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- PDB-4d8t: Crystal structure of D-Cysteine desulfhydrase from Salmonella typ... -

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Basic information

Entry
Database: PDB / ID: 4d8t
TitleCrystal structure of D-Cysteine desulfhydrase from Salmonella typhimurium at 2.2 A resolution
ComponentsD-cysteine desulfhydrase
KeywordsLYASE / Fold type II PLP-dependent enzyme / Tryptophan synthase beta subunit-like PLP-dependent enzymes superfamily
Function / homology
Function and homology information


D-cysteine desulfhydrase / D-amino acid metabolic process / D-cysteine desulfhydrase activity
Similarity search - Function
D-cysteine desulphhydrase, bacterial / D-cysteine desulfhydrase / 1-aminocyclopropane-1-carboxylate deaminase/D-cysteine desulfhydrase / Rossmann fold - #1100 / Pyridoxal-phosphate dependent enzyme / Pyridoxal-phosphate dependent enzyme / Tryptophan synthase beta subunit-like PLP-dependent enzyme / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
BENZAMIDINE / D-cysteine desulfhydrase
Similarity search - Component
Biological speciesSalmonella typhimurium (bacteria)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.28 Å
AuthorsBharath, S.R. / Shveta, B. / Rajesh, K.H. / Savithri, H.S. / Murthy, M.R.N.
CitationJournal: Plos One / Year: 2012
Title: Structural and Mutational Studies on Substrate Specificity and Catalysis of Salmonella typhimurium D-Cysteine Desulfhydrase.
Authors: Bharath, S.R. / Bisht, S. / Harijan, R.K. / Savithri, H.S. / Murthy, M.R.N.
History
DepositionJan 11, 2012Deposition site: RCSB / Processing site: PDBJ
Revision 1.0May 30, 2012Provider: repository / Type: Initial release
Revision 1.1May 10, 2017Group: Structure summary
Revision 1.2Nov 8, 2023Group: Advisory / Data collection ...Advisory / 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_unobs_or_zero_occ_atoms / 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.pdbx_leaving_atom_flag / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.3Dec 6, 2023Group: Data collection / Category: chem_comp_atom / chem_comp_bond / Item: _chem_comp_atom.atom_id / _chem_comp_bond.atom_id_2

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: D-cysteine desulfhydrase
B: D-cysteine desulfhydrase
C: D-cysteine desulfhydrase
D: D-cysteine desulfhydrase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)148,13614
Polymers147,1154
Non-polymers1,02010
Water8,107450
1
A: D-cysteine desulfhydrase
B: D-cysteine desulfhydrase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)74,1468
Polymers73,5582
Non-polymers5886
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4150 Å2
ΔGint-53 kcal/mol
Surface area22960 Å2
MethodPISA
2
C: D-cysteine desulfhydrase
D: D-cysteine desulfhydrase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)73,9906
Polymers73,5582
Non-polymers4324
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4060 Å2
ΔGint-61 kcal/mol
Surface area23210 Å2
MethodPISA
Unit cell
Length a, b, c (Å)66.483, 165.450, 69.208
Angle α, β, γ (deg.)90.00, 119.01, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein
D-cysteine desulfhydrase


Mass: 36778.844 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Salmonella typhimurium (bacteria) / Gene: dcyD, STM1953 / Plasmid: pRSET C / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 (DE3) Rosetta / References: UniProt: Q8ZNT7, D-cysteine desulfhydrase
#2: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: SO4
#3: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cl
#4: Chemical
ChemComp-BEN / BENZAMIDINE


Mass: 120.152 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C7H8N2
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 450 / 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: 2.26 Å3/Da / Density % sol: 45.64 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 8.6
Details: 1.5M Ammonium sulphate, 15% (v/v) ethylene glycol, 0.1M HEPES, 0.2% Benzamidine, pH 8.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU MICROMAX-007 HF / Wavelength: 1.5418 Å
DetectorType: MAR scanner 345 mm plate / Detector: IMAGE PLATE / Date: Nov 16, 2009 / Details: mirrors
RadiationMonochromator: Ni mirror / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.21→60.45 Å / Num. obs: 63892 / % possible obs: 98.4 % / Redundancy: 3.3 % / Biso Wilson estimate: 23.53 Å2 / Rmerge(I) obs: 0.069 / Net I/σ(I): 11.8
Reflection shellResolution: 2.21→2.33 Å / Redundancy: 3.1 % / Rmerge(I) obs: 0.201 / Mean I/σ(I) obs: 5.1 / Num. unique all: 8500 / % possible all: 90

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Processing

Software
NameVersionClassification
MAR345dtbdata collection
PHASERphasing
REFMAC5.6.0117refinement
MOSFLMdata reduction
SCALAdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1J0B

1j0b


Resolution: 2.28→29.19 Å / Cor.coef. Fo:Fc: 0.948 / Cor.coef. Fo:Fc free: 0.914 / SU B: 6.618 / SU ML: 0.162 / Cross valid method: THROUGHOUT / ESU R: 0.381 / ESU R Free: 0.245 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN USED IF PRESENT IN THE INPUT
RfactorNum. reflection% reflectionSelection details
Rfree0.24182 2926 5.1 %RANDOM
Rwork0.18869 ---
obs0.19137 54711 97.59 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 33.526 Å2
Baniso -1Baniso -2Baniso -3
1--0.01 Å20 Å2-0.02 Å2
2--0 Å20 Å2
3----0.01 Å2
Refinement stepCycle: LAST / Resolution: 2.28→29.19 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms9678 0 66 450 10194
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0060.029969
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.1711.99513606
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.53651306
X-RAY DIFFRACTIONr_dihedral_angle_2_deg38.35524.583384
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.892151529
X-RAY DIFFRACTIONr_dihedral_angle_4_deg15.6381546
X-RAY DIFFRACTIONr_chiral_restr0.0760.21598
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.0217517
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it
X-RAY DIFFRACTIONr_scbond_it
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.285→2.344 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.282 191 -
Rwork0.245 3638 -
obs--90.24 %

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