Localisation of Eight Additional Genes in the Human Major Histocompatibility Complex, Including the Gene Encoding the Casein Kinase II Beta Subunit, and DNA Sequence Analysis of the Class III Region

DNA Sequence ◽  
1996 ◽  
Vol 7 (1) ◽  
pp. 9-12 ◽  
Author(s):  
Mark R. Albertella ◽  
Helene Jones ◽  
Wendy Thomson ◽  
Mark G. Olavesen ◽  
Matt Neville ◽  
...  
Keyword(s):  
Major Histocompatibility Complex ◽  
Sequence Analysis ◽  
Dna Sequence ◽  
Casein Kinase ◽  
Dna Sequence Analysis ◽  
Beta Subunit ◽  
Class Iii ◽  
Gene Encoding ◽  
Human Major Histocompatibility Complex ◽  
Histocompatibility Complex

scholarly journals The G9a gene in the human major histocompatibility complex encodes a novel protein containing ankyrin-like repeats

1993 ◽  
Vol 290 (3) ◽  
pp. 811-818 ◽  
Author(s):  
C M Milner ◽  
R D Campbell
Keyword(s):  
Major Histocompatibility Complex ◽  
Amino Acid ◽  
Fusion Protein ◽  
Protein Interactions ◽  
Terminal Region ◽  
Major Histocompatibility ◽  
Class Iii ◽  
Intracellular Protein ◽  
Human Major Histocompatibility Complex ◽  
Histocompatibility Complex

The class III region of the human major histocompatibility complex spans approx. 1.1 Mbp on the short arm of chromosome 6 and is known to contain at least 36 genes. The complete nucleotide sequence of a 3.4 kb mRNA from one of these genes, G9a (or BAT8), has been determined from cDNA and genomic DNA clones. The single-copy G9a gene encodes a protein product of 1001 amino acids with a predicted molecular mass of 111,518 Da. The C-terminal region (residues 730-999) of the G9a protein has been expressed in Escherichia coli as a fusion protein with the 26 kDa glutathione S-transferase of Schistosoma japonicum (Sj26). The fusion protein has been used to raise antisera which, in Western-blot analysis, cross-react specifically with an intracellular protein of approx. 98 kDa. The function of the G9a protein is unknown. However, comparison of the derived amino acid sequence of G9a with the protein databases has revealed interesting similarities with a number of other proteins. The C-terminal region of G9a is 35% identical with a 149 amino acid segment of the Drosophila trithorax protein. In addition the G9a protein has been shown to contain six contiguous copies of a 33-amino acid repeat. This repeat, originally identified in the Notch protein of Drosophila and known as the cdc10/SW16 or ANK repeat, is also found in a number of other human proteins and may be involved in intracellular protein-protein interactions.

DNA sequence analysis of the gene encoding the HTLV-I P21E transmembrane protein reveals inter- and intraisolate genetic heterogeneity

Virology ◽  
1992 ◽  
Vol 186 (2) ◽  
pp. 619-627 ◽  
Author(s):  
Garth D. Ehrlich ◽  
Janice Andrews ◽  
Michael P. Sherman ◽  
Steven J. Greenberg ◽  
Bernard J. Poiesz
Keyword(s):  
Sequence Analysis ◽  
Dna Sequence ◽  
Genetic Heterogeneity ◽  
Transmembrane Protein ◽  
Dna Sequence Analysis ◽  
Gene Encoding

scholarly journals cDNA cloning and characterization of the protein encoded by RD, a gene located in the class III region of the human major histocompatibility complex

1993 ◽  
Vol 294 (2) ◽  
pp. 589-593 ◽  
Author(s):  
J Cheng ◽  
K J Macon ◽  
J E Volanakis
Keyword(s):  
Major Histocompatibility Complex ◽  
Amino Acid ◽  
Tandem Repeats ◽  
Cdna Clones ◽  
Major Histocompatibility ◽  
Class Iii ◽  
Human Major Histocompatibility Complex ◽  
Calculated Molecular Mass ◽  
Mouse Cdna ◽  
Histocompatibility Complex

The RD gene, initially defined in the mouse, has been mapped between the Bf and C4A genes in the human major histocompatibility complex class III region. Using the mouse cDNA as a probe, we isolated and sequenced human RD cDNA clones. The composite nucleotide sequence consisted of 1301 nucleotides, excluding a poly(A) tail at the 3′ end. It contained a single open reading frame encoding a polypeptide of 380 amino acid residues with a calculated molecular mass of 42274 Da. The most striking structural feature of the deduced amino acid sequence is a region consisting entirely of 24 tandem repeats of an Arg-Asp (or Glu) dipeptide. The human RD cDNA was expressed in Escherichia coli as a fusion protein with glutathione S-transferase and used to produce antisera in rabbits. Western blot analysis and immunoprecipitation of lysates of biosynthetically labelled HeLa cells indicated that RD is a 44 kDa nuclear protein.

scholarly journals Genetic Variation on theBAT1-NFKBIL1-LTARegion of Major Histocompatibility Complex Class III Associates with Periodontitis

2014 ◽  
Vol 82 (5) ◽  
pp. 1939-1948 ◽  
Author(s):  
K. A. Elisa Kallio ◽  
Marja Marchesani ◽  
Efthymia Vlachopoulou ◽  
Päivi Mäntylä ◽  
Susanna Paju ◽  
...  
Keyword(s):  
Major Histocompatibility Complex ◽  
Chronic Inflammatory Disease ◽  
High Serum ◽  
Health Examination ◽  
Risk Haplotype ◽  
Major Histocompatibility ◽  
Class Iii ◽  
Pocket Depth ◽  
Human Major Histocompatibility Complex ◽  
Histocompatibility Complex

ABSTRACTPeriodontitis is a chronic inflammatory disease with a multifactorial etiology. We investigated whether human major histocompatibility complex (MHC) polymorphisms (6p21.3) are associated with periodontal parameters. Parogene 1 population samples (n= 169) were analyzed with 13,245 single nucleotide polymorphisms (SNPs) of the MHC region. Eighteen selected SNPs (P≤ 0.001) were replicated in Parogene 2 population samples (n= 339) and the Health 2000 Survey (n= 1,420). All subjects had a detailed clinical and radiographic oral health examination. Serum lymphotoxin-α (LTA) concentrations were measured in the Parogene populations, and the protein was detected in inflamed periodontal tissue. In the Parogene 1 population, 10 SNPs were associated with periodontal parameters. The strongest associations emerged from the parameters bleeding on probing (BOP) and a probing pocket depth (PPD) of ≥6 mm with the genesBAT1,NFKBIL1, andLTA. Six SNPs, rs11796, rs3130059, rs2239527, rs2071591, rs909253, and rs1041981 (r2, ≥0.92), constituted a risk haplotype. In the Parogene 1 population, the haplotype had the strongest association with the parameter BOP, a PPD of ≥6 mm, and severe periodontitis with odds ratios (95% confidence intervals) of 2.63 (2.21 to 3.20), 2.90 (2.37 to 3.52), and 3.10 (1.63 to 5.98), respectively. These results were replicated in the other two populations. High serum LTA concentrations in the Parogene population were associated with the periodontitis risk alleles of theLTASNPs (rs909253 and rs1041981) of the haplotype. In addition, the protein was expressed in inflamed gingival connective tissue. We identified a novelBAT1-NFKBIL1-LTAhaplotype as a significant contributor to the risk of periodontitis. The genetic polymorphisms in the MHC class III region may be functionally important in periodontitis susceptibility.

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