Assertion: cytochrome c's heme | /r/AtLocation | the polypeptide
Facets:
value: through a single thioether bond
type: MANNER
value: covalently
type: MANNER
value: in the two former cases
type: TEMPORAL
value: in many gram-negative bacteria
type: LOCATION
value: by proteins
type: OTHER
Source sentences:
text: In many Gram-negative bacteria, the heme is attached to the polypeptide by the periplasmically functioning cytochrome c maturation (Ccm) proteins.
text: In the two former cases, the heme is covalently attached to the polypeptide through a single thioether bond; in the latter the product is a b-type cytochrome whose heme is noncovalently bound to the polypeptide.