1SSA - Sequence, Chains, Asymmetric and Biological Units

• Title: A STRUCTURAL INVESTIGATION OF CATALYTICALLY MODIFIED F12OL A SEMISYNTHETIC RIBONUCLEASES
• Keywords: HYDROLASE(ENDORIBONUCLEASE)
• Experiment: X-ray diffraction
• Number of Models: 1

Database	ID code	Status	Coordinate files
			Header	Asymmetric unit	Biological unit
PDB	1SSA	released	available	available	Quaternary Structure Server

Asymmetric unit from PDB

Unit	Type	Name	Chain ID	Residues	Atoms	Hetatoms
1	Protein	RIBONUCLEASE A	A	113	863	0
2	Protein	RIBONUCLEASE A	B	11	85	0
3	Ligand	RIBONUCLEASE A	B	1	0	5
4	Water			103	0	103
total				228	948	108

Proteins

Unit 1

LYS 1 GLU 2 THR 3 ALA 4 ALA 5 ALA 6 LYS 7 PHE 8 GLU 9 ARG 10 GLN 11 HIS 12 MET 13 ASP 14 SER 15 SER 16 THR 17 SER 18 ALA 19 ALA 20 SER 21 SER 22 SER 23 ASN 24 TYR 25 CYS 26 ASN 27 GLN 28 MET 29 MET 30 LYS 31 SER 32 ARG 33 ASN 34 LEU 35 THR 36 LYS 37 ASP 38 ARG 39 CYS 40 LYS 41 PRO 42 VAL 43 ASN 44 THR 45 PHE 46 VAL 47 HIS 48 GLU 49 SER 50 LEU 51 ALA 52 ASP 53 VAL 54 GLN 55 ALA 56 VAL 57 CYS 58 SER 59 GLN 60 LYS 61 ASN 62 VAL 63 ALA 64 CYS 65 LYS 66 ASN 67 GLY 68 GLN 69 THR 70 ASN 71 CYS 72 TYR 73 GLN 74 SER 75 TYR 76 SER 77 THR 78 MET 79 SER 80 ILE 81 THR 82 ASP 83 CYS 84 ARG 85 GLU 86 THR 87 GLY 88 SER 89 SER 90 LYS 91 TYR 92 PRO 93 ASN 94 CYS 95 ALA 96 TYR 97 LYS 98 THR 99 THR 100 GLN 101 ALA 102 ASN 103 LYS 104 HIS 105 ILE 106 ILE 107 VAL 108 ALA 109 CYS 110 GLU 111 GLY 112 ASN 113

Unit 2

PRO 114 TYR 115 VAL 116 PRO 117 VAL 118 HIS 119 LEU 120 ASP 121 ALA 122 SER 123 VAL 124

Ligands

Unit 3

SO4 125