3RDM - Sequence, Chains, Asymmetric and Biological Units

• Title: CRYSTAL STRUCTURE OF R7-2 STREPTAVIDIN COMPLEXED WITH BIOTIN
• Keywords: STREPTAVIDIN VARIANTS, IMPROVED DESTHIOBIOTIN BINDING, OPENE DESTABILIZATION, BIOTIN BINDING PROTEIN
• Experiment: X-ray diffraction
• Number of Models: 1

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

Asymmetric unit from PDB

Unit	Type	Name	Chain ID	Residues	Atoms	Hetatoms
1	Protein	STREPTAVIDIN	A	123	898	0
2	Ligand	STREPTAVIDIN	A	2	0	32
3	Water			127	0	127
total				252	898	159

Proteins

Unit 1

THR 25 ALA 26 GLU 27 ALA 28 GLY 29 ILE 30 THR 31 GLY 32 THR 33 TRP 34 TYR 35 ASN 36 GLN 37 LEU 38 GLY 39 SER 40 THR 41 LEU 42 ILE 43 VAL 44 THR 45 ALA 46 GLY 47 ALA 48 ASP 49 GLY 50 ALA 51 LEU 52 THR 53 GLY 54 THR 55 TYR 56 GLU 57 SER 58 ALA 59 VAL 60 GLY 61 ASN 62 ALA 63 GLU 64 GLY 65 SER 66 TYR 67 VAL 68 LEU 69 THR 70 GLY 71 ARG 72 TYR 73 ASP 74 SER 75 ALA 76 PRO 77 ALA 78 THR 79 ASP 80 GLY 81 SER 82 GLY 83 THR 84 ALA 85 LEU 86 GLY 87 TRP 88 THR 89 VAL 90 ALA 91 TRP 92 LYS 93 ASN 94 ASN 95 TYR 96 ARG 97 ASN 98 ALA 99 HIS 100 SER 101 ALA 102 SER 103 THR 104 TRP 105 SER 106 GLY 107 GLN 108 TYR 109 VAL 110 GLY 111 GLY 112 ALA 113 GLU 114 ALA 115 ARG 116 ILE 117 ASN 118 THR 119 GLN 120 VAL 121 LEU 122 THR 123 THR 124 SER 125 GLY 126 THR 127 THR 128 GLU 129 ALA 130 ASN 131 ALA 132 TRP 133 LYS 134 SER 135 THR 136 LEU 137 VAL 138 GLY 139 HIS 140 ASP 141 THR 142 PHE 143 THR 144 LYS 145 VAL 146 LYS 147

Ligands

Unit 2

BTN 300 1PE 700