explain alternative processing, Biology

Assignment Help:

Alternative polyadenylation sites

Exact pre-mRNAs hold more than single group of signal sequences for 3' end polyadenylation and cleavage.   In  some  cases,  the  area  of  the  instead polyadenylation   sites  is  like  which,  depending  on  the  site  chosen,  certain exons should be lost or retained in the subsequent  splicing reactions that is shown in the figure. Here the effect is to change  the coding  capacity  of the last mRNA  so which variant proteins  are  formed  depending  on  the  polyadenylation   site  used.  In  other cases,  the instead  sites both  lie within  the 3'  noncoding  region  of the pre- mRNA so in which the same coding sequences  are involved in the last mRNA irrespective of that site is used but the 3'  noncoding region can vary. Since the 3' noncoding series should have signals to control mRNA stability, the choice of polyadenylation site in this location can affect the lifetime of the resulting mRNA.

2279_22.png

Figure:  Use of alternative polyadenylation sites.


Related Discussions:- explain alternative processing

Explain academic dietitians, Teaching / academic dietitians Dietitians ...

Teaching / academic dietitians Dietitians process knowledge on all  aspects  01  nutrition  and dictetics.  They constantly keep  themselves updated  in  the necessary  informa

Glycogen synthesis, To synthesize glycogen two enzymes are needed: 1.  U...

To synthesize glycogen two enzymes are needed: 1.  UDP-glucose   pyrophosphorylase catalyzes the synthesis of UDP-glucose from UTP and glucose 1-phosphate:   The   py

Is pollution always caused by humans, Q. Is pollution always caused by huma...

Q. Is pollution always caused by humans? In the most cases pollution is caused by human activity. Other species and some abiotic factors though can also pollute an ecosystem. F

Morphological nature of endosperm, Morphological Nature of Endosperm ...

Morphological Nature of Endosperm The morphological nature of endosperm in angiosperms has been a subject of much discussion in evolution. The endosperm in gymnosperms is a g

Explain in brief about cytokines, Cytokines activate inflammatory cells lik...

Cytokines activate inflammatory cells like neutrophils and eosnophils.IL-5 is important in activation of eosnophils, IL-4 enhances IgE production by B-cells. IL-4, Il-5, IL-6, TNF-

Causes of variation, CAUSE S OF VARIATION - Effect of environmental co...

CAUSE S OF VARIATION - Effect of environmental conditions Change in the gene pattern like - (a) Random distribution of homologous genes in meiosis (b) Crossing over

Theskin, drawandlabelthemajorendocrineglandsofthehumanbody

drawandlabelthemajorendocrineglandsofthehumanbody

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd