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Aliases for UAP1 Gene

Aliases for UAP1 Gene

  • UDP-N-Acetylglucosamine Pyrophosphorylase 1 2 3 5
  • Sperm-Associated Antigen 2 3 4
  • Antigen X 3 4
  • SPAG2 3 4
  • AGX 3 4
  • Testis Tissue Sperm-Binding Protein Li 37a 3
  • Sperm Associated Antigen 2 3
  • EC 63
  • EC 63
  • EC 2.7.7 63
  • AGX1 3
  • AGX2 3

External Ids for UAP1 Gene

Previous HGNC Symbols for UAP1 Gene

  • SPAG2

Previous GeneCards Identifiers for UAP1 Gene

  • GC01P160166
  • GC01P158182
  • GC01P159227
  • GC01P159718
  • GC01P159262
  • GC01P160797
  • GC01P162531
  • GC01P133776

Summaries for UAP1 Gene

GeneCards Summary for UAP1 Gene

UAP1 (UDP-N-Acetylglucosamine Pyrophosphorylase 1) is a Protein Coding gene. Among its related pathways are Transport to the Golgi and subsequent modification and Metabolism. GO annotations related to this gene include identical protein binding and uridylyltransferase activity. An important paralog of this gene is UAP1L1.

UniProtKB/Swiss-Prot for UAP1 Gene

  • Converts UTP and GlcNAc-1-P into UDP-GlcNAc, and UTP and GalNAc-1-P into UDP-GalNAc. Isoform AGX1 has 2 to 3 times higher activity towards GalNAc-1-P, while isoform AGX2 has 8 times more activity towards GlcNAc-1-P.

Gene Wiki entry for UAP1 Gene

No data available for Entrez Gene Summary , Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for UAP1 Gene

Genomics for UAP1 Gene

Regulatory Elements for UAP1 Gene

Enhancers for UAP1 Gene
GeneHancer Identifier Score Enhancer Sources TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Other Gene Targets for Enhancer

Enhancers around UAP1 on UCSC Golden Path with GeneCards custom track

Promoters for UAP1 Gene
Ensembl Regulatory Elements (ENSRs) TSS Distance (bp) Size (bp) Binding Sites for Transcription Factors within promoters

ENSRs around UAP1 on UCSC Golden Path with GeneCards custom track

Genomic Location for UAP1 Gene

162,561,506 bp from pter
162,599,843 bp from pter
38,338 bases
Plus strand

Genomic View for UAP1 Gene

Genes around UAP1 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
UAP1 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for UAP1 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for UAP1 Gene

Proteins for UAP1 Gene

  • Protein details for UAP1 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    UDP-N-acetylhexosamine pyrophosphorylase
    Protein Accession:
    Secondary Accessions:
    • B2R6R8
    • Q5VTA9
    • Q5VTB0
    • Q5VTB1
    • Q96GM2

    Protein attributes for UAP1 Gene

    522 amino acids
    Molecular mass:
    58769 Da
    Quaternary structure:
    • Monomer and homodimer. Isoform AGX1 is a homodimer. Isoform AGX2 is a monomer.

    Three dimensional structures from OCA and Proteopedia for UAP1 Gene

    Alternative splice isoforms for UAP1 Gene


neXtProt entry for UAP1 Gene

Proteomics data for UAP1 Gene at MOPED

Selected DME Specific Peptides for UAP1 Gene

Post-translational modifications for UAP1 Gene

  • Ubiquitination at Lys 12 and Lys 63
  • Modification sites at PhosphoSitePlus

Domains & Families for UAP1 Gene

Protein Domains for UAP1 Gene

Suggested Antigen Peptide Sequences for UAP1 Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the UDPGP type 1 family.
  • Belongs to the UDPGP type 1 family.
genes like me logo Genes that share domains with UAP1: view

