Assertion: cytochrome's heme | /r/HasProperty | presented in table s1
Facets:
Source sentences:
text: In each of the four protein molecules in the asymmetric unit of the T213A/C317H structure, the heme is present and is clearly histidine-ligated, with well-resolved electron density for H317 extending onto the heme iron ( Figure 1 ; structure statistics presented in Table S1 ).