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UniProtKB - Q7SIC9 (TKTC_MAIZE)

Entry version 95 (02 Jun 2021)
Sequence version 1 (15 Dec 2003)
Previous versions | rss
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Protein

Transketolase, chloroplastic

Gene
N/A
Organism
Zea mays (Maize)
Status
Reviewed-Annotation score:

Annotation score:5 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 reversible transfer of a two-carbon ketol group from fructose-6-phosphate or sedoheptulose-7-phosphate to glyceraldehyde-3-phosphate to yield xylulose-5-phosphate and erythrose-4-phosphate or ribose-5-phosphate, respectively.

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

<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

Protein has several cofactor binding sites:

<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=581 µM for ribulose-5-phosphate1 Publication
  2. KM=403 µM for xyulose-5-phosphate1 Publication
  1. Vmax=25.3 µmol/min/mg enzyme with ribulose-5-phosphate as substrate1 Publication

<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: Calvin cycle

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

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections ('Function', 'PTM / Processing', 'Pathology and Biotech') according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei38Important for catalytic activityBy similarity1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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 sitei78Thiamine pyrophosphate1 Publication1
<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 bindingi168Magnesium1 Publication1
Binding sitei169Thiamine pyrophosphate; via amide nitrogenBy similarity1
Binding sitei173Thiamine pyrophosphate1 Publication1
Metal bindingi198Magnesium1 Publication1
Binding sitei198Thiamine pyrophosphateBy similarity1
Metal bindingi200Magnesium; via carbonyl oxygen1
Binding sitei275SubstrateBy similarity1
Binding sitei275Thiamine pyrophosphate1 Publication1
Sitei275Important for catalytic activityBy similarity1
Binding sitei369SubstrateBy similarity1
Binding sitei396SubstrateBy similarity1
<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 sitei423Proton donorBy similarity1
Binding sitei423Thiamine pyrophosphate; in homodimeric partner1 Publication1
Binding sitei474SubstrateBy similarity1
Binding sitei482SubstrateBy similarity1
Binding sitei533SubstrateBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi127 – 129Thiamine pyrophosphate1 Publication3
Nucleotide bindingi450 – 453Thiamine pyrophosphate; in homodimeric partner1 Publication4

<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

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<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, Thiamine pyrophosphate

Enzyme and pathway databases

SABIO-RK: Biochemical Reaction Kinetics Database

More...SABIO-RKi		Q7SIC9

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

More...UniPathwayi		UPA00116

<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:
Transketolase, chloroplastic (EC:2.2.1.1)
Short name:
TK
<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>OrganismiZea mays (Maize)
<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 identifieri4577 [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 lineageiEukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliopsida › Liliopsida › Poales › Poaceae › PACMAD clade › Panicoideae › Andropogonodae › Andropogoneae › Tripsacinae › Zea
<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
  • UP000007305 <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: Unplaced

Organism-specific databases

Maize Genetics and Genomics Database

More...MaizeGDBi		320183

<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, Membrane, Plastid, Thylakoid

<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_00002324201 – 675Transketolase, chloroplasticAdd BLAST675

Proteomic databases

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

More...PaxDbi		Q7SIC9

PRoteomics IDEntifications database

More...PRIDEi		Q7SIC9

<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		Q7SIC9, baseline and differential

<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%5Fsection">'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%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer.

1 Publication

Protein-protein interaction databases

STRING: functional protein association networks

More...STRINGi		4577.GRMZM2G033208_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

Secondary structure

1675
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

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

More...SMRi		Q7SIC9

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...EvolutionaryTracei		Q7SIC9

<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 transketolase family.1 Publication

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG0523, Eukaryota

Family and domain databases

Conserved Domains Database

More...CDDi		cd02012, TPP_TK, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		3.40.50.920, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR029061, THDP-binding
IPR009014, Transketo_C/PFOR_II
IPR005475, Transketolase-like_Pyr-bd
IPR005478, Transketolase_bac-like
IPR033248, Transketolase_C
IPR033247, Transketolase_fam
IPR005474, Transketolase_N

The PANTHER Classification System

More...PANTHERi		PTHR43522, PTHR43522, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF02779, Transket_pyr, 1 hit
PF02780, Transketolase_C, 1 hit
PF00456, Transketolase_N, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00861, Transket_pyr, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF52518, SSF52518, 2 hits
SSF52922, SSF52922, 1 hit

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR00232, tktlase_bact, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS00801, TRANSKETOLASE_1, 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.

