TABLE 3.

Genomic features unique to microtus strains^a

Gene in strain:		Annotated function	Feature in microtus strains
CO92	91001
YPPCP1.07	pPCP08	Pla, invasin/adhesin	Thr to Ile mutation at aab 273
YPCD1.26c	pCD60	YopM, effector of LCRc	42 aa; deletion after aa 549
YPCD1.31c	pCD52	V antigen, LcrV	16-bp deletions in 91001 at 969 bp after start codon
YPCD1.39c	pCD44	YopN, effector of LCR	Leu-to-Phe mutation at aa 66
YPMT1.23c	pMT024	Unknown	Leu-to-Pro mutation at aa 496
YPMT1.25c	pMT026	Unknown	Gln-to-His mutation at aa 168
YPMT1.43c	pMT056	Unknown	Frameshift caused by 20-bp deletion at 169 bp after start codon
YPO1956	YP1700	Unknown	Disrupted by IS285
YPO1973	YP1715	Putative GntR/family transcriptional regulatory protein	Disrupted by IS100
YPO2258	YP2054	Arabinose operon regulatory protein, AraC	Frameshift caused by 112-bp deletion at 26 bp after start codon and a G insertion at 774 bp after start codon
YPO2729	YP2435	Putative membrane protein	Disrupted by IS285
YPO2731	YP2433	Putative membrane protein	Frameshift caused by 2-bp deletion at 153 bp after start codon
YPO3049	YP2671	Putative binding protein-dependent transport system, inner membrane component	Frameshift caused by 7-bp deletion at 1,125 bp after start codon
YPO1986-1987 (RD1)		Exported protein	Absent
YPO2096-2135 (RD2)		Prophage	Absent
YPO2469 (RD3)		Unknown	Absent
YPO2487-2489 (RD4)		Putative membrane protein	Absent
YPO3046-3047 (RD5)		Putative sulfatase	Absent

^aAll genes listed are intact in all of the Y. pestis strains except the microtus strains.

^baa, amino acid.

^cLCR, low-calcium response.