<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

<p>Describes an enzyme regulatory mechanism and reports the components which regulate (by activation or inhibition) the reaction.</p><p><a href='../manual/enzyme_regulation' target='_top'>More...</a></p>Enzyme regulationⁱ

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	78 – 78	1	ATPPROSITE-ProRule 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 PROSITE-ProRule:PRU00159
<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	170 – 170	1	Proton acceptorPROSITE-ProRule 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 PROSITE-ProRule:PRU00159 PROSITE-ProRule:PRU10027

Regions

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>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><p><a href='../manual/np_bind' target='_top'>More...</a></p>Nucleotide bindingi	55 – 63	9	ATPPROSITE-ProRule 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 PROSITE-ProRule:PRU00159

<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

   <p>Inferred from Direct Assay</p> <p>Used to indicate a direct assay for the function, process or component indicated by the GO term.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#ida">GO evidence code guide</a></p> Inferred from direct assayⁱ

   • 9155017

2. protein serine/threonine kinase activity Source: UniProtKB

   <p>Inferred from Direct Assay</p> <p>Used to indicate a direct assay for the function, process or component indicated by the GO term.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#ida">GO evidence code guide</a></p> Inferred from direct assayⁱ

   • 9155017

<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. extrinsic apoptotic signaling pathway in absence of ligand Source: MGI

   <p>Inferred from Mutant Phenotype</p> <p>Describes annotations that are concluded from looking at variations or changes in a gene product such as mutations or abnormal levels and includes techniques such as knockouts, overexpression, anti-sense experiments and use of specific protein inhibitors.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#imp">GO evidence code guide</a></p> Inferred from mutant phenotypeⁱ

   • 17903173

2. intracellular signal transduction Source: UniProtKB

   <p>Inferred from Direct Assay</p> <p>Used to indicate a direct assay for the function, process or component indicated by the GO term.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#ida">GO evidence code guide</a></p> Inferred from direct assayⁱ

   • 9155017

3. peptidyl-serine phosphorylation Source: MGI
4. protein phosphorylation Source: UniProtKB

   <p>Inferred from Direct Assay</p> <p>Used to indicate a direct assay for the function, process or component indicated by the GO term.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#ida">GO evidence code guide</a></p> Inferred from direct assayⁱ

   • 9155017

5. regulation of translational initiation Source: Ensembl
6. response to salt stress Source: UniProtKB

   <p>Inferred from Direct Assay</p> <p>Used to indicate a direct assay for the function, process or component indicated by the GO term.</p> <p>More information in the <a href="http://geneontology.org/page/guide-go-evidence-codes#ida">GO evidence code guide</a></p> Inferred from direct assayⁱ

   • 9155017

<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

Organism-specific databases

<p>Provides information on the disease(s) and phenotype(s) associated with the deficiency of a protein.</p><p><a href='../manual/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechⁱ

Mutagenesis

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.</p><p><a href='../manual/mutagen' target='_top'>More...</a></p>Mutagenesisi	209 – 209	1	T → A: Loss of kinase activity; when associated with T-214. 1 Publication <p>Manually curated information for which there is published experimental evidence.</p> <p><a href="/manual/evidences#ECO:0000269">More…</a></p> Manual assertion based on experiment ini Ref.2 "Mitogen-activated protein kinases activate the serine/threonine kinases Mnk1 and Mnk2." Waskiewicz A.J., Flynn A., Proud C.G., Cooper J.A. EMBO J. 16:1909-1920(1997) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 13-427, FUNCTION, INTERACTION WITH MAPK3; MAPK1 AND P38 KINASE, PHOSPHORYLATION AT THR-209 AND THR-214, MUTAGENESIS OF THR-209 AND THR-214.
<p>Describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.</p><p><a href='../manual/mutagen' target='_top'>More...</a></p>Mutagenesisi	214 – 214	1	T → A: Loss of kinase activity; when associated with T-209. 1 Publication <p>Manually curated information for which there is published experimental evidence.</p> <p><a href="/manual/evidences#ECO:0000269">More…</a></p> Manual assertion based on experiment ini Ref.2 "Mitogen-activated protein kinases activate the serine/threonine kinases Mnk1 and Mnk2." Waskiewicz A.J., Flynn A., Proud C.G., Cooper J.A. EMBO J. 16:1909-1920(1997) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 13-427, FUNCTION, INTERACTION WITH MAPK3; MAPK1 AND P38 KINASE, PHOSPHORYLATION AT THR-209 AND THR-214, MUTAGENESIS OF THR-209 AND THR-214.

