<http://www.reactome.org/biopax/48892Evidence3726> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.biopax.org/release/biopax-level3.owl#Evidence> .
<http://www.reactome.org/biopax/48892Evidence3726> <http://www.biopax.org/release/biopax-level3.owl#comment> "The second step in vitamin D3 activation requires further hydroxylation of 25-hydroxyvitamin D3 (calcidiol) to 1alpha-25-dihydroxyvitamin D3 (calcitriol). This conversion is mediated by 25-hydroxyvitamin D-1alpha hydroxylase (CYP27B1)."^^<http://www.w3.org/2001/XMLSchema#string> .
<http://www.reactome.org/biopax/48892Evidence3726> <http://www.biopax.org/release/biopax-level3.owl#xref> <http://identifiers.org/pubmed/11856765> .
<http://www.reactome.org/biopax/48892Evidence3726> <http://www.biopax.org/release/biopax-level3.owl#xref> <http://identifiers.org/pubmed/12855575> .
<http://www.reactome.org/biopax/48892Evidence3726> <http://www.biopax.org/release/biopax-level3.owl#evidenceCode> <http://www.reactome.org/biopax/48892EvidenceCodeVocabulary1> .