title: Inhibitory antibodies against endopeptidase activity of human adamalysin 19.
abstract: Human adamalysin 19 (hADAM19)/meltrin beta is a member of the ADAM (a disintegrin and metalloproteinase) family and an active metalloproteinase. It is a new metalloproteinase and disintegrin dendritic cell antigen marker. Adamalysin 19 gene was expressed in normal and transformed tissues and cells such as placenta, brain, heart, leukocytes, and colorectal adenocarcinoma SW480. To develop specific tools to investigate the functions of hADAM19, peptide antigens were rationally selected and specific polyclonal antibodies (pAbs) were developed to modulate hADAM19 activity. Anti-metalloproteinase and anti-disintegrin domain IgG molecules inhibited the alpha-2-macroglobulin cleavage by hADAM19; however, their pre-immune and anti-pro-domain IgG molecules did not. Since anti-disintegrin IgG also neutralized the proteolytic activity, the disintegrin domain may affect the hADAM19 protein folding and/or substrate binding. These pAbs may be used to specifically localize the hADAM19 protein in tissues and cells and elucidate its biological and pathological functions such as processing pro-growth factors.
authors.affiliation: Department of Chemistry and Biochemistry and Institute of Molecular Biophysics, Florida State University, Tallahassee, Florida 32306-4390, USA.
authors.forename: Y G
authors.initials: YG
authors.lastname: Zhao
authors.forename: P
authors.initials: P
authors.lastname: Wei
authors.forename: Q X
authors.initials: QX
authors.lastname: Sang
mesh_terms: D051722:ADAM Proteins; D000595:Amino Acid Sequence; D000818:Animals; D000906:Antibodies; D000941:Antigens / Q000737:chemistry / Q000235:genetics; D019483:Disintegrins; D005260:Female; D015870:Gene Expression; D006801:Humans; D008565:Membrane Proteins / Q000737:chemistry / Q000235:genetics / Q000276:immunology*; D008666:Metalloendopeptidases; D045726:Metalloproteases; D051379:Mice; D008969:Molecular Sequence Data; D009124:Muscle Proteins / Q000737:chemistry / Q000235:genetics / Q000276:immunology*; D009500:Neutralization Tests; D011247:Pregnancy; D017434:Protein Structure, Tertiary; D011817:Rabbits; D011994:Recombinant Proteins / Q000737:chemistry / Q000235:genetics / Q000276:immunology
chemical_list: D000906:Antibodies; D000941:Antigens; D019483:Disintegrins; D008565:Membrane Proteins; D009124:Muscle Proteins; D011994:Recombinant Proteins; D045726:Metalloproteases; D051722:ADAM Proteins; C411902:ADAM19 protein, human; C096116:Adam19 protein, mouse; D008666:Metalloendopeptidases