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Type 10 protein secretion system consisting of proteins encoded within a single gene cluster that includes (1) a LysR-type transcriptional regulator (Stm0014; Q8ZS13; 315 aas), (2) a holin (Stm0015; Q8ZS12; 114 aas; see also TC family # 1.E.5), (3) a peptidoglycan hydrolase (a muramidase; Stm0016; Q8ZS11; 177 aas), (4) a second transcriptional regulator, ToxR-like,  (Stm17; Q8ZS10), and (5) the secreted exo-chitinase (Stm0018; Q8ZS09; 699 aas).

Type 10 secretion system of Salmonella enterica (Typhi) LysR-type transcriptional regulator, Q8ZS13
Holin, Q8ZS12
Peptidoglycan hydrolyase, Q8ZS11
ToxR-like transcriptional regulator, Q8ZS10
Chitinase (secreted), ChiA, Q8ZS09

Proteins involved in type 10 protein secretion system. These include a holin (ChiW, 108 aas; TC# 1.E.2.1.13; CDG13439), a peptidoglycan hydrolase (phage-related toxin; ChiX; 133 aas; CDG13438), and a spannin belonging to the 1.M.7.1 subfamily of spanins (ChiY; 126 aas; CDG13437). There are three similar Chitinases in S. marcescens, and all of them may be exported via this system (Palmer et al. 2021).

Type 10 protein secretion system (may be incomplete) of Serratia marcescens subsp. marcescens Db11