Acid sphingomyelinase possesses a domain homologous to its activator proteins: Saposins B and D
نویسندگان
چکیده
منابع مشابه
Effect of saposins on acid sphingomyelinase.
The effect of saposins (A, B, C and D) on acid sphingomyelinase activity was determined using a crude human kidney sphingomyelinase preparation and a purified sphingomyelinase preparation from human placenta. Saposin D stimulated the activity of the crude enzyme by increasing its apparent Km and Vmax. values for sphingomyelin hydrolysis. Unlike the crude enzyme, the activity of the purified enz...
متن کاملSaposins A, B, C, and D in plasma of patients with lysosomal storage disorders.
BACKGROUND Early diagnosis of lysosomal storage disorders (LSDs), before the onset of irreversible pathology, will be critical for maximum efficacy of many current and proposed therapies. To search for potential markers of LSDs, we measured saposins A, B, C, and D in patients with these disorders. METHODS Four time-delayed fluorescence immunoquantification assays were used to measure each of ...
متن کاملA model of the acid sphingomyelinase phosphoesterase domain based on its remote structural homolog purple acid phosphatase.
Sequence profile and fold recognition methods identified mammalian purple acid phosphatase (PAP), a member of a dimetal-containing phosphoesterase (DMP) family, as a remote homolog of human acid sphingomyelinase (ASM). A model of the phosphoesterase domain of ASM was built based on its predicted secondary structure and the metal-coordinating residues of PAP. Due to the low sequence identity bet...
متن کاملIn Silico Characterization of Proteins Containing ARID-PHD Domain and Its Expression in Aeluropus littoralis Halophyte
Abiotic stresses are the most important factors that reduce the yield of crops. In this case, Bioinformatics analysis plays an important role to study genes, and their relatedness as well as prediction their function in response to abiotic stresses. Among all domains, ARID-PHD domain has been identified in plants and animals and has a very significant role in growth regulation, cell cycle, and ...
متن کاملpetrology and geochemistry of khar-bash (western shahrood) and its relation ship to iron mineralization
منطقه مورد مطالعه در 23 کیلومتری جنوب غرب شهرستاشاهرود قرار دارد که در نقشه 100000/1 شاهرود قرار گرفته است.ناحیه مورد مطالعه در تقسیمات ساختاری ایران بخشی از زون البرز شرقی است . در طی سنوزوئیک این زون به شدت تحت تأثیر فازهای کوهزایی آلپی قرار گرفته و فعالیت های آتشفشانی انوسن در قسمت های غربی آن دیده می شود . از نظر ترکیب سنگ شناسی منطقه مورد مطالعه متنوع و بیشتر شامل سنگ های رسوبی مانند : آ...
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ژورنال
عنوان ژورنال: Protein Science
سال: 1994
ISSN: 0961-8368
DOI: 10.1002/pro.5560030219