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

Last Reviewed on: 2012-09-10    Molecular Function | Biological Process | Cellular Component

Manually curated Molecular Function
Annotation(s)	Evidence	Reference(s)	Assigned By
dolichyl-phosphate-mannose-protein mannosyltransferase activity	IMP: Inferred from Mutant Phenotype Assigned on 2001-01-18 IDA: Inferred from Direct Assay Assigned on 2001-01-18	Strahl-Bolsinger S, et al.  (1993) PMT1, the gene for a key enzyme of protein O-glycosylation in Saccharomyces cerevisiae. Proc Natl Acad Sci U S A 90(17):8164-8	SGD
	IDA: Inferred from Direct Assay Assigned on 2012-08-31	Lommel M, et al.  (2011) A conserved acidic motif is crucial for enzymatic activity of protein O-mannosyltransferases. J Biol Chem 286(46):39768-75	SGD
	IGI: Inferred from Genetic Interaction with SGD:PMT2 Assigned on 2012-08-24 IMP: Inferred from Mutant Phenotype Assigned on 2012-08-24 IDA: Inferred from Direct Assay Assigned on 2012-08-24	Gentzsch M, et al.  (1995) Protein O-glycosylation in Saccharomyces cerevisiae: the protein O-mannosyltransferases Pmt1p and Pmt2p function as heterodimer. FEBS Lett 377(2):128-30	SGD

Manually curated Biological Process
Annotation(s)	Evidence	Reference(s)	Assigned By
ER-associated misfolded protein catabolic process	IGI: Inferred from Genetic Interaction with SGD:PMT2 Assigned on 2012-08-31 IMP: Inferred from Mutant Phenotype Assigned on 2012-08-31	Hirayama H, et al.  (2008) O-Mannosylation is Required for Degradation of the Endoplasmic Reticulum-associated Degradation Substrate Gas1*p via the Ubiquitin/Proteasome Pathway in Saccharomyces cerevisiae. J Biochem 143(4):555-67	SGD
	IGI: Inferred from Genetic Interaction with SGD:HRD1, SGD:PMT2 Assigned on 2011-01-11	Goder V and Melero A  (2011) Protein O-mannosyltransferases participate in ER protein quality control. J Cell Sci 124(Pt 1):144-53	SGD
protein exit from endoplasmic reticulum	IGI: Inferred from Genetic Interaction with SGD:PMT2 Assigned on 2011-01-11	Goder V and Melero A  (2011) Protein O-mannosyltransferases participate in ER protein quality control. J Cell Sci 124(Pt 1):144-53	SGD
protein O-linked mannosylation	IMP: Inferred from Mutant Phenotype Assigned on 2012-09-10 IDA: Inferred from Direct Assay Assigned on 2012-09-10	Strahl-Bolsinger S, et al.  (1993) PMT1, the gene for a key enzyme of protein O-glycosylation in Saccharomyces cerevisiae. Proc Natl Acad Sci U S A 90(17):8164-8	SGD
	IMP: Inferred from Mutant Phenotype Assigned on 2012-08-31	Hirayama H, et al.  (2008) O-Mannosylation is Required for Degradation of the Endoplasmic Reticulum-associated Degradation Substrate Gas1*p via the Ubiquitin/Proteasome Pathway in Saccharomyces cerevisiae. J Biochem 143(4):555-67	SGD
	IGI: Inferred from Genetic Interaction with SGD:PMT2 Assigned on 2012-08-24 IMP: Inferred from Mutant Phenotype Assigned on 2012-08-24 IDA: Inferred from Direct Assay Assigned on 2012-08-24	Gentzsch M, et al.  (1995) Protein O-glycosylation in Saccharomyces cerevisiae: the protein O-mannosyltransferases Pmt1p and Pmt2p function as heterodimer. FEBS Lett 377(2):128-30	SGD
	IGI: Inferred from Genetic Interaction with SGD:PMT2 Assigned on 2012-09-01	Arroyo J, et al.  (2011) Functional and genomic analyses of blocked protein O-mannosylation in baker's yeast. Mol Microbiol 79(6):1529-46	SGD
regulation of endoplasmic reticulum unfolded protein response	IGI: Inferred from Genetic Interaction with SGD:HAC1, SGD:PMT2 Assigned on 2012-09-01	Arroyo J, et al.  (2011) Functional and genomic analyses of blocked protein O-mannosylation in baker's yeast. Mol Microbiol 79(6):1529-46	SGD

