4.99.1.4 leaf - 729160 4.99.1.4 leaf predominant expression 748869 4.99.1.4 additional information gene expression is found in all tissues analyzed 748869 4.99.1.4 seedling expression of both uroporphyrinogen III methyl transferase (UPM1) and sirohydrochlorin ferrochelatase is minimal in etiolated seedlings and is upregulated in light 748869