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Entry version 136 (29 Sep 2021)
Sequence version 1 (01 Nov 1988)
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Protein

Ribulose bisphosphate carboxylase small subunit, chloroplastic

Gene

RBCS

Organism
Zea mays (Maize)
Status
Reviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

RuBisCO catalyzes two reactions: the carboxylation of D-ribulose 1,5-bisphosphate, the primary event in carbon dioxide fixation, as well as the oxidative fragmentation of the pentose substrate. Both reactions occur simultaneously and in competition at the same active site. Although the small subunit is not catalytic it is essential for maximal activity.

UniRule annotation

Miscellaneous

The basic functional RuBisCO is composed of a large chain homodimer in a 'head-to-tail' conformation. In form I RuBisCO this homodimer is arranged in a barrel-like tetramer with the small subunits forming a tetrameric 'cap' on each end of the 'barrel'.UniRule annotation

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Biological processCalvin cycle, Carbon dioxide fixation, Photorespiration, Photosynthesis

Enzyme and pathway databases

SABIO-RK: Biochemical Reaction Kinetics Database

More...
SABIO-RKi
P05348

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Ribulose bisphosphate carboxylase small subunit, chloroplasticUniRule annotation
Short name:
RuBisCO small subunitUniRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:RBCSUniRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiZea mays (Maize)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri4577 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliopsidaLiliopsidaPoalesPoaceaePACMAD cladePanicoideaeAndropogonodaeAndropogoneaeTripsacinaeZea
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000007305 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 4

Organism-specific databases

Maize Genetics and Genomics Database

More...
MaizeGDBi
62391

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Keywords - Cellular componenti

Chloroplast, Plastid

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a transit peptide.<p><a href='/help/transit' target='_top'>More...</a></p>Transit peptidei1 – 47Chloroplast1 PublicationAdd BLAST47
Transit peptidei1 – 46ChloroplastUniRule annotationAdd BLAST46
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000003152247 – 170Ribulose bisphosphate carboxylase small subunit, chloroplasticUniRule annotationAdd BLAST124

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
P05348

PRoteomics IDEntifications database

More...
PRIDEi
P05348

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
P05348, baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
P05348, ZM

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Heterohexadecamer of 8 large and 8 small subunits.

UniRule annotation

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
4577.GRMZM2G098520_P01

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
P05348

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the RuBisCO small chain family.UniRule annotation

Keywords - Domaini

Transit peptide

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG502QT0M, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_098114_1_0_1

Identification of Orthologs from Complete Genome Data

More...
OMAi
VAQASMV

Database of Orthologous Groups

More...
OrthoDBi
1258997at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd03527, RuBisCO_small, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.30.190.10, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_00859, RuBisCO_S_bact, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR024681, RuBisCO_ssu
IPR000894, RuBisCO_ssu_dom
IPR024680, RuBisCO_ssu_N
IPR036385, RuBisCO_ssu_sf

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF12338, RbcS, 1 hit
PF00101, RuBisCO_small, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00152, RUBISCOSMALL

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00961, RuBisCO_small, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF55239, SSF55239, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

P05348-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MAPTVMMASS ATAVAPFQGL KSTASLPVAR RSSRSLGNVS NGGRIRCMQV
60 70 80 90 100
WPAYGNKKFE TLSYLPPLST DDLLKQVDYL LRNGWIPCLE FSKVGFVYRE
110 120 130 140 150
NSTSPCYYDG RYWTMWKLPM FGCNDATQVY KELQEAIKSY PDAFHRVIGF
160 170
DNIKQTQCVS FIAYKPPGSD
Length:170
Mass (Da):19,151
Last modified:November 1, 1988 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i4625A5FDED3C2663
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti81Missing in CAA68419 (PubMed:3588298).Curated1

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes natural variant(s) of the protein sequence.<p><a href='/help/variant' target='_top'>More...</a></p>Natural varianti53A → I. 1
Natural varianti81 – 82LR → IV. 2
Natural varianti85W → E. 1
Natural varianti92S → V. 1
Natural varianti94V → L. 1
Natural varianti124N → T. 1
Natural varianti128Q → L. 1
Natural varianti132E → V. 1
Natural varianti138 – 139KS → AA. 2
Natural varianti142D → G. 1
Natural varianti153 – 154IK → VR. 2
Natural varianti163A → L. 1
Natural varianti165K → G. 1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
D00170 mRNA Translation: BAA00120.1
X06535 mRNA Translation: CAA29784.1
Y00322 Genomic DNA Translation: CAA68419.1
S42508 Genomic DNA Translation: AAD13825.1
S42568 Genomic DNA Translation: AAD13826.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S00534, RKZMS

NCBI Reference Sequences

More...
RefSeqi
NP_001105294.1, NM_001111824.1

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
Zm00001eb197410_T001; Zm00001eb197410_P001; Zm00001eb197410

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
542212

Gramene; a comparative resource for plants

More...
Gramenei
Zm00001eb197410_T001; Zm00001eb197410_P001; Zm00001eb197410

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
zma:542212

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D00170 mRNA Translation: BAA00120.1
X06535 mRNA Translation: CAA29784.1
Y00322 Genomic DNA Translation: CAA68419.1
S42508 Genomic DNA Translation: AAD13825.1
S42568 Genomic DNA Translation: AAD13826.1
PIRiS00534, RKZMS
RefSeqiNP_001105294.1, NM_001111824.1

3D structure databases

SMRiP05348
ModBaseiSearch...

Protein-protein interaction databases

STRINGi4577.GRMZM2G098520_P01

Proteomic databases

PaxDbiP05348
PRIDEiP05348

Genome annotation databases

EnsemblPlantsiZm00001eb197410_T001; Zm00001eb197410_P001; Zm00001eb197410
GeneIDi542212
GrameneiZm00001eb197410_T001; Zm00001eb197410_P001; Zm00001eb197410
KEGGizma:542212

Organism-specific databases

MaizeGDBi62391

Phylogenomic databases

eggNOGiENOG502QT0M, Eukaryota
HOGENOMiCLU_098114_1_0_1
OMAiVAQASMV
OrthoDBi1258997at2759

Enzyme and pathway databases

SABIO-RKiP05348

Gene expression databases

ExpressionAtlasiP05348, baseline and differential
GenevisibleiP05348, ZM

Family and domain databases

CDDicd03527, RuBisCO_small, 1 hit
Gene3Di3.30.190.10, 1 hit
HAMAPiMF_00859, RuBisCO_S_bact, 1 hit
InterProiView protein in InterPro
IPR024681, RuBisCO_ssu
IPR000894, RuBisCO_ssu_dom
IPR024680, RuBisCO_ssu_N
IPR036385, RuBisCO_ssu_sf
PfamiView protein in Pfam
PF12338, RbcS, 1 hit
PF00101, RuBisCO_small, 1 hit
PRINTSiPR00152, RUBISCOSMALL
SMARTiView protein in SMART
SM00961, RuBisCO_small, 1 hit
SUPFAMiSSF55239, SSF55239, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiRBS_MAIZE
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P05348
Secondary accession number(s): Q43355
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1988
Last sequence update: November 1, 1988
Last modified: September 29, 2021
This is version 136 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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