<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 – 427	427	MAP kinase-interacting serine/threonine-protein kinase 1		PRO_0000086335	Add BLAST

Amino acid modifications

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Specifies the position and type of each modified residue excluding <a href="/manual/lipid">lipids</a>, <a href="/manual/carbohyd">glycans</a> and <a href="/manual/crosslnk">protein cross-links</a>.</p><p><a href='../manual/mod_res' target='_top'>More...</a></p>Modified residuei	34 – 34	1	Phosphothreonine; by PAK21 Publication <p>Manually curated information for which there is published experimental evidence.</p> <p><a href="/manual/evidences#ECO:0000269">More…</a></p> Manual assertion based on experiment ini Ref.3 "Phosphorylation of Mnk1 by caspase-activated Pak2/gamma-PAK inhibits phosphorylation and interaction of eIF4G with Mnk." Orton K.C., Ling J., Waskiewicz A.J., Cooper J.A., Merrick W.C., Korneeva N.L., Rhoads R.E., Sonenberg N., Traugh J.A. J. Biol. Chem. 279:38649-38657(2004) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION AT THR-34 AND SER-39 BY PAK2.
<p>Specifies the position and type of each modified residue excluding <a href="/manual/lipid">lipids</a>, <a href="/manual/carbohyd">glycans</a> and <a href="/manual/crosslnk">protein cross-links</a>.</p><p><a href='../manual/mod_res' target='_top'>More...</a></p>Modified residuei	39 – 39	1	Phosphoserine; by PAK21 Publication <p>Manually curated information for which there is published experimental evidence.</p> <p><a href="/manual/evidences#ECO:0000269">More…</a></p> Manual assertion based on experiment ini Ref.3 "Phosphorylation of Mnk1 by caspase-activated Pak2/gamma-PAK inhibits phosphorylation and interaction of eIF4G with Mnk." Orton K.C., Ling J., Waskiewicz A.J., Cooper J.A., Merrick W.C., Korneeva N.L., Rhoads R.E., Sonenberg N., Traugh J.A. J. Biol. Chem. 279:38649-38657(2004) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION AT THR-34 AND SER-39 BY PAK2.
<p>Specifies the position and type of each modified residue excluding <a href="/manual/lipid">lipids</a>, <a href="/manual/carbohyd">glycans</a> and <a href="/manual/crosslnk">protein cross-links</a>.</p><p><a href='../manual/mod_res' target='_top'>More...</a></p>Modified residuei	209 – 209	1	Phosphothreonine1 Publication <p>Manually curated information for which there is published experimental evidence.</p> <p><a href="/manual/evidences#ECO:0000269">More…</a></p> Manual assertion based on experiment ini Ref.2 "Mitogen-activated protein kinases activate the serine/threonine kinases Mnk1 and Mnk2." Waskiewicz A.J., Flynn A., Proud C.G., Cooper J.A. EMBO J. 16:1909-1920(1997) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 13-427, FUNCTION, INTERACTION WITH MAPK3; MAPK1 AND P38 KINASE, PHOSPHORYLATION AT THR-209 AND THR-214, MUTAGENESIS OF THR-209 AND THR-214.
<p>Specifies the position and type of each modified residue excluding <a href="/manual/lipid">lipids</a>, <a href="/manual/carbohyd">glycans</a> and <a href="/manual/crosslnk">protein cross-links</a>.</p><p><a href='../manual/mod_res' target='_top'>More...</a></p>Modified residuei	214 – 214	1	Phosphothreonine1 Publication <p>Manually curated information for which there is published experimental evidence.</p> <p><a href="/manual/evidences#ECO:0000269">More…</a></p> Manual assertion based on experiment ini Ref.2 "Mitogen-activated protein kinases activate the serine/threonine kinases Mnk1 and Mnk2." Waskiewicz A.J., Flynn A., Proud C.G., Cooper J.A. EMBO J. 16:1909-1920(1997) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 13-427, FUNCTION, INTERACTION WITH MAPK3; MAPK1 AND P38 KINASE, PHOSPHORYLATION AT THR-209 AND THR-214, MUTAGENESIS OF THR-209 AND THR-214.
<p>Specifies the position and type of each modified residue excluding <a href="/manual/lipid">lipids</a>, <a href="/manual/carbohyd">glycans</a> and <a href="/manual/crosslnk">protein cross-links</a>.</p><p><a href='../manual/mod_res' target='_top'>More...</a></p>Modified residuei	344 – 344	1	PhosphothreonineBy similarity

