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CATH Superfamily 2.40.170.20

TonB-dependent receptor, beta-barrel domain

The name of this superfamily has been modified since the most recent official CATH+ release (v4_4_0). At the point of the last release, this superfamily was named:

"
TonB-dependent receptor, beta-barrel domain
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.

Browse Functional Families

ID Function Family (FunFam) Name Total Sequences Enzyme? Structure? Structural Representative PDB Sites? Alignment Diversity (0-100)
1
Vitamin B12 transporter BtuB
124
3D
 3rgnA02 - 36.7
2
Colicin I TonB-dependent receptor
113
3D
 1fepA02 - 83.2
3
Ferrichrome outer membrane transporter/phage receptor
89
3D
 4cu4A02 - 30.1
4
FhuE outer membrane receptor
54 - - 17.4
5
TonB-dependent siderophore receptor
40
3D
 3qlbB02 - 96.9
6
Catecholate siderophore receptor fiu
37 - - 3.7
9
Fe
3+
26
3D
 1po3B02 - 30.6
7
Ferric aerobactin receptor
25 - - 85.7
8
TonB-linked outer membrane protein, SusC/RagA family
23 - - 66.1
57
Ferripyoverdine receptor
23
3D
 5odwB03 - 0.0
10
TonB-linked outer membrane protein, SusC/RagA family
16 - - 9.3
11
Ferrioxamine B receptor
15 - - 1.0
12
TonB-dependent receptor
13 - - 14.8
13
SusC/RagA family TonB-linked outer membrane protein
12 - - 70.6
14
TonB-dependent haem/haemoglobin receptor
11 - - 90.5
15
TonB-dependent siderophore receptor
10 - - 13.0
18
Carboxypeptidase regulatory-like domain protein
9 - - 0.0
17
TonB-dependent siderophore receptor
9 - - 0.2
16
Iron-regulated outer membrane virulence protein
9 - - 34.7
19
TonB-dependent siderophore receptor
8 - - 12.8
25
Fe
III
8
3D
 1xkwA02 - 0.0
29
SusC/RagA family TonB-linked outer membrane protein
7 - - 24.2
20
TonB-dependent receptor
7 - - 5.3
26
Putative hydroxamate-type ferrisiderophore receptor
7 - - 0.2
21
Vitamin B12 transporter BtuB
7 - - 0.0
27
Heme transport protein HutA
7 - - 2.0
22
TonB-dependent heme receptor HutR
7 - - 0.2
23
TonB-dependent siderophore receptor
7 - - 7.0
28
Outer membrane protein
7 - - 2.1
30
Outer membrane cobalamin receptor protein
7 - - 10.4
24
TonB-dependent siderophore receptor
7 - - 0.6
31
TonB-dependent heme receptor HasR
6 - - 0.7
33
TonB-dependent siderophore receptor
6 - - 8.0
35
Colicin I receptor
6 - - 8.2
32
SusC/RagA family TonB-linked outer membrane protein
6 - - 0.0
34
SusC/RagA family TonB-linked outer membrane protein
6 - - 0.0
39
TonB-dependent siderophore receptor
5 - - 6.2
36
TonB-dependent vitamin B12 receptor
5 - - 32.3
40
Transferrin-binding protein 1 Tbp1
5 - - 8.7
37
Iron-regulated outer membrane protein
5 - - 3.2
41
Hemin receptor
5 - - 0.0
43
Uncharacterized protein
5 - - 78.0
44
SusC homolog
5 - - 61.1
38
SusC/RagA family TonB-linked outer membrane protein
5 - - 1.4
42
TonB-linked outer membrane protein, SusC/RagA family
5 - - 0.0
48
Ferrichrome iron receptor
4 - - 6.6
55
Heme receptor HasR
4 - - 0.0
49
TonB-dependent receptor
4 - - 0.0
50
Iron
III
4 - - 1.1
56
Ferrioxamine receptor FoxA
4 - - 0.0
51
SusC/RagA family TonB-linked outer membrane protein
4 - - 0.0
46
Ferric siderophore receptor protein
4 - - 2.6
45
TonB-dependent outer membrane receptor
4 - - 2.9
52
Outer membrane receptor for ferrienterochelin and colicins
4 - - 0.6
53
Outer membrane cobalamin receptor protein
4 - - 5.0
47