No data available for Gene Families for UAP1 Gene

Function for UAP1 Gene

Molecular function for UAP1 Gene

UniProtKB/Swiss-Prot CatalyticActivity:
UTP + N-acetyl-alpha-D-galactosamine 1-phosphate = diphosphate + UDP-N-acetyl-alpha-D-galactosamine.
UniProtKB/Swiss-Prot CatalyticActivity:
UTP + N-acetyl-alpha-D-glucosamine 1-phosphate = diphosphate + UDP-N-acetyl-alpha-D-glucosamine.
UniProtKB/Swiss-Prot Function:
Converts UTP and GlcNAc-1-P into UDP-GlcNAc, and UTP and GalNAc-1-P into UDP-GalNAc. Isoform AGX1 has 2 to 3 times higher activity towards GalNAc-1-P, while isoform AGX2 has 8 times more activity towards GlcNAc-1-P.

Enzyme Numbers (IUBMB) for UAP1 Gene

Gene Ontology (GO) - Molecular Function for UAP1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0030246 carbohydrate binding IEA --
genes like me logo Genes that share ontologies with UAP1: view
genes like me logo Genes that share phenotypes with UAP1: view

Animal Model Products

miRNA for UAP1 Gene

miRTarBase miRNAs that target UAP1

No data available for Human Phenotype Ontology , Animal Models , Transcription Factor Targets and HOMER Transcription for UAP1 Gene

Localization for UAP1 Gene

Subcellular locations from UniProtKB/Swiss-Prot for UAP1 Gene

Cytoplasm. Note=In spermatozoa, localized to the principal piece of the tail, the neck region of the head and to a lesser extent, the midpiece of the tail.

Subcellular locations from

Jensen Localization Image for UAP1 Gene COMPARTMENTS Subcellular localization image for UAP1 gene
Compartment Confidence
cytosol 5
nucleus 5
plasma membrane 5
peroxisome 2

Gene Ontology (GO) - Cellular Components for UAP1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005737 cytoplasm IDA --
genes like me logo Genes that share ontologies with UAP1: view

Pathways & Interactions for UAP1 Gene

genes like me logo Genes that share pathways with UAP1: view

UniProtKB/Swiss-Prot Q16222-UAP1_HUMAN

  • Pathway: Nucleotide-sugar biosynthesis; UDP-N-acetyl-alpha-D-glucosamine biosynthesis; UDP-N-acetyl-alpha-D-glucosamine from N-acetyl-alpha-D-glucosamine 1-phosphate: step 1/1.

Gene Ontology (GO) - Biological Process for UAP1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006047 UDP-N-acetylglucosamine metabolic process IEA --
GO:0043687 post-translational protein modification TAS --
genes like me logo Genes that share ontologies with UAP1: view

No data available for SIGNOR curated interactions for UAP1 Gene

Drugs & Compounds for UAP1 Gene

(6) Drugs for UAP1 Gene - From: DrugBank, HMDB, and Novoseek

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Uridine-Diphosphate-N-Acetylgalactosamine Experimental Pharma Target 0
Uridine-Diphosphate-N-Acetylglucosamine Experimental Pharma Target 0
Diphosphate Experimental Pharma 0
Uridine triphosphate Experimental Pharma 0

(7) Additional Compounds for UAP1 Gene - From: HMDB and Novoseek

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
  • alpha-D-Glucosamine 1-phosphate
  • alpha-D-Glucosamine 1P
  • alpha-delta-Glucosamine 1-phosphate
  • alpha-delta-Glucosamine 1P
  • Glucosamine-1P
N-acetyl-alpha-D-galactosamine 1-phosphate
N-Acetyl-glucosamine 1-phosphate
  • D-Glucosamine 1-phosphate
  • delta-Glucosamine 1-phosphate
  • N-Acetyl-alpha-D-glucosamine 1-phosphate
  • N-Acetyl-alpha-delta-glucosamine 1-phosphate
  • N-Acetyl-D-glucosamine 1-phosphate
phosphoric acid
  • Acide phosphorique (FRENCH)
  • Acido fosforico [Italian]
  • Acidum phosphoricum
  • Diphosphate tetrasodium
  • Fosforzuuroplossingen [Dutch]
genes like me logo Genes that share compounds with UAP1: view

