preferred_name: [alginate](n) + GDP-alpha-D-mannuronate <=> [alginate](n+1) + GDP + H(+)
preferred_name_lc: [alginate](n) + gdp-alpha-d-mannuronate <=> [alginate](n+1) + gdp + h(+)
label: [alginate](n) + GDP-alpha-D-mannuronate <=> [alginate](n+1) + GDP + H(+)
label_lc: [alginate](n) + gdp-alpha-d-mannuronate <=> [alginate](n+1) + gdp + h(+)