Human adenosine deaminase. cDNA and complete primary amino acid sequence.
نویسندگان
چکیده
A previously cloned partial adenosine deaminase cDNA insert (0.8 kilobase) was used to clone additional nucleotide sequences from human HPB ALL cDNA libraries. cDNA encompassing the entire coding, and 3'-untranslated regions as well as nearly all of the 5'-untranslated region was obtained. The complete amino acid sequence of the enzyme deduced from the cDNA sequence and protein sequencing consists of 362 amino acids, excluding the initiator Met, and accounts for Mr = 40,638. Secondary structure predictions assign adenosine deaminase to the alpha/beta class of proteins. Northern blot analysis with a cDNA probe showed adenosine deaminase mRNA to be present in normal to above normal amounts in B-lymphoblasts derived from adenosine deaminase-deficient patients with severe combined immunodeficiency disease. Knowledge of the cDNA and primary amino acid sequence of adenosine deaminase will be pivotal in further defining the genetic abnormality and its functional consequences in adenosine deaminase expression defects.
منابع مشابه
Atlas of Genetics and Cytogenetics in Oncology and Haematology DPP 4 ( dipeptidyl - peptidase 4 )
Note In 1979, a large molecular weight complex composed of adenosine deaminase (ADA) were reported to be found as an adenosine deaminase-binding protein (ADBP), also known as adenosine deaminase complexing protein-2 (ADCP2). In 1993, this adenosine deaminase-binding protein is determined to be identical to CD26, a T-cell activation molecule and a 110-kD glycoprotein that is present also on epit...
متن کاملExpression and regulation by interferon of a double-stranded-RNA-specific adenosine deaminase from human cells: evidence for two forms of the deaminase.
A 6,474-nucleotide human cDNA clone designated K88, which encodes double-stranded RNA (dsRNA)-specific adenosine deaminase, was isolated in a screen for interferon (IFN)-regulated cDNAs. Northern (RNA) blot analysis revealed that the K88 cDNA hybridized to a single major transcript of approximately 6.7 kb in human cells which was increased about fivefold by IFN treatment. Polyclonal antisera pr...
متن کاملIdentification of a point mutation in the adenosine deaminase gene responsible for immunodeficiency.
Deficiency of adenosine deaminase (ADA) is the cause of an autosomal recessive form of immunodeficiency. We sought to define, at a molecular level, the mutations responsible for ADA deficiency in the cell line GM-1715, derived from an immunodeficient patient. Full-length complementary DNA (cDNA) for ADA was synthesized and cloned from the cell line. Sequence analysis of the clones revealed a po...
متن کاملPurification of human double-stranded RNA-specific editase 1 (hRED1) involved in editing of brain glutamate receptor B pre-mRNA.
RNAs encoding subunits of glutamate-gated ion channel receptors are posttranscriptionally modified by RNA editing and alternative splicing. The change in amino acid sequence caused by RNA editing can affect both the kinetics and the permeability of the ion channel receptors to cations. Here, we report the purification of a 90-kDa double-stranded RNA-specific adenosine deaminase from HeLa cell n...
متن کاملADENOSINE DEAMINASE ACTIVITY IN ESTROGEN RECEPTOR POSITIVE AND NEGATIVE HUMAN BREAST CANCER CELL LINES
ABSTRACT Background: The aims of this study were to assay the activity of adenosine deaminase (ADA) in estrogen receptor positive (MCF-7) and negative (MDA-MB468) breast cancer cell lines. Methods: MDA-MB468 and MCF-7 breast cancer cell lines were cultured in complete medium, striped serum with and without 0.0 1~-LM diethylstilbestrol (DES), complete medium in the presence and absence of 111M ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of biological chemistry
دوره 259 19 شماره
صفحات -
تاریخ انتشار 1984