ID Q5XLE8_COFCA Unreviewed; 66 AA. AC Q5XLE8; DT 23-NOV-2004, integrated into UniProtKB/TrEMBL. DT 23-NOV-2004, sequence version 1. DT 03-MAY-2023, entry version 64. DE RecName: Full=Ribulose bisphosphate carboxylase small subunit {ECO:0000256|RuleBase:RU003627}; DE Short=RuBisCO small subunit {ECO:0000256|RuleBase:RU003627}; DE Flags: Fragment; GN Name=rbsc1 {ECO:0000313|EMBL:AAU89439.1}; OS Coffea canephora (Robusta coffee). OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae; OC asterids; lamiids; Gentianales; Rubiaceae; Ixoroideae; Gardenieae complex; OC Bertiereae - Coffeeae clade; Coffeeae; Coffea. OX NCBI_TaxID=49390 {ECO:0000313|EMBL:AAU89439.1}; RN [1] {ECO:0000313|EMBL:AAU89439.1} RP NUCLEOTIDE SEQUENCE. RA Ramirez L.S.; RT "Characterization of rubisco small subunit in Coffea sp."; RL Submitted (SEP-2004) 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|RuleBase:RU003627}. CC -!- SUBUNIT: Heterohexadecamer of 8 large and 8 small subunits. CC {ECO:0000256|RuleBase:RU003627}. CC -!- SIMILARITY: Belongs to the RuBisCO small chain family. CC {ECO:0000256|RuleBase:RU003627}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; AY753745; AAU89439.1; -; Genomic_DNA. DR AlphaFoldDB; Q5XLE8; -. DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-KW. DR GO; GO:0009853; P:photorespiration; IEA:UniProtKB-UniRule. DR GO; GO:0019253; P:reductive pentose-phosphate cycle; IEA:UniProtKB-KW. DR Gene3D; 3.30.190.10; Ribulose bisphosphate carboxylase, small subunit; 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:SF10; RIBULOSE BISPHOSPHATE CARBOXYLASE SMALL SUBUNIT 1B, CHLOROPLASTIC-RELATED; 1. DR Pfam; PF00101; RuBisCO_small; 1. DR PRINTS; PR00152; RUBISCOSMALL. DR SUPFAM; SSF55239; RuBisCO, small subunit; 1. PE 3: Inferred from homology; KW Calvin cycle {ECO:0000256|ARBA:ARBA00022567}; KW Carbon dioxide fixation {ECO:0000256|ARBA:ARBA00023300, KW ECO:0000256|RuleBase:RU003627}; KW Chloroplast {ECO:0000256|ARBA:ARBA00022528}; KW Photorespiration {ECO:0000256|ARBA:ARBA00023238, KW ECO:0000256|RuleBase:RU003627}; KW Photosynthesis {ECO:0000256|ARBA:ARBA00022531, KW ECO:0000256|RuleBase:RU003627}; Plastid {ECO:0000256|RuleBase:RU003627}. FT DOMAIN 7..66 FT /note="Ribulose bisphosphate carboxylase small subunit" FT /evidence="ECO:0000259|Pfam:PF00101" FT NON_TER 1 FT /evidence="ECO:0000313|EMBL:AAU89439.1" FT NON_TER 66 FT /evidence="ECO:0000313|EMBL:AAU89439.1" SQ SEQUENCE 66 AA; 8143 MW; 1DC2BDA45D31BA45 CRC64; PRGLKKYETL SYLPDLTDEQ LLKEIDYLIR SGWVPCLEFE LEKGFVYREY HRSPGYYDGR YWTMWK //