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- PDB-1pig: PIG PANCREATIC ALPHA-AMYLASE COMPLEXED WITH THE OLIGOSACCHARIDE V-1532 -

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Basic information

Entry
Database: PDB / ID: 1pig
TitlePIG PANCREATIC ALPHA-AMYLASE COMPLEXED WITH THE OLIGOSACCHARIDE V-1532
ComponentsALPHA-AMYLASE
KeywordsGLYCOSYLTRANSFERASE / ALPHA-AMYLASE ALPHA-1 / 4-GLUCAN-4-GLUCANOHYDROLASE GLYCOSYLTRANSFERASE
Function / homology
Function and homology information


alpha-amylase / alpha-amylase activity / carbohydrate catabolic process / chloride ion binding / carbohydrate metabolic process / calcium ion binding / extracellular space
Similarity search - Function
Alpha-amylase, C-terminal domain / Aamy_C / Alpha-amylase/branching enzyme, C-terminal all beta / Alpha amylase, C-terminal all-beta domain / Alpha amylase / Alpha amylase, catalytic domain / Glycosyl hydrolase, family 13, catalytic domain / Alpha-amylase domain / Golgi alpha-mannosidase II / Glycosyl hydrolase, all-beta ...Alpha-amylase, C-terminal domain / Aamy_C / Alpha-amylase/branching enzyme, C-terminal all beta / Alpha amylase, C-terminal all-beta domain / Alpha amylase / Alpha amylase, catalytic domain / Glycosyl hydrolase, family 13, catalytic domain / Alpha-amylase domain / Golgi alpha-mannosidase II / Glycosyl hydrolase, all-beta / Glycosidases / Glycoside hydrolase superfamily / TIM Barrel / Alpha-Beta Barrel / Immunoglobulin-like / Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
alpha-maltose / alpha-cellobiose / beta-D-glucopyranose / 5-HYDROXYMETHYL-CHONDURITOL / Pancreatic alpha-amylase
Similarity search - Component
Biological speciesSus scrofa (pig)
MethodX-RAY DIFFRACTION / DIFFERENCE FOURIER / Resolution: 2.2 Å
AuthorsMachius, M. / Vertesy, L. / Huber, R. / Wiegand, G.
Citation
Journal: J.Mol.Biol. / Year: 1996
Title: Carbohydrate and protein-based inhibitors of porcine pancreatic alpha-amylase: structure analysis and comparison of their binding characteristics.
Authors: Machius, M. / Vertesy, L. / Huber, R. / Wiegand, G.
#1: Journal: J.Mol.Biol. / Year: 1995
Title: The Crystal Structure of Porcine Pancreatic Alpha-Amylase in Complex with the Microbial Inhibitor Tendamistat
Authors: Wiegand, G. / Epp, O. / Huber, R.
#2: Journal: Protein Sci. / Year: 1995
Title: Carbohydrate Binding Sites in a Pancreatic Alpha-Amylase-Substrate Complex, Derived from X-Ray Structure Analysis at 2.1 Angstrom Resolution
Authors: Qian, M. / Haser, R. / Payan, F.
#3: Journal: J.Mol.Biol. / Year: 1994
Title: Refined Molecular Structure of Pig Pancreatic Alpha-Amylase at 2.1 A Resolution
Authors: Larson, S.B. / Greenwood, A. / Cascio, D. / Day, J. / McPherson, A.
#4: Journal: Biochemistry / Year: 1994
Title: The Active Center of a Mammalian Alpha-Amylase. Structure of the Complex of a Pancreatic Alpha-Amylase with a Carbohydrate Inhibitor Refined to 2.2-A Resolution
Authors: Qian, M. / Haser, R. / Buisson, G. / Duee, E. / Payan, F.
#5: Journal: J.Mol.Biol. / Year: 1993
Title: Structure and Molecular Model Refinement of Pig Pancreatic Alpha-Amylase at 2.1 A Resolution
Authors: Qian, M. / Haser, R. / Payan, F.
History
DepositionJun 15, 1996Processing site: BNL
Revision 1.0Dec 7, 1996Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Nov 20, 2019Group: Advisory / Data collection ...Advisory / Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp / pdbx_struct_conn_angle ...chem_comp / pdbx_struct_conn_angle / pdbx_unobs_or_zero_occ_atoms / software / struct_conn / struct_ref_seq_dif
Item: _chem_comp.type / _software.name / _struct_ref_seq_dif.details
Revision 2.0Dec 25, 2019Group: Derived calculations / Polymer sequence / Category: entity_poly / pdbx_struct_mod_residue
Item: _entity_poly.pdbx_seq_one_letter_code_can / _pdbx_struct_mod_residue.parent_comp_id
Revision 3.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / entity_name_com / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_molecule_features / pdbx_nonpoly_scheme / pdbx_struct_assembly_gen / pdbx_struct_conn_angle / struct_asym / struct_conn / struct_site / struct_site_gen
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_asym_id / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.label_entity_id / _atom_site.type_symbol / _chem_comp.name / _chem_comp.type / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.value / _struct_conn.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_auth_asym_id / _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_asym_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
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 3.1Aug 9, 2023Group: Advisory / Database references ...Advisory / Database references / Derived calculations / Refinement description / Structure summary
Category: chem_comp / database_2 ...chem_comp / database_2 / pdbx_initial_refinement_model / pdbx_unobs_or_zero_occ_atoms / struct_conn
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ..._chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_leaving_atom_flag
Revision 3.2Nov 13, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / pdbx_entry_details / pdbx_modification_feature
Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: ALPHA-AMYLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)57,3039
Polymers55,3741
Non-polymers1,9298
Water4,107228
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)70.500, 114.800, 118.700
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 , 1 types, 1 molecules A

