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- PDB-1mns: ON THE ROLE OF LYSINE 166 IN THE MECHANISM OF MANDELATE RACEMASE ... -

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Entry
Database: PDB / ID: 1mns
TitleON THE ROLE OF LYSINE 166 IN THE MECHANISM OF MANDELATE RACEMASE FROM PSEUDOMONAS PUTIDA: MECHANISTIC AND CRYSTALLOGRAPHIC EVIDENCE FOR STEREOSPECIFIC ALKYLATION BY (R)-ALPHA-PHENYLGLYCIDATE
ComponentsMANDELATE RACEMASE
KeywordsRACEMASE
Function / homology
Function and homology information


mandelate racemase / mandelate racemase activity / mandelate catabolic process / amino acid catabolic process / hydro-lyase activity / carbohydrate catabolic process / magnesium ion binding
Similarity search - Function
Mandelate racemase / Mandelate racemase / muconate lactonizing enzyme family signature 2. / : / Mandelate racemase / muconate lactonizing enzyme family signature 1. / Mandelate racemase/muconate lactonizing enzyme, conserved site / Mandelate racemase/muconate lactonizing enzyme, N-terminal domain / Mandelate racemase / muconate lactonizing enzyme, N-terminal domain / Mandelate racemase/muconate lactonizing enzyme, C-terminal / Mandelate racemase / muconate lactonizing enzyme, C-terminal domain / Enolase C-terminal domain-like ...Mandelate racemase / Mandelate racemase / muconate lactonizing enzyme family signature 2. / : / Mandelate racemase / muconate lactonizing enzyme family signature 1. / Mandelate racemase/muconate lactonizing enzyme, conserved site / Mandelate racemase/muconate lactonizing enzyme, N-terminal domain / Mandelate racemase / muconate lactonizing enzyme, N-terminal domain / Mandelate racemase/muconate lactonizing enzyme, C-terminal / Mandelate racemase / muconate lactonizing enzyme, C-terminal domain / Enolase C-terminal domain-like / Enolase C-terminal domain-like / Enolase-like C-terminal domain / Enolase-like, N-terminal domain / Enolase-like, N-terminal / Enolase-like, C-terminal domain superfamily / Enolase-like; domain 1 / TIM Barrel / Alpha-Beta Barrel / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
ATROLACTIC ACID (2-PHENYL-LACTIC ACID) / Mandelate racemase
Similarity search - Component
Biological speciesPseudomonas putida (bacteria)
MethodX-RAY DIFFRACTION / Resolution: 2 Å
AuthorsNeidhart, D.J. / Landro, J.A. / Kozarich, J.W.
Citation
Journal: Biochemistry / Year: 1994
Title: The role of lysine 166 in the mechanism of mandelate racemase from Pseudomonas putida: mechanistic and crystallographic evidence for stereospecific alkylation by (R)-alpha-phenylglycidate.
Authors: Landro, J.A. / Gerlt, J.A. / Kozarich, J.W. / Koo, C.W. / Shah, V.J. / Kenyon, G.L. / Neidhart, D.J. / Fujita, S. / Petsko, G.A.
#1: Journal: Biochemistry / Year: 1991
Title: Mechanism of the Reaction Catalyzed by Mandelate Racemase 2. Crystal Structure of Mandelate Racemase at 2.5 Angstroms Resolution: Identification of the Active Site and Possible Catalytic Residues
Authors: Neidhart, D.J. / Howell, P.L. / Petsko, G.A. / Powers, V.M. / Li, R. / Kenyon, G.L. / Gerlt, J.A.
#2: Journal: Nature / Year: 1990
Title: Mandelate Racemase and Muconate Lactonizing Enzyme are Mechanistically Distinct and Structurally Homologous
Authors: Neidhart, D.J. / Kenyon, G.L. / Gerlt, J.A. / Petsko, G.A.
#3: Journal: To be Published
Title: Refined High-Resolution X-Ray Structures of Mandelate Racemase in Complex with Catalytically Active Metal Ions
Authors: Neidhart, D.J.
History
DepositionJul 6, 1993Processing site: BNL
Revision 1.0Oct 31, 1993Provider: repository / Type: Initial release
Revision 1.1Mar 3, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 2.0Jun 5, 2024Group: Atomic model / Data collection ...Atomic model / Data collection / Database references / Derived calculations / Other
Category: atom_site / chem_comp_atom ...atom_site / chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_struct_conn_angle / struct_conn / struct_site
Item: _atom_site.occupancy / _database_2.pdbx_DOI ..._atom_site.occupancy / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.process_site / _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.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
Revision 2.1Oct 30, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification
Remark 700SHEET BETA SHEETS ARE NAMED FOR THE MAJOR DOMAINS IN WHICH THEY OCCUR: "N" FOR N-TERMINAL DOMAIN, ...SHEET BETA SHEETS ARE NAMED FOR THE MAJOR DOMAINS IN WHICH THEY OCCUR: "N" FOR N-TERMINAL DOMAIN, "B" FOR BETA-BARREL DOMAIN, AND "C" FOR C-TERMINAL DOMAIN. "F" REFERS TO THE ACTIVE SITE FLAP. LIKEWISE, ALPHA HELICES ARE NAMED WITH TWO CHARACTERS, THE FIRST REFERRING TO THE DOMAIN IN WHICH THEY OCCUR.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: MANDELATE RACEMASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)38,5753
Polymers38,3841
Non-polymers1902
Water3,765209
1
A: MANDELATE RACEMASE
hetero molecules
x 8


