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Entry version 167 (13 Feb 2019)
Sequence version 1 (01 Nov 1996)
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Protein

Cytosine deaminase

Gene

FCY1

Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

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

Converts cytosine to uracil or 5-methylcytosine to thymine by deaminating carbon number 4.

Miscellaneous

Present with 5180 molecules/cell in log phase SD medium.1 Publication

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<p>This subsection of the ‘Function’ section 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><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

Zn2+By similarity

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi: UMP biosynthesis via salvage pathway

This protein is involved in step 1 of the subpathway that synthesizes uracil from cytosine.
Proteins known to be involved in this subpathway in this organism are:
  1. Cytosine deaminase (FCY1)
This subpathway is part of the pathway UMP biosynthesis via salvage pathway, which is itself part of Pyrimidine metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes uracil from cytosine, the pathway UMP biosynthesis via salvage pathway and in Pyrimidine metabolism.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Function’ section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei51Substrate1
<p>This subsection of the ‘Function’ section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi62Zinc; catalytic1
<p>This subsection of the ‘Function’ section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei64Proton donor1
Metal bindingi91Zinc; catalytic1
Metal bindingi94Zinc; catalytic1
Binding sitei155Substrate1

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

GO - Biological processi

  • cytidine metabolic process Source: SGD
  • cytosine metabolic process Source: SGD
  • pyrimidine-containing compound salvage Source: SGD
  • UMP salvage Source: UniProtKB-UniPathway

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/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>Keywordsi

Molecular functionHydrolase
LigandMetal-binding, Zinc

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
MetaCyc:YPR062W-MONOMER
YEAST:YPR062W-MONOMER

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
3.5.4.1 984

UniPathway: a resource for the exploration and annotation of metabolic pathways

More...
UniPathwayi
UPA00574;UER00635

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

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Cytosine deaminase (EC:3.5.4.1)
Alternative name(s):
Cytosine aminohydrolase
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:FCY1
Ordered Locus Names:YPR062W
ORF Names:YP9499.17
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiSaccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri559292 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeSaccharomyces
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000002311 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome XVI

Organism-specific databases

Eukaryotic Pathogen Database Resources

More...
EuPathDBi
FungiDB:YPR062W

Saccharomyces Genome Database

More...
SGDi
S000006266 FCY1

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

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

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

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001717021 – 158Cytosine deaminaseAdd BLAST158

Proteomic databases

MaxQB - The MaxQuant DataBase

More...
MaxQBi
Q12178

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
Q12178

PRoteomics IDEntifications database

More...
PRIDEi
Q12178

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

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section 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 <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer.1 Publication

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...
BioGridi
36235, 61 interactors

Database of interacting proteins

More...
DIPi
DIP-1662N

Protein interaction database and analysis system

More...
IntActi
Q12178, 2 interactors

Molecular INTeraction database

More...
MINTi
Q12178

STRING: functional protein association networks

More...
STRINGi
4932.YPR062W

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1158
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1OX7X-ray1.43A/B1-158[»]
1P6OX-ray1.14A/B1-158[»]
1RB7X-ray2.10A/B1-158[»]
1UAQX-ray1.60A/B1-158[»]
1YSBX-ray1.70A/B1-158[»]
1YSDX-ray1.90A/B1-158[»]
2O3KX-ray2.30A/B1-158[»]

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

More...
ProteinModelPortali
Q12178

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
Q12178

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
Q12178

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

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section 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><a href='/help/domain' target='_top'>More...</a></p>Domaini9 – 129CMP/dCMP-type deaminasePROSITE-ProRule annotationAdd BLAST121

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi129 – 132Poly-Val4

<p>This subsection of the ‘Family and domains’ section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000085050

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q12178

KEGG Orthology (KO)

More...
KOi
K03365

Identification of Orthologs from Complete Genome Data

More...
OMAi
ILLYKIP

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR016192 APOBEC/CMP_deaminase_Zn-bd
IPR002125 CMP_dCMP_dom
IPR016193 Cytidine_deaminase-like

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00383 dCMP_cyt_deam_1, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF53927 SSF53927, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00903 CYT_DCMP_DEAMINASES_1, 1 hit
PS51747 CYT_DCMP_DEAMINASES_2, 1 hit