#1: Protein ALPHA-AMYLASE / ALPHA-1 / 4-GLUCAN-4-GLUCANOHYDROLASE


Mass: 55373.680 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / Organ: PANCREAS / References: UniProt: P00690, alpha-amylase

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Sugars , 5 types, 5 molecules

#2: Polysaccharide 4-amino-4,6-dideoxy-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose


Type: oligosaccharide / Mass: 325.313 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DQuip[4N]a1-4DGlcpa1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/2,2,1/[a2122h-1a_1-5][a2122m-1a_1-5_4*N]/1-2/a4-b1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-Glcp]{[(4+1)][a-D-6-deoxy-Glcp4N]{}}LINUCSPDB-CARE
#3: Polysaccharide 4-amino-4,6-dideoxy-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-beta-D-glucopyranose


Type: oligosaccharide / Mass: 487.454 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DQuip[4N]a1-4DGlcpa1-4DGlcpb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/3,3,2/[a2122h-1b_1-5][a2122h-1a_1-5][a2122m-1a_1-5_4*N]/1-2-3/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[][b-D-Glcp]{[(4+1)][a-D-Glcp]{[(4+1)][a-D-6-deoxy-Glcp4N]{}}}LINUCSPDB-CARE
#4: Polysaccharide alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose / alpha-maltose


Type: oligosaccharide, Oligosaccharide / Class: Nutrient / Mass: 342.297 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: oligosaccharide / References: alpha-maltose
DescriptorTypeProgram
DGlcpa1-4DGlcpa1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1a_1-5]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][a-D-Glcp]{[(4+1)][a-D-Glcp]{}}LINUCSPDB-CARE
#5: Polysaccharide beta-D-glucopyranose-(1-4)-alpha-D-glucopyranose / alpha-cellobiose


Type: oligosaccharide, Oligosaccharide / Class: Metabolism / Mass: 342.297 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: oligosaccharide / References: alpha-cellobiose
DescriptorTypeProgram
DGlcpb1-4DGlcpa1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/2,2,1/[a2122h-1a_1-5][a2122h-1b_1-5]/1-2/a4-b1WURCSPDB2Glycan 1.1.0
[][a-D-Glcp]{[(4+1)][b-D-Glcp]{}}LINUCSPDB-CARE
#7: Sugar ChemComp-BGC / beta-D-glucopyranose / beta-D-glucose / D-glucose / glucose


Type: D-saccharide, beta linking / Mass: 180.156 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Formula: C6H12O6
IdentifierTypeProgram
DGlcpbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
b-D-glucopyranoseCOMMON NAMEGMML 1.0
b-D-GlcpIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Non-polymers , 4 types, 231 molecules

