Definition of spermine in English:

spermine

noun ˈspəːmiːnˈspərmēn

mass nounBiochemistry

A deliquescent compound which acts to stabilize various components of living cells and is widely distributed in living and decaying tissues.
〔生化〕精胺，第二性征激素
A polyamine; chemical formula: (H₂N(CH₂)₃NH(CH₂)₂)₂. Compare with spermidine
Example sentencesExamples
- The binding model displayed in Fig.8 A has been observed from crystallographic studies on B-DNA dodecamers stabilized with spermine.
- The flexible polyamine spermine displays a high presence in the minor groove but does not form long-lived and structurally defined complexes.
- This may be related to the role of arginine as a biochemical precursor in the synthesis of putrescine, spermidine, and spermine, which are believed to be essential to sperm motility.
- By comparison, the tetra-amine spermine only binds weakly to peptide carboxylate groups, and not to the a-helical conformation.
- Because of their positive charges, putrescine, spermidine, and spermine show a high affinity with the acidic constituents of the cell (RNA, DNA, ATP, acidic proteins, phospholipids, etc.).

Origin

Late 19th century: so called because first found in sperm.

Definition of spermine in US English:

spermine

nounˈspərmēn

Biochemistry

A deliquescent compound which acts to stabilize various components of living cells and is widely distributed in living and decaying tissues.
〔生化〕精胺，第二性征激素
A polyamine; chemical formula: (H₂N(CH₂)₃NH(CH₂)₂)₂
Example sentencesExamples
- The flexible polyamine spermine displays a high presence in the minor groove but does not form long-lived and structurally defined complexes.
- This may be related to the role of arginine as a biochemical precursor in the synthesis of putrescine, spermidine, and spermine, which are believed to be essential to sperm motility.
- The binding model displayed in Fig.8 A has been observed from crystallographic studies on B-DNA dodecamers stabilized with spermine.
- By comparison, the tetra-amine spermine only binds weakly to peptide carboxylate groups, and not to the a-helical conformation.
- Because of their positive charges, putrescine, spermidine, and spermine show a high affinity with the acidic constituents of the cell (RNA, DNA, ATP, acidic proteins, phospholipids, etc.).

Origin

Late 19th century: so called because first found in sperm.

单词	spermine
释义	Definition of spermine in English: spermine noun ˈspəːmiːnˈspərmēn mass nounBiochemistry A deliquescent compound which acts to stabilize various components of living cells and is widely distributed in living and decaying tissues. 〔生化〕精胺，第二性征激素 A polyamine; chemical formula: (H₂N(CH₂)₃NH(CH₂)₂)₂. Compare with spermidine Example sentencesExamples The binding model displayed in Fig.8 A has been observed from crystallographic studies on B-DNA dodecamers stabilized with spermine. The flexible polyamine spermine displays a high presence in the minor groove but does not form long-lived and structurally defined complexes. This may be related to the role of arginine as a biochemical precursor in the synthesis of putrescine, spermidine, and spermine, which are believed to be essential to sperm motility. By comparison, the tetra-amine spermine only binds weakly to peptide carboxylate groups, and not to the a-helical conformation. Because of their positive charges, putrescine, spermidine, and spermine show a high affinity with the acidic constituents of the cell (RNA, DNA, ATP, acidic proteins, phospholipids, etc.). Origin Late 19th century: so called because first found in sperm. Definition of spermine in US English: spermine nounˈspərmēn Biochemistry A deliquescent compound which acts to stabilize various components of living cells and is widely distributed in living and decaying tissues. 〔生化〕精胺，第二性征激素 A polyamine; chemical formula: (H₂N(CH₂)₃NH(CH₂)₂)₂ Example sentencesExamples The flexible polyamine spermine displays a high presence in the minor groove but does not form long-lived and structurally defined complexes. This may be related to the role of arginine as a biochemical precursor in the synthesis of putrescine, spermidine, and spermine, which are believed to be essential to sperm motility. The binding model displayed in Fig.8 A has been observed from crystallographic studies on B-DNA dodecamers stabilized with spermine. By comparison, the tetra-amine spermine only binds weakly to peptide carboxylate groups, and not to the a-helical conformation. Because of their positive charges, putrescine, spermidine, and spermine show a high affinity with the acidic constituents of the cell (RNA, DNA, ATP, acidic proteins, phospholipids, etc.). Origin Late 19th century: so called because first found in sperm.
随便看	satraps satrapy sats satsang satsuma satsumas sattva sattvic sat-upon saturable saturable saturant saturant saturate saturated saturated saturated fat saturates saturates saturating saturation saturation dive saturation diving saturation point saturator