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SnoopLigase

Host Organism

Streptococcus pneumoniae

Type

Sequence

VNKNDKKPLRGAVFSLQKQHPDYPDIYGAIDQNGTYQNVRTGEDGKLTFKNLSDGKYRLFENSEPPGYKPVQNKPIVAFQIVNGEVRDVTSIVPQPGVPATYEFT

External Links

PDB ID: -
EC: -
MEROPS: -
UniProt ID: -
NCBI: -

Substrate Specificity

SnoopTagJr
DogTag
KLGSIEFI-K-VNK
DIPATYEFTDGKHYIT-N-EPIPPK

Functions

  • Catalyze the isopeptide bond formation between SnoopTagJr and DogTag derived from the terminal regions of the original protein RrgA, used in protein conjugation and cyclizaiton

Expression Platform:

  • E.coli

Mutations:

  • Rate improve > 60-fold: A808P/Q837P/D838G/I839V

Other Properties:

-

References:

  1. [1] (Design, Sequence, Activity) Buldun, C. M.; Jean, J. X.; Bedford, M. R.; Howarth, M. SnoopLigase Catalyzes Peptide-Peptide Locking and Enables Solid-Phase Conjugate Isolation. J Am Chem Soc 2018, 140 (8), 3008-3018. DOI: 10.1021/jacs.7b13237