<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>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. cyclin-dependent protein serine/threonine kinase regulator activity Source: InterPro
2. histone binding Source: SGD

   <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

   • 20855529

3. protein kinase activator activity Source: SGD

   <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

   • 10913169

4. ubiquitin binding Source: SGD

   <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

   • 17198374

<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. cell cycle Source: UniProtKB-KW
2. cell division Source: UniProtKB-KW
3. chromatin remodeling Source: SGD

   <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

   • 20855529

4. positive regulation of protein kinase activity Source: GOC

   <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

   • 10913169

5. positive regulation of transcription, DNA-templated Source: SGD

   <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

   • 20516216

6. regulation of mitotic cell cycle Source: SGD

   <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

   • 2664468
   • 8491379

7. transcription, DNA-templated Source: SGD

   <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

   • 15629725

<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

Organism-specific databases

<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. cyclin-dependent protein kinase holoenzyme complex Source: SGD

   <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

   • 2664468

<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 – 150	150	Cyclin-dependent kinases regulatory subunit		PRO_0000206245	Add BLAST

Proteomic 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

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 binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="http://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated on a monthly basis. Each binary interaction is displayed on a separate line.</p><p><a href='../manual/binary_interactions' target='_top'>More...</a></p>Binary interactionsⁱ

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

Secondary structure

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Is used to indicate the positions of experimentally determined helical regions within the protein sequence.</p><p><a href='../manual/helix' target='_top'>More...</a></p>Helixi	15 – 22	8	Combined sources <p>Manually validated information inferred from a combination of experimental and computational evidence.</p> <p><a href="/manual/evidences#ECO:0000244">More…</a></p> Manual assertion inferred from combination of experimental and computational evidencei PDB:3QY2
<p>Is used to indicate the positions of experimentally determined helical regions within the protein sequence.</p><p><a href='../manual/helix' target='_top'>More...</a></p>Helixi	23 – 27	5	Combined sources <p>Manually validated information inferred from a combination of experimental and computational evidence.</p> <p><a href="/manual/evidences#ECO:0000244">More…</a></p> Manual assertion inferred from combination of experimental and computational evidencei PDB:3QY2
<p>Is used to indicate the positions of experimentally determined beta strands within the protein sequence.</p><p><a href='../manual/strand' target='_top'>More...</a></p>Beta strandi	37 – 45	9	Combined sources <p>Manually validated information inferred from a combination of experimental and computational evidence.</p> <p><a href="/manual/evidences#ECO:0000244">More…</a></p> Manual assertion inferred from combination of experimental and computational evidencei PDB:3QY2
<p>Is used to indicate the positions of experimentally determined helical regions within the protein sequence.</p><p><a href='../manual/helix' target='_top'>More...</a></p>Helixi	48 – 53	6	Combined sources <p>Manually validated information inferred from a combination of experimental and computational evidence.</p> <p><a href="/manual/evidences#ECO:0000244">More…</a></p> Manual assertion inferred from combination of experimental and computational evidencei PDB:3QY2
<p>Is used to indicate the positions of experimentally determined helical regions within the protein sequence.</p><p><a href='../manual/helix' target='_top'>More...</a></p>Helixi	56 – 58	3	Combined sources <p>Manually validated information inferred from a combination of experimental and computational evidence.</p> <p><a href="/manual/evidences#ECO:0000244">More…</a></p> Manual assertion inferred from combination of experimental and computational evidencei PDB:3QY2
<p>Is used to indicate the positions of experimentally determined hydrogen-bonded turns within the protein sequence. These elements correspond to the <span class="caps">DSSP</span> secondary structure code ‘T’.</p><p><a href='../manual/turn' target='_top'>More...</a></p>Turni	61 – 63	3	Combined sources <p>Manually validated information inferred from a combination of experimental and computational evidence.</p> <p><a href="/manual/evidences#ECO:0000244">More…</a></p> Manual assertion inferred from combination of experimental and computational evidencei PDB:3QY2
<p>Is used to indicate the positions of experimentally determined beta strands within the protein sequence.</p><p><a href='../manual/strand' target='_top'>More...</a></p>Beta strandi	64 – 66	3	Combined sources <p>Manually validated information inferred from a combination of experimental and computational evidence.</p> <p><a href="/manual/evidences#ECO:0000244">More…</a></p> Manual assertion inferred from combination of experimental and computational evidencei PDB:3QY2
<p>Is used to indicate the positions of experimentally determined helical regions within the protein sequence.</p><p><a href='../manual/helix' target='_top'>More...</a></p>Helixi	71 – 76	6	Combined sources <p>Manually validated information inferred from a combination of experimental and computational evidence.</p> <p><a href="/manual/evidences#ECO:0000244">More…</a></p> Manual assertion inferred from combination of experimental and computational evidencei PDB:3QY2
<p>Is used to indicate the positions of experimentally determined beta strands within the protein sequence.</p><p><a href='../manual/strand' target='_top'>More...</a></p>Beta strandi	86 – 88	3	Combined sources <p>Manually validated information inferred from a combination of experimental and computational evidence.</p> <p><a href="/manual/evidences#ECO:0000244">More…</a></p> Manual assertion inferred from combination of experimental and computational evidencei PDB:3QY2
<p>Is used to indicate the positions of experimentally determined beta strands within the protein sequence.</p><p><a href='../manual/strand' target='_top'>More...</a></p>Beta strandi	97 – 103	7	Combined sources <p>Manually validated information inferred from a combination of experimental and computational evidence.</p> <p><a href="/manual/evidences#ECO:0000244">More…</a></p> Manual assertion inferred from combination of experimental and computational evidencei PDB:3QY2
<p>Is used to indicate the positions of experimentally determined helical regions within the protein sequence.</p><p><a href='../manual/helix' target='_top'>More...</a></p>Helixi	106 – 116	11	Combined sources <p>Manually validated information inferred from a combination of experimental and computational evidence.</p> <p><a href="/manual/evidences#ECO:0000244">More…</a></p> Manual assertion inferred from combination of experimental and computational evidencei PDB:1QB3

