<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

Sites

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Is used for enzymes and indicates the residues directly involved in catalysis.</p><p><a href='../manual/act_site' target='_top'>More...</a></p>Active sitei	188 – 188	1	Proton donor/acceptorBy similarity
<p>Is used for enzymes and indicates the residues directly involved in catalysis.</p><p><a href='../manual/act_site' target='_top'>More...</a></p>Active sitei	318 – 318	1	By 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	319 – 319	1	SubstrateUniRule annotation <p>Manual validated information which has been generated by the UniProtKB automatic annotation system.</p> <p><a href="/manual/evidences#ECO:0000255">More…</a></p> Manual assertion according to rulesi HAMAP-Rule:MF_00743
<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	331 – 331	1	Important for catalytic activityBy 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. fumarate hydratase 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. fumarate metabolic process Source: InterPro
2. tricarboxylic acid cycle Source: UniProtKB-HAMAP

<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>Provides information on the location and the topology of the mature protein in the cell.</p><p><a href='../manual/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationⁱ

<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 - Cellular componentⁱ

1. tricarboxylic acid cycle enzyme complex 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 - Cellular componentⁱ

<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 – 467	467	Fumarate hydratase class II		PRO_0000161310	Add BLAST

Proteomic databases

<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

<p>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 ‘Function’ section).</p><p><a href='../manual/subunit_structure' target='_top'>More...</a></p>Subunit structureⁱ

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

Region

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes a region of interest that cannot be described in other subsections.</p><p><a href='../manual/region' target='_top'>More...</a></p>Regioni	98 – 100	3	Substrate bindingUniRule annotation <p>Manual validated information which has been generated by the UniProtKB automatic annotation system.</p> <p><a href="/manual/evidences#ECO:0000255">More…</a></p> Manual assertion according to rulesi HAMAP-Rule:MF_00743
<p>Describes a region of interest that cannot be described in other subsections.</p><p><a href='../manual/region' target='_top'>More...</a></p>Regioni	129 – 132	4	B siteUniRule annotation <p>Manual validated information which has been generated by the UniProtKB automatic annotation system.</p> <p><a href="/manual/evidences#ECO:0000255">More…</a></p> Manual assertion according to rulesi HAMAP-Rule:MF_00743
<p>Describes a region of interest that cannot be described in other subsections.</p><p><a href='../manual/region' target='_top'>More...</a></p>Regioni	139 – 141	3	Substrate bindingUniRule annotation <p>Manual validated information which has been generated by the UniProtKB automatic annotation system.</p> <p><a href="/manual/evidences#ECO:0000255">More…</a></p> Manual assertion according to rulesi HAMAP-Rule:MF_00743
<p>Describes a region of interest that cannot be described in other subsections.</p><p><a href='../manual/region' target='_top'>More...</a></p>Regioni	187 – 188	2	Substrate bindingUniRule annotation <p>Manual validated information which has been generated by the UniProtKB automatic annotation system.</p> <p><a href="/manual/evidences#ECO:0000255">More…</a></p> Manual assertion according to rulesi HAMAP-Rule:MF_00743
<p>Describes a region of interest that cannot be described in other subsections.</p><p><a href='../manual/region' target='_top'>More...</a></p>Regioni	324 – 326	3	Substrate bindingUniRule annotation <p>Manual validated information which has been generated by the UniProtKB automatic annotation system.</p> <p><a href="/manual/evidences#ECO:0000255">More…</a></p> Manual assertion according to rulesi HAMAP-Rule:MF_00743

<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
MNTVRSEKDS MGAIDVPADK LWGAQTQRSL EHFRISTEKM PTSLIHALAL 
        60         70         80         90        100
TKRAAAKVNE DLDLLSEEKA SAIRQAADEV LAGQHDDEFP LAIWQTGSGT 
       110        120        130        140        150
QSNMNMNEVL ANRASELLGG VRGMERKVHP NDDVNKSQSS NDVFPTAMHV 
       160        170        180        190        200
AALLALRKQL IPQLKTLTQT LSEKSRAFAD IVKIGRTHLQ DATPLTLGQE 
       210        220        230        240        250
ISGWVAMLEH NLKHIEYSLP HVAELALGGT AVGTGLNTHP EYARRVADEL 
       260        270        280        290        300
AVITCAPFVT APNKFEALAT CDALVQAHGA LKGLAASLMK IANDVRWLAS 
       310        320        330        340        350
GPRCGIGEIS IPENEPGSSI MPGKVNPTQC EALTMLCCQV MGNDVAINMG 
       360        370        380        390        400
GASGNFELNV FRPMVIHNFL QSVRLLADGM ESFNKHCAVG IEPNRERINQ 
       410        420        430        440        450
LLNESLMLVT ALNTHIGYDK AAEIAKKAHK EGLTLKAAAL ALGYLSEAEF 
       460 
DSWVRPEQMV GSMKAGR                                  

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

Proteomic 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 sequence of Shigella flexneri 2a: insights into pathogenicity through comparison with genomes of Escherichia coli K12 and O157."
   Jin Q., Yuan Z., Xu J., Wang Y., Shen Y., Lu W., Wang J., Liu H., Yang J., Yang F., Zhang X., Zhang J., Yang G., Wu H., Qu D., Dong J., Sun L., Xue Y.

   , Zhao A., Gao Y., Zhu J., Kan B., Ding K., Chen S., Cheng H., Yao Z., He B., Chen R., Ma D., Qiang B., Wen Y., Hou Y., Yu J.
   Nucleic Acids Res. 30:4432-4441(2002) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
   Strain: 301 / Serotype 2a.
   
2. "Complete genome sequence and comparative genomics of Shigella flexneri serotype 2a strain 2457T."
   Wei J., Goldberg M.B., Burland V., Venkatesan M.M., Deng W., Fournier G., Mayhew G.F., Plunkett G. III, Rose D.J., Darling A., Mau B., Perna N.T., Payne S.M., Runyen-Janecky L.J., Zhou S., Schwartz D.C., Blattner F.R.
   Infect. Immun. 71:2775-2786(2003) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
   Strain: ATCC 700930 / 2457T / Serotype 2a.
   

<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

Miscellaneous

<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