FB2026_03 , released September 17, 2026
Experimental tool: DsRed-Express2
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General Information
Symbol
DsRed-Express2
FlyBase ID
FBto0000635
Name
Description
Description

DsRed-Express2 is a tetrameric red fluorescent protein with an excitation peak of 554nm and an emission peak of 591nm in vitro. It is an artificial derivative of the naturally occurring fluorescent protein encoded by the Discosoma drFP583 gene (GenBank:AF168419; AAF03369), containing the mutations A2D, S4T, D6N, E10P, R17H, R36K, K47Q, S117T, K121H, M141L, A145P, D169G, Q188K, I210V, G219A and L225Q relative to DsRed(T1). DsRed-Express2 has minimal cytotoxicity (PMID:18953349).

Uses
External Crossreferences and Linkouts
FPbase - A database for users of fluorescent proteins.
GenBank Nucleotide - A collection of sequences from several sources, including GenBank, RefSeq, TPA, and PDB.
Related experimental tools
Common gene of origin (35)
Tool
Uses
C-mCh
DsRed
DsRed1
DsRed2
DsRed(E5)
DsRed(E5-NA)
DsRed(M1)
DsRed(S197Y)
DsRed(T1)
DsRed(T3)
DsRed(T4)
DsRed(Unk)
dTomato
E2-Orange
fmCherry
mApple
mCherry
mOrange
mOrange2
mPlum
mRFP1
mRFP(Unk)
mRFPruby
mStraw
N-mCh
PAmCN
pHlorina
pHTomato
pHuji
sfCherry2(1-10)
sfCherry2(11)
slowFT
td-fmCherry
tdimer2(12)
tdTomato
Transgenic Constructs
Insertions ( 0 )
Synonyms and Secondary IDs (1)
Reported As
Symbol Synonym
DsRed-Express2
Name Synonyms
Secondary FlyBase IDs
    References (2)