<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>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><p><a href='../manual/cofactor' target='_top'>More...</a></p>Cofactorⁱ

• Mg²⁺By similarity
• K(+)By similarity

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

Sites

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.</p><p><a href='../manual/binding' target='_top'>More...</a></p>Binding sitei	32 – 32	1	SubstrateBy similarity
<p>Indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.</p><p><a href='../manual/metal' target='_top'>More...</a></p>Metal bindingi	34 – 34	1	PotassiumBy similarity
<p>Indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.</p><p><a href='../manual/metal' target='_top'>More...</a></p>Metal bindingi	36 – 36	1	PotassiumBy similarity
<p>Indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.</p><p><a href='../manual/metal' target='_top'>More...</a></p>Metal bindingi	66 – 66	1	PotassiumBy similarity
<p>Indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.</p><p><a href='../manual/metal' target='_top'>More...</a></p>Metal bindingi	67 – 67	1	Potassium; via carbonyl oxygenBy similarity
<p>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><p><a href='../manual/site' target='_top'>More...</a></p>Sitei	219 – 219	1	Transition state stabilizerBy similarity
<p>Indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.</p><p><a href='../manual/metal' target='_top'>More...</a></p>Metal bindingi	221 – 221	1	MagnesiumBy similarity
<p>Describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.</p><p><a href='../manual/binding' target='_top'>More...</a></p>Binding sitei	244 – 244	1	Substrate; via amide nitrogenBy similarity
<p>Indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.</p><p><a href='../manual/metal' target='_top'>More...</a></p>Metal bindingi	245 – 245	1	MagnesiumBy similarity
<p>Describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.</p><p><a href='../manual/binding' target='_top'>More...</a></p>Binding sitei	245 – 245	1	Substrate; via amide nitrogenBy similarity
<p>Describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.</p><p><a href='../manual/binding' target='_top'>More...</a></p>Binding sitei	277 – 277	1	SubstrateBy similarity

<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. ATP binding Source: UniProtKB-KW
2. magnesium ion binding Source: InterPro
3. potassium ion binding Source: InterPro
4. pyruvate kinase activity Source: UniProtKB-EC

<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. glycolytic process Source: UniProtKB-UniPathway

<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

<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 - Ligandⁱ

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 – 585	585	Pyruvate kinase		PRO_0000294133	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
MRKTKIVCTI GPASESEEMI EKLINAGMNV ARLNFSHGSH EEHKGRIDTI 
        60         70         80         90        100
RKVAKRLDKI VAILLDTKGP EIRTHNMKDG IIELERGNEV IVSMNEVEGT 
       110        120        130        140        150
PEKFSVTYEN LINDVQVGSY ILLDDGLIEL QVKDIDHAKK EVKCDILNSG 
       160        170        180        190        200
ELKNKKGVNL PGVRVSLPGI TEKDAEDIRF GIKENVDFIA ASFVRRPSDV 
       210        220        230        240        250
LEIREILEEQ KANISVFPKI ENQEGIDNIA EILEVSDGLM VARGDMGVEI 
       260        270        280        290        300
PPEKVPMVQK DLIRQCNKLG KPVITATQML DSMQRNPRAT RAEASDVANA 
       310        320        330        340        350
IYDGTDAVML SGETAAGLYP EEAVKTMRNI AVSAEAAQDY KKLLSDRTKL 
       360        370        380        390        400
VETSLVNAIG ISVAHTALNL NVKAIVAATE SGSTARTISK YRPHSDIIAV 
       410        420        430        440        450
TPSEETARQC SIVWGVQPVV KKGRKSTDAL LNNAVATAVE TGRVSNGDLI 
       460        470        480        490        500
IITAGVPTGE TGTTNMMKIH LVGDEIANGQ GIGRGSVVGT TLVAETVKDL 
       510        520        530        540        550
EGKDLSDKVI VTNSIDETFV PYVEKALGLI TEENGITSPS AIVGLEKGIP 
       560        570        580 
TVVGVEKAVK NISNNMLVTI DAAQGKIFEG YANVL            

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. "Genome and virulence determinants of high virulence community-acquired MRSA."
   Baba T., Takeuchi F., Kuroda M., Yuzawa H., Aoki K., Oguchi A., Nagai Y., Iwama N., Asano K., Naimi T., Kuroda H., Cui L., Yamamoto K., Hiramatsu K.
   Lancet 359:1819-1827(2002) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
   Strain: MW2.
   

<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