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- PDB-2a2d: X-ray structure of human n-acetyl galactosamine kinase complexed ... -

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Basic information

Entry
Database: PDB / ID: 2a2d
TitleX-ray structure of human n-acetyl galactosamine kinase complexed with Mn-AMPPNP and n-acetyl glactosamine
ComponentsN-acetylgalactosamine kinase
KeywordsTRANSFERASE / kinase / galactokinase
Function / homology
Function and homology information


N-acetylgalactosamine kinase / N-acetylgalactosamine kinase activity / galactokinase activity / galactose metabolic process / carbohydrate metabolic process / ATP binding / cytosol
Similarity search - Function
de novo design (two linked rop proteins) - #340 / Alpha-Beta Plaits - #3170 / Galactokinase, N-terminal domain / Galactokinase, conserved site / Galactokinase galactose-binding signature / Galactokinase signature. / Galactokinase / Mevalonate/galactokinase / GHMP kinase, ATP-binding, conserved site / GHMP kinases putative ATP-binding domain. ...de novo design (two linked rop proteins) - #340 / Alpha-Beta Plaits - #3170 / Galactokinase, N-terminal domain / Galactokinase, conserved site / Galactokinase galactose-binding signature / Galactokinase signature. / Galactokinase / Mevalonate/galactokinase / GHMP kinase, ATP-binding, conserved site / GHMP kinases putative ATP-binding domain. / GHMP kinase, C-terminal domain / GHMP kinases C terminal / GHMP kinase N-terminal domain / GHMP kinases N terminal domain / GHMP kinase, C-terminal domain superfamily / de novo design (two linked rop proteins) / Ribosomal Protein S5; domain 2 - #10 / Ribosomal Protein S5; domain 2 / Ribosomal protein S5 domain 2-type fold, subgroup / Ribosomal protein S5 domain 2-type fold / Alpha-Beta Plaits / Up-down Bundle / 2-Layer Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
2-acetamido-2-deoxy-alpha-D-galactopyranose / PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER / : / N-acetylgalactosamine kinase
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.2 Å
AuthorsThoden, J.B. / Holden, H.M.
CitationJournal: J.Biol.Chem. / Year: 2005
Title: The molecular architecture of human N-acetylgalactosamine kinase.
Authors: Thoden, J.B. / Holden, H.M.
History
DepositionJun 22, 2005Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 5, 2005Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 2.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Database references / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / struct_site / struct_site_gen
Item: _atom_site.auth_atom_id / _atom_site.label_atom_id ..._atom_site.auth_atom_id / _atom_site.label_atom_id / _chem_comp.name / _chem_comp.type / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _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.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.value / _struct_conn.pdbx_dist_value / _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
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Aug 23, 2023Group: 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: N-acetylgalactosamine kinase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)53,5714
Polymers52,7891
Non-polymers7823
Water4,612256
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)119.100, 119.100, 65.900
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number170
Space group name H-MP65

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Components

#1: Protein N-acetylgalactosamine kinase / GalNAc kinase / Galactokinase 2


Mass: 52788.641 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GALK2, GK2 / Plasmid: pET28 / Production host: Escherichia coli (E. coli) / Strain (production host): HMS174(DE3)
References: UniProt: Q01415, Transferases; Transferring phosphorus-containing groups; Phosphotransferases with an alcohol group as acceptor
#2: Sugar ChemComp-A2G / 2-acetamido-2-deoxy-alpha-D-galactopyranose / N-acetyl-alpha-D-galactosamine / 2-acetamido-2-deoxy-alpha-D-galactose / 2-acetamido-2-deoxy-D-galactose / 2-acetamido-2-deoxy-galactose / N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE


Type: D-saccharide, alpha linking / Mass: 221.208 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGalpNAcaCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-a-D-galactopyranosamineCOMMON NAMEGMML 1.0
a-D-GalpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GalNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#3: Chemical ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mn
#4: Chemical ChemComp-ANP / PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER


Mass: 506.196 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H17N6O12P3 / Comment: AMP-PNP, energy-carrying molecule analogue*YM
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 256 / 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: 2.5 Å3/Da / Density % sol: 50 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 6
Details: PEG-3400, Mn-AMPPNP, NaCl, MES, n-acetyl galactosamine, pH 6, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418 / Wavelength: 1.5418 Å
DetectorType: Bruker Platinum 135 / Detector: CCD / Date: Apr 29, 2005 / Details: montel optics
RadiationMonochromator: montel optics / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.2→30 Å / Num. all: 26919 / Num. obs: 26919 / % possible obs: 98.9 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 8.7 % / Rsym value: 0.081 / Net I/σ(I): 15.9
Reflection shellResolution: 2.2→2.3 Å / Redundancy: 3 % / Mean I/σ(I) obs: 3.5 / Num. unique all: 3322 / Rsym value: 0.354 / % possible all: 98.4

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Processing

Software
NameClassification
PROTEUM PLUSdata collection
SAINTdata reduction
AMoREphasing
TNTrefinement
PROTEUM PLUSdata reduction
SAINTdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB entry 2a2c

2a2c


Resolution: 2.2→30 Å / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.247 2693 -random
Rwork0.203 ---
all0.207 26919 --
obs0.207 26919 98.9 %-
Refinement stepCycle: LAST / Resolution: 2.2→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3462 0 47 256 3765
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONt_bond_d0.013
X-RAY DIFFRACTIONt_angle_deg2.49

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