2RK1 - Sequence, Chains, Asymmetric and Biological Units

• Title: DHFR R67 COMPLEXED WITH NADP AND DIHYDROFOLATE
• Keywords: OXIDOREDUCTASE, NADP, DIHYDROFOLATE, ASYMMETRIC LIGAND BINDING, ANTIBIOTIC RESISTANCE, METHOTREXATE RESISTANCE, ONE-CARBON METABOLISM, PLASMID, TRIMETHOPRIM RESISTANCE
• Experiment: X-ray diffraction
• Number of Models: 1

Database	ID code	Status	Coordinate files
			Header	Asymmetric unit	Biological unit
PDB	2RK1	released	available	available	Quaternary Structure Server

Asymmetric unit from PDB

Unit	Type	Name	Chain ID	Residues	Atoms	Hetatoms
1	Protein	DIHYDROFOLATE REDUCTASE TYPE 2	A	58	856	0
2	Ligand	DIHYDROFOLATE REDUCTASE TYPE 2	A	5	0	85
3	Water			109	0	109
total				172	856	194

Proteins

Unit 1

ASN 21 ALA 22 THR 23 PHE 24 GLY 25 MET 26 GLY 27 ASP 28 ARG 29 VAL 30 ARG 31 LYS 32 LYS 33 SER 34 GLY 35 ALA 36 ALA 37 TRP 38 GLN 39 GLY 40 GLN 41 ILE 42 VAL 43 GLY 44 TRP 45 TYR 46 CYS 47 THR 48 ASN 49 LEU 50 THR 51 PRO 52 GLU 53 GLY 54 TYR 55 ALA 56 VAL 57 GLU 58 SER 59 GLU 60 ALA 61 HIS 62 PRO 63 GLY 64 SER 65 VAL 66 GLN 67 ILE 68 TYR 69 PRO 70 VAL 71 ALA 72 ALA 73 LEU 74 GLU 75 ARG 76 ILE 77 ASN 78

Ligands

Unit 2

DHF 0 NAP 1 MRD 500 MRD 501 MRD 502