3D structure databases

Miscellaneous 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

Compositional bias

Feature key	Position(s)	Length	Description	Graphical view	Feature identifier	Actions
<p>Describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.</p><p><a href='../manual/compbias' target='_top'>More...</a></p>Compositional biasi	118 – 133	16	Poly-Gln			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
MYHHYHAFQG RKLTDQERAR VLEFQDSIHY SPRYSDDNYE YRHVMLPKAM 
        60         70         80         90        100
LKVIPSDYFN SEVGTLRILT EDEWRGLGIT QSLGWEHYEC HAPEPHILLF 
       110        120        130        140        150
KRPLNYEAEL RAATAAAQQQ QQQQQQQQQQ QQQHQTQSIS NDMQVPPQIS 

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

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 Saccharomyces cerevisiae CKS1 gene, a homolog of the Schizosaccharomyces pombe suc1+ gene, encodes a subunit of the Cdc28 protein kinase complex."
   Hadwiger J.A., Wittenberg C., Mendenhall M.D., Reed S.I.
   Mol. Cell. Biol. 9:2034-2041(1989) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
2. "The sequence of 29.7 kb from the right arm of chromosome II reveals 13 complete open reading frames, of which ten correspond to new genes."
   Becam A.-M., Cullin C., Grzybowska E., Lacroute F., Nasr F., Ozier-Kalogeropoulos O., Palucha A., Slonimski P.P., Zagulski M., Herbert C.J.
   Yeast 10:S1-S11(1994) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
   Strain: ATCC 204508 / S288c.
   
3. "Complete DNA sequence of yeast chromosome II."
   Feldmann H., Aigle M., Aljinovic G., Andre B., Baclet M.C., Barthe C., Baur A., Becam A.-M., Biteau N., Boles E., Brandt T., Brendel M., Brueckner M., Bussereau F., Christiansen C., Contreras R., Crouzet M., Cziepluch C.

