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Entry version 12 (11 Dec 2019)
Sequence version 1 (08 Jun 2016)
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Protein

Lycopaoctaene synthase

Gene

LOS

Organism
Botryococcus braunii (Green alga)
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

Converts the C20 geranylgeranyl diphosphate (GGPP) to the C40 lycopaoctaene, the first committed intermediate in the production of lycopadiene (PubMed:27050299, PubMed:28813599). Converts farnesyl diphosphate (FPP) into squalene, a precursor for sterol biosynthesis in eukaryotes (PubMed:27050299, PubMed:28813599). Converts with low efficiency the C20 phytyl diphosphate (PPP) to the C40 lycopadiene in vitro. This reaction may not have biological significance in vivo (PubMed:27050299).2 Publications

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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

<p>This subsection of the ‘Function’ section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

Mg2+By similarity

<p>This subsection of the ‘Function’ section describes biophysical and chemical properties, such as maximal absorption, kinetic parameters, pH dependence, redox potentials and temperature dependence.<p><a href='/help/biophysicochemical_properties' target='_top'>More...</a></p>Kineticsi

  1. KM=0.07 mM for geranylgeranyl diphosphate1 Publication
  2. KM=0.13 mM for farnesyl diphosphate1 Publication
  3. KM=0.11 mM for phytil diphosphate1 Publication

    Sites

    Feature keyPosition(s)DescriptionActionsGraphical viewLength
    <p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei48NADPBy similarity1
    Binding sitei73NADPBy similarity1
    <p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi76MagnesiumBy similarity1
    Metal bindingi79MagnesiumBy similarity1
    Metal bindingi80MagnesiumBy similarity1
    Binding sitei215NADPBy similarity1
    Binding sitei315NADPBy similarity1
    Binding sitei317NADPBy 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 functionTransferase
    LigandMagnesium, Metal-binding, NAD, NADP

    Enzyme and pathway databases

    BioCyc Collection of Pathway/Genome Databases

    More...
    BioCyci
    MetaCyc:MONOMER-20363

    <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:
    Lycopaoctaene synthase1 Publication (EC:2.5.1.1481 Publication)
    Alternative name(s):
    Squalene synthase-like LOSCurated (EC:2.5.1.211 Publication)
    <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:LOS1 Publication
    <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>OrganismiBotryococcus braunii (Green alga)
    <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 identifieri38881 [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 lineageiEukaryotaViridiplantaeChlorophytaTrebouxiophyceaeElliptochloris cladeBotryococcus

    <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

    Topology

    Feature keyPosition(s)DescriptionActionsGraphical viewLength
    <p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei391 – 411HelicalSequence analysisAdd BLAST21
    Transmembranei415 – 435HelicalSequence analysisAdd BLAST21

    Keywords - Cellular componenti

    Membrane

    <p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

    Mutagenesis

    Feature keyPosition(s)DescriptionActionsGraphical viewLength
    <p>This subsection of the <a href="http://www.uniprot.org/manual/pathology_and_biotech_section">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi276S → Y: Loss of lycopaoctaene synthase activity; when associated with F-288. 1 Publication1
    Mutagenesisi288A → F: Loss of lycopaoctaene synthase activity; when associated with Y-276. 1 Publication1

    <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.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00004465041 – 444Lycopaoctaene synthaseAdd BLAST444

    <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 phytoene/squalene synthase family.Curated

    Keywords - Domaini

    Transmembrane, Transmembrane helix

    Phylogenomic databases

    KEGG Orthology (KO)

    More...
    KOi
    K23152

    Family and domain databases

    Conserved Domains Database

    More...
    CDDi
    cd00683 Trans_IPPS_HH, 1 hit

    Gene3D Structural and Functional Annotation of Protein Families

    More...
    Gene3Di
    1.10.600.10, 1 hit

    Integrated resource of protein families, domains and functional sites

    More...
    InterProi
    View protein in InterPro
    IPR008949 Isoprenoid_synthase_dom_sf
    IPR002060 Squ/phyt_synthse
    IPR006449 Squal_synth-like
    IPR019845 Squalene/phytoene_synthase_CS
    IPR033904 Trans_IPPS_HH

    Structure-Function Linkage Database

    More...
    SFLDi
    SFLDG01018 Squalene/Phytoene_Synthase_Lik, 1 hit

    Superfamily database of structural and functional annotation

    More...
    SUPFAMi
    SSF48576 SSF48576, 1 hit

    TIGRFAMs; a protein family database

    More...
    TIGRFAMsi
    TIGR01559 squal_synth, 1 hit

    PROSITE; a protein domain and family database

    More...
    PROSITEi
    View protein in PROSITE
    PS01045 SQUALEN_PHYTOEN_SYN_2, 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.

