The CD27L and CTP1L endolysins targeting Clostridia contain a built-in trigger and release factor.

Dunne M, Mertens HD, Garefalaki V, Jeffries CM, Thompson A, Lemke EA, Svergun DI, Mayer MJ, Narbad A, Meijers R
PLoS Pathog 10(7):e1004228 (2014 Jul)
PMID: 25058163
doi: 10.1371/journal.ppat.1004228
Published in SASBDB:

SASDAL5 – Clostridium difficile bacteriophage 27 endolysin dimer, CD27L

Clostridium difficile bacteriophage 27 endolysin experimental SAS data
NONE model
Sample: Clostridium difficile bacteriophage 27 endolysin dimer, 64 kDa Clostridioides difficile protein
Buffer: 20 mM HEPES 150 mM NaCl, pH: 7.5
Experiment: SAXS data collected at EMBL X33, DORIS III on 2011 Mar 17
RgGuinier 3.3 nm
Dmax 10.6 nm
VolumePorod 72 nm3

SASDAM5 – Clostridium difficile bacteriophage 27 endolysin dimer C238R mutant, CD27L-C238R

Clostridium difficile bacteriophage 27 endolysin C238R mutant experimental SAS data
DAMMIF model
Sample: Clostridium difficile bacteriophage 27 endolysin C238R mutant dimer, 64 kDa Clostridioides difficile protein
Buffer: 20 mM HEPES 500 mM NaCl, pH: 7.5
Experiment: SAXS data collected at EMBL P12, PETRA III on 2013 Jun 21
RgGuinier 4.2 nm
Dmax 14.7 nm
VolumePorod 92 nm3