This entry represents the N-terminal beta sandwich domain found in a variety of phage tail sheath proteins.

1: Tail sheath and tail tube genes of the temperate coliphage 186. Xue Q, Egan JB; Virology 1995;212:218-221. PMID:7676633

2: Nucleotide sequence of the genes encoding the major tail sheath and tail tube proteins of bacteriophage P2. Temple LM, Forsburg SL, Calendar R, Christie GE; Virology 1991;181:353-358. PMID:1825255

3: Nucleotide sequence of the tail tube structural gene of bacteriophage T4. Arisaka F, Ishimoto L, Kassavetis G, Kumazaki T, Ishii S; J Virol 1988;62:882-886. PMID:2963141