Concept explainers
(a)
Interpretation:
The number of atoms present in this structure is to be determined.
Concept Introduction:
These images are provided with the data for the representation of different variable in the structure. In PDB file of structure coordinates are used for the representation of protein, RNA and atoms and other different components present in structure.
(b)
Interpretation:
The visibility of the bases of
Concept Introduction:
These images are provided with the data for the representation of different variable in structure. In PDB file of structure coordinates are used for the representation of protein, RNA and atoms and other different components present in the structure.
(c)
Interpretation:
Double helical region of RNA in structure needs to be determined.
Concept Introduction:
These images are provided with the data for the representation of different variable in the structure. In PDB file of structure coordinates are used for the representation of protein, RNA and atoms and other different components present in the structure.
.
(d)
Interpretation:
Hit a right click on the image, after that select the ‘Select' option for all proteins. After that, again hit the right click on that image and now select ‘Render' option after this ‘Scheme' and then ‘CPK space fill' option. This results in highlighted ribosomal protein. Now, close the all protein selection tab and now select ‘Nucleic’ then select' ‘CPK space fill' from render
Concept Introduction:
These images are provided with the data for the representation of different variable in structure. In PDB file of structure, coordinates are used for the representation of protein, RNA and atoms and other different components present in structure.
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Chapter 30 Solutions
Biochemistry
- Exploring the Structure of the 30S Ribosomal Subunit Go to www.pdh.org and bring up PDB file 1GIX, which shows the 30S ribosomal subunit, the three tRNAs, and mRNA. In the box on the right titled ‘Biological Assembly.� click “More Images.� and then scroll down to look at the Interactive Vic By moving your cursor over the image, you can rotate it to view it from any perspective. a. How are the ribosomal proteins represented in the image? b. How is the 16S rRNA portrayed? c. Rotate the image to see how the tRNAs stick out from the structure. Which end of the tRNA is sticking out? d. Where will these ends of the tRNAs lie when the 50S subunit binds to this complex?arrow_forwardPlease write a short summary with this information, thank you!arrow_forwardMy PDB code: 3GRS residue point: HIS467 mutation: LEU Describe why this position in your protein is important and outline the effects the mutation will have on the 3D structure and the function of your protein. (up to 50 words)arrow_forward
- The term subunit can be used in a variety of ways. What is the difference between a protein subunit and a ribosomal subunit?arrow_forwardSAY IT WITH DNA: PROTEIN SYNTHESIS WORKSHEET: Practice Pays Having studied the process by which DNA directs the synthesis of proteins, you should be ready to decode some DNA "secret" messages. To do this, you must follow the procedure of protein synthesis as this is taking place right now in your cells; no short cuts! Practice these steps by following and finishing the partially solved message below. STEP 1: "Build" the mRNA molecule, matching the RNA nucleotides to the DNA nucleotides properly, letter by letter. (For purposes of simplicity, it will be assumed that this mRNA is bacterial; there are no introns to cut out!) STEP 2: Figure out the tRNA triplets (codons) which would fit the mRNA triplets (letter by letter). STEP 3: Look up each tRNA codon in the tRNA Dictionary (below), and find the corresponding symbol and amino acid abbreviation for that codon. Record that one-letter symbol (and its amino acid) below each codon. "Spc" = "space". If you have done this correctly, the…arrow_forwardC. The primary structure is the linear sequence of amino acids linked together in a polymer (determined by the genetic code è mRNA codons). Draw the chemical structure of the primary structure of the SerCys-Lys polymer (with the appropriate covalent bonds) that would result if the ribosome completed the condensation reactions. Clearly label the N- and C- terminus of the polypeptide.arrow_forward
- b. What is the difference between the 3' and the 5' ends of a nucleotide chain? C. Do the chains run the same way? d. How are the chains connected? e. Which bases bond to each other? f. What kinds of bonds hold the chain together? 3. What are the main differences between RNA and DNA? 4. Distinguish between the structure of pyrimidines and purines. Explain why adenine bonds only to thymine. 5. Name the five nitrogenous bases in the table below, and put an X in the correct column for each base. Then indicate if the base if found in DNA (D), RNA (R), or both (B) hparrow_forwardAnswer the following questions regarding the diagram (below) showing translation. The ribosome is shown as the blue and green structure, the RNA is the horizontal line labeled with nucleotide abbreviations, and the tRNAs are shown as colored blocks with the anticodon paired to the codon. • What stage of translation is shown? [Select] • Which position shows the "A" position? [ [Select] • Which end of the RNA is the 5' end? [Select] • Which base of the anticodon "AUC" (shown in the diagram) is the 5' end? [Select] CAG GAUCAUCGUCUAGAUUGCACAAUarrow_forwardPlease answer the following question, thank you!arrow_forward
- Eukaryotic ribosomes (choose all that apply) Select one or more answers and submit. For keyboard navigation... SHOW MORE ✓ a b C d e Multiple answers: Multiple answers are accepted for this question f are composed of a large subunit and a small subunit. are composed of a single RNA are composed of a single protein. are composed of multiple RNAs and multiple proteins. are always found in a constant number in a growing dividing cell. fluctuate in numbers based on the needs of the cell.arrow_forwardChart is Given for you: Below is a chart of values for actual enzymes. Enzyme Km (M) kcat (1/s)Chymotrypsin 1.5 × 10^−2 0.14Pepsin 3.0 × 10^−4 0.5Tyrosyl-tRNA synthetase 9.0 × 10^−4 7.6Ribonuclease 7.9 × 10^−3 7.9 × 10^2Carbonic anhydrase 2.6 × 10^−2 4.0 × 10^5Fumarase 5.0 × 10^−6 8.0 × 10^2 Assume the enzyme concentration is equal across all samples (and is equal to 1). (Answer a and b only)a. Which enzyme will have the highest V0 at very high substrate concentrations? (1 M). Why? b. Which will have the highest V0 at very low substrate concentrations (5.0 × 10^−12). Why?arrow_forwardDescribe why this position in your protein is important and outline the effects the mutation will have on the 3D structure and the function of your protein. (up to 50 words) My PDB code: 3GRS Residue point: HIS 467 Mutation: LEU 467arrow_forward
- BiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage Learning