8HLK

Structure of McyB-C1A1 complexed with L-Leu and AMP

• PDB DOI: https://doi.org/10.2210/pdb8HLK/pdb

• Classification: TOXIN
• Organism(s): Microcystis aeruginosa
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-11-30 Released: 2023-12-13 
• Deposition Author(s): Peng, Y.J.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.269 
• R-Value Work: 0.213 
• R-Value Observed: 0.216 

Literature

Structure of McyB-C1A1 complexed with L-Leu and AMP

Peng, Y.J.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 110.51 kDa 
• Atom Count: 7,536 
• Modelled Residue Count: 910 
• Deposited Residue Count: 967 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Microcystin synthetase B (Fragment)	A	967	Microcystis aeruginosa	Mutation(s): 0  Gene Names: mcyB
UniProt
Find proteins for O54504 (Microcystis aeruginosa) Explore O54504  Go to UniProtKB:  O54504

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
AMP (Subject of Investigation/LOI)	C [auth A]	ADENOSINE MONOPHOSPHATE C10 H14 N5 O7 P UDMBCSSLTHHNCD-KQYNXXCUSA-N
LEU (Subject of Investigation/LOI)	B [auth A]	LEUCINE C6 H13 N O2 ROHFNLRQFUQHCH-YFKPBYRVSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.269 
• R-Value Work: 0.213 
• R-Value Observed: 0.216 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 152.534	α = 90
b = 152.534	β = 90
c = 135.738	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
BLU-MAX	data collection
Aimless	data scaling

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-12-13 
Deposition Author(s): Peng, Y.J.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-12-13
  Type: Initial release