Sentences with phrase «called ribosomes»

The RNA strand is then moved out of the nucleus where enzyme - like organelles called ribosomes use it as a guide to synthesize chains of amino acids that form the desired protein.

When Walter arrived in Blobel's lab as a fresh - faced apprentice, Blobel and his colleagues had limned the outlines of the so - called signal hypothesis, which purported to explain how proteins, which are made in cellular machines called ribosomes, find their pre-destined locations within cells.

RNA was once thought to be a mere middleman, carrying genetic messages from the DNA in the nucleus out to cellular structures called ribosomes, where it directs the production of proteins.

«We have ample evidence that hundreds of the oldest ribosomal proteins still start with a valine or a leucine code and do not have the codon for methionine in the DNA,» Duax said, referring to proteins found in basic cell components called ribosomes.

To find out why, computational biologists came up with a computer model to predict how microbial metabolism and cellular composition change as cell size varies, using details about how much space a bacterium needs for its components — DNA, proteins, and the molecular factories called ribosomes — to function.

It works by isolating the protein - making machines of cells (called ribosomes), which turn mRNA copies of DNA (genes) into proteins.

The protein assembly line consists of microtubules that serve as train tracks on which the raw materials — including messenger RNA (mRNA)-- are carried to the protein - making machinery, called ribosomes.

They all use RNA molecules as messengers to transfer the information from DNA to cellular factories called ribosomes, which then build proteins, which in turn drive our metabolisms and form the structures of our cells.

This association of the RNAi machinery and a gene's message is prelude to destruction of the message before it arrives at a cellular protein factory called the ribosome.

The RNA instructions float around the cell until they encounter a structure called a ribosome.

To overcome this challenge, the students altered a sub-unit of curli DNA, called ribosome binding sites (RBS), and then used these modified RBS to specifically tune protein production, explained Erin Kim, A.B.» 19, a molecular and cellular biology concentrator.

Not exact matches

The latest such roster — 271 proteins identified in a compartment of the cell nucleus called the nucleolus — is a first step toward fully deciphering this organelle, a critical element in the construction of ribosomes, which build proteins.

Proteins roll off cells» assembly lines, the ribosomes, as long chains of links called amino acids.

Ribosomes decipher the sequence of an mRNA with the help of small cloverleaf shaped molecules called «transfer» or tRNA.

This genetic code is embodied in long strings of chemical compounds called nucleotides and is copied onto RNA molecules, which then get shipped to ribosomes, biochemical factories where protein molecules are manufactured.

Short strands of RNA called siRNA bind to the messenger RNA that carries this genetic information, preventing it from reaching the ribosome.

Then the cell's protein - production machinery, the ribosome, reads the four letters of the RNA code in sets of three letters called codons.

For this study, researchers used an approach called structure - based design to re-engineer how spectinomycin binds to the ribosome.

To visualize translation, Dr. Singer and his colleagues took advantage of a key occurrence during the first round of translation: the ribosome to which mRNAs attach must displace so - called RNA - binding proteins from the mRNAs.

In the current paper, the shapes are made up of strut - reinforced tripods, which assemble themselves from individual DNA strands in a process called â $ œDNA origami.â $ Already, at 5 megadaltons, each tripod is more massive than the largest known single protein (titin, involved in muscle contraction) and more massive than a ribosome, one of the cellular factories in which proteins are made.

However, some bicistronic vectors take advantage of an element called an Internal Ribosome Entry Site (IRES) to allow for initiation of translation from an internal region of the mRNA.

Once bound to amino acids, the tRNAs (also called amino - acyl tRNAs) will seek out ribosomes.

The ribosome is made of RNA called ribosomal RNA (rRNA).

In the case of a protein, the workers are the ribosomes and special RNA molecules called transfer RNA (tRNA).