This page displays GO annotations in different sections according to the annotation method used to add that annotation to SGD.

Last Reviewed on: 2003-10-28    Molecular Function | Biological Process

Manually curated Molecular Function
Annotation(s)	Evidence	Reference(s)	Assigned By
ornithine decarboxylase activity	IDA: Inferred from Direct Assay Assigned on 2002-11-14	Fonzi WA  (1989) Regulation of Saccharomyces cerevisiae ornithine decarboxylase expression in response to polyamine. J Biol Chem 264(30):18110-8	SGD

Manually curated Biological Process
Annotation(s)	Evidence	Reference(s)	Assigned By
pantothenate biosynthetic process	IMP: Inferred from Mutant Phenotype Assigned on 2002-08-01	White WH, et al.  (2001) Saccharomyces cerevisiae is capable of de Novo pantothenic acid biosynthesis involving a novel pathway of beta-alanine production from spermine. J Biol Chem 276(14):10794-800	SGD
putrescine biosynthetic process	IMP: Inferred from Mutant Phenotype Assigned on 2005-04-16	Balasundaram D, et al.  (1994) The presence of an active S-adenosylmethionine decarboxylase gene increases the growth defect observed in Saccharomyces cerevisiae mutants unable to synthesize putrescine, spermidine, and spermine. J Bacteriol 176(20):6407-9	SGD

* Manually curated GO annotations reflect our best understanding of the basic molecular function, biological process, and cellular component for this gene product. Manually curated annotations are assigned by SGD curators based on published papers when available, or by curatorial statements if necessary. Curators periodically review all Manually curated GO annotations for accuracy and completeness. The "Last Reviewed on:" date at the top of this section indicates when these annotations were last reviewed.

Cellular Component

High-throughput Cellular Component
Annotation(s)	Evidence	Reference(s)	Assigned By
cytoplasm	IDA: Inferred from Direct Assay Assigned on 2003-10-28	Huh WK, et al.  (2003) Global analysis of protein localization in budding yeast. Nature 425(6959):686-91	SGD

** GO annotations from High-throughput experiments are made based on a variety of large scale high-throughput experiments, including genome-wide experiments. Many of these annotations are made based on GO annotations (or mappings to GO annotations) assigned by the authors, rather than SGD curators. While SGD curators read these publications and often work closely with authors to incorporate the information, each individual annotation may not necessarily be reviewed by a curator. GO Annotations from high-throughput experiments will be assigned only when this type of data is available, and thus may not be assigned in all three aspects of the Gene Ontologies.

Molecular Function | Biological Process

Computational Molecular Function
Annotation(s)	Evidence	Reference(s)	Assigned By
carboxy-lyase activity	IEA: Inferred from Electronic Annotation with EBI:KW-0210 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries.	UniProtKB
catalytic activity	IEA: Inferred from Electronic Annotation with EBI:IPR022643, EBI:IPR009006, EBI:IPR000183, EBI:IPR022644 Last updated 2013-03-02	DDB, et al.  (2001) Gene Ontology annotation through association of InterPro records with GO terms.	InterPro
lyase activity	IEA: Inferred from Electronic Annotation with EBI:KW-0456 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries.	UniProtKB
ornithine decarboxylase activity	IEA: Inferred from Electronic Annotation with IUBMB:4.1.1.17 Last updated 2013-03-02	GOA curators and MGI curators  (2001) Gene Ontology annotation based on Enzyme Commission mapping.	UniProtKB

Computational Biological Process
Annotation(s)	Evidence	Reference(s)	Assigned By
polyamine biosynthetic process	IEA: Inferred from Electronic Annotation with EBI:IPR002433 Last updated 2013-03-02	DDB, et al.  (2001) Gene Ontology annotation through association of InterPro records with GO terms.	InterPro
	IEA: Inferred from Electronic Annotation with EBI:KW-0620 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries.	UniProtKB
putrescine biosynthetic process from ornithine	IEA: Inferred from Electronic Annotation with UniPathway:UPA00535 Last updated 2013-03-02	UniProt-GOA  (2012) Gene Ontology annotation based on UniPathway vocabulary mapping.	UniPathway

*** Computational GO Annotations are predictions. These annotations are NOT reviewed by a curator. Currently, all computational GO annotations for S. cerevisiae are assigned by an external source (for example, the Gene Ontology Annotation (GOA) project of the European Bioinformatics Institute (EBI)).