Telomerase protein component with catalytic activity is encoded by EST2 in yeast, hTERT in humans

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#Id: 6737

#Unit 8. Inheritance Biology

Conjugation

Direct transfer of genetic material from one bacterium to another.

Two bacteria lie close together and a connection forms between them. 

After conjugation, crossing overtakes place between homologous sequences

In conjugation, DNA is transferred only from donor to recipient, with no reciprocal exchange of genetic material. 

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#Id: 9477

#Unit 4. Cell Communication and Cell Signaling

All SOCS proteins contains:

SH2 domain

SOCS box

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#Id: 9674

#Unit 4. Cell Communication and Cell Signaling

Maximal activation of PKB depends on recruitment to the cytosolic surface of the plasma membrane of two other kinases -PDK1 and PDK2.

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#Id: 838

#Unit 4. Cell Communication and Cell Signaling

ToxA is produced by both Stagonospora nodorum and Pyrenophora tritici‐repentis, which cause glume blotch and tan spot disease

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#Id: 3359

#Unit 3. Fundamental Processes

Another example of direct reversal is the removal of the methyl group from the methylated base O6 –methylguanine  In this case, a methyltransferase removes the methyl group from the guanine residue by transferring it to one of its own cysteine residues. This is costly to the cell because the methyltransferase is not catalytic; having once accepted a methyl group, it cannot be used again.