<p>Provides any useful information about the protein, mostly biological knowledge.</p><p><a href='../manual/function_section' target='_top'>More...</a></p>Functionⁱ

<p>Describes the catalytic activity of an enzyme, i.e. the chemical reaction it catalyzes. This information usually correlates with the presence of an EC (Enzyme Commission) number in the ‘Names and taxonomy’ section.</p><p><a href='../manual/catalytic_activity' target='_top'>More...</a></p>Catalytic activityⁱ

<p>Describes the metabolic pathway(s) associated with a protein.</p><p><a href='../manual/pathway' target='_top'>More...</a></p>Pathwayⁱ

<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><p><a href='../manual/gene_ontology' target='_top'>More...</a></p>GO - Molecular functionⁱ

1. amino acid binding Source: InterPro
2. aspartate carbamoyltransferase activity Source: UniProtKB-HAMAP

<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><p><a href='../manual/gene_ontology' target='_top'>More...</a></p>GO - Biological processⁱ

1. 'de novo' pyrimidine nucleobase biosynthetic process Source: InterPro
2. 'de novo' UMP biosynthetic process Source: UniProtKB-UniPathway
3. cellular amino acid metabolic process Source: InterPro

<p>UniProtKB Keywords constitute a <a target="_top" href="/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>Keywords - Molecular functionⁱ

<p>UniProtKB Keywords constitute a <a target="_top" href="/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>Keywords - Biological processⁱ

Enzyme and pathway databases

<p>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><p><a href='../manual/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyⁱ

<p>Describes post-translational modifications (PTMs) and/or processing events.</p><p><a href='../manual/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingⁱ

Molecule processing

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes the extent of a polypeptide chain in the mature protein following processing.</p><p><a href='../manual/chain' target='_top'>More...</a></p>Chaini	1 – 339	339	Aspartate carbamoyltransferase		PRO_0000301605	Add BLAST

<p>Provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.</p><p><a href='../manual/interaction_section' target='_top'>More...</a></p>Interactionⁱ

Protein-protein interaction databases

<p>Provides information on the tertiary structure of a protein.</p><p><a href='../manual/structure_section' target='_top'>More...</a></p>Structureⁱ

3D structure databases

<p>Provides information on sequence similarities with other proteins and the domain(s) present in a protein.</p><p><a href='../manual/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsⁱ

<p>Provides information about the sequence similarity with other proteins.</p><p><a href='../manual/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesⁱ

Phylogenomic databases

Family and domain databases

<p>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 length and molecular weight.</p><p><a href='../manual/sequences_section' target='_top'>More...</a></p>Sequenceⁱ

<p>Indicates if the canonical sequence displayed by default in the entry is complete or not.</p><p><a href='../manual/sequence_status' target='_top'>More...</a></p>Sequence statusⁱ: Complete.

        10         20         30         40         50
MNNWKHNHVL DLSTFSLEDY KTVLELTTRF KDVHKSSSKK LPALHGRLIA 
        60         70         80         90        100
NLFFEPSTRT RTSFELAAKR LSADVQNFSV SSSSLSKGET PLDTILTYIS 
       110        120        130        140        150
MGADILVIRH ESTNVPAELA NYVDINNINT SILNAGDGFH SHPSQGLLDL 
       160        170        180        190        200
FTLATFFNPN EPSTNSLLNK KITIVGDILH SRVARSNLWA LTACGAEVTL 
       210        220        230        240        250
CGPPSLLPEE FIDFVQNPRL GQNFDPINKR GSVFIKRSLK DALKNSDAVM 
       260        270        280        290        300
TLRLQKERMK QNMLKDLDSY YAQYGITHES LKWCEKKVPV LHPGPVNRGV 
       310        320        330 
EISNRLVEDN SINLISKQVE NGIPTRMALL YLLGLNKKD            

Sequence databases

Genome annotation databases

<p>Is used to point to information related to entries and found in data collections other than UniProtKB.</p><p><a href='../manual/cross_references_section' target='_top'>More...</a></p>Cross-referencesⁱ

Sequence databases

3D structure databases

Protein-protein interaction databases

Protocols and materials databases

Genome annotation databases

Phylogenomic databases

Enzyme and pathway databases

Family and domain databases

<p>Contains the literature citations that are the sources of data used to annotate the entry. Each reference is numbered and contains several subsections allowing a precise description of a given citation.</p><p><a href='../manual/publications_section' target='_top'>More...</a></p>Publicationsⁱ

1. "Patterns and implications of gene gain and loss in the evolution of Prochlorococcus."
   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S., Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M., Richardson P., Chisholm S.W.
   PLoS Genet. 3:2515-2528(2007) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
   Strain: NATL1A.
   

<p>Provides general information on the entry.</p><p><a href='../manual/entry_information_section' target='_top'>More...</a></p>Entry informationⁱ

<p>Contains any relevant information that doesn’t fit in any other defined sections</p><p><a href='../manual/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousⁱ

<p>UniProtKB Keywords constitute a <a target="_top" href="/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>Keywords - Technical termⁱ

Documents

1. PATHWAY comments
   Index of metabolic and biosynthesis pathways
2. SIMILARITY comments
   Index of protein domains and families

External Data

<p>Provides links to the UniProt Reference Clusters (<a href="/help/uniref">UniRef</a>). UniRef consists of clusters for UniProtKB sequences (including isoforms) and selected UniParc sequences, in order to obtain complete coverage of the sequence space at resolutions of 100%, 90% and 50% identity.</p><p><a href='../manual/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsⁱ