:
capable of being induced
: such as. a : formed by a cell in response to the presence of its substrate inducible enzymes. b : activated or undergoing expression only in the presence of a particular molecule an inducible promoter.
What does it mean for a protein to be inducible?
Inducible genes are
those that have variable activity
, depending on the needs of the cell. For example, the glucose transporter proteins that muscle cells produce in response to insulin are the product of inducible genes.
What is meant by inducible enzyme?
[ ĭn-dōō′sə-bəl ] n.
An enzyme that is normally present in minute quantities within a cell
, but whose concentration increases dramatically when a substrate compound is added.
What does substrate inducible mean?
...a specific enzyme, called an inducible enzyme (e.g., β-galactosidase in Escherichia coli), occurs when cells are exposed to the substance (substrate) upon which
the enzyme acts to form a product
.
What does the word induce?
transitive verb. 1a :
to move by persuasion or influence
. b : to call forth or bring about by influence or stimulation. 2a : effect, cause.
Which is inducible enzyme example?
The Inducible enzyme is used for the breaking-down of things in the cell. ... An example of inducible enzyme is
COX-2
which is synthesized in macrophages to produce Prostaglandin E
2
while the constitutive enzyme COX-1 (another isozyme in COX family) is always produced in variety of organs in body (like stomach).
What is the difference between constitutive and inducible enzymes?
The enzymes which are always present in the
organism in constant amounts
regardless of its metabolic state are called as constitutive enzymes. ... Such enzymes are called as inducible or inductive enzymes or induced enzymes and this process of their synthesis is called as enzyme induction.
How does an inducible operon work?
Inducible operons have
proteins that can bind to either activate or repress transcription
depending on the local environment and the needs of the cell. The lac operon is a typical inducible operon. As mentioned previously, E. coli is able to use other sugars as energy sources when glucose concentrations are low.
Is lac operon positive or negative?
The lac operon is
under both negative and positive control
. The mechanisms for these will be considered separately. 1. In negative control, the lacZYAgenes are switched off by repressor when the inducer is absent (signalling an absence of lactose).
How do inducible promoters work?
Promoters
control the binding of RNA polymerase and transcription factors
. Since the promoter region drives transcription of a target gene, it therefore determines the timing of gene expression and largely defines the amount of recombinant protein that will be produced.
What is inducible gene expression?
The production of new proteins in response to external stimuli results largely from rapid activation of gene transcription
— this is known as inducible gene expression. ... Inducible genes are highly regulated and must be able to be rapidly and specifically activated in response to stimuli.
Why lac operon is an inducible operon?
Allolactose (rearranged lactose) binds to the lac repressor and makes it let go of the operator. RNA polymerase can now transcribe the operon. ... The lac operon is considered an inducible operon
because it is usually turned off (repressed), but can be turned on in the presence of the inducer allolactose
.
What is inducible and repressible operon?
Genes in an operon are transcribed as a group and have a single promoter. ... Some operons are inducible, meaning that they can be turned on by the presence of a particular small molecule.
Others are repressible
, meaning that they are on by default but can be turned off by a small molecule.
What is a better word for has?
|
owns
possesses
|
boasts
has in
keeping
|
holds maintains
|
carries controls
|
enjoys has possession of
|
How do you use the word induced?
-
I could not be induced to tell where the key was. ...
-
In 1861 the Mortara family induced the Italian government to demand the prosecution of the nurse.
What is the difference between induced and deduced?
The word
deduce
has a different meaning than induce. Whereas deduce relies on specific conclusions, induce means to derive a general principle from specific observations. Inducing implies more of a supposition. ... In practical use, deduce appears more often than induce in senses related to drawing conclusions.
