S-adenosylmethionine (abbreviated adomet or sam) is a methyl group donor in numerous metabolic pathways, including the metabolism of lipids and amino acids. which of the following descriptions of s-adenosylmethionine are accurate? check all that apply.
1) the transfer of the methyl group from adomet to an acceptor yields s-adenosylhomocysteine.
2) the methyl group originally attached to the sulfur atom of methionine is transferred to an acceptor.
3) the adenosyl group is linked to methionine via a bond between c5 and the sulfur atom.
4) after atp is cleaved, inorganic phosphate is added to c5 of the intermediate.
5) atp is cleaved to adp and pi in s-adenosylmethionine synthesis.