Table 3.

PRMT–peptide complex structures

PRMT type and PDB ID	Peptide sequence detail	Peptide type
RnPRMT1 (1ORH)	GGFGGRGGFG	R3 (AdoHcy)
RnPRMT1 (1OR8)	Chain-b 1-GGRGGFGGRGGFGGRGGFG-19	R3 (AdoHcy)
	Chain-c 1-GGRGGFGGRGGFGGRGGFG-19
	Chain-d 1-GGRGGFGGRGGFGGRGGFG-19
	Chain-e 1-E1GGRGGFGGRGGFGGRGGFG-19
HsPRMT5 (4GQB)	1-SGRGKGGKGLGKGGAKRHRKV-21	Histone H4 (OXU)
HsPRMT5 (5FA5)	1-SGRGKGGKGLGKGGAKRHRK-21	Histone H4 (MTA)
TbPRMT7 (4M38)	1-SGRGKGGKGLGKGGAKRHRKV-21	Histone H4 (AdoHcy)

For the R3 peptide (PDB ID: 1OR8) the arginine position is shown

Residues that has only revealed peptide backbone are shown as bold characters; residues containing no electron density in the crystal structure are shown as regular characters. Residues with clear electron density of the side chain and backbone are shown as bold and italic characters. Co-substrates are shown in parentheses