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SAG1 Sag1p [ Saccharomyces cerevisiae S288C ]

Gene ID: 853460, updated on 23-Apr-2026
Official Symbol
SAG1
Official Full Name
Sag1p
Primary source
SGD:S000003764
Locus tag
YJR004C
See related
AllianceGenome:SGD:S000003764; FungiDB:YJR004C; VEuPathDB:YJR004C
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Saccharomyces cerevisiae S288C (strain: S288C)
Lineage
Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes; Saccharomycetales; Saccharomycetaceae; Saccharomyces
Also known as
AG(ALPHA)1
Summary
Enables cell adhesion molecule binding activity. Involved in agglutination involved in conjugation with cellular fusion. Located in fungal-type cell wall. [provided by Alliance of Genome Resources, Jul 2025]
Orthologs
all
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See SAG1 in Genome Data Viewer
Location:
chromosome: X
Exon count:
1
Sequence:
Chromosome: X; NC_001142.9 (442909..444861, complement)

Chromosome X - NC_001142.9Genomic Context describing neighboring genes Neighboring gene rRNA-processing protein MPP10 Neighboring gene Mrx12p Neighboring gene Apl1p Neighboring gene Lso1p

Genomic Sequence:
NC_001142.9

Go to nucleotide: Graphics FASTA GenBank

GeneRIFs: Gene References Into Functions

Products Interactant Other Gene Complex Source Pubs Description

Homology

Gene Ontology Provided by SGD

Function Evidence Code Pubs
enables cell adhesion molecule binding IMP
Inferred from Mutant Phenotype
more info
 PubMed 
Process Evidence Code Pubs
involved_in agglutination involved in conjugation with cellular fusion IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in cell adhesion IEA
Inferred from Electronic Annotation
more info
  
Component Evidence Code Pubs
located_in cell periphery HDA PubMed 
located_in fungal-type cell wall IDA
Inferred from Direct Assay
more info
 PubMed 
located_in fungal-type vacuole HDA PubMed 
located_in membrane IEA
Inferred from Electronic Annotation
more info
  
Preferred Names
Sag1p
NP_012537.1
  • Alpha-agglutinin of alpha-cells; binds to Aga1p during agglutination, N-terminal half is homologous to the immunoglobulin superfamily and contains binding site for a-agglutinin, C-terminal half is highly glycosylated and contains GPI anchor

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Genome Annotation

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference assembly

Genomic

  1. NC_001142.9 Reference assembly

    Range
    442909..444861 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001181661.1 → NP_012537.1  Sag1p

    See identical proteins and their annotated locations for NP_012537.1

    Status: REVIEWED

    UniProtKB/Swiss-Prot
    D6VWH8, P20840
    UniProtKB/TrEMBL
    B3LQA2, D3UF71, N1P100
    Conserved Domains (1) summary
    smart01056
    Location:50 → 300
    Candida_ALS_N; Cell-wall agglutinin N-terminal ligand-sugar binding
Nucleotide Protein
Heading Accession and Version
Protein Accession Links
GenPept Link UniProtKB Link
P20840.2

Gene LinkOut

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