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Butelase-1

Host Organism

Type

PAL

Sequence

MKNPLAILFLIATVVAVVSGIRDDFLRLPSQASKFFQADDNVEGTRWAVLVAGSKGYVNYRHQADVCHAYQILKKGGLKDENIIVFMYDDIAYNESNPHPGVIINHPYGSDVYKGVPKDYVGEDINPPNFYAVLLANKSALTGTGSGKVLDSGPNDHVFIYYTDHGGAGVLGMPSKPYIAASDLNDVLKKKHASGTYKSIVFYVESCESGSMFDGLLPEDHNIYVMGASDTGESSWVTYCPLQHPSPPPEYDVCVGDLFSVAWLEDCDVHNLQTETFQQQYEVVKNKTIVALIEDGTHVVQYGDVGLSKQTLFVYMGTDPANDNNTFTDKNSLGTPRKAVSQRDADLIHYWEKYRRAPEGSSRKAEAKKQLREVMAHRMHIDNSVKHIGKLLFGIEKGHKMLNNVRPAGLPVVDDWDCFKTLIRTFETHCGSLSEYGMKHMRSFANLCNAGIRKEQMAEASAQACVSIPDNPWSSLHAGFSV

External Links

PDB ID: 6DHI
EC: 3.4.22.34
MEROPS: C13 legumain
UniProt ID: A0A060D9Z7
NCBI accession: -

Substrate Specificity

P1
P1'
P2'
N/D
X
L/V/I/F

Functions

  • Intermolecular backbone terminal ligation
  • Backbone terminal cyclization, max. kcat/Km: 1.3 x 10^6 M-1s-1
  • Specificity stringency: Prime-low, Nonprime-high
  • pH optimal: pH 6-6.5

Expression Platform:

  • E. coli
  • P. pastoris

Mutations:

-

Other Properties:

-

References:

  1. [1] Nguyen, G. K. T.; Wang, S.; Qiu, Y.; Hemu, X.; Lian, Y.; Tam, J. P. Butelase 1 is an Asx-specific ligase enabling peptide macrocyclization and synthesis. Nat. Chem. Biol. 2014, 10 (9), 732-738, Article. (Sequence, activity) DOI: 10.1038/nchembio.1586