TonB-dependent siderophore receptor
4 - - 1.7
54
SusC/RagA family TonB-linked outer membrane protein
4 - - 3.7
61
Ferripyoverdine receptor
3 - - 0.0
68
SusC homolog
3 - - 0.0
60
TonB-dependent Receptor Plug Domain protein
3 - - 2.2
69
SusC homolog
3 - - 0.0
63
Ferripyoverdine receptor
3 - - 1.3
62
TonB dependent receptor
3 - - 0.4
70
TonB-dependent receptor
3 - - 0.0
58
TonB-dependent siderophore receptor
3 - - 1.0
64
TonB-dependent outer membrane receptor
3 - - 0.2
65
Ferrichrome-iron receptor 3
3 - - 0.0
66
Probable TonB-dependent receptor
3 - - 1.5
59
Ferric siderophore receptor protein
3 - - 0.0
67
TonB-dependent receptor
3 - - 7.5
78
TonB-dependent siderophore receptor
2 - - 6.5
89
Vitamin B12 transporter BtuB
2 - - 0.0
91
SusC homolog
2 - - 0.0
80
SusC/RagA family TonB-linked outer membrane protein
2 - - 0.0
92
Transporter, outer membrane receptor
OMR
2 - - 0.0
82
Transporter, outer membrane receptor
OMR
2 - - 0.0
90
TonB-dependent receptor
2 - - 0.0
81
SusC/RagA family TonB-linked outer membrane protein
2 - - 0.0
76
Probable outer membrane receptor for iron transport
2 - - 0.0
84
Putative TonB-dependent outer membrane receptor protein
2 - - 0.0
77
Transporter, outer membrane receptor
OMR
2 - - 0.0
79
Iron
III FecA
2 - - 6.8
93
Transporter, outer membrane receptor
OMR
2 - - 0.0
83
TonB-dependent receptor
2 - - 0.0
71
SusC homolog
2 - - 20.9
96
SusC/RagA family TonB-linked outer membrane protein
2 - - 0.0
85
SusC/RagA family TonB-linked outer membrane protein
2 - - 0.0
74
Ligand-gated TonB-dependent outer membrane channel
2 - - 0.0
94
Outer membrane receptor for ferric iron uptake
2 - - 0.0
95
TonB-dependent receptor
2 - - 0.0
86
Transporter, outer membrane receptor
OMR
2 - - 0.0
75
SusC/RagA family TonB-linked outer membrane protein
2 - - 0.0
87
TonB dependent receptor
2 - - 0.0
72
Hemin receptor
2 - - 7.5
73
Probable TonB-dependent receptor
2 - - 0.0
88
SusC homolog
2 - - 0.0
112
SusC homolog
1 - - 0.0
128
1 - - 0.0
105
TonB-dependent ferric putrebactin siderophore receptor PutA
1 - - 0.0
111
SusC homolog
1 - - 0.0
129
Second ferric pyoverdine receptor FpvB
1 - - 0.0
124
Probable TonB-dependent receptor
1 - - 0.0
113
SusC homolog
1 - - 0.0
99
Transporter, outer membrane receptor
OMR
1 - - 0.0
131
1 - - 0.0
119
Putative ferric aerobactin receptor
1 - - 0.0
110
TonB-dependent receptor SusC
1 - - 0.0
102
Outer membrane receptor for Fe3+-dicitrate/TonB-dependent receptor
1 - - 0.0
125
TonB-dependent receptor
1 - - 0.0
118
SusC homolog
1 - - 0.0
100
1 - - 0.0
126
1 - - 0.0
103
SusC homolog
1 - - 0.0
127
1 - - 0.0
101
SusC homolog
1 - - 0.0
116
SusC homolog
1 - - 0.0
108
TonB-dependent receptor
1 - - 0.0
117
SusC homolog
1 - - 0.0
120
SusC homolog
1 - - 0.0
109
Outer membrane protein Omp121
1 - - 0.0
106
SusC homolog
1 - - 0.0
121
SusC homolog
1 - - 0.0
98
Ligand-gated TonB-dependent outer membrane channel
1 - - 0.0
107
TonB-dependent siderophore receptor
1 - - 0.0
130
Transporter, outer membrane receptor
OMR
1 - - 0.0
115
Putative outer membrane protein, probably involved in nutrient binding
1 - - 0.0
122
Transporter, outer membrane receptor
OMR
1 - - 0.0
114
SusC homolog
1 - - 0.0
104
TonB-dependent siderophore receptor
1 - - 0.0
97
TonB-dependent receptor-related protein
1 - - 0.0
123
SusC homolog
1 - - 0.0
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