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Aliases for ALG1 Gene

Aliases for ALG1 Gene

  • ALG1, Chitobiosyldiphosphodolichol Beta-Mannosyltransferase 2 3
  • HMAT1 3 4 6
  • HMT1 3 4 6
  • Asparagine-Linked Glycosylation 1 Homolog (Yeast, Beta-1,4-Mannosyltransferase) 2 3
  • GDP-Mannose-Dolichol Diphosphochitobiose Mannosyltransferase 3 4
  • Asparagine-Linked Glycosylation Protein 1 Homolog 3 4
  • GDP-Man:GlcNAc2-PP-Dolichol Mannosyltransferase 3 4
  • Beta-1,4-Mannosyltransferase 3 4
  • Mannosyltransferase-1 3 4
  • EC 4 63
  • HMat-1 3 4
  • CDG1K 3 6
  • MT-1 3 4
  • Asparagine-Linked Glycosylation 1, Beta-1,4-Mannosyltransferase Homolog (S. Cerevisiae) 2
  • Asparagine-Linked Glycosylation 1, Beta-1,4-Mannosyltransferase Homolog 3
  • Chitobiosyldiphosphodolichol Beta-Mannosyltransferase 3
  • Beta-1,4 Mannosyltransferase 3
  • HMT-1 3
  • Mat-1 3

External Ids for ALG1 Gene

Summaries for ALG1 Gene

Entrez Gene Summary for ALG1 Gene

  • The enzyme encoded by this gene catalyzes the first mannosylation step in the biosynthesis of lipid-linked oligosaccharides. This gene is mutated in congenital disorder of glycosylation type Ik. [provided by RefSeq, Dec 2008]

GeneCards Summary for ALG1 Gene

ALG1 (ALG1, Chitobiosyldiphosphodolichol Beta-Mannosyltransferase) is a Protein Coding gene. Diseases associated with ALG1 include congenital disorder of glycosylation, type ik and walker-warburg syndrome. Among its related pathways are Biosynthesis of the N-glycan precursor (dolichol lipid-linked oligosaccharide, LLO) and transfer to a nascent protein and Biosynthesis of the N-glycan precursor (dolichol lipid-linked oligosaccharide, LLO) and transfer to a nascent protein. GO annotations related to this gene include mannosyltransferase activity and chitobiosyldiphosphodolichol beta-mannosyltransferase activity. An important paralog of this gene is ALG1L.

UniProtKB/Swiss-Prot for ALG1 Gene

  • Participates in the formation of the lipid-linked precursor oligosaccharide for N-glycosylation. Involved in assembling the dolichol-pyrophosphate-GlcNAc(2)-Man(5) intermediate on the cytoplasmic surface of the ER.

Gene Wiki entry for ALG1 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for ALG1 Gene

Genomics for ALG1 Gene

Genomic Location for ALG1 Gene

5,033,702 bp from pter
5,087,379 bp from pter
53,678 bases
Plus strand

Genomic View for ALG1 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for ALG1 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for ALG1 Gene

Regulatory Elements for ALG1 Gene

Proteins for ALG1 Gene

  • Protein details for ALG1 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Chitobiosyldiphosphodolichol beta-mannosyltransferase
    Protein Accession:
    Secondary Accessions:
    • B4DP08
    • Q6UVZ9
    • Q8N5Y4
    • Q9P2Y2

    Protein attributes for ALG1 Gene

    464 amino acids
    Molecular mass:
    52518 Da
    Quaternary structure:
    No Data Available
    • Sequence=AAQ89432.1; Type=Erroneous initiation; Evidence={ECO:0000305};

    Alternative splice isoforms for ALG1 Gene


neXtProt entry for ALG1 Gene

Proteomics data for ALG1 Gene at MOPED

Selected DME Specific Peptides for ALG1 Gene

Post-translational modifications for ALG1 Gene

  • Modification sites at PhosphoSitePlus
  • Ubiquitination at Lys217, Lys223, and Lys236

Other Protein References for ALG1 Gene

Domains for ALG1 Gene

Gene Families for ALG1 Gene

  • GLT1 :Glycosyltransferase group 1 domain containing

Protein Domains for ALG1 Gene


Graphical View of Domain Structure for InterPro Entry



  • Belongs to the glycosyltransferase group 1 family. Glycosyltransferase 33 subfamily.:
    • Q9BT22
genes like me logo Genes that share domains with ALG1: view

Function for ALG1 Gene

Molecular function for ALG1 Gene

UniProtKB/Swiss-Prot CatalyticActivity: GDP-mannose + chitobiosyldiphosphodolichol = GDP + beta-1,4-D-mannosylchitobiosyldiphosphodolichol
UniProtKB/Swiss-Prot Function: Participates in the formation of the lipid-linked precursor oligosaccharide for N-glycosylation. Involved in assembling the dolichol-pyrophosphate-GlcNAc(2)-Man(5) intermediate on the cytoplasmic surface of the ER.

