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

Last Reviewed on: 2002-10-09    Molecular Function | Biological Process | Cellular Component

Manually curated Molecular Function
Annotation(s)	Evidence	Reference(s)	Assigned By
NAD-dependent histone deacetylase activity	IMP: Inferred from Mutant Phenotype Assigned on 2013-02-19	Smith JS, et al.  (2000) A phylogenetically conserved NAD+-dependent protein deacetylase activity in the Sir2 protein family. Proc Natl Acad Sci U S A 97(12):6658-63	SGD
	IDA: Inferred from Direct Assay Assigned on 2007-02-15	Landry J, et al.  (2000) The silencing protein SIR2 and its homologs are NAD-dependent protein deacetylases. Proc Natl Acad Sci U S A 97(11):5807-11	SGD

Manually curated Biological Process
Annotation(s)	Evidence	Reference(s)	Assigned By
chromatin silencing at rDNA	IMP: Inferred from Mutant Phenotype Assigned on 2007-02-15	Lamming DW, et al.  (2005) HST2 mediates SIR2-independent life-span extension by calorie restriction. Science 309(5742):1861-4	SGD
	IMP: Inferred from Mutant Phenotype Assigned on 2007-02-15	Perrod S, et al.  (2001) A cytosolic NAD-dependent deacetylase, Hst2p, can modulate nucleolar and telomeric silencing in yeast. EMBO J 20(1-2):197-209	SGD
chronological cell aging	IGI: Inferred from Genetic Interaction with SGD:FOB1, SGD:SIR2 Assigned on 2007-02-15 IMP: Inferred from Mutant Phenotype Assigned on 2007-02-15	Lamming DW, et al.  (2005) HST2 mediates SIR2-independent life-span extension by calorie restriction. Science 309(5742):1861-4	SGD
negative regulation of chromatin silencing at telomere	IMP: Inferred from Mutant Phenotype Assigned on 2007-02-15	Perrod S, et al.  (2001) A cytosolic NAD-dependent deacetylase, Hst2p, can modulate nucleolar and telomeric silencing in yeast. EMBO J 20(1-2):197-209	SGD
negative regulation of mitotic recombination	IGI: Inferred from Genetic Interaction with SGD:FOB1, SGD:SIR2 Assigned on 2007-02-15 IMP: Inferred from Mutant Phenotype Assigned on 2007-02-15	Lamming DW, et al.  (2005) HST2 mediates SIR2-independent life-span extension by calorie restriction. Science 309(5742):1861-4	SGD

Manually curated Cellular Component
Annotation(s)	Evidence	Reference(s)	Assigned By
cytoplasm	IDA: Inferred from Direct Assay Assigned on 2002-10-09	Perrod S, et al.  (2001) A cytosolic NAD-dependent deacetylase, Hst2p, can modulate nucleolar and telomeric silencing in yeast. EMBO J 20(1-2):197-209	SGD
nucleus	IDA: Inferred from Direct Assay Assigned on 2013-02-15	Wilson JM, et al.  (2006) Nuclear export modulates the cytoplasmic Sir2 homologue Hst2. EMBO Rep 7(12):1247-51	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.

There are no High-throughput annotations for HST2

** 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 | Cellular Component

Computational Molecular Function
Annotation(s)	Evidence	Reference(s)	Assigned By
hydrolase activity	IEA: Inferred from Electronic Annotation with EBI:KW-0378 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries.	UniProtKB
hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides	IEA: Inferred from Electronic Annotation with EBI:IPR017328 Last updated 2013-03-02	DDB, et al.  (2001) Gene Ontology annotation through association of InterPro records with GO terms.	InterPro
metal ion binding	IEA: Inferred from Electronic Annotation with EBI:KW-0479 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries.	UniProtKB
NAD binding	IEA: Inferred from Electronic Annotation with EBI:IPR017328 Last updated 2013-03-02	DDB, et al.  (2001) Gene Ontology annotation through association of InterPro records with GO terms.	InterPro
NAD+ binding	IEA: Inferred from Electronic Annotation with EBI:IPR003000 Last updated 2013-03-02	DDB, et al.  (2001) Gene Ontology annotation through association of InterPro records with GO terms.	InterPro
zinc ion binding	IEA: Inferred from Electronic Annotation with EBI:IPR017328 Last updated 2013-03-02	DDB, et al.  (2001) Gene Ontology annotation through association of InterPro records with GO terms.	InterPro

Computational Biological Process
Annotation(s)	Evidence	Reference(s)	Assigned By
protein deacetylation	IEA: Inferred from Electronic Annotation with EBI:IPR017328 Last updated 2013-03-02	DDB, et al.  (2001) Gene Ontology annotation through association of InterPro records with GO terms.	InterPro
regulation of transcription, DNA-dependent	IEA: Inferred from Electronic Annotation with EBI:KW-0805 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries.	UniProtKB
transcription, DNA-dependent	IEA: Inferred from Electronic Annotation with EBI:KW-0804 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries.	UniProtKB

Computational Cellular Component
Annotation(s)	Evidence	Reference(s)	Assigned By
cytoplasm	IEA: Inferred from Electronic Annotation with EBI:SL-0086 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on the manual assignment of UniProtKB Subcellular Location terms in UniProtKB/Swiss-Prot entries.	UniProtKB
	IEA: Inferred from Electronic Annotation with EBI:KW-0963 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries.	UniProtKB
nucleus	IEA: Inferred from Electronic Annotation with EBI:SL-0191 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on the manual assignment of UniProtKB Subcellular Location terms in UniProtKB/Swiss-Prot entries.	UniProtKB
	IEA: Inferred from Electronic Annotation with EBI:KW-0539 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries.	UniProtKB

*** 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)).