ISDA

Entry Detail

PDB ID:

7ZCT

Keywords:

FLUORESCENT PROTEIN

Title:

Structure of the red fluorescent protein mScarlet3 at pH 7.5

Biological Source:

Source Organism:

Discosoma sp.

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2022-03-28

Release Date:

2023-04-05

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.33 Å

R-Value Free:

0.22

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Red fluorescent protein drFP583
Chain IDs:A, B
Chain Length:229
Number of Molecules:2
Biological Source:Discosoma sp.

UniProt ID:Q9U6Y8 Pfam ID:PF01353

Primary Citation

mScarlet3: a brilliant and fast-maturing red fluorescent protein.

Gadella Jr, T.W.J, van Weeren, L, Stouthamer, J, Hink, M.A, Wolters, A.H.G, Giepmans, B.N.G, Aumonier, S, Dupuy, J, Royant, A, Bindels, D.S, Haarbosch, L, van Weeren, L, Postma, M, Wiese, K.E, Mastop, M, Aumonier, S, Gotthard, G, Royant, A, Hink, M.A, Gadella, T.W.Show

Nat.Methods 20 541 545 (2023)

PMID: 36973546 DOI: 10.1038/s41592-023-01809-y

Abstact

We report the evolution of mScarlet3, a cysteine-free monomeric red fluorescent protein with fast and complete maturation, as well as record brightness, quantum yield (75%) and fluorescence lifetime (4.0 ns). The mScarlet3 crystal structure reveals a barrel rigidified at one of its heads by a large hydrophobic patch of internal residues. mScarlet3 behaves well as a fusion tag, displays no apparent cytotoxicity and it surpasses existing red fluorescent proteins as a Förster resonance energy transfer acceptor and as a reporter in transient expression systems.

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Primary Citation of related structures