7K8L

Beta-lactamase, Unmixed

• PDB DOI: https://doi.org/10.2210/pdb7K8L/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Mycobacterium tuberculosis
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2020-09-27 Released: 2021-09-22 
• Deposition Author(s): Pandey, S., Schmidt, M.
• Funding Organization(s): National Science Foundation (NSF, United States)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.270 
• R-Value Work: 0.205 
• R-Value Observed: 0.208 

Literature

Observation of substrate diffusion and ligand binding in enzyme crystals using high-repetition-rate mix-and-inject serial crystallography

Pandey, S., Calvey, G., Katz, A.M., Malla, T.N., Koua, F.H.M., Martin-Garcia, J.M., Poudyal, I., Yang, J.H., Vakili, M., Yefanov, O., Zielinski, K.A., Bajt, S., Awel, S., Doerner, K., Frank, M., Gelisio, L., Jernigan, R., Kirkwood, H., Kloos, M., Koliyadu, J., Mariani, V., Miller, M.D., Mills, G., Nelson, G., Olmos, J.L.J., Sadri, A., Sato, T., Tolstikova, A., Xu, W., Ourmazd, A., Spence, J.C.H., Schwander, P., Barty, A., Chapman, H.N., Fromme, P., Mancuso, A.P., Phillips, G.N.J., Bean, R., Pollack, L., Schmidt, M.

(2021) IUCrJ 8: 878-895

• DOI: https://doi.org/10.1107/S2052252521008125

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 3 assigned by authors and generated by PISA (software)

Biological Assembly 4  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 4 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 113.98 kDa 
• Atom Count: 8,101 
• Modelled Residue Count: 1,060 
• Deposited Residue Count: 1,068 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-lactamase	A, B, C, D	267	Mycobacterium tuberculosis	Mutation(s): 0  Gene Names: blaC, ERS027646_02769 EC: 3.5.2.6
UniProt
Find proteins for P9WKD3 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)) Explore P9WKD3  Go to UniProtKB:  P9WKD3

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PO4 (Subject of Investigation/LOI)	E [auth A], F [auth B], G [auth C], H [auth D]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.270 
• R-Value Work: 0.205 
• R-Value Observed: 0.208 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 80.91	α = 90
b = 99.54	β = 108.43
c = 112.58	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
CrystFEL	data reduction
CrystFEL	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2021-09-22 
Deposition Author(s): Pandey, S., Schmidt, M.

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Funding Organization	Location	Grant Number
National Science Foundation (NSF, United States)	United States	--

Revision History  

• Version 1.0: 2021-09-22
  Type: Initial release
  
• Version 1.1: 2021-11-10
  Changes: Database references
• Version 1.2: 2023-10-18
  Changes: Data collection, Refinement description