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Aliases for BTN2A1 Gene

Aliases for BTN2A1 Gene

  • Butyrophilin, Subfamily 2, Member A1 2 3
  • BTF1 3 4 6
  • BT2.1 3 4
  • Butyrophilin Subfamily 2 Member A1 3
  • BK14H9.1 3
  • DJ3E1.1 3
  • BTN2.1 3

External Ids for BTN2A1 Gene

Previous GeneCards Identifiers for BTN2A1 Gene

  • GC06P026515
  • GC06P026566
  • GC06P026458
  • GC06P026400

Summaries for BTN2A1 Gene

Entrez Gene Summary for BTN2A1 Gene

  • This gene encodes a member of the immunoglobulin superfamily. The gene is located in a cluster of butyrophilin-like genes in the juxta-telomeric region of the major histocompatibility complex on chromosome 6. A pseudogene of this gene has been identified in this cluster. The encoded protein is an integral plasma membrane protein involved in lipid, fatty-acid, and sterol metabolism. Alterations in this gene may be associated with several disease states including metabolic syndrome. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2013]

GeneCards Summary for BTN2A1 Gene

BTN2A1 (Butyrophilin, Subfamily 2, Member A1) is a Protein Coding gene. An important paralog of this gene is BTNL9.

No data available for UniProtKB/Swiss-Prot , Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for BTN2A1 Gene

Genomics for BTN2A1 Gene

Regulatory Elements for BTN2A1 Gene

Genomic Location for BTN2A1 Gene

26,457,904 bp from pter
26,476,621 bp from pter
18,718 bases
Plus strand

Genomic View for BTN2A1 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for BTN2A1 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for BTN2A1 Gene

Proteins for BTN2A1 Gene

  • Protein details for BTN2A1 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Butyrophilin subfamily 2 member A1
    Protein Accession:
    Secondary Accessions:
    • B4DLP9
    • E9PGR4
    • O00475
    • P78408
    • Q59EN4
    • Q7KYQ7
    • Q7Z386
    • Q96AV7
    • Q9NU62

    Protein attributes for BTN2A1 Gene

    527 amino acids
    Molecular mass:
    59633 Da
    Quaternary structure:
    No Data Available
    • Sequence=BAD93014.1; Type=Erroneous initiation; Note=Translation N-terminally shortened.; Evidence={ECO:0000305}; Sequence=CAB71221.2; Type=Erroneous gene model prediction; Evidence={ECO:0000305};

    Alternative splice isoforms for BTN2A1 Gene

neXtProt entry for BTN2A1 Gene

Proteomics data for BTN2A1 Gene at MOPED

Post-translational modifications for BTN2A1 Gene

  • Ubiquitination at Lys79 and Lys280
  • Glycosylation at Asn46, Asn114, and Asn120
  • Modification sites at PhosphoSitePlus

Antibody Products

  • Santa Cruz Biotechnology (SCBT) Antibodies for BTN2A1

No data available for DME Specific Peptides for BTN2A1 Gene

Domains for BTN2A1 Gene

Gene Families for BTN2A1 Gene

  • BTN :Butyrophilins
  • C2SET :Immunoglobulin superfamily / C2-set domain containing
  • VSET :Immunoglobulin superfamily / V-set domain containing

Graphical View of Domain Structure for InterPro Entry



  • Q7KYR7
  • Contains 1 B30.2/SPRY domain.
  • Contains 1 Ig-like V-type (immunoglobulin-like) domain.
  • Belongs to the immunoglobulin superfamily. BTN/MOG family.
genes like me logo Genes that share domains with BTN2A1: view

Function for BTN2A1 Gene

Molecular function for BTN2A1 Gene

GENATLAS Biochemistry:
butyrophilin subfamily 2,member A1,B box family of proteins,involved in cell proliferation and development

Gene Ontology (GO) - Molecular Function for BTN2A1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0003674 molecular_function ND --
GO:0005515 protein binding --
genes like me logo Genes that share ontologies with BTN2A1: view

Animal Model Products

CRISPR Products

miRNA for BTN2A1 Gene

miRTarBase miRNAs that target BTN2A1

miRNA Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for BTN2A1

In Situ Assay Products

Flow Cytometry Products

No data available for Enzyme Numbers (IUBMB) , Phenotypes , Animal Models , Transcription Factor Targeting and HOMER Transcription for BTN2A1 Gene

Localization for BTN2A1 Gene

Subcellular locations from UniProtKB/Swiss-Prot for BTN2A1 Gene

Membrane; Single-pass type I membrane protein.

Subcellular locations from

Jensen Localization Image for BTN2A1 Gene COMPARTMENTS Subcellular localization image for BTN2A1 gene
Compartment Confidence
plasma membrane 4
endoplasmic reticulum 2

Gene Ontology (GO) - Cellular Components for BTN2A1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005887 integral component of plasma membrane TAS 9382921
GO:0070062 extracellular exosome IDA 23376485
genes like me logo Genes that share ontologies with BTN2A1: view

Pathways for BTN2A1 Gene

SuperPathways for BTN2A1 Gene

No Data Available

Interacting Proteins for BTN2A1 Gene

Gene Ontology (GO) - Biological Process for BTN2A1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006629 lipid metabolic process TAS 9382921
genes like me logo Genes that share ontologies with BTN2A1: view

