nuclear pore

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Related to nuclear pore: nuclear envelope, Nuclear pore complex

nu·cle·ar pore

an octagonal opening, about 70 nm across, where the inner and outer membranes of the nuclear envelope are continuous.

nuclear pore

one of many perforations in the NUCLEAR MEMBRANE of cells, allowing ribosomes and mRNA to leave the nucleus, and ATP, nucleotides, etc. to enter.


a small opening or empty space.

nuclear pore
a group of proteins with a central hole through which molecules pass through a nuclear membrane.
dilated pore of Winer
a benign follicular tumor that occurs on the head and neck of older cats; they resemble epidermal cysts with a keratin filled, wide opening (pore).
References in periodicals archive ?
Through several thousand gateways called nuclear pores, vast numbers of proteins and strands of ribonucleic acid, or RNA, travel between the interior of a nucleus and the cellular environment outside it, the cytoplasm.
In the early 1990s, investigators realized that specialized proteins, given such names as transportin, importin-alpha, and importin-beta, usher proteins with a nuclear localization signal to and through nuclear pores.
A part of the HIV virus called the capsid protein, acting like a key, binds to Nup358, a protein on the nuclear pore complex, unlocking the gateway and granting the virus access to the DNA.
Rome still holds that vaults move about the cytoplasm, periodically docking at nuclear pore complexes to pick up strands of mRNA for transport.
With the recent determination of the 3-dimensional structure of the nuclear pore complex, the mechanisms of nuclear transport have become more apparent.
A very small portion of IPSE can drag much larger proteins through the nuclear pores into the nucleus with it.
The barrier between nucleus and cytoplasm is usually controlled by cellular gateways called nuclear pores, which selectively import and export the molecular ingredients for life to and from the nucleus.