蛋白质合成精要.ppt

AMINO ACID ACTIVITION * PROTEIN SYNTHESIS 蛋白质合成 TRANSCRIPTION T C A T G A T T A A G T A C A A A T Transcription takes place inside the nucleus. Part of a DNA unwinds. A G T A C A A A T A G C U G A C G G U U U Only one strand acts as a template. A G T A C A A A T A G C U G A C G G U U U Exposed base attracts complementary RNA. RNA POLYMERASE A G T A C A A A T A G C G A C G G U U U U The enzyme RNA polymerase adds one complementary RNA nucleotide to the existing one. A G T A C A A A T A G C G A C G G U U U U The enzyme RNA polymerase moves along the DNA. A G T A C A A A T G C G A C G G U U U U A The enzyme RNA polymerase moves along the DNA. A G T A C A A A T G C G A C G U U G U U A Complementary RNA nucleotide is added to the growing chain of mRNA one by one. A G T A C A A A T G C G A C G U G U U A U Complementary RNA nucleotide is added to the growing chain of mRNA one by one. A G T A C A A A T G C G A C G G U U A U U Complementary RNA nucleotide is added to the growing chain of mRNA one by one. A G T A C A A A T G C G A C G G U U A U U A Complementary RNA nucleotide is added to the growing chain of mRNA one by one. A G T A C A A A T G C G C G G U U A U U A U Complementary RNA nucleotide is added to the growing chain of mRNA one by one. A G T A C A A A T G G C G G U U A U U A U C Complementary RNA nucleotide is added to the growing chain of mRNA one by one. A G T A C A A A T U C A U G A U U A mRNA CYTOLPLASM mRNA leaves the nucleus through the nuclear pore. NUCLEOPLASM Nuclear pore A G T A C A A A T U C A U G A U U A mRNA mRNA leaves the nucleus through the nuclear pore. CYTOLPLASM NUCLEOPLASM U C A U G A U U A mRNA CODON CODON CODON A A U Leucine A C U Aspartic Acid A U G Threonine TRANSFER RNA AMINO ACIDS A A U Leucine A C U Aspartic Acid A U G Threonine Amino acids combine with the tRNAs using the energy from the splitting of ADP. TRANSLATION U C A U G A U U A mRNA U