Structural genes and their control regions

The length of DNA that constitutes a structural gene is generally much greater than the number of codons needed to specify the amino acid sequence of the encoded protein (see Fig. 8.1). There are two main reasons for this the first is the presence of non-coding intervening sequences and the second is the requirement for control modules. 

6 Phosphoglucomutase, phosphoribosylpyrophosphate amidotransferase, serum albumin, vitamin D-binding protein 

Z Ornithine carbamyl transferase, iron responsive element binding protein 

Micro Dystrophia ovotransferrin, ovomucoid, G-protein ( -subunit), rRNA. myosin heavy chaia adenylyl kinase, 

P-nerve growth factor, J j-microglobulia thymidine kinase, hypoxanthine phosphoribosylbansferase, c-nul, c-fes, c-eis, c-src, neural cell adhesion molecule, histocompatability antigens, a-globin 

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