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Protein

DNA polymerase III subunit alpha

Gene

dnaE

Organism
Thermus aquaticus
Status
Reviewed-Annotation score:

Annotation score:2 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

DNA polymerase III is a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria. This DNA polymerase also exhibits 3' to 5' exonuclease activity. The alpha chain is the DNA polymerase (By similarity).By similarity

<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>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 functionDNA-directed DNA polymerase, Nucleotidyltransferase, Transferase
Biological processDNA replication

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
2.7.7.7 6334

<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:
DNA polymerase III subunit alpha (EC:2.7.7.7)
<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:dnaE
<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>OrganismiThermus aquaticus
<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 identifieri271 [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 lineageiBacteriaDeinococcus-ThermusDeinococciThermalesThermaceaeThermus

<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

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

<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_00001033541 – 1220DNA polymerase III subunit alphaAdd BLAST1220

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
Q9XDH5

<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

DNA polymerase III contains a core (composed of alpha, epsilon and theta chains) that associates with a tau subunit. This core dimerizes to form the PolIII' complex. PolIII' associates with the gamma complex (composed of gamma, delta, delta', psi and chi chains) and with the beta chain to form the complete DNA polymerase III complex (By similarity).By similarity

<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

11220
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

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ProteinModelPortali
Q9XDH5

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

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SMRi
Q9XDH5

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

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MobiDBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

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EvolutionaryTracei
Q9XDH5

<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

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105C0B Bacteria
COG0587 LUCA
COG1372 LUCA

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR011708 DNA_pol3_alpha_NTPase_dom
IPR029460 DNAPol_HHH
IPR004013 PHP_dom
IPR003141 Pol/His_phosphatase_N
IPR016195 Pol/histidinol_Pase-like
IPR004805 PolC_alpha

The PANTHER Classification System

More...
PANTHERi
PTHR32294 PTHR32294, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF07733 DNA_pol3_alpha, 1 hit
PF14579 HHH_6, 1 hit
PF02811 PHP, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00481 POLIIIAc, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF89550 SSF89550, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR00594 polc, 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>.<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.

Q9XDH5-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MGSKLKFAHL HQHTQFSLLD GAAKLQDLLK WVKETTPEDP ALAMTDHGNL
60 70 80 90 100
FGAVEFYKKA TAMGVKPIIG YEAYVAAESR FDRKRGKGLD GGYFHLTLLA
110 120 130 140 150
KDFTGYQNLV RLASRAYLEG FYEKPRIDRE ILREHAQGLI ALSGCLGAEI
160 170 180 190 200
PQFILQDRLD LAEARLNEDL SIFGDRFFIE IQNHGLPEQK KVNQVLKEFA
210 220 230 240 250
RKYGLGMVAT NDGHYVRKED ARAHEVLLAI QSKTTLDDPE RWRFPCDEFY
260 270 280 290 300
VKTPEEMRAM LPEAEWGDEP FDNTVEIARM CDVDLPIGDK MVYRIPRFPL
310 320 330 340 350
PEGRTEAQYL RELTFLGLLR RYPDRITEAF YREVLRLLGT MPPHGDERAL
360 370 380 390 400
AEALARVEEK AWEELRKRLP PLEGVREWTA EAILHRALYE LSVIERMGFP
410 420 430 440 450
GYFLIVQDYI NWARGHGVSV GPGRGSAAGS LVAYAVGITN IDPLRFGLLF
460 470 480 490 500
ERFLNPERVS MPDIDTDFSD RERDRVIQYV RERYGEDKVA QIGTFGSLAS
510 520 530 540 550
KAALKDVARV YGIPHKKAEE LAKLIPVQFG KPKPLQEAIQ VVPELRAEME
560 570 580 590 600
KDERIRQVIE VAMRLEGLNR HASVHAAGVV IAAEPLTDLV PLMRDQEGRP
610 620 630 640 650
VTQYDMGAVE ALGLLKMDFL GLRTLTFLDE ARRIVKESKG VELDYDRLPL
660 670 680 690 700
DDPKTFELLS RGETKGVFQL ESGGMTATVR GLKPRRLEDI IALVSLYRPG
710 720 730 740 750
PMEHIPTYIR RHHGQEPVSY AEFPHAEKYL RPILDETYGI PVYQEQIMQI
760 770 780 790 800
ASQVAGYSLG EADLLRRAMG KKRVEEMQKH RERFVRGAKE RGVPEEEANR
810 820 830 840 850
LFDMLEAFAN YGFNKSHAAA YSLLSYQTAY VKAHYPVEFM AALLSVERHD
860 870 880 890 900
SDKVAEYIRD ARALGIPVLP PDVNRSGFDF KVVGEEILFG LSAVKNVGEM
910 920 930 940 950
AARAILEERE RGGPFKSLGD FLKRLPEQVV NKRALESLVK AGALDAFGDR
960 970 980 990 1000
ARLLASLEPL LRWAAETRER GRSGLVGLFA EVEEPPLVEA SPLDEITMLR
1010 1020 1030 1040 1050
YEKEALGIYV SGHPVLRYPG LREVASCTIE ELSEFVRELP GKPKVLLSGM
1060 1070 1080 1090 1100
VEEVVRKPTR SGGMMARFTL SDETGALEVV VFGRAYEGVS PKLKEDIPLL
1110 1120 1130 1140 1150
VLAEVEKGEE LRVLAQAVWT LEEVLEAPKA LEVEVDHALL DEKGVARLKS
1160 1170 1180 1190 1200
LLDEHPGSLP VYLRVLGPFG EALFALREVR VGEEALGLLE AEGYRAYLVP
1210 1220
DREVFLQGNG GGPKEEVVPF
Length:1,220
Mass (Da):137,390
Last modified:November 1, 1999 - 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:i64EC8B0CE1F44A2B
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

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DDBJi
Links Updated
AF062920 Genomic DNA Translation: AAD44403.1

<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
AF062920 Genomic DNA Translation: AAD44403.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

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RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2HPIX-ray3.00A1-1220[»]
2HPMX-ray3.70A1-1220[»]
3E0DX-ray4.60A/B1-1220[»]
4IQJX-ray3.20A/B/C/D1-1220[»]
ProteinModelPortaliQ9XDH5
SMRiQ9XDH5
ModBaseiSearch...
MobiDBiSearch...

Proteomic databases

PRIDEiQ9XDH5

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Phylogenomic databases

eggNOGiENOG4105C0B Bacteria
COG0587 LUCA
COG1372 LUCA

Enzyme and pathway databases

BRENDAi2.7.7.7 6334

Miscellaneous databases

EvolutionaryTraceiQ9XDH5

Family and domain databases

InterProiView protein in InterPro
IPR011708 DNA_pol3_alpha_NTPase_dom
IPR029460 DNAPol_HHH
IPR004013 PHP_dom
IPR003141 Pol/His_phosphatase_N
IPR016195 Pol/histidinol_Pase-like
IPR004805 PolC_alpha
PANTHERiPTHR32294 PTHR32294, 1 hit
PfamiView protein in Pfam
PF07733 DNA_pol3_alpha, 1 hit
PF14579 HHH_6, 1 hit
PF02811 PHP, 1 hit
SMARTiView protein in SMART
SM00481 POLIIIAc, 1 hit
SUPFAMiSSF89550 SSF89550, 1 hit
TIGRFAMsiTIGR00594 polc, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
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 nameiDPO3A_THEAQ
<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: Q9XDH5
<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: June 1, 2001
Last sequence update: November 1, 1999
Last modified: December 5, 2018
This is version 86 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 programProkaryotic 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

Documents

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