Enzyme Numbers (IUBMB) for ALG1 Gene

Gene Ontology (GO) - Molecular Function for ALG1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000030 mannosyltransferase activity TAS 10704531
GO:0004578 chitobiosyldiphosphodolichol beta-mannosyltransferase activity IEA --
GO:0016757 transferase activity, transferring glycosyl groups --
genes like me logo Genes that share ontologies with ALG1: view

miRNA for ALG1 Gene

miRTarBase miRNAs that target ALG1

No data available for Phenotypes , Animal Models , Transcription Factor Targeting and HOMER Transcription for ALG1 Gene

Localization for ALG1 Gene

Subcellular locations from UniProtKB/Swiss-Prot for ALG1 Gene

Endoplasmic reticulum membrane; Single-pass type II membrane protein.

Subcellular locations from

Jensen Localization Image for ALG1 Gene COMPARTMENTS Subcellular localization image for ALG1 gene
Compartment Confidence
endoplasmic reticulum 5
plasma membrane 2
extracellular 1
golgi apparatus 1
lysosome 1
peroxisome 1

Gene Ontology (GO) - Cellular Components for ALG1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005783 endoplasmic reticulum TAS 10704531
GO:0005789 endoplasmic reticulum membrane TAS --
GO:0016020 membrane IDA 19946888
GO:0016021 integral component of membrane IEA --
genes like me logo Genes that share ontologies with ALG1: view

Pathways for ALG1 Gene

genes like me logo Genes that share pathways with ALG1: view

UniProtKB/Swiss-Prot Q9BT22-ALG1_HUMAN

  • Pathway: Protein modification; protein glycosylation

Gene Ontology (GO) - Biological Process for ALG1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006486 protein glycosylation TAS 10704531
GO:0006488 dolichol-linked oligosaccharide biosynthetic process TAS --
GO:0008152 metabolic process --
GO:0009058 biosynthetic process --
GO:0009103 lipopolysaccharide biosynthetic process TAS 10704531
genes like me logo Genes that share ontologies with ALG1: view

Compounds for ALG1 Gene

(4) HMDB Compounds for ALG1 Gene

Compound Synonyms Cas Number PubMed IDs
  • Man-beta1->4GlcNAc-beta1->4GlcNAc-PP-Dol
Not Available
Guanosine diphosphate
  • 5'-GDP
Guanosine diphosphate mannose
  • GDP mannose
  • Chitobiosyldiphosphodolichol
Not Available

(4) Novoseek inferred chemical compound relationships for ALG1 Gene

Compound -log(P) Hits PubMed IDs
gdpmannose 73.6 1
melatonin 65.2 10
gdp 45.6 1
mannose 40.8 1
genes like me logo Genes that share compounds with ALG1: view

Transcripts for ALG1 Gene

Unigene Clusters for ALG1 Gene

ALG1, chitobiosyldiphosphodolichol beta-mannosyltransferase:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for ALG1 Gene

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

Relevant External Links for ALG1 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for ALG1 Gene

mRNA expression in normal human tissues for ALG1 Gene

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, MOPED, and MaxQB for ALG1 Gene

SOURCE GeneReport for Unigene cluster for ALG1 Gene Hs.592086

genes like me logo Genes that share expressions with ALG1: view

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery , mRNA differential expression in normal tissues and mRNA Expression by UniProt/SwissProt for ALG1 Gene

Orthologs for ALG1 Gene

This gene was present in the common ancestor of eukaryotes.

Orthologs for ALG1 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia ALG1 35
  • 99.07 (n)
  • 98.92 (a)
ALG1 36
  • 99 (a)
(Bos Taurus)
Mammalia ALG1 35
  • 84.05 (n)
  • 83.07 (a)
ALG1 36
  • 82 (a)
(Canis familiaris)
Mammalia -- 36
  • 82 (a)
ALG1 35
  • 84.2 (n)
  • 81.68 (a)
(Mus musculus)
Mammalia Alg1 35
  • 82.28 (n)
  • 80.48 (a)
Alg1 16
Alg1 36
  • 77 (a)
(Monodelphis domestica)
Mammalia -- 36
  • 71 (a)
(Gallus gallus)
Aves -- 36
  • 63 (a)
ALG1 35
  • 65.83 (n)
  • 66.29 (a)
(Anolis carolinensis)
Reptilia -- 36
  • 62 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia alg1 35
  • 62.89 (n)
  • 63.88 (a)
(Danio rerio)
Actinopterygii -- 35
alg1 35
  • 62.72 (n)
  • 62.64 (a)
alg1 36
  • 57 (a)
African malaria mosquito
(Anopheles gambiae)
Insecta AgaP_AGAP003551 35
  • 51.14 (n)
  • 46.35 (a)
fruit fly
(Drosophila melanogaster)
Insecta CG18012 35
  • 54.54 (n)
  • 46.95 (a)
CG18012 36
  • 44 (a)
(Caenorhabditis elegans)
Secernentea T26A5.4 35
  • 47.43 (n)
  • 44.5 (a)
T26A5.4 36
  • 36 (a)
A. gosspyii yeast
(Ashbya gossypii)
Saccharomycetes AGOS_ADL338C 35
  • 46.46 (n)
  • 37.34 (a)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes ALG1 35
  • 44.11 (n)
  • 39.6 (a)
ALG1 36
  • 35 (a)
ALG1 38
K. lactis yeast
(Kluyveromyces lactis)
Saccharomycetes KLLA0B09405g 35
  • 46.24 (n)
  • 40 (a)
Alicante grape
(Vitis vinifera)
eudicotyledons Vvi.5786 35
thale cress
(Arabidopsis thaliana)
eudicotyledons AT1G16570 35
  • 48.17 (n)
  • 45.2 (a)
(Oryza sativa)
Liliopsida Os03g0180700 35
  • 50.35 (n)
  • 45.01 (a)
bread mold
(Neurospora crassa)
Ascomycetes NCU07261 35
  • 49.7 (n)
  • 44.73 (a)
fission yeast
(Schizosaccharomyces pombe)
Schizosaccharomycetes alg1 35
  • 46.79 (n)
  • 41.37 (a)
Species with no ortholog for ALG1:
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • 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)
  • platypus (Ornithorhynchus anatinus)
  • rainbow trout (Oncorhynchus mykiss)
  • rat (Rattus norvegicus)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • 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 ALG1 Gene

