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Bacteriophage lambda tail assembly protein I This family consists of tail assembly proteins from lambdoid and T1 phages and related prophages, e.g. the tail assembly protein I (TAPI). Members of this family contain a core ubiquitin fold domain. The exact function of TAPI is not clear but it is not incorporated into the mature tail. Gene neighborhoods reveal that TAPI co-occurs with genes encoding the host-specificity protein TapJ, and TapK, which contains a JAB metallopeptidase fused to an NlpC/P60 peptidase. It is proposed that the TAPI protein is processed by the peptidase domains of TapK. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",