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Entry version 93 (29 Sep 2021)
Sequence version 1 (01 Nov 1996)
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Protein

Ent-kaur-16-ene synthase, chloroplastic

Gene
N/A
Organism
Cucurbita maxima (Pumpkin) (Winter squash)
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

Catalyzes the conversion of ent-copalyl diphosphate to the gibberellin precursor ent-kaur-16-ene.

<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

<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 similarityNote: Binds 3 Mg2+ ions per subunit.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=0.35 µM for copalyl diphosphate

pH dependencei

Optimum pH is 6.8-7.5.

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi: gibberellin biosynthesis

This protein is involved in the pathway gibberellin biosynthesis, which is part of Plant hormone biosynthesis.
View all proteins of this organism that are known to be involved in the pathway gibberellin biosynthesis and in Plant hormone biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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 bindingi536Magnesium 1By similarity1
Metal bindingi536Magnesium 2By similarity1
Metal bindingi540Magnesium 1By similarity1
Metal bindingi540Magnesium 2By similarity1
Metal bindingi680Magnesium 3By similarity1
Metal bindingi684Magnesium 3By similarity1
Metal bindingi688Magnesium 3By 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 functionLyase
LigandMagnesium, Metal-binding

Enzyme and pathway databases

UniPathway: a resource for the exploration and annotation of metabolic pathways

More...
UniPathwayi
UPA00390

<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:
Ent-kaur-16-ene synthase, chloroplastic (EC:4.2.3.19)
Alternative name(s):
Ent-kaurene synthase
Ent-kaurene synthase B
Short name:
KSB
<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>OrganismiCucurbita maxima (Pumpkin) (Winter squash)
<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 identifieri3661 [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 lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliopsidaeudicotyledonsGunneridaePentapetalaerosidsfabidsCucurbitalesCucurbitaceaeCucurbiteaeCucurbita
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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
  • UP000504608 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">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: Genome assembly

<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 – ?ChloroplastSequence analysis
<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_0000033626? – 789Ent-kaur-16-ene synthase, chloroplastic

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

The N-terminus is blocked.

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
Q39548

<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

Abundant in most tissues. Present in low amounts in mature cotyledons.

<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
Q39548

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

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi536 – 540DDXXD motif5

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The Asp-Asp-Xaa-Xaa-Asp/Glu (DDXXD/E) motif is important for the catalytic activity, presumably through binding to Mg2+.

<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 synthase family.Curated

Keywords - Domaini

Transit peptide

Phylogenomic databases

Database of Orthologous Groups

More...
OrthoDBi
318477at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00684, Terpene_cyclase_plant_C1, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.600.10, 1 hit
1.50.10.130, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR008949, Isoprenoid_synthase_dom_sf
IPR044814, Terpene_cyclase_plant_C1
IPR001906, Terpene_synth_N
IPR036965, Terpene_synth_N_sf
IPR005630, Terpene_synthase_metal-bd
IPR008930, Terpenoid_cyclase/PrenylTrfase

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF01397, Terpene_synth, 1 hit
PF03936, Terpene_synth_C, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF48239, SSF48239, 2 hits
SSF48576, SSF48576, 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.

<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 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.

Q39548-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MYLSRPTGVA RFAASSSSSS SASLFPGVDV DTTTKTGALH FEETKERIKK
60 70 80 90 100
LFDKVELSVS AYDTAWVAMV PSPNSLNQPL FPECINWVLD SQHADGSWGL
110 120 130 140 150
LHNDQLLMKA NLLSTLACVL TLKRWNIGHD HMSKALDFIK SNIASATDEN
160 170 180 190 200
QRSPVGFDII FPGMIEYAKD LNLNLPLAPT NVDALVRKKE LELRSCRSNS
210 220 230 240 250
EGGKAYLAYV SEGIGKLQDW DMVMQYQRKN GSLFNSPSTT AAAFMHRNDD
260 270 280 290 300
GCFDYLRSLL QKFDGSVPTI YPLDIYARLH MVDSLQKFGI ARHFKEEIRS
310 320 330 340 350
VLDETYRCWM QGEENIFLDA STCAMAFRML RVEGYDVSSD QLTQFSEDIF
360 370 380 390 400
PNCLGGYLKD FGASLELYKA SQIITHPDES VLENINSWTS RFLKHGLSSD
410 420 430 440 450
SVWSDRTDSV VKQEAVNALE FPYNATLERL ISKRAMESYS GDIVRISKSP
460 470 480 490 500
YACLNFGHQD FLELAVEDFN TLQRIHLKEL EELQRWVVEN KLDELKFFRL
510 520 530 540 550
HLGYCYFAAA ATLTDPELHD ARIAWAQNGV LTTVVDDFYD GGGSEEELDN
560 570 580 590 600
LIELVEKWDP DGEVGYCSKD VEIVFLALHS TVCEIGRRAL VWQGRSVMRN
610 620 630 640 650
VIDGWLALLK VMRKEAEWST NKVVPSMGEY MEQAHVSFAL GPIILPMLFF
660 670 680 690 700
VGPKLSEEMI GSCEYQKLYK LMSTAGRLKN DIRSYDRECK EGKLNILSLW
710 720 730 740 750
MIDGGGNVTK EEAIEAIKGD FERAIRELLG LVLQENTTIP RACKDLFWKL
760 770 780
MSIVNLFYME DDGYTSNRLM NTVKAMFEQP MDLDALLNK
Length:789
Mass (Da):89,362
Last modified:November 1, 1996 - 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:i8CC87F2884CCD7F2
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
U43904 mRNA Translation: AAB39482.1

Protein sequence database of the Protein Information Resource

More...
PIRi
T09672

<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
U43904 mRNA Translation: AAB39482.1
PIRiT09672

3D structure databases

SMRiQ39548
ModBaseiSearch...

Proteomic databases

PRIDEiQ39548

Phylogenomic databases

OrthoDBi318477at2759

Enzyme and pathway databases

UniPathwayiUPA00390

Family and domain databases

CDDicd00684, Terpene_cyclase_plant_C1, 1 hit
Gene3Di1.10.600.10, 1 hit
1.50.10.130, 1 hit
InterProiView protein in InterPro
IPR008949, Isoprenoid_synthase_dom_sf
IPR044814, Terpene_cyclase_plant_C1
IPR001906, Terpene_synth_N
IPR036965, Terpene_synth_N_sf
IPR005630, Terpene_synthase_metal-bd
IPR008930, Terpenoid_cyclase/PrenylTrfase
PfamiView protein in Pfam
PF01397, Terpene_synth, 1 hit
PF03936, Terpene_synth_C, 1 hit
SUPFAMiSSF48239, SSF48239, 2 hits
SSF48576, SSF48576, 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 nameiKSB_CUCMA
<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: Q39548
<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: April 26, 2005
Last sequence update: November 1, 1996
Last modified: September 29, 2021
This is version 93 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. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families
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