#6: Chemical ChemComp-HMC / 5-HYDROXYMETHYL-CHONDURITOL


Mass: 176.167 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C7H12O5
#8: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#9: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cl
#10: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 228 / Source method: isolated from a natural source / Formula: H2O

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Details

Has protein modificationY
Nonpolymer detailsTRESTATIN LIKE COMPOUNDS HAVE BEEN ISOLATED FROM STREPTOMYCES GALBUS CULTURE MEDIUM AND TREATED ...TRESTATIN LIKE COMPOUNDS HAVE BEEN ISOLATED FROM STREPTOMYCES GALBUS CULTURE MEDIUM AND TREATED WITH ALPHA-AMYLASE FROM BACILLUS SUBTILIS. FROM THAT MIXTURE, A SUBSTANCE WITH MOLECULAR WEIGHT 1272.5 CONTAINING TWO NITROGEN ATOMS COULD BE ISOLATED. THE PRELIMINARY STRUCTURE OF THIS COMPOUND HAS BEEN DETERMINED USING MASS SPECTROMETRY AND FOUND TO COMPRISE 2 CYC, 2 GLA, AND 4 GLC RESIDUES. THE MOLECULE SEEN IN THE ELECTRON DENSITY HAS THE SEQUENCE GLA-GLC-CYC-GLA-GLC-GLC AND RESULTS FROM PROCESSING OF THE ORIGINAL COMPOUND BY ALPHA-AMYLASE, A PHENOMENON WHICH WAS ALREADY OBSERVED WITH ACARBOSE (SEE REFERENCE 3 FOR DETAILS).

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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: 4.39 Å3/Da / Density % sol: 72 %
Crystal growMethod: vapor diffusion / pH: 6
Details: VAPOR DIFFUSION; 10 MICROLITER OF PROTEIN (15 MG/ML IN 0.1 M AMMONIUM CACODYLATE, PH 10.0 0.001 M V-1532) WERE STEPWISE CONCENTRATED OVER 0.1, 0.15, AND 0.25 M AMMONIUM CACODYLATE, PH 6.0., vapor diffusion
PH range: 6.0-10.0
Crystal grow
*PLUS
Method: vapor diffusion
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
125 mg/mlprotein1drop
20.01 Mcacodylate1drop
30.002 M1dropCaCl2
41dropNH4OH

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Data collection

DiffractionMean temperature: 275 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RUH2R / Wavelength: 1.5418
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Jul 20, 1995
RadiationMonochromator: GRAPHITE(002) / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.2→20.5 Å / Num. obs: 47260 / % possible obs: 93.7 % / Observed criterion σ(I): 2 / Redundancy: 4.1 % / Biso Wilson estimate: 32.1 Å2 / Rmerge(I) obs: 0.123
Reflection shellResolution: 2.2→2.3 Å / % possible all: 97.8
Reflection shell
*PLUS
% possible obs: 97.8 %

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Processing

Software
NameVersionClassification
MOSFLMdata reduction
ROTAVATA/AGROVATAdata reduction
X-PLOR3.1model building
X-PLOR3.1refinement
CCP4(AGROVATAdata scaling
ROTAVATAdata scaling
X-PLOR3.1phasing
RefinementMethod to determine structure: DIFFERENCE FOURIER
Starting model: 1PIF

1pif


Resolution: 2.2→7 Å / σ(F): 2
RfactorNum. reflection% reflection
Rfree0.21 -9.5 %
Rwork0.178 --
obs0.178 44944 93.7 %
Displacement parametersBiso mean: 28.3 Å2
Refine analyzeLuzzati coordinate error obs: 0.2 Å
Refinement stepCycle: LAST / Resolution: 2.2→7 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3904 0 125 228 4257
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONx_bond_d0.007
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_deg1.4
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d25
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d1.2
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it1.5
X-RAY DIFFRACTIONx_mcangle_it2
X-RAY DIFFRACTIONx_scbond_it2
X-RAY DIFFRACTIONx_scangle_it2.5
LS refinement shellResolution: 2.2→2.3 Å
RfactorNum. reflection% reflection
Rfree0.339 -10.6 %
Rwork0.302 4366 -
obs--97.8 %
Software
*PLUS
Name: X-PLOR / Classification: refinement
Refinement
*PLUS
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_deg25
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_deg1.2

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