TABLE 2.

Comparison of amino acid compositions of FeSODs from D. gigas and other organisms

Amino acid	Residues/mol for SOD from:
	D. gigasa	D. vulgarisb	Desulfomicrobium norvegicumc	Bacteroides fragilisd
Lys	24	34	32	24.5
His	16	10	10	10.2
Arg	8	8	8	7.2
Asp	32	38	54	43.3
Thr	20	28	24	12.8
Ser	11	12	14	17.8
Glu	11	26	36	36.8
Pro	20	28	16	14.3
Gly	31	30	38	32.2
Ala	58	56	44	35.2
Cysteic acid	1	2	4	NDe
Val	20	28	16	23.1
Met	8	14	4	4.8
Ile	9	6	14	12.8
Leu	38	34	30	32.1
Tyr	18	18	16	14.5
Phe	7	14	24	17.3
Trp	10	12	12	10.5

^aData from this work. 

^bData from GenBank (accession no. AF034841). 

^cData from reference 27. 

^dData from reference 21. 

^eND, not detected.