CTXphi_pIII-N1 is the N-terminal domain, N1, of the pIII protein of the CTXphi bacteriophage of Vibrio cholerae. CTXphi is a ssDNA Inovirus. pIII is a minor coat protein. This domain interacts directly with the C-terminus of TolA, a periplasmic protein of Vibrio cholerae itself as part of the infection mechanism.
Jiyao W et al.(2023). "The conserved domain database in 2023.",