   , Demolis N., Delaveau T., Doignon F., Domdey H., Duesterhus S., Dubois E., Dujon B., El Bakkoury M., Entian K.-D., Feuermann M., Fiers W., Fobo G.M., Fritz C., Gassenhuber J., Glansdorff N., Goffeau A., Grivell L.A., de Haan M., Hein C., Herbert C.J., Hollenberg C.P., Holmstroem K., Jacq C., Jacquet M., Jauniaux J.-C., Jonniaux J.-L., Kallesoee T., Kiesau P., Kirchrath L., Koetter P., Korol S., Liebl S., Logghe M., Lohan A.J.E., Louis E.J., Li Z.Y., Maat M.J., Mallet L., Mannhaupt G., Messenguy F., Miosga T., Molemans F., Mueller S., Nasr F., Obermaier B., Perea J., Pierard A., Piravandi E., Pohl F.M., Pohl T.M., Potier S., Proft M., Purnelle B., Ramezani Rad M., Rieger M., Rose M., Schaaff-Gerstenschlaeger I., Scherens B., Schwarzlose C., Skala J., Slonimski P.P., Smits P.H.M., Souciet J.-L., Steensma H.Y., Stucka R., Urrestarazu L.A., van der Aart Q.J.M., Van Dyck L., Vassarotti A., Vetter I., Vierendeels F., Vissers S., Wagner G., de Wergifosse P., Wolfe K.H., Zagulski M., Zimmermann F.K., Mewes H.-W., Kleine K.
   EMBO J. 13:5795-5809(1994) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
   Strain: ATCC 204508 / S288c.
   
4. "The reference genome sequence of Saccharomyces cerevisiae: Then and now."
   Engel S.R., Dietrich F.S., Fisk D.G., Binkley G., Balakrishnan R., Costanzo M.C., Dwight S.S., Hitz B.C., Karra K., Nash R.S., Weng S., Wong E.D., Lloyd P., Skrzypek M.S., Miyasato S.R., Simison M., Cherry J.M.
   G3 (Bethesda) 4:389-398(2014) [PubMed] [Europe PMC] [Abstract]
   Cited for: GENOME REANNOTATION.
   Strain: ATCC 204508 / S288c.
   
5. "Approaching a complete repository of sequence-verified protein-encoding clones for Saccharomyces cerevisiae."
   Hu Y., Rolfs A., Bhullar B., Murthy T.V.S., Zhu C., Berger M.F., Camargo A.A., Kelley F., McCarron S., Jepson D., Richardson A., Raphael J., Moreira D., Taycher E., Zuo D., Mohr S., Kane M.F., Williamson J.

   , Simpson A.J.G., Bulyk M.L., Harlow E., Marsischky G., Kolodner R.D., LaBaer J.
   Genome Res. 17:536-543(2007) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
   Strain: ATCC 204508 / S288c.
   
6. "An essential gene, ESR1, is required for mitotic cell growth, DNA repair and meiotic recombination in Saccharomyces cerevisiae."
   Kato R., Ogawa H.
   Nucleic Acids Res. 22:3104-3112(1994) [PubMed] [Europe PMC] [Abstract]
   Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 32-150.
7. "The Cdk-associated protein Cks1 functions both in G1 and G2 in Saccharomyces cerevisiae."
   Tang Y., Reed S.I.
   Genes Dev. 7:822-832(1993) [PubMed] [Europe PMC] [Abstract]
   Cited for: CHARACTERIZATION.
8. "Global analysis of protein expression in yeast."
   Ghaemmaghami S., Huh W.-K., Bower K., Howson R.W., Belle A., Dephoure N., O'Shea E.K., Weissman J.S.
   Nature 425:737-741(2003) [PubMed] [Europe PMC] [Abstract]
   Cited for: LEVEL OF PROTEIN EXPRESSION [LARGE SCALE ANALYSIS].
9. "Crystal structure and mutational analysis of the Saccharomyces cerevisiae cell cycle regulatory protein Cks1: implications for domain swapping, anion binding and protein interactions."
   Bourne Y., Watson M.H., Arvai A.S., Bernstein S.L., Reed S.I., Tainer J.A.
   Structure 8:841-850(2000) [PubMed] [Europe PMC] [Abstract]
   Cited for: X-RAY CRYSTALLOGRAPHY (3.0 ANGSTROMS).

<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. PDB cross-references
   Index of Protein Data Bank (PDB) cross-references
2. SIMILARITY comments
   Index of protein domains and families
3. Yeast
   Yeast (Saccharomyces cerevisiae): entries, gene names and cross-references to SGD
4. Yeast chromosome II
   Yeast (Saccharomyces cerevisiae) chromosome II: entries and gene names

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