<p>Describes post-translational modifications (PTMs). This subsection complements the information provided at the sequence level or describes modifications for which position-specific data is not yet available.</p><p><a href='../manual/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationⁱ

<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 - PTMⁱ

Proteomic databases

PTM databases

<p>Provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.</p><p><a href='../manual/expression_section' target='_top'>More...</a></p>Expressionⁱ

<p>Provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified ‘at the protein level’.</p><p><a href='../manual/tissue_specificity' target='_top'>More...</a></p>Tissue specificityⁱ

Gene expression 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

Domains and Repeats

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.</p><p><a href='../manual/domain' target='_top'>More...</a></p>Domaini	49 – 333	285	Protein kinasePROSITE-ProRule 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 PROSITE-ProRule:PRU00159			Add BLAST

<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
MVSSQKLEKP IEMGSSEPLP IVDSDKRRKK KRKTRATDSL PGKFEDVYQL 
        60         70         80         90        100
TSELLGEGAY AKVQGAVNLQ SGKEYAVKII EKQAGHSRSR VFREVETLYQ 
       110        120        130        140        150
CQGNRNILEL IEFFEDDTRF YLVFEKLQGG SILAHIQKRK HFNEREASRV 
       160        170        180        190        200
VRDVATALDF LHTKGIAHRD LKPENILCES PEKVSPVKIC DFDLGSGVKL 
       210        220        230        240        250
NNSCTPITTP ELTTPCGSAE YMAPEVVEVF RDEATFYDKR CDLWSLGVVL 
       260        270        280        290        300
YIMLSGYPPF VGHCGADCGW DRGEVCRMCQ NKLFESIQEG KYEFPDKDWA 
       310        320        330        340        350
HISNEAKDLI SKLLVRDAKQ RLSAAQVLQH PWVQGQAPER GLPTPQVLQR 
       360        370        380        390        400
NSSTMDLTLF AAEAIALNRQ LSQHEENELA EEQEALAEGL CSMKLSPPSK 
       410        420 
SRLARRRALA QAGRSRDANP CLTPAGL                       

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

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

PTM databases

Proteomic databases

Protocols and materials databases

Genome annotation databases

Organism-specific databases

Phylogenomic databases

Enzyme and pathway databases

Miscellaneous databases

Gene expression 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. "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
   The MGC Project Team
   Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
   Tissue: Mammary gland.
   
2. "Mitogen-activated protein kinases activate the serine/threonine kinases Mnk1 and Mnk2."
   Waskiewicz A.J., Flynn A., Proud C.G., Cooper J.A.
   EMBO J. 16:1909-1920(1997) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 13-427, FUNCTION, INTERACTION WITH MAPK3; MAPK1 AND P38 KINASE, PHOSPHORYLATION AT THR-209 AND THR-214, MUTAGENESIS OF THR-209 AND THR-214.
   Tissue: Embryo.
   
3. "Phosphorylation of Mnk1 by caspase-activated Pak2/gamma-PAK inhibits phosphorylation and interaction of eIF4G with Mnk."
   Orton K.C., Ling J., Waskiewicz A.J., Cooper J.A., Merrick W.C., Korneeva N.L., Rhoads R.E., Sonenberg N., Traugh J.A.
   J. Biol. Chem. 279:38649-38657(2004) [PubMed] [Europe PMC] [Abstract]
   Cited for: PHOSPHORYLATION AT THR-34 AND SER-39 BY PAK2.

<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. MGD cross-references
   Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
2. Human and mouse protein kinases
   Human and mouse protein kinases: classification and index
3. 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