AF_AFQ99TD2F1

COMPUTED STRUCTURE MODEL OF FORMATE--TETRAHYDROFOLATE LIGASE

There are no experimental data to verify the accuracy of this computed structure model. See Model Confidence metrics below for all regions of the polypeptide chain

• AlphaFold DB: Q99TD2
• Released in AlphaFold DB:  2021-12-09
  Last Modified in AlphaFold DB: 2025-08-01
• Organism(s): Staphylococcus aureus subsp. aureus Mu50
• UniProtKB: Q99TD2

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Model Confidence 

• pLDDT (global): 95.89
• pLDDT (local):

Model Confidence 

•   Very high (pLDDT > 90)    
•   Confident (70 < pLDDT ≤ 90)    
•   Low (50 < pLDDT ≤ 70)    
•   Very low (pLDDT ≤ 50)    

Computed Structure Models provide per-residue confidence score (pLDDT) between 0 and 100. Some regions below 50 pLDDT may be unstructured in isolation.

Assembly  

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

Macromolecule Content 

• Total Structure Weight: 59.94 kDa 
• Atom Count: 4,211 
• Modeled Residue Count: 555 
• Deposited Residue Count: 555 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Formate--tetrahydrofolate ligase	A	555	Staphylococcus aureus subsp. aureus Mu50	Mutation(s): 0  Gene Names: fhs EC: 6.3.4.3
UniProt
Find proteins for Q99TD2 (Staphylococcus aureus (strain Mu50 / ATCC 700699)) Explore Q99TD2  Go to UniProtKB:  Q99TD2