Multicopy crystallographic refinement of a relaxed glutamine synthetase from Mycobacterium tuberculosis highlights flexible loops in the enzymatic mechanism and its regulation.

Gill, H.S; Pfluegl, G.M; Eisenberg, D.

Macromolecule Content

Unique protein chains: 1

1HTQ

Multicopy crystallographic structure of a relaxed glutamine synthetase from Mycobacterium tuberculosis

DOI: 10.2210/pdb1htq/pdb

Classification: LIGASE
Deposited: 2001-01-01 Released: 2002-07-24
Deposition author(s): Gill, H.S., Pfluegl, G.M., Eisenberg, D., TB Structural Genomics Consortium
Organism: Mycobacterium tuberculosis
Expression System: Escherichia coli

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.4 Å
R-Value Free: 0.223
R-Value Work: 0.204

wwPDB Validation 3D Report Full Report

Literature

Macromolecules

Classification: LIGASE

Total Structure Weight: 1298179.50

Macromolecule Entities
Molecule	Chains	Length	Organism	Details
glutamine synthetase	A, B, C..., D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, XA, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X	477	Mycobacterium tuberculosis	EC#: 6.3.1.2 IUBMB Gene Name(s): glnA1 glnA Rv2220 MTCY190.31 MTCY427.01
Metabolic Pathways Maps: Reactions: ESCHER BiGG
Protein Feature View - UniProtKB AC: P9WN39 UniProt Full Protein Feature View for P9WN39 Find similar proteins by: Sequence \| Structure Show Detailed Protein Feature View for P9WN39/1HTQ

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions	3D Interactions
AMP Query on AMP Download SDF File Download CCD File	A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X	ADENOSINE MONOPHOSPHATE C₁₀ H₁₄ N₅ O₇ P UDMBCSSLTHHNCD-KQYNXXCUSA-N	Poseview Image of AMP in 1HTQ Help Black dashed lines indicate hydrogen bonds, salt bridges, and metal interactions. Green solid line show hydrophobic interactions and green dashed lines show π-π and π-cation interactions. Source Information Interactions are determined by geometric criteria as described in K. Stierand, M. Rarey (2010), Drawing the PDB: Protein-ligand complexes in two dimensions, ACS Med. Chem. Lett., DOI: 10.1021/ml100164p. Ions and some metal complexes are excluded, as well as cases where no interaction profile could be generated. Poseview diagrams can be calculated for approximately 92% of the remaining complexes in the PDB. PoseView is developed at the Center for Bioinformatics Hamburg and jointly provided with BioSolveIT as a community service at the PDB. A stand-alone version is provided by BioSolveIT.	Ligand Explorer NGL Binding Pocket (JSmol) Electron Density (JSmol)
CIT Query on CIT Download SDF File Download CCD File	A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X	CITRIC ACID C₆ H₈ O₇ KRKNYBCHXYNGOX-UHFFFAOYSA-N	Poseview Image of CIT in 1HTQ Help Black dashed lines indicate hydrogen bonds, salt bridges, and metal interactions. Green solid line show hydrophobic interactions and green dashed lines show π-π and π-cation interactions. Source Information Interactions are determined by geometric criteria as described in K. Stierand, M. Rarey (2010), Drawing the PDB: Protein-ligand complexes in two dimensions, ACS Med. Chem. Lett., DOI: 10.1021/ml100164p. Ions and some metal complexes are excluded, as well as cases where no interaction profile could be generated. Poseview diagrams can be calculated for approximately 92% of the remaining complexes in the PDB. PoseView is developed at the Center for Bioinformatics Hamburg and jointly provided with BioSolveIT as a community service at the PDB. A stand-alone version is provided by BioSolveIT.	Ligand Explorer NGL Binding Pocket (JSmol) Electron Density (JSmol)
MN Query on MN Download SDF File Download CCD File	A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X	MANGANESE (II) ION Mn WAEMQWOKJMHJLA-UHFFFAOYSA-N	Poseview Image of MN in 1HTQ Help Black dashed lines indicate hydrogen bonds, salt bridges, and metal interactions. Green solid line show hydrophobic interactions and green dashed lines show π-π and π-cation interactions. Source Information Interactions are determined by geometric criteria as described in K. Stierand, M. Rarey (2010), Drawing the PDB: Protein-ligand complexes in two dimensions, ACS Med. Chem. Lett., DOI: 10.1021/ml100164p. Ions and some metal complexes are excluded, as well as cases where no interaction profile could be generated. Poseview diagrams can be calculated for approximately 92% of the remaining complexes in the PDB. PoseView is developed at the Center for Bioinformatics Hamburg and jointly provided with BioSolveIT as a community service at the PDB. A stand-alone version is provided by BioSolveIT.	Ligand Explorer NGL Binding Pocket (JSmol) Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.4 Å
R-Value Free: 0.223
R-Value Work: 0.204
Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 207.72	α = 90.00
b = 257.69	β = 90.00
c = 274.50	γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots

Entry History

Deposition Data

Deposited Date: 2001-01-01
Released Date: 2002-07-24
Deposition author(s): Gill, H.S., Pfluegl, G.M., Eisenberg, D., TB Structural Genomics Consortium (TBSGC)

Revision History

Version 1_0: 2002-07-24
Type: Initial release
Version 1_1: 2008-04-27
Type: Version format compliance
Version 1_2: 2011-07-13
Type: Version format compliance
Version 1_3: 2015-09-09
Type: Version format compliance
Version 1_4: 2017-10-04
Type: Refinement description

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