Transcripts for UAP1 Gene

Unigene Clusters for UAP1 Gene

UDP-N-acteylglucosamine pyrophosphorylase 1:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for UAP1 Gene

ExUns: 1a · 1b ^ 2 ^ 3a · 3b ^ 4a · 4b ^ 5a · 5b · 5c ^ 6a · 6b ^ 7a · 7b ^ 8a · 8b · 8c · 8d ^ 9 ^ 10 ^ 11a · 11b ^ 12 ^ 13a · 13b · 13c
SP1: - - - - - -
SP2: - -
SP3: - -
SP4: -
SP5: -
SP6: -
SP7: -

Relevant External Links for UAP1 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for UAP1 Gene

mRNA expression in normal human tissues for UAP1 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

Protein differential expression in normal tissues from HIPED for UAP1 Gene

This gene is overexpressed in Nasal epithelium (10.2), Salivary gland (9.6), Oral epithelium (8.3), Skin (7.9), and Bone marrow stromal cell (6.4).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, MOPED, and MaxQB for UAP1 Gene

SOURCE GeneReport for Unigene cluster for UAP1 Gene Hs.492859

mRNA Expression by UniProt/SwissProt for UAP1 Gene

Tissue specificity: Widely expressed. Isoform AGX1 is more abundant in testis than isoform AGX2, while isoform AGX2 is more abundant than isoform AGX1 in somatic tissue. Expressed at low level in placenta, muscle and liver.
genes like me logo Genes that share expression patterns with UAP1: view

Protein tissue co-expression partners for UAP1 Gene

Primer Products

No data available for mRNA differential expression in normal tissues for UAP1 Gene

Orthologs for UAP1 Gene

This gene was present in the common ancestor of eukaryotes.

Orthologs for UAP1 Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia UAP1 35
  • 93.6 (n)
  • 96.04 (a)
UAP1 36
  • 93 (a)
(Canis familiaris)
Mammalia UAP1 35
  • 92.54 (n)
  • 96.24 (a)
UAP1 36
  • 93 (a)
(Mus musculus)
Mammalia Uap1 35
  • 88.65 (n)
  • 93.47 (a)
Uap1 16
Uap1 36
  • 91 (a)
(Pan troglodytes)
Mammalia UAP1 35
  • 99.67 (n)
  • 99.8 (a)
UAP1 36
  • 97 (a)
(Rattus norvegicus)
Mammalia Uap1 35
  • 86.93 (n)
  • 93.27 (a)
(Monodelphis domestica)
Mammalia UAP1 36
  • 88 (a)
(Ornithorhynchus anatinus)
Mammalia UAP1 36
  • 67 (a)
(Gallus gallus)
Aves UAP1 35
  • 70.45 (n)
  • 80.45 (a)
UAP1 36
  • 77 (a)
(Anolis carolinensis)
Reptilia UAP1 36
  • 77 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia Str.2734 35
uap1 35
  • 69.64 (n)
  • 74.4 (a)
African clawed frog
(Xenopus laevis)
Amphibia Xl.5556 35
(Danio rerio)
Actinopterygii Dr.3773 35
uap1 35
  • 70.7 (n)
  • 75.4 (a)
uap1 36
  • 75 (a)
fruit fly
(Drosophila melanogaster)
Insecta BcDNA:LD24639 37
  • 51 (a)
mmy 35
  • 56.41 (n)
  • 54.27 (a)
mmy 36
  • 49 (a)
African malaria mosquito
(Anopheles gambiae)
Insecta AgaP_AGAP007889 35
  • 54.66 (n)
  • 51.53 (a)
(Caenorhabditis elegans)
Secernentea C36A4.4 37
  • 37 (a)
K06B9.2 37
  • 43 (a)
C36A4.4 36
  • 35 (a)
A. gosspyii yeast
(Ashbya gossypii)
Saccharomycetes AGOS_AFL192C 35
  • 49.02 (n)
  • 45.25 (a)
K. lactis yeast
(Kluyveromyces lactis)
Saccharomycetes KLLA0E01673g 35
  • 50.52 (n)
  • 43.58 (a)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes QRI1 35
  • 50.18 (n)
  • 43.08 (a)
QRI1 36
  • 41 (a)
QRI1 38
thale cress
(Arabidopsis thaliana)
eudicotyledons GlcNA.1UT2 35
  • 52.55 (n)
  • 45.45 (a)
(Oryza sativa)
Liliopsida Os04g0613700 35
  • 53.12 (n)
  • 44.7 (a)
sea squirt
(Ciona intestinalis)
Ascidiacea Cin.5408 35
bread mold
(Neurospora crassa)
Ascomycetes NCU02109 35
  • 52.21 (n)
  • 48.16 (a)
fission yeast
(Schizosaccharomyces pombe)
Schizosaccharomycetes uap1 35
  • 47.56 (n)
  • 40.37 (a)
Species with no ortholog for UAP1:
  • Actinobacteria (Mycobacterium tuberculosis)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)