Theoretical massNumber of molelcules
Total (without water)308,59824
Polymers307,0758
Non-polymers1,52416
Water1448
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_555-x,-y,z1
crystal symmetry operation3_555-y,x,z1
crystal symmetry operation4_555y,-x,z1
crystal symmetry operation5_555-x,y,-z1
crystal symmetry operation6_555x,-y,-z1
crystal symmetry operation7_555y,x,-z1
crystal symmetry operation8_555-y,-x,-z1
Buried area30530 Å2
ΔGint-217 kcal/mol
Surface area83860 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)125.000, 125.000, 105.600
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number97
Space group name H-MI422
Components on special symmetry positions
IDModelComponents
11A-597-

HOH

21A-598-

HOH

31A-612-

HOH

41A-614-

HOH

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Components

#1: Protein MANDELATE RACEMASE


Mass: 38384.324 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pseudomonas putida (bacteria) / References: UniProt: P11444, mandelate racemase
#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-APG / ATROLACTIC ACID (2-PHENYL-LACTIC ACID)


Mass: 166.174 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C9H10O3
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 209 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY
Nonpolymer detailsMANDELATE RACEMASE IS MOST ACTIVE WITH A MAGNESIUM (II) ION BOUND IN THE ACTIVE SITE. IN THIS ...MANDELATE RACEMASE IS MOST ACTIVE WITH A MAGNESIUM (II) ION BOUND IN THE ACTIVE SITE. IN THIS CRYSTAL STRUCTURE OF MANDELATE RACEMASE INACTIVATED WITH R-ALPHA PHENYL GLYCIDATE, THE INACTIVATION AND CRYSTALLIZATION WERE PERFORMED IN THE PRESENCE OF AN EXCESS OF MAGNESIUM (II) ION. THIS IS IN CONTRAST TO THE REPORTED NATIVE STRUCTURE (PROTEIN DATA BANK ENTRY 2MNR) IN WHICH THE ACTIVE SITE IS OCCUPIED BY A MANGANESE (II) ION.

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.69 Å3/Da / Density % sol: 54.19 %
Crystal grow
*PLUS
pH: 8 / Method: vapor diffusion, hanging drop
Details: taken from Neidhart, D.J. et al (1991). Biochemistry, 30, 9264-9273.
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
13 mg/mlenzyme1drop
250 mMTris-HCl1drop
310 mM1dropMgCl2
40.01 %1dropNaN3
530 %satammonium sulfate1reservoir

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Data collection

RadiationScattering type: x-ray
Radiation wavelengthRelative weight: 1
Reflection
*PLUS
Highest resolution: 2 Å / % possible obs: 83 % / Observed criterion σ(I): 1 / Redundancy: 2.6 % / Num. measured all: 62094 / Rmerge(I) obs: 0.075

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Processing

Software
NameClassification
X-PLORmodel building
X-PLORrefinement
X-PLORphasing
RefinementRfactor Rwork: 0.153 / Rfactor obs: 0.153 / Highest resolution: 2 Å
Refinement stepCycle: LAST / Highest resolution: 2 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2698 0 13 209 2920
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.015
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg2.6
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Software
*PLUS
Name: X-PLOR / Classification: refinement
Refinement
*PLUS
Highest resolution: 2 Å / Lowest resolution: 6 Å / Num. reflection obs: 22159 / σ(I): 1
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_angle_d2.6
X-RAY DIFFRACTIONx_dihedral_angle_d23.4
X-RAY DIFFRACTIONx_dihedral_angle_deg1.2

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