Gene Tree for ALG1 (if available)
Gene Tree for ALG1 (if available)

Paralogs for ALG1 Gene

Paralogs for ALG1 Gene

Selected SIMAP similar genes for ALG1 Gene using alignment to 5 proteins:

genes like me logo Genes that share paralogs with ALG1: view

Variants for ALG1 Gene

Sequence variations from dbSNP and Humsavar for ALG1 Gene

SNP ID Clin Chr 16 pos Sequence Context AA Info Type MAF
rs1047732 Benign 5,082,635(-) CACCC(A/G)AACAT reference, synonymous-codon
rs1807528 -- 5,080,347(-) TGATT(C/T)GTGCC intron-variant
rs1846688 -- 5,079,173(-) TGCAG(A/G)CCAGG intron-variant
rs1846689 -- 5,078,994(-) CTCCC(A/G)TTCTC intron-variant
rs1846690 -- 5,078,980(-) GAGAC(C/T)GTGGC intron-variant

Structural Variations from Database of Genomic Variants (DGV) for ALG1 Gene

Variant ID Type Subtype PubMed ID
esv2422516 CNV Deletion 17116639
esv25186 CNV Gain 19812545
nsv905254 CNV Loss 21882294
dgv795e1 CNV Complex 17122850
nsv457360 CNV Loss 19166990
esv34300 CNV Gain 17911159
dgv796e1 CNV Complex 17122850
nsv817715 CNV Gain 17921354
nsv428318 CNV Gain 18775914
nsv1722 CNV Loss 18451855
nsv482188 CNV Gain 20164927
nsv482189 CNV Gain 20164927

Relevant External Links for ALG1 Gene

HapMap Linkage Disequilibrium report
Human Gene Mutation Database (HGMD)
Locus Specific Mutation Databases (LSDB)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for ALG1 Gene

Disorders for ALG1 Gene

(1) OMIM Diseases for ALG1 Gene (605907)


  • Congenital disorder of glycosylation 1K (CDG1K) [MIM:608540]: A multisystem disorder caused by a defect in glycoprotein biosynthesis and characterized by under-glycosylated serum glycoproteins. Congenital disorders of glycosylation result in a wide variety of clinical features, such as defects in the nervous system development, psychomotor retardation, dysmorphic features, hypotonia, coagulation disorders, and immunodeficiency. The broad spectrum of features reflects the critical role of N-glycoproteins during embryonic development, differentiation, and maintenance of cell functions. {ECO:0000269 PubMed:14709599, ECO:0000269 PubMed:14973778, ECO:0000269 PubMed:14973782}. Note=The disease is caused by mutations affecting the gene represented in this entry.

(2) University of Copenhagen DISEASES for ALG1 Gene

Relevant External Links for ALG1

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with ALG1: view

Publications for ALG1 Gene

  1. Cloning of the human cDNA which can complement the defect of the yeast mannosyltransferase I-deficient mutant alg 1. (PMID: 10704531) Takahashi T. … Nishikawa Y. (Glycobiology 2000) 2 3 4 23
  2. Congenital disorder of glycosylation type Ik (CDG-Ik): a defect of mannosyltransferase I. (PMID: 14973782) Kranz C. … Marquardt T. (Am. J. Hum. Genet. 2004) 3 4 23
  3. Deficiency of the first mannosylation step in the N-glycosylation pathway causes congenital disorder of glycosylation type Ik. (PMID: 14709599) Grubenmann C.E. … Hennet T. (Hum. Mol. Genet. 2004) 3 4 23
  4. The secreted protein discovery initiative (SPDI), a large-scale effort to identify novel human secreted and transmembrane proteins: a bioinformatics assessment. (PMID: 12975309) Clark H.F. … Gray A.M. (Genome Res. 2003) 3 4
  5. Deficiency of GDP-Man:GlcNAc2-PP-dolichol mannosyltransferase causes congenital disorder of glycosylation type Ik. (PMID: 14973778) Schwarz M. … Koerner C. (Am. J. Hum. Genet. 2004) 3 4

Products for ALG1 Gene

Sources for ALG1 Gene

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