Definition of porin in English:

porin

noun ˈpɔːrɪnˈpôrən

Biochemistry

Any of a class of proteins whose molecules can form channels (large enough to allow the passage of small ions and molecules) through cellular membranes.
〔生化〕（膜）孔蛋白
Example sentencesExamples
- These molecular sieving properties are due to a major class of proteins called porins that form trimeric channels in the outer membrane.
- Bacterial outer membrane porins are classified into channels specific for the uptake of nutrients, such as maltose or sucrose, and unspecific pore proteins.
- This function is accomplished by a number of membrane channel proteins called porins, which display a wide range of permeability profiles.
- Extramembranous loops are crucial in regulating the activity of TonB-dependent receptors and other outer membrane proteins such as porins, by providing suitable sites for substrate recognition, selectivity, or binding.
- It functions as an anion-selective porin allowing the passage of small molecules through the outer membrane.

Origin

1970s: from Greek poros 'pore' + -in¹.

Definition of porin in US English:

porin

nounˈpôrən

Biochemistry

Any of a class of proteins whose molecules can form channels (large enough to allow the passage of small ions and molecules) through cellular membranes.
〔生化〕（膜）孔蛋白
Example sentencesExamples
- Extramembranous loops are crucial in regulating the activity of TonB-dependent receptors and other outer membrane proteins such as porins, by providing suitable sites for substrate recognition, selectivity, or binding.
- It functions as an anion-selective porin allowing the passage of small molecules through the outer membrane.
- Bacterial outer membrane porins are classified into channels specific for the uptake of nutrients, such as maltose or sucrose, and unspecific pore proteins.
- This function is accomplished by a number of membrane channel proteins called porins, which display a wide range of permeability profiles.
- These molecular sieving properties are due to a major class of proteins called porins that form trimeric channels in the outer membrane.

Origin

1970s: from Greek poros ‘pore’ + -in.

词汇	porin
释义	Definition of porin in English: porin noun ˈpɔːrɪnˈpôrən Biochemistry Any of a class of proteins whose molecules can form channels (large enough to allow the passage of small ions and molecules) through cellular membranes. 〔生化〕（膜）孔蛋白 Example sentencesExamples These molecular sieving properties are due to a major class of proteins called porins that form trimeric channels in the outer membrane. Bacterial outer membrane porins are classified into channels specific for the uptake of nutrients, such as maltose or sucrose, and unspecific pore proteins. This function is accomplished by a number of membrane channel proteins called porins, which display a wide range of permeability profiles. Extramembranous loops are crucial in regulating the activity of TonB-dependent receptors and other outer membrane proteins such as porins, by providing suitable sites for substrate recognition, selectivity, or binding. It functions as an anion-selective porin allowing the passage of small molecules through the outer membrane. Origin 1970s: from Greek poros 'pore' + -in¹. Definition of porin in US English: porin nounˈpôrən Biochemistry Any of a class of proteins whose molecules can form channels (large enough to allow the passage of small ions and molecules) through cellular membranes. 〔生化〕（膜）孔蛋白 Example sentencesExamples Extramembranous loops are crucial in regulating the activity of TonB-dependent receptors and other outer membrane proteins such as porins, by providing suitable sites for substrate recognition, selectivity, or binding. It functions as an anion-selective porin allowing the passage of small molecules through the outer membrane. Bacterial outer membrane porins are classified into channels specific for the uptake of nutrients, such as maltose or sucrose, and unspecific pore proteins. This function is accomplished by a number of membrane channel proteins called porins, which display a wide range of permeability profiles. These molecular sieving properties are due to a major class of proteins called porins that form trimeric channels in the outer membrane. Origin 1970s: from Greek poros ‘pore’ + -in.
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