Q7SIC9-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
GAVETLQGKA ATGELLEKSV NTIRFLAIDA VEKANSGHPG LPMGCAPMGH 
        60         70         80         90        100
VLYDEVMRYN PKNPYWFNRD RFVLSAGHGC MLQYALLHLA GYDSVKEEDL 
       110        120        130        140        150
KQFRQWGSRT PGHPENFETP GVEVTTGPLG QGIANAVGLA LAEKHLAARF 
       160        170        180        190        200
NKPDSEIVDH YTYVILGDGC QMEGIANEAC SLAGHWGLGK LIAFYDDNHI 
       210        220        230        240        250
SIDGDTEIAF TEDVSTRFEA LGWHTIWVKN GNTGYDDIRA AIKEAKAVTD 
       260        270        280        290        300
KPTLIKVTTT IGFGSPNKAN SYSVHGSALG AKEVEATRQN LGWPYDTFFV 
       310        320        330        340        350
PEDVKSHWSR HTPEGAALEA DWNAKFAEYE KKYADDAATL KSIITGELPT 
       360        370        380        390        400
GWVDALPKYT PESPGDATRN LSQQCLNALA NVVPGLIGGS ADLASSNMTL 
       410        420        430        440        450
LKMFGDFQKD TAEERNVRFG VREHGMGAIC NGIALHSPGF VPYCATFFVF 
       460        470        480        490        500
TDYMRGAMRI SALSEAGVIY VMTHDSIGLG EDGPTHQPIE HLVSFRAMPN 
       510        520        530        540        550
ILMLRPADGN ETAGAYKVAV LNRKRPSILA LSRQKLPHLP GTSIEGVEKG 
       560        570        580        590        600
GYTISDNSTG NKPDLIVMGT GSELEIAAKA ADELRKEGKT VRVVSFVSWE 
       610        620        630        640        650
LFDEQSDEYK ESVLPAAVTA RISIEAGSTL GWQKYVGAQG KAIGIDKFGA 
       660        670 
SAPAGTIYKE YGITVESIIA AAKSF
Length:675
Mass (Da):72,993
Last modified:December 15, 2003 - 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:i3F356BC2D0396510
GO

<p>This subsection of the 'Sequence' section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence AAN65341 differs from that shown. Reason: Erroneous initiation.Curated

<p>This subsection of the 'Sequence' section reports information derived from mass spectrometry experiments done on the entire protein or on biologically active derived peptide(s).<p><a href='/help/mass_spectrometry' target='_top'>More...</a></p>Mass spectrometryi

Molecular mass is 72994.8 Da. Determined by ESI. 1 Publication

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
AY148193 Other DNA Translation: AAN65341.1 Different initiation.

<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
AY148193 Other DNA Translation: AAN65341.1 Different initiation.

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...PDBei

Protein Data Bank RCSB

More...RCSB PDBi

Protein Data Bank Japan

More...PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1ITZX-ray2.30A/B/C1-675[»]
SMRiQ7SIC9
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

STRINGi4577.GRMZM2G033208_P01

Proteomic databases

PaxDbiQ7SIC9
PRIDEiQ7SIC9

Organism-specific databases

MaizeGDBi320183

Phylogenomic databases

eggNOGiKOG0523, Eukaryota

Enzyme and pathway databases

UniPathwayiUPA00116
SABIO-RKiQ7SIC9

Miscellaneous databases

EvolutionaryTraceiQ7SIC9

Gene expression databases

ExpressionAtlasiQ7SIC9, baseline and differential

Family and domain databases

CDDicd02012, TPP_TK, 1 hit
Gene3Di3.40.50.920, 1 hit
InterProiView protein in InterPro
IPR029061, THDP-binding
IPR009014, Transketo_C/PFOR_II
IPR005475, Transketolase-like_Pyr-bd
IPR005478, Transketolase_bac-like
IPR033248, Transketolase_C
IPR033247, Transketolase_fam
IPR005474, Transketolase_N
PANTHERiPTHR43522, PTHR43522, 1 hit
PfamiView protein in Pfam
PF02779, Transket_pyr, 1 hit
PF02780, Transketolase_C, 1 hit
PF00456, Transketolase_N, 1 hit
SMARTiView protein in SMART
SM00861, Transket_pyr, 1 hit
SUPFAMiSSF52518, SSF52518, 2 hits
SSF52922, SSF52922, 1 hit
TIGRFAMsiTIGR00232, tktlase_bact, 1 hit
PROSITEiView protein in PROSITE
PS00801, TRANSKETOLASE_1, 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 nameiTKTC_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: Q7SIC9
<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 18, 2006
Last sequence update: December 15, 2003
Last modified: June 2, 2021
This is version 95 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

3D-structure, Direct protein sequencing, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families
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