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kaiA

Gene
kaiA
Protein
Circadian clock protein KaiA
Organism
Acaryochloris marina (strain MBIC 11017)
Length
299 amino acids
Function
Component of the KaiABC clock protein complex, which constitutes the main circadian regulator in cyanobacteria. The KaiABC complex may act as a promoter-nonspecific transcription regulator that represses transcription, possibly by acting on the state of chromosome compaction. In the complex, it enhances the phosphorylation status of KaiC. In contrast, the presence of KaiB in the complex decreases the phosphorylation status of KaiC, suggesting that KaiB acts by antagonizing the interaction between KaiA and KaiC. A KaiA dimer is sufficient to enhance KaiC hexamer phosphorylation (By similarity).
Mass
34.921 kDa
Sequence
MTLSQTAVSRPQIFICTLLSSESLVDLYTQILEGDRYSLVHATYDNFLEIVEQGKHRIDCLIFEKNAALPKVVSHLHREAILLPAVLLQVEESVEKTSQPNSADRDPQQDSYYHIAEVIVDHDQEDILSSIDCAIAQFLQLSKACRLPTRLQKKYADEAIQDNLATQQQRLSQKLKERLGYLGVYYKRNPQQFFHKLTEEEQTDYLVTLKRDYRDIILNYFRQDSSVNQEIDDFVTQIFFADISILKILEIHMELMDAFAKKLKLEGRNEDILLDYRLTLIDIMAHLCEMYRRSIPKTR

Gene
kaiA
Protein
Circadian clock protein KaiA
Organism
Synechococcus sp. (strain ATCC 27264 / PCC 7002 / PR-6)
Length
299 amino acids
Function
Component of the KaiABC clock protein complex, which constitutes the main circadian regulator in cyanobacteria. The KaiABC complex may act as a promoter-nonspecific transcription regulator that represses transcription, possibly by acting on the state of chromosome compaction. In the complex, it enhances the phosphorylation status of KaiC. In contrast, the presence of KaiB in the complex decreases the phosphorylation status of KaiC, suggesting that KaiB acts by antagonizing the interaction between KaiA and KaiC. A KaiA dimer is sufficient to enhance KaiC hexamer phosphorylation (By similarity).
Mass
34.717 kDa
Sequence
MVSKLSLYLVTPPGFQPGKIEAQLIGDRYQIKLLDYGQKFLAFLEANKEQIDCLVVVQGKENQDYFECLTQSGILLPCVFLGPTTACEISQEDVSEQLYHSAEKYLDFANLENLSLTIDQAIAQFLHLAPSCALSDKPQDPHHSDPDKTHQAFLLLQQRRLAEKLRERLGYLGVYYKRNPKYFYRSLSPEEQQEFREQFVADYRDIVLSYFSGDLPTNQAIDQFVNQAFFADVSVSYILETHMKLMDEFAQQLKLEGRSEEILLDYRLTLIDIVAHLCEMYRRSIPREDLPFELLFRID

Gene
kaiA
Protein
Circadian clock protein KaiA
Organism
Synechocystis sp. (strain PCC 6803 / Kazusa)
Length
299 amino acids
Function
Component of the KaiABC clock protein complex, which constitutes the main circadian regulator in cyanobacteria. The KaiABC complex may act as a promoter-nonspecific transcription regulator that represses transcription, possibly by acting on the state of chromosome compaction. In the complex, it enhances the phosphorylation status of KaiC. In contrast, the presence of KaiB in the complex decreases the phosphorylation status of KaiC, suggesting that KaiB acts by antagonizing the interaction between KaiA and KaiC. A KaiA dimer is sufficient to enhance KaiC hexamer phosphorylation (By similarity).
Mass
34.894 kDa
Sequence
MQSPLSLCLFAPEHVAHRLRSIFQGDRHYLSTFQALDDFCAFLEDKPERIDCLLVYYEANSLPVLNRLYEQGRLLPIILLEPSPSALAKTTDEHPTIVYHNAEIHLPESQWSELPTVVDRAIAHYLHLGPICTLPNQTETIPAPIVDESSQSFLLLQQRRLADKLKERLGYLGVYYKRKPSHFYRNFSPQEKQEYLEDLSSQYREIILSYFSDEGTVNDLLDQFVNQAFFADLAISQILEIHMELMDEFSQHLKLEGRSEEVLLDYRLVLIDILAHLGEMYRRSIPREDIPFDVYYQTD

Gene
kaiA
Protein
Circadian clock protein KaiA
Organism
Synechococcus sp. (strain WH8102)
Length
296 amino acids
Function
Component of the KaiABC clock protein complex, which constitutes the main circadian regulator in cyanobacteria. The KaiABC complex may act as a promoter-nonspecific transcription regulator that represses transcription, possibly by acting on the state of chromosome compaction. In the complex, it enhances the phosphorylation status of KaiC. In contrast, the presence of KaiB in the complex decreases the phosphorylation status of KaiC, suggesting that KaiB acts by antagonizing the interaction between KaiA and KaiC. A KaiA dimer is sufficient to enhance KaiC hexamer phosphorylation (By similarity).
Mass
33.387 kDa
Sequence
MARPGLTIALLLTTPNLVDACQQWLPDTRYHSIVLSGPHQGQEQLDLVSTLEAQQEEIDAVVVEQQLLDASSRDQLLGRGLLFPAVVVGEMKGHVDYHAEELHLAEDQLAQLGYTVDAAISRFLRQGRADGRSDDDGLASVDKLSRRLQERLGYLGVFYKRDPSRFLGSLPTEERRELLESLQRTYRDLLISYFSDPAASNQALESFVNTAFFSDLPITRTVDIHVDQIDEFWKQLRLEGNKSEFLQDYRLALLDVMAHLCEMYRRSIPPDIPLSGLASGRHRREADLPDAPEVSS

