UniProtKB - Q9RGG4 (PTRB_LACCA)
Protein
PTS system sorbose-specific EIIB component
Gene
sorB
Organism
Lactobacillus casei
Status
Functioni
The phosphoenolpyruvate-dependent sugar phosphotransferase system (PTS), a major carbohydrate active transport system, catalyzes the phosphorylation of incoming sugar substrates concomitant with their translocation across the cell membrane. The enzyme II SorABCD PTS system is involved in L-sorbose transport.1 Publication
Catalytic activityi
- keto-L-sorbose(out) + Nπ-phospho-L-histidyl-[protein] = L-histidyl-[protein] + L-sorbose 1-phosphate(in)1 PublicationEC:2.7.1.2061 Publication
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 14 | Pros-phosphohistidine intermediate1 Publication | 1 |
GO - Molecular functioni
- kinase activity Source: UniProtKB-KW
- protein-N(PI)-phosphohistidine-sugar phosphotransferase activity Source: InterPro
GO - Biological processi
- phosphoenolpyruvate-dependent sugar phosphotransferase system Source: UniProtKB-KW
Keywordsi
Molecular function | Kinase, Transferase |
Biological process | Phosphotransferase system, Sugar transport, Transport |
Protein family/group databases
TCDBi | 4.A.6.1.26, the pts mannose-fructose-sorbose (man) family |
Names & Taxonomyi
Protein namesi | Recommended name: PTS system sorbose-specific EIIB component1 PublicationAlternative name(s): EIIB-Sor1 Publication Sorbose-specific phosphotransferase enzyme IIB component1 Publication (EC:2.7.1.2061 Publication) |
Gene namesi | Name:sorB1 Publication |
Organismi | Lactobacillus casei |
Taxonomic identifieri | 1582 [NCBI] |
Taxonomic lineagei | Bacteria › Firmicutes › Bacilli › Lactobacillales › Lactobacillaceae › Lacticaseibacillus |
Subcellular locationi
Cytoplasm and Cytosol
- Cytoplasm 1 Publication
Other locations
- cytoplasm Source: UniProtKB-SubCell
Keywords - Cellular componenti
CytoplasmPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000437531 | 1 – 164 | PTS system sorbose-specific EIIB componentAdd BLAST | 164 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 14 | Phosphohistidine; by EIIAPROSITE-ProRule annotation1 Publication | 1 |
Keywords - PTMi
PhosphoproteinPTM databases
iPTMneti | Q9RGG4 |
Expressioni
Inductioni
Induced by L-sorbose and repressed by D-glucose.1 Publication
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 1 – 164 | PTS EIIB type-4PROSITE-ProRule annotationAdd BLAST | 164 |
Domaini
The PTS EIIB type-4 domain is phosphorylated by phospho-EIIA on a histidyl residue. Then, it transfers the phosphoryl group to the sugar substrate concomitantly with the sugar uptake processed by the PTS EIIC type-4 domain.PROSITE-ProRule annotation
Phylogenomic databases
eggNOGi | COG3444, Bacteria |
Family and domain databases
CDDi | cd00001, PTS_IIB_man, 1 hit |
Gene3Di | 3.40.35.10, 1 hit |
InterProi | View protein in InterPro IPR004720, PTS_IIB_sorbose-sp IPR036667, PTS_IIB_sorbose-sp_sf IPR018455, PTS_IIB_sorbose-sp_subgr |
Pfami | View protein in Pfam PF03830, PTSIIB_sorb, 1 hit |
SUPFAMi | SSF52728, SSF52728, 1 hit |
TIGRFAMsi | TIGR00854, pts-sorbose, 1 hit |
PROSITEi | View protein in PROSITE PS51101, PTS_EIIB_TYPE_4, 1 hit |
i Sequence
Sequence statusi: Complete.
Q9RGG4-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MIITLARVDD RLIHGQVTTV WSKESNADRI IIVSSEVYKD DIRKTLLKQA
60 70 80 90 100
APPGMKVNIV DVPKAIAVYN NPKYQNEKVF YLFTNPREVV DLVKGGIPLE
110 120 130 140 150
KLNIGGMQFK QGKTQISKAV SLDADDVAAF RELHQLGVKL DLRVVKTDPS
160
SDILAKIDEV FGKE
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF129168 Genomic DNA Translation: AAF24132.1 |
RefSeqi | WP_003586823.1, NZ_MODT01000074.1 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF129168 Genomic DNA Translation: AAF24132.1 |
RefSeqi | WP_003586823.1, NZ_MODT01000074.1 |
3D structure databases
SMRi | Q9RGG4 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 543734.LCABL_04260 |
Protein family/group databases
TCDBi | 4.A.6.1.26, the pts mannose-fructose-sorbose (man) family |
PTM databases
iPTMneti | Q9RGG4 |
Phylogenomic databases
eggNOGi | COG3444, Bacteria |
Family and domain databases
CDDi | cd00001, PTS_IIB_man, 1 hit |
Gene3Di | 3.40.35.10, 1 hit |
InterProi | View protein in InterPro IPR004720, PTS_IIB_sorbose-sp IPR036667, PTS_IIB_sorbose-sp_sf IPR018455, PTS_IIB_sorbose-sp_subgr |
Pfami | View protein in Pfam PF03830, PTSIIB_sorb, 1 hit |
SUPFAMi | SSF52728, SSF52728, 1 hit |
TIGRFAMsi | TIGR00854, pts-sorbose, 1 hit |
PROSITEi | View protein in PROSITE PS51101, PTS_EIIB_TYPE_4, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | PTRB_LACCA | |
Accessioni | Q9RGG4Primary (citable) accession number: Q9RGG4 Secondary accession number(s): F2M4V0 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | October 5, 2016 |
Last sequence update: | May 1, 2000 | |
Last modified: | February 10, 2021 | |
This is version 63 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |