ID 1.17.7.2 DE 7-hydroxymethyl chlorophyll a reductase. CA chlorophyll a + H2O + 2 oxidized [2Fe-2S]-[ferredoxin] = 7(1)- CA hydroxychlorophyll a + 2 H(+) + 2 reduced [2Fe-2S]-[ferredoxin]. CC -!- This enzyme, which is present in plant chloroplasts, carries out the CC second step in the conversion of chlorophyll b to chlorophyll a (cf. CC EC 1.1.1.294). DR Q8GS60, HCAR_ARATH ; Q7XTG7, HCAR_ORYSJ ; //