carbamoyltransferase, carbamoyl-P binding / Aspartate/ornithine carbamoyltransferase superfamily / Aspartate/ornithine carbamoyltransferase, Asp/Orn binding domain / Aspartate/ornithine carbamoyltransferase, carbamoyl-P binding domain / SH3 type barrels. / Roll / Alpha-Beta Plaits / Rossmann fold / 2-Layer Sandwich / 3-Layer(aba) Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
CYTIDINE-5'-TRIPHOSPHATE / Aspartate carbamoyltransferase regulatory chain / Aspartate carbamoyltransferase catalytic subunit / Aspartate carbamoyltransferase catalytic subunit / Aspartate carbamoyltransferase regulatory chain
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.2 Å
AuthorsWang, J. / Stieglitz, K.A. / Cardia, J.P. / Kantrowitz, E.R.
CitationJournal: Proc.Natl.Acad.Sci.Usa / Year: 2005
Title: Structural basis for ordered substrate binding and cooperativity in aspartate transcarbamoylase
Authors: Wang, J. / Stieglitz, K.A. / Cardia, J.P. / Kantrowitz, E.R.
History
DepositionApr 5, 2005Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 7, 2005Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Oct 11, 2017Group: Refinement description / Category: software
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 / 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 / _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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Aspartate carbamoyltransferase catalytic chain
B: Aspartate carbamoyltransferase regulatory chain
C: Aspartate carbamoyltransferase catalytic chain
D: Aspartate carbamoyltransferase regulatory chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)104,0598
Polymers102,9614
Non-polymers1,0974
Water10,863603
1
A: Aspartate carbamoyltransferase catalytic chain
B: Aspartate carbamoyltransferase regulatory chain
C: Aspartate carbamoyltransferase catalytic chain
D: Aspartate carbamoyltransferase regulatory chain
hetero molecules

A: Aspartate carbamoyltransferase catalytic chain
B: Aspartate carbamoyltransferase regulatory chain
C: Aspartate carbamoyltransferase catalytic chain
D: Aspartate carbamoyltransferase regulatory chain
hetero molecules

A: Aspartate carbamoyltransferase catalytic chain
B: Aspartate carbamoyltransferase regulatory chain
C: Aspartate carbamoyltransferase catalytic chain
D: Aspartate carbamoyltransferase regulatory chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)312,17624
Polymers308,88412
Non-polymers3,29112
Water21612
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_655-y+1,x-y,z1
crystal symmetry operation3_665-x+y+1,-x+1,z1
Buried area34900 Å2
ΔGint-93 kcal/mol
Surface area103040 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)120.294, 120.294, 142.555
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number150
Space group name H-MP321

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Components

#1: Protein Aspartate carbamoyltransferase catalytic chain / Aspartate transcarbamylase / ATCase


Mass: 34337.105 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: PYRB / Plasmid: pEK54 / Production host: Escherichia coli (E. coli) / Strain (production host): EK1104
References: UniProt: P00479, UniProt: P0A786*PLUS, aspartate carbamoyltransferase
#2: Protein Aspartate carbamoyltransferase regulatory chain


Mass: 17143.625 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: PYRI / Plasmid: pEK54 / Production host: Escherichia coli (E. coli) / Strain (production host): EK1104
References: UniProt: P00478, UniProt: P0A7F3*PLUS, aspartate carbamoyltransferase
#3: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#4: Chemical ChemComp-CTP / CYTIDINE-5'-TRIPHOSPHATE


Mass: 483.156 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C9H16N3O14P3
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 603 / 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: 2.7 Å3/Da / Density % sol: 54.11 %
Crystal growTemperature: 293 K / Method: microdialysis / pH: 5.7
Details: 40 mM Citric acid, 3 mM sodium azide, 1mM 2-mercaptoethanol, 1mM CTP, 0.2mM EDTA, pH 5.7, MICRODIALYSIS, temperature 293K

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Data collection

DiffractionMean temperature: 93 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418 / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: May 31, 2004
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2→30 Å / Num. all: 80778 / Num. obs: 80374 / % possible obs: 99.5 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 5.35 % / Rmerge(I) obs: 0.063 / Net I/σ(I): 14.7
Reflection shellResolution: 2→2.07 Å / Redundancy: 5.23 % / Rmerge(I) obs: 0.444 / Mean I/σ(I) obs: 3.8 / % possible all: 99

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Processing

Software
NameClassification
CNSrefinement
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1NBE

1nbe


Resolution: 2.2→30 Å / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflectionSelection details
Rfree0.252 7475 Random
Rwork0.205 --
all0.205 75126 -
obs0.205 74750 -
Refinement stepCycle: LAST / Resolution: 2.2→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms7215 0 60 603 7878

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