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- PDB-1lwn: Crystal structure of rabbit muscle glycogen phosphorylase a in co... -

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Basic information

Entry
Database: PDB / ID: 1lwn
TitleCrystal structure of rabbit muscle glycogen phosphorylase a in complex with a potential hypoglycaemic drug at 2.0 A resolution
Componentsglycogen phosphorylase
KeywordsTRANSFERASE / type 2 diabetes / glycogen phosphorylase / inhibitor / new allosteric site
Function / homology
Function and homology information


glycogen phosphorylase / glycogen phosphorylase activity / linear malto-oligosaccharide phosphorylase activity / SHG alpha-glucan phosphorylase activity / glycogen catabolic process / skeletal muscle myofibril / pyridoxal phosphate binding / nucleotide binding
Similarity search - Function
Glycosyl transferase, family 35 / Glycogen/starch/alpha-glucan phosphorylase / Phosphorylase pyridoxal-phosphate attachment site / Carbohydrate phosphorylase / Phosphorylase pyridoxal-phosphate attachment site. / Glycogen Phosphorylase B; / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
alpha-D-glucopyranose / PYRIDOXAL-5'-PHOSPHATE / Glycogen phosphorylase, muscle form
Similarity search - Component
Biological speciesOryctolagus cuniculus (rabbit)
MethodX-RAY DIFFRACTION / SYNCHROTRON / FOURIER SYNTHESIS / Resolution: 2 Å
AuthorsOikonomakos, N.G. / Chrysina, E.D. / Kosmopoulou, M. / Leonidas, D.D.
Citation
Journal: BIOCHEM.BIOPHYS.ACTA PROTEINS & PROTEOMICS / Year: 2003
Title: Crystal structure of rabbit muscle glycogen phosphorylase a in complex with a potential hypoglycaemic drug at 2.0 A resolution
Authors: Oikonomakos, N.G. / Chrysina, E.D. / Kosmopoulou, M.N. / Leonidas, D.D.
#1: Journal: BIOORG.MED.CHEM. / Year: 2002
Title: The 1.76 A Resolution Crystal Structure of Glycogen Phosphorylase b Complexed with Glucose, and CP320626, a Potential Antidiabetic Drug
Authors: Oikonomakos, N.G. / Zographos, S.E. / Skamnaki, V.T. / Archontis, G.
History
DepositionJun 1, 2002Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Jun 19, 2002Provider: repository / Type: Initial release
Revision 1.1Apr 28, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Jul 29, 2020Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Structure summary
Category: chem_comp / diffrn_source ...chem_comp / diffrn_source / entity / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / struct_conn / struct_ref_seq_dif / struct_site / struct_site_gen
Item: _chem_comp.name / _chem_comp.type ..._chem_comp.name / _chem_comp.type / _diffrn_source.pdbx_synchrotron_site / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _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_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
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 1.4Apr 3, 2024Group: 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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: glycogen phosphorylase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)97,7983
Polymers97,3711
Non-polymers4272
Water5,891327
1
A: glycogen phosphorylase
hetero molecules

A: glycogen phosphorylase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)195,5976
Polymers194,7422
Non-polymers8554
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation7_556y,x,-z+11
Buried area8490 Å2
ΔGint-23 kcal/mol
Surface area58380 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)128.283, 128.283, 116.881
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number96
Space group name H-MP43212

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Components

#1: Protein glycogen phosphorylase / / Myophosphorylase


Mass: 97371.180 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Oryctolagus cuniculus (rabbit) / Tissue: muscleSkeletal muscle / References: UniProt: P00489, glycogen phosphorylase
#2: Sugar ChemComp-GLC / alpha-D-glucopyranose / alpha-D-glucose / D-glucose / glucose / Glucose


Type: D-saccharide, alpha linking / Mass: 180.156 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Formula: C6H12O6
IdentifierTypeProgram
DGlcpaCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
a-D-glucopyranoseCOMMON NAMEGMML 1.0
a-D-GlcpIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#3: Chemical ChemComp-PLP / PYRIDOXAL-5'-PHOSPHATE / VITAMIN B6 Phosphate / Pyridoxal phosphate


Mass: 247.142 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C8H10NO6P
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 327 / 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: 2.47 Å3/Da / Density % sol: 50.17 %
Crystal growTemperature: 295 K / Method: small tubes / pH: 6.7 / Details: BES, EDTA, pH 6.7, SMALL TUBES, temperature 295K
Crystal grow
*PLUS
Details: Oikonomakos, N.G., (1999) Protein Sci., 8, 1930.

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Data collection

DiffractionMean temperature: 298 K
Diffraction sourceSource: SYNCHROTRON / Site: EMBL/DESY, HAMBURG / Beamline: X11 / Wavelength: 0.9058 Å
DetectorDetector: IMAGE PLATE / Date: Jun 6, 1998
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9058 Å / Relative weight: 1
ReflectionResolution: 2→15 Å / Num. obs: 69010 / % possible obs: 99.3 % / Observed criterion σ(F): 0 / Observed criterion σ(I): -3 / Redundancy: 5.9 % / Biso Wilson estimate: 18.9 Å2 / Rmerge(I) obs: 0.067 / Net I/σ(I): 16.7
Reflection shellResolution: 2→2.03 Å / Redundancy: 5.8 % / Rmerge(I) obs: 0.49 / Mean I/σ(I) obs: 4.1 / Num. unique all: 3229 / % possible all: 99.2
Reflection
*PLUS
Num. obs: 65781 / Num. measured all: 453933
Reflection shell
*PLUS
Highest resolution: 2 Å / % possible obs: 99.2 % / Num. unique obs: 3229 / Rmerge(I) obs: 0.49

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Processing

Software
NameVersionClassification
DENZOdata reduction
SCALEPACKdata scaling
X-PLORmodel building
X-PLOR3.851refinement
X-PLORphasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: glycogen phosphorylase a room temperature model provided by Prof. R.J.Fletterick

Resolution: 2→14.81 Å / Rfactor Rfree error: 0.004 / Data cutoff high absF: 10000000 / Data cutoff low absF: 0.001 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.218 3336 5.1 %RANDOM
Rwork0.179 ---
obs0.179 65741 99.3 %-
Displacement parametersBiso mean: 31.5 Å2
Baniso -1Baniso -2Baniso -3
1-0 Å20 Å20 Å2
2--0 Å20 Å2
3---0 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.24 Å0.21 Å
Luzzati d res low-5 Å
Luzzati sigma a0.23 Å0.22 Å
Refinement stepCycle: LAST / Resolution: 2→14.81 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6635 0 27 327 6989
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONx_bond_d0.007
X-RAY DIFFRACTIONx_angle_deg1.3
X-RAY DIFFRACTIONx_dihedral_angle_d24.3
X-RAY DIFFRACTIONx_improper_angle_d0.68
X-RAY DIFFRACTIONx_mcbond_it1.851.5
X-RAY DIFFRACTIONx_mcangle_it2.952
X-RAY DIFFRACTIONx_scbond_it3.592
X-RAY DIFFRACTIONx_scangle_it5.732.5
LS refinement shellResolution: 2→2.12 Å / Rfactor Rfree error: 0.012 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.285 566 5.3 %
Rwork0.253 10137 -
obs--98.3 %
Refinement
*PLUS
Highest resolution: 2 Å / Lowest resolution: 14.8 Å
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_angle_deg1.31
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_deg24.3
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_deg0.68
LS refinement shell
*PLUS
Rfactor Rfree: 0.297 / Rfactor Rwork: 0.254 / Rfactor obs: 0.254

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