Protein Domain : IPR004815

Type:  Family Name:  Lon protease, bacterial/eukaryotic-type
Description:  Lon protease belongs to the S16 peptidase family and is an ATP-dependent serine protease that mediates the selective degradation of mutant and abnormal proteins, as well as certain short-lived regulatory proteins. It is required for cellular homeostasis and for survival from DNA damage and developmental changes induced by stress []. In pathogenic bacteria, it is required for the expression of virulence genes that promote cell infection [].Lon (La) protease was the first ATP-dependent protease to be purified from E. coli [, , , ]. The enzyme is a homotetramer of 87kDa subunits, with one proteolytic and one ATP-binding site per monomer, making it structurally less complex than other known ATP-dependent proteases []. Despite this relative structural simplicity, Lon recognises its substrates directly, without delegating the task of substrate recognition to other enzymes []. This signature defines the bacterial and eukaryotic lon proteases. This family of sequences does not include the archaeal lon homologues, . In the eukaryotes the majority of the proteins are located in the mitochondrial matrix [, ]. The yeast homologue, Pim1, is required for mitochondrial function and is constitutively expressed, but is increased after thermal stress, suggesting that Pim1 may play a role in the heat shock response []. Short Name:  Lon_bac/euk-typ

1 Child Features

DB identifier Type Name
IPR027543 Family Lon protease, bacterial

5 Contains

DB identifier Type Name
IPR020568 Domain Ribosomal protein S5 domain 2-type fold
IPR003959 Domain ATPase, AAA-type, core
IPR003111 Domain ATP-dependent protease La (LON), substrate-binding domain
IPR008269 Domain Peptidase S16, Lon C-terminal
IPR008268 Active_site Peptidase S16, active site

2 Cross Referencess

Identifier
PIRSF001174
TIGR00763

0 Found In

3 GO Annotations

GO Term Gene Name
GO:0004176 IPR004815
GO:0005524 IPR004815
GO:0006508 IPR004815

3 Ontology Annotations

GO Term Gene Name
GO:0004176 IPR004815
GO:0005524 IPR004815
GO:0006508 IPR004815

1 Parent Features

DB identifier Type Name
IPR027065 Family Lon protease

3256 Proteins

DB identifier UniProt Accession Secondary Identifier Organism Name Length
141788 D8QWE3 PAC:15412071 Selaginella moellendorffii 879  
30423 D8QXF0 PAC:15414090 Selaginella moellendorffii 928  
evm.model.supercontig_48.159 PAC:16420794 Carica papaya 868  
evm.model.supercontig_76.10 PAC:16425976 Carica papaya 800  
29628.m000786 B9SS30 PAC:16803929 Ricinus communis 890  
Cucsa.321520.1 A0A0A0L5B9 PAC:16977510 Cucumis sativus 886  
Cucsa.321520.2 PAC:16977511 Cucumis sativus 756  
Cucsa.090710.1 PAC:16957342 Cucumis sativus 972  
orange1.1g005548m A0A067GSQ9 PAC:18108181 Citrus sinensis 691  
orange1.1g004834m A0A067EFQ2 PAC:18123513 Citrus sinensis 728  
orange1.1g003349m A0A067EC00 PAC:18123512 Citrus sinensis 828  
AT5G26860.1 P93655 PAC:19670419 Arabidopsis thaliana 940  
AT5G47040.1 O64948 PAC:19667678 Arabidopsis thaliana 888  
AT3G05790.1 Q9M9L7 PAC:19659523 Arabidopsis thaliana 942  
AT3G05780.1 Q9M9L8 PAC:19665240 Arabidopsis thaliana 924  
Thhalv10022093m PAC:20182885 Eutrema salsugineum 843  
Thhalv10000767m V4N3J1 PAC:20202645 Eutrema salsugineum 887  
Thhalv10003617m V4KQD6 PAC:20199596 Eutrema salsugineum 935  
Ciclev10000120m V4TB01 PAC:20786751 Citrus clementina 1043  
Ciclev10018825m V4TTY1 PAC:20806462 Citrus clementina 863  
Ciclev10018797m V4TJ04 PAC:20806461 Citrus clementina 886  
Lus10001084 PAC:23148922 Linum usitatissimum 609  
Lus10010919 PAC:23172473 Linum usitatissimum 914  
Lus10003009 PAC:23176141 Linum usitatissimum 961  
Lus10040131 PAC:23174025 Linum usitatissimum 897  
Lus10031414 PAC:23155964 Linum usitatissimum 983  
Lus10011038 PAC:23148691 Linum usitatissimum 1091  
Potri.001G148400.2 B9MTW6 PAC:27041083 Populus trichocarpa 893  
Potri.001G148400.1 PAC:27041082 Populus trichocarpa 896  
Potri.001G148400.3 B9MTW6 PAC:27041084 Populus trichocarpa 893  

9 Publications

First Author Title Year Journal Volume Pages PubMed ID
            8276800
            8248235
            9620272
            9425059
            8294008
            3042779
            8226758
            10672180
            17216028