    A0A142ZC57-1 [UniParc]FASTAAdd to basket
    « Hide
            10         20         30         40         50
    MKYTDFLAHP DEIIPTIRMM YADYRLKNME IKDPSVRFCY NMLNRVSRSF
    60 70 80 90 100
    AMVIQQLPVE LRDATCVFYL ILRALDTVED DMAIPKEVKI PMLRTFHEHL
    110 120 130 140 150
    SDRSWKIKCG YGPYVDLMDN YPLVTDVYLR FDEGTKAVIK DITRRMGNGM
    160 170 180 190 200
    ADFIDLDEVL TIPQYDLYCH YVAGLCGIGM CKLFVDSGLE KEDLVAEEDL
    210 220 230 240 250
    ANQMGLFLQK NNIVRDYLED INELPAPRMF WPKEIWGNYA KQLDEFKDPK
    260 270 280 290 300
    NLDKAMLCLN HMVTDALRHC EVGLRSLSLL HNPNILRAVL IPQVMGVRTL
    310 320 330 340 350
    TLVYNNPEVF RGVVKMRRGE TAKIFVTTTS KLSFFRTYLQ FANEMEQKCL
    360 370 380 390 400
    TEAKNDPMVA LTLKRVQGVQ AACRAAIVKA EIAEGAKGPS TAMVLAGALL
    410 420 430 440
    IAALAYFAYV YSAGGTSLKA LPLFGVVIIL AIGLFGRNLA LKTV
    Length:444
    Mass (Da):50,278
    Last modified:June 8, 2016 - 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:i5820ABC9F5045FA9
    GO

    Sequence databases

    Select the link destinations:

    EMBL nucleotide sequence database

    More...
    EMBLi

    GenBank nucleotide sequence database

    More...
    GenBanki

    DNA Data Bank of Japan; a nucleotide sequence database

    More...
    DDBJi
    Links Updated
    KT388101 mRNA Translation: AMV49169.1

    Genome annotation databases

    KEGG: Kyoto Encyclopedia of Genes and Genomes

    More...
    KEGGi
    ag:AMV49169

    <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
    KT388101 mRNA Translation: AMV49169.1

    3D structure databases

    Database of comparative protein structure models

    More...
    ModBasei
    Search...

    SWISS-MODEL Interactive Workspace

    More...
    SWISS-MODEL-Workspacei
    Submit a new modelling project...

    Genome annotation databases

    KEGGiag:AMV49169

    Phylogenomic databases

    KOiK23152

    Enzyme and pathway databases

    BioCyciMetaCyc:MONOMER-20363

    Family and domain databases

    CDDicd00683 Trans_IPPS_HH, 1 hit
    Gene3Di1.10.600.10, 1 hit
    InterProiView protein in InterPro
    IPR008949 Isoprenoid_synthase_dom_sf
    IPR002060 Squ/phyt_synthse
    IPR006449 Squal_synth-like
    IPR019845 Squalene/phytoene_synthase_CS
    IPR033904 Trans_IPPS_HH
    SFLDiSFLDG01018 Squalene/Phytoene_Synthase_Lik, 1 hit
    SUPFAMiSSF48576 SSF48576, 1 hit
    TIGRFAMsiTIGR01559 squal_synth, 1 hit
    PROSITEiView protein in PROSITE
    PS01045 SQUALEN_PHYTOEN_SYN_2, 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 nameiLOS_BOTBR
    <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: A0A142ZC57
    <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: April 10, 2019
    Last sequence update: June 8, 2016
    Last modified: December 11, 2019
    This is version 12 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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