TABLE 3.

Similarity of Rtp43 to λ J homologs

Rank of overall similarity	Phage	Receptor	Length of λ J homolog (aa)	Overalla	BlastP score
					N-terminal 840 aab	C-terminal 296 aab
1	T1	FhuA	1,172	1,358	1,103	224
2	HK97	LamB	1,296	870	747	132
3	HK022	FhuA	1,183	867	742	143
4	N15	FhuA	1,061	852	729	129
5	phiKO2	Uc	3,433	742	714	88
6	phi1026b	U	1,101	656	579	101
7	phiE125	U	1,101	648	573	100
8	ES18	FhuAd	1,051	386	303	97
9	λ	LamB	1,132	328	327	34

^aFull-length Rtp43 (1,136 aa) was used to search the virus section of the NCBI nonredundant protein database.

^bOnly the 840 N-terminal residues or the 296 C-terminal residues of Rtp43 were used for the BlastP search.

^cU, unknown.

^dFhuA of Salmonella enterica serovar Typhimurium, formerly designated SidA (13, 59), but not FhuA of E. coli. phiE125 (96) and phi1026b (30) are temperate phages that infect Burkholderia mallei, both of which require LPS O antigen for infection. Information on additional protein receptors is not available.