Gene
kaiA
Protein
Circadian clock protein KaiA
Organism
Synechococcus elongatus (strain PCC 7942)
Length
284 amino acids
Function
Component of the KaiABC clock protein complex, which constitutes the main circadian regulator in cyanobacteria. The KaiABC complex may act as a promoter-nonspecific transcription regulator that represses transcription, possibly by acting on the state of chromosome compaction. In the complex, it enhances the phosphorylation status of KaiC. In contrast, the presence of KaiB in the complex decreases the phosphorylation status of KaiC, suggesting that KaiB acts by antagonizing the interaction between KaiA and KaiC. A KaiA dimer is sufficient to enhance KaiC hexamer phosphorylation.
Mass
32.632 kDa
Sequence
MLSQIAICIWVESTAILQDCQRALSADRYQLQVCESGEMLLEYAQTHRDQIDCLILVAANPSFRAVVQQLCFEGVVVPAIVVGDRDSEDPDEPAKEQLYHSAELHLGIHQLEQLPYQVDAALAEFLRLAPVETMADHIMLMGANHDPELSSQQRDLAQRLQERLGYLGVYYKRDPDRFLRNLPAYESQKLHQAMQTSYREIVLSYFSPNSNLNQSIDNFVNMAFFADVPVTKVVEIHMELMDEFAKKLRVEGRSEDILLDYRLTLIDVIAHLCEMYRRSIPRET

Gene
kaiA
Protein
Circadian clock protein KaiA
Organism
Thermosynechococcus elongatus (strain BP-1)
Length
283 amino acids
Function
Component of the KaiABC clock protein complex, which constitutes the main circadian regulator in cyanobacteria. The KaiABC complex may act as a promoter-nonspecific transcription regulator that represses transcription, possibly by acting on the state of chromosome compaction. In the complex, it enhances the phosphorylation status of KaiC. In contrast, the presence of KaiB in the complex decreases the phosphorylation status of KaiC, suggesting that KaiB acts by antagonizing the interaction between KaiA and KaiC. A KaiA dimer is sufficient to enhance KaiC hexamer phosphorylation.
Mass
32.368 kDa
Sequence
MAQSTALTICGLVYSPAIGQELVRLHTSDIDELVYFSSEREFCNYLEARRNSIACLILEWGEGTPQIITYLHHSATLLPAILIFPAAPAPPPAGPHYHIAEVILTTDQLDQLNRQIEEAITGFVKLCPGCAVPPHVLFRLPALKESSNVDPQHRLSQKLKERLGYLGVYYKRDTAFFFRRMSPADKRKLLDELRSIYRTIVLEYFNTDAKVNERIDEFVSKAFFADISVSQVLEIHVELMDTFSKQLKLEGRSEDILLDYRLTLIDVIAHLCEMYRRSIPREV

Gene
kaiA
Protein
Circadian clock protein KaiA
Organism
Thermosynechococcus vulcanus
Length
283 amino acids
Function
Component of the KaiABC clock protein complex, which constitutes the main circadian regulator in cyanobacteria. The KaiABC complex may act as a promoter-nonspecific transcription regulator that represses transcription, possibly by acting on the state of chromosome compaction. In the complex, it enhances the phosphorylation status of KaiC. In contrast, the presence of KaiB in the complex decreases the phosphorylation status of KaiC, suggesting that KaiB acts by antagonizing the interaction between KaiA and KaiC. A KaiA dimer is sufficient to enhance KaiC hexamer phosphorylation (By similarity).
Mass
32.354 kDa
Sequence
MAQSTALTICGLVYSPAIGQELVRLHTSDIDELVYFSSEREFCNYLEARRNSVACLILEWGEGTPQIITYLHHSATLLPAILIFPAAPAPPPAGPHYHIAEVILTTDQLDQLNRQIEEAITGFVKLCPGCAVPPHVLFRLPALKESSNVDPQHRLSQKLKERLGYLGVYYKRDTAFFFRRMSPADKRKLLDELRSIYRTIVLEYFNTDAKVNERIDEFVSKAFFADISVSQVLEIHVELMDTFSKQLKLEGRSEDILLDYRLTLIDVIAHLCEMYRRSIPREV

Gene
kaiA
Protein
Circadian clock protein KaiA
Organism
Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)
Length
102 amino acids
Function
Component of the KaiABC clock protein complex, which constitutes the main circadian regulator in cyanobacteria. The KaiABC complex may act as a promoter-nonspecific transcription regulator that represses transcription, possibly by acting on the state of chromosome compaction. In the complex, it enhances the phosphorylation status of KaiC. In contrast, the presence of KaiB in the complex decreases the phosphorylation status of KaiC, suggesting that KaiB acts by antagonizing the interaction between KaiA and KaiC. A KaiA dimer is sufficient to enhance KaiC hexamer phosphorylation (By similarity).
Mass
11.965 kDa
Sequence
MTQEVDQQILLQQLKSDYRQILLSYFTTDKALKEKIDKFINAVFCANIPVPEIIEIHMELIDEFSKQLRLEGRGDETLMDYRLTLIDILAHLCEAYRGAIFK