2CAX - Sequence, Chains, Asymmetric and Biological Units

• Title: STRUCTURAL BASIS FOR COOPERATIVE BINDING OF RIBBON-HELIX-HEL REPRESSOR OMEGA TO MUTATED DIRECT DNA HEPTAD REPEATS
• Keywords: TRANSCRIPTIONAL REPRESSOR, INC18 FAMILY OF PLASMIDS, RHH, ME SUPERFAMILY, COOPERATIVE DNA BINDING, DNA HEPTAD 5'- A/T AT 3', PLASMID MAINTENANCE, DNA- BINDING, REGULATORY PROTEIN
• Experiment: X-ray diffraction
• Number of Models: 1

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

Asymmetric unit from PDB

Unit	Type	Name	Chain ID	Residues	Atoms	Hetatoms
1	Protein	ORF OMEGA	A	53	428	0
2	Protein	ORF OMEGA	B	50	406	0
3	Protein	ORF OMEGA	C	53	428	0
4	Protein	ORF OMEGA	D	47	381	0
5	Other macromolecule	5'-D(*GP*AP*AP*TP*CP*AP*CP*AP*AP*AP *TP*CP*AP*CP* 3'	G	17	350	0
6	Other macromolecule	5'-D(*TP*TP*GP*TP*GP*AP*TP*TP*TP*GP *TP*GP*AP*TP* 3'	H	17	351	0
7	Other macromolecule	5'-D(*GP*AP*AP*TP*CP*AP*CP*AP*AP*GP *TP*CP*AP*CP*AP*AP*GP*C)-3'	U	18	370	0
8	Other macromolecule	5'-D(*CP*TP*TP*GP*TP*GP*AP*CP*TP*TP *GP*TP*GP*AP*TP*TP*CP*G)-3'	Y	18	369	0
9	Water			42	0	42
total				315	3083	42

Proteins

Unit 1	MET 19 ALA 20 LYS 21 LYS 22 ASP 23 ILE 24 MET 25 GLY 26 ASP 27 LYS 28 THR 29 VAL 30 ARG 31 VAL 32 ARG 33 ALA 34 ASP 35 LEU 36 HIS 37 HIS 38 ILE 39 ILE 40 LYS 41 ILE 42 GLU 43 THR 44 ALA 45 LYS 46 ASN 47 GLY 48 GLY 49 ASN 50 VAL 51 LYS 52 GLU 53 VAL 54 MET 55 ASP 56 GLN 57 ALA 58 LEU 59 GLU 60 GLU 61 TYR 62 ILE 63 ARG 64 LYS 65 TYR 66 LEU 67 PRO 68 ASP 69 LYS 70 LEU 71
Unit 2	LYS 22 ASP 23 ILE 24 MET 25 GLY 26 ASP 27 LYS 28 THR 29 VAL 30 ARG 31 VAL 32 ARG 33 ALA 34 ASP 35 LEU 36 HIS 37 HIS 38 ILE 39 ILE 40 LYS 41 ILE 42 GLU 43 THR 44 ALA 45 LYS 46 ASN 47 GLY 48 GLY 49 ASN 50 VAL 51 LYS 52 GLU 53 VAL 54 MET 55 ASP 56 GLN 57 ALA 58 LEU 59 GLU 60 GLU 61 TYR 62 ILE 63 ARG 64 LYS 65 TYR 66 LEU 67 PRO 68 ASP 69 LYS 70 LEU 71
Unit 3	MET 19 ALA 20 LYS 21 LYS 22 ASP 23 ILE 24 MET 25 GLY 26 ASP 27 LYS 28 THR 29 VAL 30 ARG 31 VAL 32 ARG 33 ALA 34 ASP 35 LEU 36 HIS 37 HIS 38 ILE 39 ILE 40 LYS 41 ILE 42 GLU 43 THR 44 ALA 45 LYS 46 ASN 47 GLY 48 GLY 49 ASN 50 VAL 51 LYS 52 GLU 53 VAL 54 MET 55 ASP 56 GLN 57 ALA 58 LEU 59 GLU 60 GLU 61 TYR 62 ILE 63 ARG 64 LYS 65 TYR 66 LEU 67 PRO 68 ASP 69 LYS 70 LEU 71
Unit 4	MET 25 GLY 26 ASP 27 LYS 28 THR 29 VAL 30 ARG 31 VAL 32 ARG 33 ALA 34 ASP 35 LEU 36 HIS 37 HIS 38 ILE 39 ILE 40 LYS 41 ILE 42 GLU 43 THR 44 ALA 45 LYS 46 ASN 47 GLY 48 GLY 49 ASN 50 VAL 51 LYS 52 GLU 53 VAL 54 MET 55 ASP 56 GLN 57 ALA 58 LEU 59 GLU 60 GLU 61 TYR 62 ILE 63 ARG 64 LYS 65 TYR 66 LEU 67 PRO 68 ASP 69 LYS 70 LEU 71

Other macromolecules

Unit 5	DG 2 DA 3 DA 4 DT 5 DC 6 DA 7 DC 8 DA 9 DA 10 DA 11 DT 12 DC 13 DA 14 DC 15 DA 16 DA 17 DG 18
Unit 6	DT 22 DT 23 DG 24 DT 25 DG 26 DA 27 DT 28 DT 29 DT 30 DG 31 DT 32 DG 33 DA 34 DT 35 DT 36 DC 37 DG 38
Unit 7	DG 1 DA 2 DA 3 DT 4 DC 5 DA 6 DC 7 DA 8 DA 9 DG 10 DT 11 DC 12 DA 13 DC 14 DA 15 DA 16 DG 17 DC 18
Unit 8	DC 21 DT 22 DT 23 DG 24 DT 25 DG 26 DA 27 DC 28 DT 29 DT 30 DG 31 DT 32 DG 33 DA 34 DT 35 DT 36 DC 37 DG 38