SP2AB_CLOK1
ID SP2AB_CLOK1 Reviewed; 142 AA.
AC B9E5R9;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 24-MAR-2009, sequence version 1.
DT 03-AUG-2022, entry version 72.
DE RecName: Full=Anti-sigma F factor {ECO:0000255|HAMAP-Rule:MF_00637};
DE EC=2.7.11.1 {ECO:0000255|HAMAP-Rule:MF_00637};
DE AltName: Full=Stage II sporulation protein AB {ECO:0000255|HAMAP-Rule:MF_00637};
GN Name=spoIIAB {ECO:0000255|HAMAP-Rule:MF_00637}; OrderedLocusNames=CKR_2793;
OS Clostridium kluyveri (strain NBRC 12016).
OC Bacteria; Firmicutes; Clostridia; Eubacteriales; Clostridiaceae;
OC Clostridium.
OX NCBI_TaxID=583346;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NBRC 12016;
RA Inui M., Nonaka H., Shinoda Y., Ikenaga Y., Abe M., Naito K., Vertes A.A.,
RA Yukawa H.;
RT "Complete genome sequence of Clostridium kluyveri and comparative genomics
RT of Clostridia species.";
RL Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Binds to sigma F and blocks its ability to form an RNA
CC polymerase holoenzyme (E-sigma F). Phosphorylates SpoIIAA on a serine
CC residue. This phosphorylation may enable SpoIIAA to act as an anti-
CC anti-sigma factor that counteracts SpoIIAB and thus releases sigma F
CC from inhibition. {ECO:0000255|HAMAP-Rule:MF_00637}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-
CC [protein]; Xref=Rhea:RHEA:17989, Rhea:RHEA-COMP:9863, Rhea:RHEA-
CC COMP:11604, ChEBI:CHEBI:15378, ChEBI:CHEBI:29999, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:83421, ChEBI:CHEBI:456216; EC=2.7.11.1;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00637};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-
CC threonyl-[protein]; Xref=Rhea:RHEA:46608, Rhea:RHEA-COMP:11060,
CC Rhea:RHEA-COMP:11605, ChEBI:CHEBI:15378, ChEBI:CHEBI:30013,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:61977, ChEBI:CHEBI:456216;
CC EC=2.7.11.1; Evidence={ECO:0000255|HAMAP-Rule:MF_00637};
CC -!- SIMILARITY: Belongs to the anti-sigma-factor family.
CC {ECO:0000255|HAMAP-Rule:MF_00637}.
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DR EMBL; AP009049; BAH07844.1; -; Genomic_DNA.
DR RefSeq; WP_012103498.1; NC_011837.1.
DR AlphaFoldDB; B9E5R9; -.
DR SMR; B9E5R9; -.
DR EnsemblBacteria; BAH07844; BAH07844; CKR_2793.
DR KEGG; ckr:CKR_2793; -.
DR HOGENOM; CLU_090336_11_0_9; -.
DR Proteomes; UP000007969; Chromosome.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0106310; F:protein serine kinase activity; IEA:RHEA.
DR GO; GO:0004674; F:protein serine/threonine kinase activity; IEA:UniProtKB-KW.
DR GO; GO:0016989; F:sigma factor antagonist activity; IEA:InterPro.
DR GO; GO:0030436; P:asexual sporulation; IEA:UniProtKB-UniRule.
DR GO; GO:0042174; P:negative regulation of sporulation resulting in formation of a cellular spore; IEA:InterPro.
DR GO; GO:0006468; P:protein phosphorylation; IEA:InterPro.
DR GO; GO:0030435; P:sporulation resulting in formation of a cellular spore; IEA:UniProtKB-KW.
DR Gene3D; 3.30.565.10; -; 1.
DR HAMAP; MF_00637; Anti_sigma_F; 1.
DR InterPro; IPR010194; Anti-sigma_F.
DR InterPro; IPR003594; HATPase_C.
DR InterPro; IPR036890; HATPase_C_sf.
DR Pfam; PF13581; HATPase_c_2; 1.
DR SMART; SM00387; HATPase_c; 1.
DR SUPFAM; SSF55874; SSF55874; 1.
DR TIGRFAMs; TIGR01925; spIIAB; 1.
PE 3: Inferred from homology;
KW ATP-binding; Kinase; Nucleotide-binding; Serine/threonine-protein kinase;
KW Sporulation; Transferase.
FT CHAIN 1..142
FT /note="Anti-sigma F factor"
FT /id="PRO_1000147383"
SQ SEQUENCE 142 AA; 15833 MW; A2EE5BC473A23F99 CRC64;
MYDNSMKIEF ISKSQNESFA RVSVAAFVSQ LDPTLDELTD VKTAVSEAVT NSIIHGYENK
EGIVKIEASI KGRELILIVE DNGIGIENID MAMQPLYTSK PELERSGMGF TVMETFMDSL
QVESEKNKGT RLIMKKVFNS LS