No data available for Pathways by source for BTN2A1 Gene

Transcripts for BTN2A1 Gene

Unigene Clusters for BTN2A1 Gene

Butyrophilin, subfamily 2, member A1:
Representative Sequences:

CRISPR Products

miRNA Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for BTN2A1

Primer Products

  • QuantiTect SYBR Green Assays in human,mouse,rat
  • Pre-validated RT² qPCR Primer Assay in human,mouse,rat
  • QuantiFast Probe-based Assays in human,mouse,rat

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for BTN2A1 Gene

ExUns: 1a · 1b ^ 2 ^ 3a · 3b · 3c ^ 4 ^ 5 ^ 6a · 6b
SP2: -
SP3: -

Relevant External Links for BTN2A1 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for BTN2A1 Gene

mRNA expression in normal human tissues for BTN2A1 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

Protein differential expression in normal tissues for BTN2A1 Gene

This gene is overexpressed in Breast (46.3) and Cerebrospinal fluid (7.6).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, MOPED, and MaxQB for BTN2A1 Gene

SOURCE GeneReport for Unigene cluster for BTN2A1 Gene Hs.159028

mRNA Expression by UniProt/SwissProt for BTN2A1 Gene

Tissue specificity: Highly expressed in brain, bone marrow, small intestine, muscle, spleen and pancreas. Moderate expression was seen in lung, liver and kidney.
genes like me logo Genes that share expressions with BTN2A1: view

Expression partners for BTN2A1 Gene

In Situ Assay Products

No data available for mRNA differential expression in normal tissues for BTN2A1 Gene

Orthologs for BTN2A1 Gene

This gene was present in the common ancestor of chordates.

Orthologs for BTN2A1 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia BTN2A1 35
  • 99.11 (n)
  • 98.86 (a)
-- 36
  • 37 (a)
(Bos Taurus)
Mammalia -- 36
  • 57 (a)
(Canis familiaris)
Mammalia -- 36
  • 70 (a)
(Monodelphis domestica)
Mammalia -- 36
  • 53 (a)
(Mus musculus)
Mammalia Btn2a2 36
  • 64 (a)
(Ornithorhynchus anatinus)
Mammalia -- 36
  • 40 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia LOC100485231 35
  • 48.92 (n)
  • 35.66 (a)
Species with no ortholog for BTN2A1:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • chicken (Gallus gallus)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • lizard (Anolis carolinensis)
  • 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)
  • rat (Rattus norvegicus)
  • rice (Oryza sativa)
  • 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)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)
  • zebrafish (Danio rerio)

Evolution for BTN2A1 Gene

Gene Tree for BTN2A1 (if available)
Gene Tree for BTN2A1 (if available)

Paralogs for BTN2A1 Gene

Paralogs for BTN2A1 Gene

Selected SIMAP similar genes for BTN2A1 Gene using alignment to 4 proteins: Pseudogenes for BTN2A1 Gene

genes like me logo Genes that share paralogs with BTN2A1: view

Variants for BTN2A1 Gene

Sequence variations from dbSNP and Humsavar for BTN2A1 Gene

SNP ID Clin Chr 06 pos Sequence Context AA Info Type MAF
rs1977198 -- 26,465,997(+) TAACT(A/C)CATGT intron-variant
rs1977199 -- 26,466,161(+) GAGGA(A/G)ATGAG intron-variant
rs1977200 -- 26,466,164(+) GAGAT(A/G)AGCAA intron-variant
rs2273193 -- 26,458,297(-) ACCCA(C/G)GCCGG intron-variant
rs2273558 -- 26,465,807(+) TACAT(A/C)ATTTC intron-variant

Structural Variations from Database of Genomic Variants (DGV) for BTN2A1 Gene

Variant ID Type Subtype PubMed ID
nsv528172 CNV Loss 19592680

Relevant External Links for BTN2A1 Gene

HapMap Linkage Disequilibrium report
Human Gene Mutation Database (HGMD)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for BTN2A1 Gene

Disorders for BTN2A1 Gene

Relevant External Links for BTN2A1

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator

No disorders were found for BTN2A1 Gene.

No data available for MalaCards , OMIM , UniProtKB/Swiss-Prot , University of Copenhagen DISEASES , Novoseek inferred disease relationships and Genatlas for BTN2A1 Gene

Publications for BTN2A1 Gene

  1. A 1.1-Mb transcript map of the hereditary hemochromatosis locus. (PMID: 9149941) Ruddy D.A. … Feder J.N. (Genome Res. 1997) 2 3 4
  2. Cloning, localization, and structure of new members of the butyrophilin gene family in the juxta-telomeric region of the major histocompatibility complex. (PMID: 9382921) Tazi-Ahnini R. … Pontarotti P. (Immunogenetics 1997) 2 3 4
  3. The B7 homolog butyrophilin BTN2A1 is a novel ligand for DC-SIGN. (PMID: 17785817) Malcherek G. … Trowsdale J. (J. Immunol. 2007) 3 23
  4. The DNA sequence and analysis of human chromosome 6. (PMID: 14574404) Mungall A.J. … Beck S. (Nature 2003) 3 4
  5. Complete sequencing and characterization of 21,243 full-length human cDNAs. (PMID: 14702039) Ota T. … Sugano S. (Nat. Genet. 2004) 3 4

Products for BTN2A1 Gene

Sources for BTN2A1 Gene

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