The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was named:

"
TonB-dependent receptor, plug 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.
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FunFam 4: Colicin I TonB-dependent receptor

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 2 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Siderophore transmembrane transporter activity GO:0015343
Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: siderophore-iron(out) + H+(out) = siderophore-iron(in) + H+(in).
31 P17315 (/IMP) P17315 (/IMP) P17315 (/IMP) P17315 (/IMP) P17315 (/IMP) P17315 (/IMP) P17315 (/IMP) P17315 (/IMP) P17315 (/IMP) P17315 (/IMP)
(21 more)
Colicin transmembrane transporter activity GO:0042912
Enables the transfer of a colicin from one side of a membrane to the other. Colicins are a group of antibiotics produced by E. coli and related species that are encoded by a group of naturally occurring plasmids, e.g. Col E1.
31 P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA)
(21 more)

There are 1 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Iron import into cell GO:0033212
The directed movement of iron ions from outside of a cell into the cytoplasmic compartment. This may occur via transport across the plasma membrane or via endocytosis.
31 P17315 (/IEP) P17315 (/IEP) P17315 (/IEP) P17315 (/IEP) P17315 (/IEP) P17315 (/IEP) P17315 (/IEP) P17315 (/IEP) P17315 (/IEP) P17315 (/IEP)
(21 more)

There are 1 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Cell outer membrane GO:0009279
A lipid bilayer that forms the outermost membrane of the cell envelope; enriched in polysaccharide and protein; the outer leaflet of the membrane contains specific lipopolysaccharide structures.
31 P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA) P17315 (/IDA)
(21 more)
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