UniProtKB - Q5N595 (KAIB_SYNP6)
Protein
Circadian clock protein KaiB
Gene
kaiB
Organism
Synechococcus sp. (strain ATCC 27144 / PCC 6301 / SAUG 1402/1) (Anacystis nidulans)
Status
Functioni
Component of the KaiABC clock protein complex, which constitutes the main circadian regulator in cyanobacteria. The KaiABC complex may act as a promoter-non-specific transcription regulator that represses transcription, possibly by acting on the state of chromosome compaction. In the complex, it decreases the phosphorylation status of KaiC. It has no effect on KaiC by itself, but instead needs the presence of both KaiA and KaiC, suggesting that it acts by antagonizing the interaction between KaiA and KaiC.UniRule annotation
GO - Biological processi
- circadian rhythm Source: UniProtKB-UniRule
- negative regulation of phosphorylation Source: InterPro
Keywordsi
Biological process | Biological rhythms |
Enzyme and pathway databases
BioCyci | SELO269084:G1G2F-352-MONOMER |
Names & Taxonomyi
Protein namesi | Recommended name: Circadian clock protein KaiBUniRule annotation |
Gene namesi | Name:kaiBUniRule annotation Ordered Locus Names:syc0333_d |
Organismi | Synechococcus sp. (strain ATCC 27144 / PCC 6301 / SAUG 1402/1) (Anacystis nidulans) |
Taxonomic identifieri | 269084 [NCBI] |
Taxonomic lineagei | Bacteria › Cyanobacteria › Synechococcales › Synechococcaceae › Synechococcus › |
Proteomesi |
|
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_1000070461 | 1 – 102 | Circadian clock protein KaiBAdd BLAST | 102 |
Interactioni
Subunit structurei
Homodimer.
Component of the KaiABC complex, at least composed of a KaiC homohexamer, a KaiB dimer and two KaiA dimers. The KaiABC complex also interacts with SasA.
UniRule annotationProtein-protein interaction databases
STRINGi | 269084.syc0333_d |
Family & Domainsi
Sequence similaritiesi
Belongs to the KaiB family.UniRule annotation
Phylogenomic databases
eggNOGi | COG4251, Bacteria |
OMAi | TPNSMRA |
Family and domain databases
CDDi | cd02978, KaiB_like, 1 hit |
Gene3Di | 3.40.30.10, 1 hit |
HAMAPi | MF_01835, KaiB, 1 hit |
InterProi | View protein in InterPro IPR013474, Circ_KaiB IPR039022, KaiB-like IPR011649, KaiB_domain IPR036249, Thioredoxin-like_sf |
PANTHERi | PTHR41709, PTHR41709, 1 hit |
Pfami | View protein in Pfam PF07689, KaiB, 1 hit |
SMARTi | View protein in SMART SM01248, KaiB, 1 hit |
SUPFAMi | SSF52833, SSF52833, 1 hit |
TIGRFAMsi | TIGR02654, circ_KaiB, 1 hit |
i Sequence
Sequence statusi: Complete.
Q5N595-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MSPRKTYILK LYVAGNTPNS VRALKTLKNI LEVEFQGVYA LKVIDVLKNP
60 70 80 90 100
QLAEEDKILA TPTLAKVLPL PVRRIIGDLS DREKVLIGLD LLYGELQDSD
DF
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AP008231 Genomic DNA Translation: BAD78523.1 |
RefSeqi | WP_011242647.1, NC_006576.1 |
Genome annotation databases
EnsemblBacteriai | BAD78523; BAD78523; syc0333_d |
KEGGi | syc:syc0333_d |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AP008231 Genomic DNA Translation: BAD78523.1 |
RefSeqi | WP_011242647.1, NC_006576.1 |
3D structure databases
SMRi | Q5N595 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 269084.syc0333_d |
Genome annotation databases
EnsemblBacteriai | BAD78523; BAD78523; syc0333_d |
KEGGi | syc:syc0333_d |
Phylogenomic databases
eggNOGi | COG4251, Bacteria |
OMAi | TPNSMRA |
Enzyme and pathway databases
BioCyci | SELO269084:G1G2F-352-MONOMER |
Family and domain databases
CDDi | cd02978, KaiB_like, 1 hit |
Gene3Di | 3.40.30.10, 1 hit |
HAMAPi | MF_01835, KaiB, 1 hit |
InterProi | View protein in InterPro IPR013474, Circ_KaiB IPR039022, KaiB-like IPR011649, KaiB_domain IPR036249, Thioredoxin-like_sf |
PANTHERi | PTHR41709, PTHR41709, 1 hit |
Pfami | View protein in Pfam PF07689, KaiB, 1 hit |
SMARTi | View protein in SMART SM01248, KaiB, 1 hit |
SUPFAMi | SSF52833, SSF52833, 1 hit |
TIGRFAMsi | TIGR02654, circ_KaiB, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | KAIB_SYNP6 | |
Accessioni | Q5N595Primary (citable) accession number: Q5N595 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | February 5, 2008 |
Last sequence update: | February 1, 2005 | |
Last modified: | December 2, 2020 | |
This is version 90 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |