Spermine synthase.
Spermine synthase.
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DOI:
10.1007/s00018-009-0165-5
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发表时间:
2010-01
影响因子:
8
通讯作者:
Michael, Anthony J.
中科院分区:
文献类型:
--
作者:
Pegg, Anthony E.;Michael, Anthony J.
Spermine is present in many organisms including animals, plants, some fungi, some archaea, and some bacteria. It is synthesized by spermine synthase, a highly specific aminopropyltransferase. This review describes spermine synthase structure, genetics, and function. Structural and biochemical studies reveal that human spermine synthase is an obligate dimer. Each monomer contains a C-terminal domain where the active site is located, a central linking domain that also forms the lid of the catalytic domain, and an N-terminal domain that is structurally very similar to S-adenosylmethionine decarboxylase. Gyro mice, which have an X-chromosomal deletion including the spermine synthase (SMS) gene, lack all spermine and have a greatly reduced size, sterility, deafness, neurological abnormalities, and a tendency to sudden death. Mutations in the human SMS lead to a rise in spermidine and reduction of spermine causing Snyder-Robinson syndrome, an X-linked recessive condition characterized by mental retardation, skeletal defects, hypotonia, and movement disorders.
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影响因子:
1.2
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Hosoya, R;Hamana, K;Itoh, T
通讯作者:
Itoh, T
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通讯作者:
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