Manually curated Cellular Component
Annotation(s)	Evidence	Reference(s)	Assigned By
dolichyl-phosphate-mannose-protein mannosyltransferase complex	IPI: Inferred from Physical Interaction with SGD:PMT2 Assigned on 2012-08-31	Lommel M, et al.  (2011) A conserved acidic motif is crucial for enzymatic activity of protein O-mannosyltransferases. J Biol Chem 286(46):39768-75	SGD
	IPI: Inferred from Physical Interaction with SGD:PMT3, SGD:PMT2 Assigned on 2012-09-10	Girrbach V and Strahl S  (2003) Members of the evolutionarily conserved PMT family of protein O-mannosyltransferases form distinct protein complexes among themselves. J Biol Chem 278(14):12554-62	SGD
	IPI: Inferred from Physical Interaction with SGD:PMT2 Assigned on 2012-08-24	Gentzsch M, et al.  (1995) Protein O-glycosylation in Saccharomyces cerevisiae: the protein O-mannosyltransferases Pmt1p and Pmt2p function as heterodimer. FEBS Lett 377(2):128-30	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
integral to membrane	ISM: Inferred from Sequence Model Assigned on 2011-05-31	De Hertogh B, et al.  (2002) Phylogenetic classification of transporters and other membrane proteins from Saccharomyces cerevisiae. Funct Integr Genomics 2(4-5):154-70	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 | Cellular Component

Computational Molecular Function
Annotation(s)	Evidence	Reference(s)	Assigned By
dolichyl-phosphate-mannose-protein mannosyltransferase activity	IEA: Inferred from Electronic Annotation with EBI:IPR027004 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 IUBMB:2.4.1.109 Last updated 2013-03-02	GOA curators and MGI curators  (2001) Gene Ontology annotation based on Enzyme Commission mapping.	UniProtKB
mannosyltransferase activity	IEA: Inferred from Electronic Annotation with EBI:IPR003342 Last updated 2013-03-02	DDB, et al.  (2001) Gene Ontology annotation through association of InterPro records with GO terms.	InterPro
transferase activity	IEA: Inferred from Electronic Annotation with EBI:KW-0808 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries.	UniProtKB
transferase activity, transferring glycosyl groups	IEA: Inferred from Electronic Annotation with EBI:KW-0328 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 Biological Process
Annotation(s)	Evidence	Reference(s)	Assigned By
protein glycosylation	IEA: Inferred from Electronic Annotation with UniPathway:UPA00378 Last updated 2013-03-02	UniProt-GOA  (2012) Gene Ontology annotation based on UniPathway vocabulary mapping.	UniPathway
protein O-linked glycosylation	IEA: Inferred from Electronic Annotation with EBI:IPR003342 Last updated 2013-03-02	DDB, et al.  (2001) Gene Ontology annotation through association of InterPro records with GO terms.	InterPro

Computational Cellular Component
Annotation(s)	Evidence	Reference(s)	Assigned By
endoplasmic reticulum	IEA: Inferred from Electronic Annotation with EBI:KW-0256 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries.	UniProtKB
endoplasmic reticulum membrane	IEA: Inferred from Electronic Annotation with EBI:SL-0097 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
integral to membrane	IEA: Inferred from Electronic Annotation with EBI:KW-0812 Last updated 2013-03-02	UniProt-GOA  (2011) Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries.	UniProtKB
membrane	IEA: Inferred from Electronic Annotation with EBI:IPR003342, EBI:IPR016093 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-0472 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)).