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DogCatcher

Host Organism

Streptococcus pneumoniae

Type

Sequence

KLGEIEFIKVDKTDKKPLRGAVFSLQKQHPDYPDIYGAIDQNGTYQDVRTGEDGKLTFTNLSDGKYRLIENSEPPGYKPVQNKPIVSFRIVDGEVRDVTSIVPQ

External Links

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

Substrate Specificity

DogTag
DIPATYEFTDGKHYIT-N-EPIPPK

Functions

  • Catalyze the isopeptide bond formation between DogCatcher Lys742 (K9) and DogTag Asn854 (N17) derived from the terminal regions of the original protein RrgA, used in protein conjugation and cyclizaiton

Expression Platform:

  • E.coli

Mutations:

  • Rate improve > 250-fold than SpyCatcher003

Other Properties:

-

References:

  1. [1] (Design, Sequence, Activity) Keeble, A. H.; Yadav, V. K.; Ferla, M. P.; Bauer, C. C.; Chuntharpursat-Bon, E.; Huang, J.; Bon, R. S.; Howarth, M. DogCatcher allows loop-friendly protein-protein ligation. Cell Chem Biol 2022, 29 (2), 339–350 e310. DOI: 10.1016/j.chembiol.2021.07.005