TABLE 2.

Comparison of gvp loci identified in archaea and bacteria

Species or region	gvp loci identified
Halobacterium salinarum	A	C	D	E	F	G	H	I	J	K	L	M	N	O
minvac	A	—d	—	—	F	G	—	—	J	K	L	M	—	O
Anabaena flos-aquaea	A	C							J	K	L		N
Bacillus megateriumb	A	—	—	—	F	G	—	Q	J	K	L	S	N	R
Streptomyces coelicolorc	A	—	—	—	F	G	—	—	J	K	L	S	—	O

^aPublished as the gvpACNJKL gene cluster (21). 

^bPublished as the gvpAPQ-gvpBRNFGLSKJTU gene cluster (26). 

^cFound as the gvpOAFGxxJLSK gene cluster on cosmid 1E6 in the EMBL gene sequence data bank. 

^d—, a homologous gvp gene has not been identified in the gvp gene cluster investigated.