Protein Synthesis Part 1
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| Described ribosome couple | show 🗑
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| show | The activity of protein synthesis. More ribosomes= more protein synthesis
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| Name the four stages of protein synthesis | show 🗑
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| show | Charged state. Amino acid is esterfied to tRNA. catalyzed by aminoacyl tRNA synthetase
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| show | Has a modified histone. Present in EF-2, highly suseptible to inhibition of synthesis by and exotoxin produced by corynebeacterium dipthariae
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| show | Catalyzes the modification by mono-ADP-ribosylation. Consumes NAD as a substrate by breaking the ribose-nucleotinamide bond. NAD is covalently attached to N
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| show | It is a composite made up of lysine and spermidine on the other end. Present in eIF-5a. Related to the destruction of pancreatic islets when you have cytokine induced inflammation
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| Selenocysteine | show 🗑
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| What direction is proteins synthesized in? | show 🗑
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| show | CCA at 3'. Adaptor molecule, 2 ends are anchoring the AA at the 3' end & at other end there is anticodon loop which interacts with mRNA. 5' loop=di-hydrouridine. 3' loop=T-psuedouridine C loop
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| Feature of psudouracil | show 🗑
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| show | Refers to the first base of the anticodon
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| show | tRNA oriented to your right (CCA to right). Synthesase attacks from front to 2' position and need to be moved to 3'
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| Class II aminoacyl synthetase | show 🗑
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| Ribosome of Pro | show 🗑
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| show | 80s--40s and 60s
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| show | Have E, P and A sites. First aminoacyl tRNA positions to the P site. Has enzymatic activity called the peptidyl transferase (ribozyme). Organization of small unit allos peptide bond formation.
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| show | Lacks cap structure, has shine delgarno sequence which is purine rich at 5' UTR (9-16nts) Complementary with 3' end of 16s
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| Describe the mRNA | show 🗑
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| AUG | show 🗑
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| Degeneracy of genetic code | show 🗑
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| show | If you have A or C there is no deviation. G, T or hypoxanthine (I) you have flexibility. I can pair with A, C or U.
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| What step of the process determines the incorporation of amino acids? | show 🗑
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| show | To make sure tRNA is right for AA
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| Role of transformylase | show 🗑
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| show | 1. Aminoacylation: ATP to AMP. 2. Initiation: ATP and extra ATP in Euk for mRNA binding. 3. Elongation: Aminoacyl binding-GTP, tranlocation-GTP. 4. Termination: GTP
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