Free online medical dictionary containing medical terms divided by initial. Search for medical terms.

Medical dictionary

The medical dictionary contains a thousands medical terms. MedicalVocabulary.org is very easy to use: just click on the letter to present at the right site to access all the medical terminology beginning with the letter selected.

To search for words in the dictionary medical terms you can use the free search tool that can be found on the right.

We are always looking for new words, if you found someone contact us and we will add and for you!

A random medical term

Topoisomerase

A class of enzymes that alter the supercoiling of double-stranded DNA. (In supercoiling the DNA molecule coils up like a telephone cord, which shortens the molecule.) The topoisomerases act by transiently cutting one or both strands of the DNA. Topoisomerase type I cuts one strand whereas topoisomerase type II cuts both strands of the DNA to relax the coil and extend the DNA molecule.

The regulation of DNA supercoiling is essential to DNA transcription and replication, when the DNA helix must unwind to permit the proper function of the enzymatic machinery involved in these processes. Topoisomerases serve to maintain both the transcription and replication of DNA.

Aside from topoisomerases I and II, there are more discovered topoisomerases. Topoisomerase III may regulate recombination while topoisomerase IV regulates the process of segregating newly replicated chromosomes from one another.
Copyright © 2009-2017 | Is prohibited also the partial reproduction of graphics and contents.
Sitemap | Privacy policy | Contacts

n99.it | P.I. 02234210744