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Entry version 56 (07 Apr 2021)
Sequence version 1 (20 Dec 2005)
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Protein

Cycloartenol synthase

Gene
N/A
Organism
Ricinus communis (Castor bean)
Status
Reviewed-Annotation score:

Annotation score:3 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

Oxidosqualene cyclase involved in the biosynthesis of cycloartenol.1 Publication

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei485Proton donorBy similarity1

<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 - Molecular functioni

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

Molecular functionIsomerase

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
5.4.99.8, 1204

<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%5Fand%5Ftaxonomy%5Fsection">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:
Cycloartenol synthase (EC:5.4.99.8)
Short name:
RcCAS
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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>OrganismiRicinus communis (Castor bean)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 identifieri3988 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliopsidaeudicotyledonsGunneridaePentapetalaerosidsfabidsMalpighialesEuphorbiaceaeAcalyphoideaeAcalypheaeRicinus

<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

<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 polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00004139931 – 759Cycloartenol synthaseAdd BLAST759

<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

<p>This subsection of the 'Expression' section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified 'at protein level'.<br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Ubiquitous.1 Publication

<p>This subsection of the 'Expression' section provides information on the expression of the gene product at various stages of a cell, tissue or organism development. By default, the information is derived from experiments at the mRNA level, unless specified 'at the protein level'.<p><a href='/help/developmental_stage' target='_top'>More...</a></p>Developmental stagei

Expressed constitutively.1 Publication

<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

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
3988.XP_002527812.1

<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

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SMRi
Q2XPU6

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

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section indicates the positions and types of repeated sequence motifs or repeated domains within the protein.<p><a href='/help/repeat' target='_top'>More...</a></p>Repeati149 – 190PFTB 1Add BLAST42
Repeati514 – 559PFTB 2Add BLAST46
Repeati591 – 631PFTB 3Add BLAST41
Repeati640 – 681PFTB 4Add BLAST42
Repeati702 – 743PFTB 5Add BLAST42

<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 terpene cyclase/mutase family.Curated

Keywords - Domaini

Repeat

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0497, Eukaryota

Database of Orthologous Groups

More...
OrthoDBi
365003at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd02892, SQCY_1, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR032696, SQ_cyclase_C
IPR032697, SQ_cyclase_N
IPR018333, Squalene_cyclase
IPR002365, Terpene_synthase_CS
IPR008930, Terpenoid_cyclase/PrenylTrfase

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF13243, SQHop_cyclase_C, 1 hit
PF13249, SQHop_cyclase_N, 1 hit

Structure-Function Linkage Database

More...
SFLDi
SFLDG01016, Prenyltransferase_Like_2, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF48239, SSF48239, 2 hits

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR01787, squalene_cyclas, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS01074, TERPENE_SYNTHASES, 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%5Flength">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%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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.

Q2XPU6-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MWKLRIAEGS GNPWLRTTND HIGRQVWEFD SSKIGSPEEL SQIENARQNF
60 70 80 90 100
TKNRFIHKHS SDLLMRIQFS KENPICEVLP QVKVKESEQV TEEKVKITLR
110 120 130 140 150
RALNYYSSIQ ADDGHWPGDY GGPMFLMPGL IIALSITGAL NAILSEEHKR
160 170 180 190 200
EMCRYLYNHQ NRDGGWGLHI EGPSTMFGSV LCYVSLRLLG EGPNEGEGAV
210 220 230 240 250
ERGRNWILKH GGATAITSWG KMWLSVLGAY EWSGNNPLPP EMWLLPYILP
260 270 280 290 300
VHPGRMWCHC RMVYLPMSYL YGKRFVGPIT PTVLSLRKEL YTVPYHEIDW
310 320 330 340 350
NQARNQCAKE DLYYPHPMLQ DVLWATLHKF VEPILMHWPG KRLREKAIQT
360 370 380 390 400
AIEHIHYEDE NTRYICIGPV NKVLNMLCCW VEDPNSEAFK LHLPRLYDYL
410 420 430 440 450
WLAEDGMKMQ GYNGSQLWDT AFAVQAIVST NLIEEYGPTL KKAHSFIKKM
460 470 480 490 500
QVLENCPGDL NFWYRHISKG AWPFSTADHG WPISDCTAEG IKALMLLSKI
510 520 530 540 550
PSEIVGEGLN ANRLYDAVNV VLSLQNGDGG FPTYELSRSY SWLEFINPAE
560 570 580 590 600
TFGDIVIDYP YVECTSAAIQ ALTSFRKSYP EHQREEIECC IKKAAKFMEK
610 620 630 640 650
IQISDGSWYG SWGVCFTYGT WFGIKGLVAA GKSFGNCSSI RKACDFLLSK
660 670 680 690 700
QCPSGGWGES YLSCQKKVYS NLEGDRSHVV NTAWAMLSLI DAGQAERDPT
710 720 730 740 750
PLHRAARYLI NAQMENGDFP QQEIMGVFNR NCMITYAAYR DIFPIWALGE

YRCRVLKAS
Length:759
Mass (Da):86,590
Last modified:December 20, 2005 - 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:i7F1DCA5CF124A71C
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
DQ268870 mRNA Translation: ABB76767.1

NCBI Reference Sequences

More...
RefSeqi
NP_001310632.1, NM_001323703.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

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GeneIDi
8262543

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
rcu:8262543

<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
DQ268870 mRNA Translation: ABB76767.1
RefSeqiNP_001310632.1, NM_001323703.1

3D structure databases

SMRiQ2XPU6
ModBaseiSearch...

Protein-protein interaction databases

STRINGi3988.XP_002527812.1

Genome annotation databases

GeneIDi8262543
KEGGircu:8262543

Phylogenomic databases

eggNOGiKOG0497, Eukaryota
OrthoDBi365003at2759

Enzyme and pathway databases

BRENDAi5.4.99.8, 1204

Family and domain databases

CDDicd02892, SQCY_1, 1 hit
InterProiView protein in InterPro
IPR032696, SQ_cyclase_C
IPR032697, SQ_cyclase_N
IPR018333, Squalene_cyclase
IPR002365, Terpene_synthase_CS
IPR008930, Terpenoid_cyclase/PrenylTrfase
PfamiView protein in Pfam
PF13243, SQHop_cyclase_C, 1 hit
PF13249, SQHop_cyclase_N, 1 hit
SFLDiSFLDG01016, Prenyltransferase_Like_2, 1 hit
SUPFAMiSSF48239, SSF48239, 2 hits
TIGRFAMsiTIGR01787, squalene_cyclas, 1 hit
PROSITEiView protein in PROSITE
PS01074, TERPENE_SYNTHASES, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

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 nameiCAS1_RICCO
<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: Q2XPU6
<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%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 16, 2011
Last sequence update: December 20, 2005
Last modified: April 7, 2021
This is version 56 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

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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