Table 4.

Posttranslational modifications in diatom Rubiscos

HYP, 4-hydroxyproline; CSO, S-hydroxycysteine; LYO, 4-hydroxylysine; LOH, 3,4-dihydroxylysine; 8RE, 3,4-dihydroxylysine; HLU, β-hydroxyleucine; HL2, β-hydroxyleucine; KCX, lysine-NZ-carboxylic acid; M3L, N-trimethyllysine; SNC, S-nitrosocysteine. LOH and 8RE are stereoisomers at the Cß position of dihydroxylysine. HLU and HL2 are stereoisomers at the Cß position of β-hydroxyleucine.

Species	Pro-48	Cys-109	Lys-150	Pro-155	Leu-174	Lys-198	Lys-205	Lys-346	Lys-457
T. antarctica	HYP	CSO	LYO	HYP	HLU	LYO	KCX	M3L	NMa
T. hyalina	HYP	CSO	8RE	HYP	HLU	LYO	KCX	M3L	NM
S. marinoi		NM	LOH	HYP	HLU	LYO	KCX	M3L	NM
C. socialis	HYP	CSO	LOH	HYP	HL2		KCX	M3L	SNC

^a NM, not modeled because of low occupancy.