<p>This section 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 <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

Q12178-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MVTGGMASKW DQKGMDIAYE EAALGYKEGG VPIGGCLINN KDGSVLGRGH
60 70 80 90 100
NMRFQKGSAT LHGEISTLEN CGRLEGKVYK DTTLYTTLSP CDMCTGAIIM
110 120 130 140 150
YGIPRCVVGE NVNFKSKGEK YLQTRGHEVV VVDDERCKKI MKQFIDERPQ

DWFEDIGE
Length:158
Mass (Da):17,507
Last modified:November 1, 1996 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i19DB41E9AF26ADDC
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
U55193 Genomic DNA Translation: AAC13409.1
AF005261 Genomic DNA Translation: AAB67713.1
Z71255 Genomic DNA Translation: CAA95006.1
Z49219 Genomic DNA Translation: CAA89179.1
BK006949 Genomic DNA Translation: DAA11483.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S54083

NCBI Reference Sequences

More...
RefSeqi
NP_015387.1, NM_001184159.1

Genome annotation databases

Ensembl fungal genome annotation project

More...
EnsemblFungii
YPR062W_mRNA; YPR062W_mRNA; YPR062W

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
856175

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
sce:YPR062W

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

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

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U55193 Genomic DNA Translation: AAC13409.1
AF005261 Genomic DNA Translation: AAB67713.1
Z71255 Genomic DNA Translation: CAA95006.1
Z49219 Genomic DNA Translation: CAA89179.1
BK006949 Genomic DNA Translation: DAA11483.1
PIRiS54083
RefSeqiNP_015387.1, NM_001184159.1

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1OX7X-ray1.43A/B1-158[»]
1P6OX-ray1.14A/B1-158[»]
1RB7X-ray2.10A/B1-158[»]
1UAQX-ray1.60A/B1-158[»]
1YSBX-ray1.70A/B1-158[»]
1YSDX-ray1.90A/B1-158[»]
2O3KX-ray2.30A/B1-158[»]
ProteinModelPortaliQ12178
SMRiQ12178
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi36235, 61 interactors
DIPiDIP-1662N
IntActiQ12178, 2 interactors
MINTiQ12178
STRINGi4932.YPR062W

Proteomic databases

MaxQBiQ12178
PaxDbiQ12178
PRIDEiQ12178

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblFungiiYPR062W_mRNA; YPR062W_mRNA; YPR062W
GeneIDi856175
KEGGisce:YPR062W

Organism-specific databases

EuPathDBiFungiDB:YPR062W
SGDiS000006266 FCY1

Phylogenomic databases

HOGENOMiHOG000085050
InParanoidiQ12178
KOiK03365
OMAiILLYKIP

Enzyme and pathway databases

UniPathwayi
UPA00574;UER00635

BioCyciMetaCyc:YPR062W-MONOMER
YEAST:YPR062W-MONOMER
BRENDAi3.5.4.1 984

Miscellaneous databases

EvolutionaryTraceiQ12178

Protein Ontology

More...
PROi
PR:Q12178

Family and domain databases

InterProiView protein in InterPro
IPR016192 APOBEC/CMP_deaminase_Zn-bd
IPR002125 CMP_dCMP_dom
IPR016193 Cytidine_deaminase-like
PfamiView protein in Pfam
PF00383 dCMP_cyt_deam_1, 1 hit
SUPFAMiSSF53927 SSF53927, 1 hit
PROSITEiView protein in PROSITE
PS00903 CYT_DCMP_DEAMINASES_1, 1 hit
PS51747 CYT_DCMP_DEAMINASES_2, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiFCY1_YEAST
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q12178
Secondary accession number(s): D6W467
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: November 1, 1996
Last modified: February 13, 2019
This is version 167 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

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

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. Yeast
    Yeast (Saccharomyces cerevisiae): entries, gene names and cross-references to SGD
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families
  4. Yeast chromosome XVI
    Yeast (Saccharomyces cerevisiae) chromosome XVI: entries and gene names
  5. PATHWAY comments
    Index of metabolic and biosynthesis pathways
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