ID   SASA_PROM9              Reviewed;         372 AA.
AC   Q31AE8;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-DEC-2005, sequence version 1.
DT   25-MAY-2022, entry version 105.
DE   RecName: Full=Adaptive-response sensory-kinase SasA {ECO:0000255|HAMAP-Rule:MF_01837};
DE            EC=2.7.-.- {ECO:0000255|HAMAP-Rule:MF_01837};
DE   AltName: Full=Synechococcus adaptive sensor protein A {ECO:0000255|HAMAP-Rule:MF_01837};
GN   Name=sasA {ECO:0000255|HAMAP-Rule:MF_01837};
GN   OrderedLocusNames=PMT9312_1088;
OS   Prochlorococcus marinus (strain MIT 9312).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=74546;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9312;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Thiel J., Schmutz J., Larimer F.,
RA   Land M., Kyrpides N., Lykidis A., Richardson P.;
RT   "Complete sequence of Prochlorococcus marinus str. MIT 9312.";
RL   Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: May be involved in signal transduction. Participates in the
CC       KaiABC clock protein complex, which constitutes the main circadian
CC       regulator in cyanobacteria, via its interaction with KaiC. Required for
CC       robustness of the circadian rhythm of gene expression and is involved
CC       in clock outputs. {ECO:0000255|HAMAP-Rule:MF_01837}.
CC   -!- SUBUNIT: Interacts with KaiC. Participates in the KaiABC complex, whose
CC       core is composed of a KaiC homohexamer, a KaiB dimer and two KaiA
CC       dimers. {ECO:0000255|HAMAP-Rule:MF_01837}.
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DR   EMBL; CP000111; ABB50147.1; -; Genomic_DNA.
DR   RefSeq; WP_011376638.1; NC_007577.1.
DR   AlphaFoldDB; Q31AE8; -.
DR   SMR; Q31AE8; -.
DR   STRING; 74546.PMT9312_1088; -.
DR   EnsemblBacteria; ABB50147; ABB50147; PMT9312_1088.
DR   KEGG; pmi:PMT9312_1088; -.
DR   eggNOG; COG2205; Bacteria.
DR   HOGENOM; CLU_723030_0_0_3; -.
DR   OMA; AHYGQIW; -.
DR   OrthoDB; 1755994at2; -.
DR   Proteomes; UP000002715; Chromosome.
DR   GO; GO:0000155; F:phosphorelay sensor kinase activity; IEA:InterPro.
DR   GO; GO:0007623; P:circadian rhythm; IEA:UniProtKB-UniRule.
DR   CDD; cd00082; HisKA; 1.
DR   Gene3D; 3.30.565.10; -; 1.
DR   HAMAP; MF_01837; Kinase_SasA; 1.
DR   InterPro; IPR003594; HATPase_C.
DR   InterPro; IPR036890; HATPase_C_sf.
DR   InterPro; IPR005467; His_kinase_dom.
DR   InterPro; IPR003661; HisK_dim/P.
DR   InterPro; IPR036097; HisK_dim/P_sf.
DR   InterPro; IPR011649; KaiB_domain.
DR   InterPro; IPR023527; Kinase_SasA.
DR   InterPro; IPR004358; Sig_transdc_His_kin-like_C.
DR   InterPro; IPR036249; Thioredoxin-like_sf.
DR   Pfam; PF02518; HATPase_c; 1.
DR   Pfam; PF00512; HisKA; 1.
DR   Pfam; PF07689; KaiB; 1.
DR   PRINTS; PR00344; BCTRLSENSOR.
DR   SMART; SM00387; HATPase_c; 1.
DR   SMART; SM00388; HisKA; 1.
DR   SMART; SM01248; KaiB; 1.
DR   SUPFAM; SSF47384; SSF47384; 1.
DR   SUPFAM; SSF52833; SSF52833; 1.
DR   SUPFAM; SSF55874; SSF55874; 1.
DR   PROSITE; PS50109; HIS_KIN; 1.
PE   3: Inferred from homology;
KW   Biological rhythms; Kinase; Phosphoprotein; Transferase;
KW   Two-component regulatory system.
FT   CHAIN           1..372
FT                   /note="Adaptive-response sensory-kinase SasA"
FT                   /id="PRO_1000088444"
FT   DOMAIN          147..360
FT                   /note="Histidine kinase"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01837"
FT   MOD_RES         150
FT                   /note="Phosphohistidine; by autocatalysis"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01837"
SQ   SEQUENCE   372 AA;  42480 MW;  547B9ACC97A08509 CRC64;
     MNDKKELKLI LVAARNQLSS SDIKSLIAYL ESDDCNFEIS LQISEPTEQP ELLELHRLVA
     IPALIKVSPA PKQIFAGSNI FSQLQKWLPR WNQEGLTKNL GINLQPSKID SIRTQKEYLL
     EDELLVLRQE NETLTKRIES QERLLRMVAH ELRTPLTAAT LAVQSQKLGQ IDIAKLQEVI
     KRRLEEIELL SQDLLEVGTT KWEALFNPQK IDLGNISAEA ILELEKFWRL RDIEIDTDIP
     SDLPSVFADQ RRMRQVFLNL IENAIKFSKD YGSIKITMIH KTNQWVEITI CDKGAGIPLN
     EQKRIFLDRV RLPQTSEGTS GFGIGLSVCR RIVQVHGGRI WVVSEIGVGS CFHFTVPVWQ
     GQNKEQHYLT KG