asmi Forum Hero
Topics: 1043 Posts: 4,609
| | 05/01/04 - 03:09 PM  
 
   
 
|   #1 |
what does it binds to? what is its role ?
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| mjl1717 Forum Hero

Topics: 955 Posts: 5,451
| | 05/01/04 - 03:27 PM  
 
   
 
|   #2 |
It seems to control gene expression 1) it has an alpha helix 2)it contains one zinc atom bound to 4 cysteine amino acids 3)it has hormone binding region 4)the 70 amino acid long region binds to specificlly to DNA segments 5)examples are -a)Transcription factor engages RNA polymerase II to the gene b)SpI c)glucocorticoid receptor,estrogen receptor, thyroid receptor, retinoic acid receptor, Vit D3 receptor. Hope this helps
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| asmi Forum Hero
Topics: 1043 Posts: 4,609
| | 05/01/04 - 04:19 PM  
 
   
 
|   #3 |
u r right mjl. Now let us put it into very specific Q about the central Zn atom in an alpha helix...what binds to it ? a. DNA b,RNA c. steroid hormone d.proteins :arrow: answer c
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