Evolution for UAP1 Gene

Gene Tree for UAP1 (if available)
Gene Tree for UAP1 (if available)

Paralogs for UAP1 Gene

Paralogs for UAP1 Gene

(1) SIMAP similar genes for UAP1 Gene using alignment to 1 proteins: Pseudogenes for UAP1 Gene

genes like me logo Genes that share paralogs with UAP1: view

Variants for UAP1 Gene

Sequence variations from dbSNP and Humsavar for UAP1 Gene

SNP ID Clin Chr 01 pos Sequence Context AA Info Type
rs1128539 - 162,590,406(+) CAACC(A/C)TACTA reference, missense
rs1039867 -- 162,576,365(-) GTAAG(A/G)ACCGA intron-variant
rs1039868 -- 162,576,005(-) ggtag(C/T)tacgt intron-variant
rs1039869 -- 162,576,001(-) gctac(A/G)tgagt intron-variant
rs1473000 -- 162,598,938(+) TTGAA(A/G)CTGGG intron-variant

Structural Variations from Database of Genomic Variants (DGV) for UAP1 Gene

Variant ID Type Subtype PubMed ID
nsv516482 CNV Gain+Loss 19592680

Variation tolerance for UAP1 Gene

Residual Variation Intolerance Score: 45.5% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 3.93; 59.51% of all genes are more intolerant (likely to be disease-causing)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot and Relevant External Links for UAP1 Gene

Disorders for UAP1 Gene

Relevant External Links for UAP1

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
Atlas of Genetics and Cytogenetics in Oncology and Haematology:

No disorders were found for UAP1 Gene.

No data available for MalaCards , UniProtKB/Swiss-Prot and Genatlas for UAP1 Gene

Publications for UAP1 Gene

  1. Characterization of a human antigen with sera from infertile patients. (PMID: 8025165) Diekman A.B. … Goldberg E. (Biol. Reprod. 1994) 2 3 4 23 67
  2. The eukaryotic UDP-N-acetylglucosamine pyrophosphorylases: gene cloning, protein expression, and catalytic mechanism. (PMID: 9603950) Mio T. … Yamada-Okabe H. (J. Biol. Chem. 1998) 2 3 23
  3. Crystal structures of two human pyrophosphorylase isoforms in complexes with UDPGlc(Gal)NAc: role of the alternatively spliced insert in the enzyme oligomeric assembly and active site architecture. (PMID: 11707391) Peneff C. … Bourne Y. (EMBO J. 2001) 3 23
  4. Expression of the human antigen SPAG2 in the testis and localization to the outer dense fibers in spermatozoa. (PMID: 9621304) Diekman A.B. … Goldberg E. (Mol. Reprod. Dev. 1998) 3 23
  5. A 17-amino acid insert changes UDP-N-acetylhexosamine pyrophosphorylase specificity from UDP-GalNAc to UDP-GlcNAc. (PMID: 9765219) Wang-Gillam A. … Elbein A.D. (J. Biol. Chem. 1998) 3 23

Products for UAP1 Gene

Sources for UAP1 Gene