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We are deeply saddened by the passing of Amos Bairoch (1957–2025), the creator of PROSITE. We wish to dedicate our latest paper, published shortly before his death, to him. He will always be a source of inspiration to us.
Our deepest condolences go out to his family and friends, and to all those who had the privilege of working with him. Rest in peace, Amos. Your work will live on long after you are gone.
Amos Bairoch

ProRule PRU01360


View rule in raw text format (no links)
PURL: https://purl.expasy.org/prosite/rule/PRU01360
General rule information [?]

Accession PRU01360
Dates 31-JAN-2023 (Created)
03-FEB-2023 (Last updated, Version 4)
Data class Domain;
Predictors PROSITE; PS52016; TONB_DEPENDENT_REC_3
Name TonB-dependent receptor proteins
Function TonB-dependent receptors (TBDRs) are transport proteins found at the outer membrane (OM) to allow Gram-negative bacteria to uptake scarce resources from competitive environments with very high affinity. All of them share the same basic architecture, a C-terminal membrane-embedded 22-strand antiparallel beta-barrel domain that is sealed by a conserved N-terminal globular 'plug' domain (also called 'cork' or 'hatch').
Scope(s) Bacteria
Example(s) Q9KVI9;

Propagated annotation [?]

Comments [?]

SUBCELLULAR LOCATIONCell outer membrane; Multi-pass membrane protein.
SIMILARITYBelongs to the TonB-dependent receptor family.

Keywords [?]


Gene Ontology [?]

GO:0009279; Cellular component:cell outer membrane

Cross-references [?]

PROSITE PS00430; TONB_DEPENDENT_REC_1; 0-1;
PROSITE PS01156; TONB_DEPENDENT_REC_2; 1;

Features [?]

From: PS52016
Key From To Description Tag Condition FTGroup
DOMAIN from 119 /note="TBDR plug #"
DOMAIN 124 to /note="TBDR beta-barrel #"

Additional information [?]

Size range 80-1001 amino acids
Related rules None
Fusion None
Repeats 1
Topology Undefined

Copyright

PROSITE is copyrighted by the SIB Swiss Institute of Bioinformatics and distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND 4.0) License, see prosite_license.html.

UniProtKB rule member sequences [?]