ID A0A0S3AHZ4_9PROT Unreviewed; 144 AA.
AC A0A0S3AHZ4;
DT 17-FEB-2016, integrated into UniProtKB/TrEMBL.
DT 17-FEB-2016, sequence version 1.
DT 24-JAN-2024, entry version 26.
DE RecName: Full=Ribulose bisphosphate carboxylase small subunit {ECO:0000256|HAMAP-Rule:MF_00859};
DE Short=RuBisCO small subunit {ECO:0000256|HAMAP-Rule:MF_00859};
GN Name=cbbS {ECO:0000256|HAMAP-Rule:MF_00859};
GN ORFNames=C8R28_100395 {ECO:0000313|EMBL:PTQ87826.1},
GN SAMN05216334_10240 {ECO:0000313|EMBL:SEF46211.1}, SAMN05216406_101244
GN {ECO:0000313|EMBL:SDT84386.1}, SAMN05421510_100492
GN {ECO:0000313|EMBL:SEP78749.1};
OS Nitrosomonas ureae.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Nitrosomonadales;
OC Nitrosomonadaceae; Nitrosomonas.
OX NCBI_TaxID=44577 {ECO:0000313|EMBL:PTQ87826.1, ECO:0000313|Proteomes:UP000244110};
RN [1] {ECO:0000313|Proteomes:UP000181998, ECO:0000313|Proteomes:UP000182882}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Nm10 {ECO:0000313|EMBL:SDT84386.1,
RC ECO:0000313|Proteomes:UP000182882}, Nm13 {ECO:0000313|EMBL:SEF46211.1,
RC ECO:0000313|Proteomes:UP000236753}, and Nm9
RC {ECO:0000313|EMBL:SEP78749.1, ECO:0000313|Proteomes:UP000181998};
RA de Groot N.N.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:PTQ87826.1, ECO:0000313|Proteomes:UP000244110}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Nm4 {ECO:0000313|EMBL:PTQ87826.1,
RC ECO:0000313|Proteomes:UP000244110};
RA Wagner M.;
RT "Active sludge and wastewater microbial communities from Klosterneuburg,
RT Austria.";
RL Submitted (APR-2018) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: RuBisCO catalyzes two reactions: the carboxylation of D-
CC ribulose 1,5-bisphosphate, the primary event in carbon dioxide
CC fixation, as well as the oxidative fragmentation of the pentose
CC substrate. Both reactions occur simultaneously and in competition at
CC the same active site. Although the small subunit is not catalytic it is
CC essential for maximal activity. {ECO:0000256|HAMAP-Rule:MF_00859}.
CC -!- SUBUNIT: Heterohexadecamer of 8 large and 8 small subunits.
CC {ECO:0000256|ARBA:ARBA00038826, ECO:0000256|HAMAP-Rule:MF_00859}.
CC -!- MISCELLANEOUS: The basic functional RuBisCO is composed of a large
CC chain homodimer in a 'head-to-tail' conformation. In form I RuBisCO
CC this homodimer is arranged in a barrel-like tetramer with the small
CC subunits forming a tetrameric 'cap' on each end of the 'barrel'.
CC {ECO:0000256|HAMAP-Rule:MF_00859}.
CC -!- SIMILARITY: Belongs to the RuBisCO small chain family.
CC {ECO:0000256|HAMAP-Rule:MF_00859}.
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DR EMBL; QAOL01000003; PTQ87826.1; -; Genomic_DNA.
DR EMBL; FNLN01000001; SDT84386.1; -; Genomic_DNA.
DR EMBL; FNUX01000002; SEF46211.1; -; Genomic_DNA.
DR EMBL; FOFX01000004; SEP78749.1; -; Genomic_DNA.
DR RefSeq; WP_062558470.1; NZ_QJJW01000002.1.
DR AlphaFoldDB; A0A0S3AHZ4; -.
DR STRING; 44577.ATY38_05755; -.
DR KEGG; nur:ATY38_05755; -.
DR OrthoDB; 9788955at2; -.
DR Proteomes; UP000181998; Unassembled WGS sequence.
DR Proteomes; UP000182882; Unassembled WGS sequence.
DR Proteomes; UP000236753; Unassembled WGS sequence.
DR Proteomes; UP000244110; Unassembled WGS sequence.
DR GO; GO:0016984; F:ribulose-bisphosphate carboxylase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0019253; P:reductive pentose-phosphate cycle; IEA:UniProtKB-UniRule.
DR CDD; cd03527; RuBisCO_small; 1.
DR Gene3D; 3.30.190.10; Ribulose bisphosphate carboxylase, small subunit; 1.
DR HAMAP; MF_00859; RuBisCO_S_bact; 1.
DR InterPro; IPR024681; RuBisCO_ssu.
DR InterPro; IPR000894; RuBisCO_ssu_dom.
DR InterPro; IPR036385; RuBisCO_ssu_sf.
DR PANTHER; PTHR31262; RIBULOSE BISPHOSPHATE CARBOXYLASE SMALL CHAIN 1, CHLOROPLASTIC; 1.
DR PANTHER; PTHR31262:SF23; RIBULOSE BISPHOSPHATE CARBOXYLASE SMALL SUBUNIT; 1.
DR Pfam; PF00101; RuBisCO_small; 1.
DR SMART; SM00961; RuBisCO_small; 1.
DR SUPFAM; SSF55239; RuBisCO, small subunit; 1.
PE 3: Inferred from homology;
KW Calvin cycle {ECO:0000256|ARBA:ARBA00022567, ECO:0000256|HAMAP-
KW Rule:MF_00859};
KW Carbon dioxide fixation {ECO:0000256|ARBA:ARBA00023300, ECO:0000256|HAMAP-
KW Rule:MF_00859}.
FT DOMAIN 10..109
FT /note="Ribulose bisphosphate carboxylase small subunit"
FT /evidence="ECO:0000259|SMART:SM00961"
SQ SEQUENCE 144 AA; 16400 MW; 05E5BBADAA05C4C1 CRC64;
MMTNQGNIVT QGQFSFLPPL TDKQISAQLK YALKNGWAIG IEYTDDPHPR NTYWEMFGNP
MFDLKDPAGI LLEINSCRKT FPNHYIRVTA FNSTRGVESP TMSYIVNRPK KEPGFSLVRQ
EGAGRSVSYT IHSYATDKPE AERY
//
