FDAA

Fluorescent D-amino acids (FDAAs) were developed in collaboration with Michael VanNieuwenhze’s laboratory.

Obtaining FDAAs

We are glad and willing to provide small samples of FDAAs for research purposes. While we want to maximize the ability of researchers to use FDAAs, the expense to synthesize and send FDAAs could not be sustained. Commercial options should be available soon, but for now we have to charge for FDAAs. We provide three standard FDAAs (in stock and ready for shipment):

  • HADA: 250$/2 mg (DAPI channel)
  • BADA: 400$/1 mg (GFP channel)
  • TADA: 400$/1 mg (Cy3 channel)

These FDAAs can be obtained after completing a Material Transfer Agreement (see here for information).

Uses and properties of FDAAs

Fluorescent D-amino acids (FDAAs) enable the fluorescent labeling of areas of peptidoglycan synthesis in most bacterial species. FDAAs are covalently incorporated into peptidoglycan through the activity of peptidoglycan synthases, indicating the formation and remodeling of peptidoglycan in situ.

Streptomyces venezuelae cells were sequentially labeled with FDAAs Atto488ADA (3 h, green), Cy3BADA (15 min, orange), AF350DL (15 min, blue), and Atto610ADA (15 min, red), and then fixed and imaged. Hsu et, al. 10.1039/C7SC01800B

The main publications describing FDAAs and their use are:

FDAA labeling in Bacillus subtilis (Gram-positive) and Escherichia coli (Gram-negative). Hsu et, al. 10.1039/C7SC01800B

 

FDAA structures and properties

Structures and spectra of FDAAs. Hsu et, al. 10.1039/C7SC01800B
Photochemical and physical properties of FDAAs. Hsu et, al. 10.1039/C7SC01800B