Table 1.

Alignment of the N-terminal amino acid sequences of DSR subunits (α, β, and γ) determined by Edman degradation fromD. vulgaris Hildenborough, D. desulfuricans Essex 6, and B. wadsworthiaRZATAUa

SubunitSize (kDa)OrganismSequenceReference
α 50 D. vulgaris A—K H A T P K L D Q L E S G P W X S F V v d k k 36
50 D. desulfuricans A—K H A T P L L D Q L E S G P W P S F V 40
49 B. wadsworthia A I K H P T P L L D Q L E T G P W P X F V S This study
β 40 D. vulgaris A F I S S G Y N P E K p m a n 36
45 D. desulfuricans A F I P T G Y N P X K P M 40
53 B. wadsworthia A F V S S G Y N P E K P M E G R I S D IThis study
γ 11 D. vulgaris A E V T Y K G K S F E V D E D G F L L R F D D W 18
11 D. desulfuricans A E I T Y K G K 40
11 B. wadsworthia A E V T Y K G K T F E V D E D G F L L K F D d This study
  • a Identifications in lowercase letters are uncertain. X, residue not identified; —, alignment gap.