Biomaterial Database

TAP1 and TAP2 genes in nickel allergy. 1997

S Silvennoinen-Kassinen, and I Ikäheimo, and A Tiilikainen

Department of Medical Microbiology, University of Oulu, Finland.

The study was undertaken to see whether TAP1 and TAP2 (transporter associated with antigen processing) genes are involved in susceptibility to nickel allergy. The products of these genes are important in antigen transport and processing, making them candidates for disease susceptibility. Fifty-five nickel-sensitive and 54 non-sensitive subjects were TAP1- and TAP2-typed by amplification refractory mutation system - polymerase chain reaction. The allele and phenotype frequencies of TAP2B were significantly (p = 0.019 and 0.012, respectively) increased in nickel-sensitive subjects versus controls. Relative risk (RR) for TAP2B was 2.7 and etiological factor (EF) = 0.46. The allele frequency of TAP2C was decreased among the nickel-sensitive subjects versus controls (p = 0.016). RR for TAP2C was 0.18. In conclusion, TAP2B increases the risk for nickel allergy, the results suggesting a considerably high EF.

UI	MeSH Term	Description	Entries
D009532	Nickel	A trace element with the atomic symbol Ni, atomic number 28, and atomic weight 58.69. It is a cofactor of the enzyme UREASE.
D010641	Phenotype	The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.	Phenotypes
D005787	Gene Frequency	The proportion of one particular in the total of all ALLELES for one genetic locus in a breeding POPULATION.	Allele Frequency,Genetic Equilibrium,Equilibrium, Genetic,Allele Frequencies,Frequencies, Allele,Frequencies, Gene,Frequency, Allele,Frequency, Gene,Gene Frequencies
D006680	HLA Antigens	Antigens determined by leukocyte loci found on chromosome 6, the major histocompatibility loci in humans. They are polypeptides or glycoproteins found on most nucleated cells and platelets, determine tissue types for transplantation, and are associated with certain diseases.	Human Leukocyte Antigen,Human Leukocyte Antigens,Leukocyte Antigens,HL-A Antigens,Antigen, Human Leukocyte,Antigens, HL-A,Antigens, HLA,Antigens, Human Leukocyte,Antigens, Leukocyte,HL A Antigens,Leukocyte Antigen, Human,Leukocyte Antigens, Human
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000071181	ATP Binding Cassette Transporter, Subfamily B, Member 2	An ATP-binding cassette, sub-family B protein (ATP BINDING CASSETTE TRANSPORTER, SUBFAMILY B) that functions in the transport of ANTIGENS from the CYTOPLASM to the ENDOPLASMIC RETICULUM for association with HISTOCOMPATIBILITY ANTIGENS CLASS I peptides. It also acts as a molecular scaffold for the final stage of MHC class I PROTEIN FOLDING.	ABCB2 Protein,ATP Binding Cassette Transporter, Sub-Family B, Member 2,ATP-Binding Cassette Sub-Family B Member 2,Antigen Peptide Transporter-1,Peptide Transporter PSF1,Peptide Transporter TAP1,RING4 Protein,Really Interesting New Gene 4 Protein,TAP-1 Protein,TAP1 Protein,Transporter 1, ATP-Binding Cassette, Sub-Family B (MDR-TAP),ATP Binding Cassette Sub Family B Member 2,Antigen Peptide Transporter 1,PSF1, Peptide Transporter,TAP 1 Protein,TAP1, Peptide Transporter
D000071450	ATP Binding Cassette Transporter, Subfamily B, Member 3	ATP-binding cassette, subfamily B, protein that functions in the transport of ANTIGENS from the CYTOPLASM to the ENDOPLASMIC RETICULUM for association with HISTOCOMPATIBILITY ANTIGENS CLASS I peptides. It functions as a heterodimer with ATP BINDING CASSETTE TRANSPORTER, SUBFAMILY B, MEMBER 2.	ABCB3 Protein,ATP Binding Cassette Transporter, Sub-Family B, Member 3,ATP-Binding Cassette, Sub-Family B, Member 3,Antigen Peptide Transporter-2,Peptide Supply Factor 2,Peptide Transporter Tap2,Antigen Peptide Transporter 2,Tap2, Peptide Transporter
D000483	Alleles	Variant forms of the same gene, occupying the same locus on homologous CHROMOSOMES, and governing the variants in production of the same gene product.	Allelomorphs,Allele,Allelomorph
D015395	Histocompatibility Antigens Class I	Membrane glycoproteins consisting of an alpha subunit and a BETA 2-MICROGLOBULIN beta subunit. In humans, highly polymorphic genes on CHROMOSOME 6 encode the alpha subunits of class I antigens and play an important role in determining the serological specificity of the surface antigen. Class I antigens are found on most nucleated cells and are generally detected by their reactivity with alloantisera. These antigens are recognized during GRAFT REJECTION and restrict cell-mediated lysis of virus-infected cells.	Class I Antigen,Class I Antigens,Class I Histocompatibility Antigen,Class I MHC Protein,Class I Major Histocompatibility Antigen,MHC Class I Molecule,MHC-I Peptide,Class I Histocompatibility Antigens,Class I Human Antigens,Class I MHC Proteins,Class I Major Histocompatibility Antigens,Class I Major Histocompatibility Molecules,Human Class I Antigens,MHC Class I Molecules,MHC-I Molecules,MHC-I Peptides,Antigen, Class I,Antigens, Class I,I Antigen, Class,MHC I Molecules,MHC I Peptide,MHC I Peptides,Molecules, MHC-I,Peptide, MHC-I,Peptides, MHC-I
D016022	Case-Control Studies	Comparisons that start with the identification of persons with the disease or outcome of interest and a control (comparison, referent) group without the disease or outcome of interest. The relationship of an attribute is examined by comparing both groups with regard to the frequency or levels of outcome over time.	Case-Base Studies,Case-Comparison Studies,Case-Referent Studies,Matched Case-Control Studies,Nested Case-Control Studies,Case Control Studies,Case-Compeer Studies,Case-Referrent Studies,Case Base Studies,Case Comparison Studies,Case Control Study,Case Referent Studies,Case Referrent Studies,Case-Comparison Study,Case-Control Studies, Matched,Case-Control Studies, Nested,Case-Control Study,Case-Control Study, Matched,Case-Control Study, Nested,Case-Referent Study,Case-Referrent Study,Matched Case Control Studies,Matched Case-Control Study,Nested Case Control Studies,Nested Case-Control Study,Studies, Case Control,Studies, Case-Base,Studies, Case-Comparison,Studies, Case-Compeer,Studies, Case-Control,Studies, Case-Referent,Studies, Case-Referrent,Studies, Matched Case-Control,Studies, Nested Case-Control,Study, Case Control,Study, Case-Comparison,Study, Case-Control,Study, Case-Referent,Study, Case-Referrent,Study, Matched Case-Control,Study, Nested Case-Control