Glycosidase active site mutations in human -L-iduronidase
نویسندگان
چکیده
منابع مشابه
Mucopolysaccharidosis type I: molecular characteristics of two novel alpha-L-iduronidase mutations in Tunisian patients
BACKGROUND Mucopolysaccharidosis type I (MPS I) is an autosomal storage disease resulting from defective activity of the enzyme α-L-iduronidase (IDUA). This glycosidase is involved in the degradation of heparan sulfate and dermatan sulfate. MPS I has severe and milder phenotypic subtypes. AIM OF STUDY This study was carried out on six newly collected MPS I patients recruited from many regions...
متن کاملThree novel α-L-iduronidase mutations in 10 unrelated Chinese mucopolysaccharidosis type I families
Mucopolysaccharidosis type I (MPS I) arises from a deficiency in the α-L-iduronidase (IDUA) enzyme. Although the clinical spectrum in MPS I patients is continuous, it was possible to recognize 3 phenotypes reflecting the severity of symptoms, viz., the Hurler, Scheie and Hurler/Scheie syndromes. In this study, 10 unrelated Chinese MPS I families (nine Hurler and one Hurler/Scheie) were investig...
متن کاملLong-term in vitro correction of alpha-L-iduronidase deficiency (Hurler syndrome) in human bone marrow.
Allogeneic bone marrow transplantation is the most effective treatment for Hurler syndrome but, since this therapy is not available to all patients, we have considered an alternative approach based on transfer and expression of the normal gene in autologous bone marrow. A retroviral vector carrying the full-length cDNA for alpha-L-iduronidase has been constructed and used to transduce bone marr...
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Human flap endonuclease-1 (hFEN-1) is highly homologous to human XPG, Saccharomyces cerevisiae RAD2 and S.cerevisiae RTH1 and shares structural and functional similarity with viral exonucleases such as T4 RNase H, T5 exonuclease and prokaryotic DNA polymerase 5'nucleases. Sequence alignment of 18 structure-specific nucleases revealed two conserved nuclease domains with seven conserved carboxyl ...
متن کاملEffects of Active Site Mutations on Specificity of Nucleobase Binding in Human DNA Polymerase η
Human DNA polymerase η (Pol η) plays a vital role in protection against skin cancer caused by damage from ultraviolet light. This enzyme rescues stalled replication forks at cyclobutane thymine-thymine dimers (TTDs) by inserting nucleotides opposite these DNA lesions. Residue R61 is conserved in the Pol η enzymes across species, but the corresponding residue, as well as its neighbor S62, is dif...
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ژورنال
عنوان ژورنال: Glycobiology
سال: 2001
ISSN: 0959-6658,1460-2423
DOI: 10.1093/glycob/11.9.741