3NPQ - Sequence, Chains, Asymmetric and Biological Units

• Title: STRUCTURE OF THE S-ADENOSYLHOMOCYSTEINE RIBOSWITCH AT 2.18 A
• Keywords: RNA, RIBOSWITCH, S-ADENOSYL-HOMOCYSTEINE
• Experiment: X-ray diffraction
• Number of Models: 1

Database	ID code	Status	Coordinate files
			Header	Asymmetric unit	Biological unit
PDB	3NPQ	released	available	available	Quaternary Structure Server

Asymmetric unit from PDB

Unit	Type	Name	Chain ID	Residues	Atoms	Hetatoms
1	RNA		A	51	1101	0
2	RNA		B	49	1056	0
3	RNA		C	50	1078	0
4	Ligand	S-ADENOSYLHOMOCYSTEINE RIBOSWITCH	A	6	0	61
5	Ligand	S-ADENOSYLHOMOCYSTEINE RIBOSWITCH	B	6	0	61
6	Ligand	S-ADENOSYLHOMOCYSTEINE RIBOSWITCH	C	6	0	61
7	Water			575	0	575
total				743	3235	758

Nucleic acids

Unit 1	G 1 G 2 A 3 C 4 G 5 A 6 G 7 G 8 A 9 G 10 C 11 G 12 C 13 U 14 G 15 C 16 A 17 A 18 G 19 C 20 G 21 A 22 G 23 A 24 G 25 C 26 C 27 C 28 A 29 G 30 G 31 C 32 U 33 C 34 G 35 U 36 C 37 C 38 G 39 A 43 A 44 A 45 C 46 G 47 G 48 C 49 G 50 C 51 U 52 C 53 A 54
Unit 2	G 1 G 2 A 3 C 4 G 5 A 6 G 7 G 8 A 9 G 10 C 11 G 12 C 13 U 14 G 15 C 16 A 17 A 18 G 19 C 20 G 21 A 22 G 23 A 24 G 25 C 26 C 27 C 28 A 29 G 30 G 31 C 32 U 33 C 34 G 35 U 36 C 37 C 38 A 44 A 45 C 46 G 47 G 48 C 49 G 50 C 51 U 52 C 53 A 54
Unit 3	G 1 G 2 A 3 C 4 G 5 A 6 G 7 G 8 A 9 G 10 C 11 G 12 C 13 U 14 G 15 C 16 A 17 A 18 G 19 C 20 G 21 A 22 G 23 A 24 G 25 C 26 C 27 C 28 A 29 G 30 G 31 C 32 U 33 C 34 G 35 U 36 C 37 C 38 A 43 A 44 A 45 C 46 G 47 G 48 C 49 G 50 C 51 U 52 C 53 A 54

Ligands

Unit 4	SAH 55 NCO 56 NCO 57 NCO 58 NCO 59 NCO 60
Unit 5	SAH 55 NCO 56 NCO 57 NCO 58 NCO 59 NCO 60
Unit 6	SAH 55 NCO 56 NCO 57 NCO 58 NCO 59 NCO 60