Reaction catalyzed by pyridinium-3,5-bisthiocarboxylic acid mononucleotide synthase (4.4.1.37)

		+		[LarE]-L-cysteine	=		AMP	+		[LarE]-S-[5-carboxy-1-(5-O-phosphono-beta-D-ribofuranosyl)pyridin-1-ium-3-carbonyl]-L-cysteine
	5-carboxy-1-(5-O-phospho-beta-D-ribofuranosyl)pyridin-1-ium-3-carbonyl adenylate	+		[LarE]-L-cysteine	=		AMP	+		[LarE]-S-[5-carboxy-1-(5-O-phosphono-beta-D-ribofuranosyl)pyridin-1-ium-3-carbonyl]-L-cysteine