draw a guanine nucleobase and label all possible H bond donor and H bond acceptor?
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Nucleotides
It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic Acids
Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.
1 draw a guanine nucleobase and label all possible H bond donor and H bond acceptor?
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- CH3 23) In the following short nucleic acid circle and label the following structural elemen A: phosphodiester linkage, B: Cytosine, C: N-glycosidic linkage and D: 3'-phosphate. NH2 N. HO H. N- H. H. 0=P-0 N. NH2 NH2 H. N. H. N. 0=P-O H. H H. H. H. 1. 0=P-0 :- HIIdentify the type of base and sugar group present in each nucleotide or nucleoside. HO. H3C. CH₂ OH -²03POCH2 OH 'N N ΝΗ NH₂ Molecule 1 O pyrimidine, deoxyribose O pyrimidine, ribose purine, ribose O purine, deoxyribose Molecule 2 pyrimidine, ribose O pyrimidine, deoxyribose purine, ribose O purine, deoxyribose(a) Draw diagrams to show how the four synthetic oligonucleotides below could base-pair to form a stable model Holliday junction. W 5' GATCGCATTGTAGCCGTAGGTCCACTGTAA 3’ X 5' GTCCCATACGTAGCCGTAGGACATGTACCG 3' Y 5' CGGTACATGTCCTACGGCTACAATGCGATC 3' Z 5' TTACAGTGGACCTACGGCTACGTATGGGAC 3' I and 21
- Draw the potential tautomers of guanine. Based on Question 1c) (i), label the patterns of hydrogen bond acceptors, donors and non-polar atoms/groups in the minor groove of the GT base pair.Given the structures of the ribonucleotides and deoxyribonucleotides: Adenine Uracil Thymine HN Adenine NH HO-P-0- CH2 HO-P-0 CH2 HO-P-0-CH2 HO-P-0-CH он он он он OH H OH H Cytosine Cytosine Guanine Guanine NH2 NH NH2 CH2 HOo CH2 HO-P-0 -CH2 он он он он OH H OH H • Draw the structure of the polyribonucleotide UAGCCUG. Draw the structure of the polydeoxyribonucleotide CGTAGAT.2. | Calculate the overall charge (pH 7) on the following three polypeptides and answer the questions below. Assume the following pKa values: N-terminal -NH3®, 7.0; all -COOH groups, 4.0; Arg, 12.5; Cys, 8.4; His, 6.0; Lys, 10.0; Tyr, 10.0. (A) Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val-Gly-Lys-Lys-Arg-Arg-Pro-Val-Lys-Val-Tyr-Pro-Asp-Ala -Gly- Glu-Asp-Gln- Ser-Ala-Glu-Ala-Phe-Pro-Leu-Arg-Glu-Phe (B) Ser-Tyr-Ser-Met-Glu–His-Phe-Arg–Trp–Gly-Ala-Pro-Val-Gly-Glu-Glu-Cys-Asp-Pro-Val-Glu–Val-Tyr-Pro-Asp- Ala-Gly-Glu-Asp-Gln-Ser-Ala-Glu-Ala-Phe-Pro-Leu-Glu-Phe-Cys-Ser-Tyr-Ser-Met-Glu-His-Phe-Asp-Trp-Gly- Asp-Pro-Val-Gly-Pro-Asp-Ala-Gly-Asp-Gln-Pro-Val-Gly-Glu-Glu-Cys-Asp-Pro-Val-Glu-Val-Tyr-Pro-Asp-Ala | (C) Gly-Ser-Val-Arg-Asp-Pro-Val-Lys-Glu–Val-Tyr-Pro-Asp- Lys-Ala-Gly-Arg-Glu-Ser-Arg-Ala (a) Which of the three peptides would elute first from a gel filtration column? (b) Which of the three peptides would migrate the fastest on SDS-PAGE (c) Which of the three peptides could be…
- 2. | Calculate the overall charge (pH 7) on the following three polypeptides and answer the questions below. Assume the following pKa values: N-terminal -NH3®, 7.0; all -COOH groups, 4.0; Arg, 12.5; Cys, 8.4; His, 6.0; Lys, 10.0; Tyr, 10.0. (A) Ser-Tyr-Ser-Met-Glu–His–Phe–Arg–Trp-Gly-Lys-Pro–Val-Gly-Lys-Lys-Arg-Arg-Pro–Val-Lys-Val-Tyr-Pro-Asp-Ala -Gly- Glu--Asp-Gln- Ser-Ala-Glu-Ala-Phe-Pro-Leu-Arg-Glu-Phe (B) Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Ala-Pro-Val-Gly-Glu-Glu-Cys-Asp-Pro-Val-Glu-Val-Tyr-Pro-Asp- Ala-Gly-Glu-Asp-Gln-Ser-Ala-Glu-Ala-Phe-Pro-Leu-Glu-Phe-Cys-Ser-Tyr-Ser-Met-Glu-His-Phe-Asp-Trp-Gly- | Asp-Pro-Val-Gly-Pro-Asp-Ala-Gly-Asp-Gln-Pro-Val-Gly-Glu-Glu-Cys-Asp-Pro-Val-Glu-Val-Tyr-Pro-Asp-Ala (C) Gly-Ser-Val-Arg-Asp-Pro-Val-Lys-Glu–Val-Tyr-Pro-Asp- Lys-Ala-Gly-Arg-Glu-Ser-Arg-Ala 11. - - I C'IL- - 1! (e) Which of the above peptides would elute last from a gel filtration column? (f) Which of the three peptides would migrate the slowest on SDS-PAGE (g) Which of the three…Name the nucleosides or nucleotides. HOCH 2 OH HOCH 2 OH -20 POCH2 OH `N OH N NH₂ -Н N NH₂Match the following nucleobases (designated AD) with their names and answer questions about them. NH, NH, C D NH2 Note that some of the items from the answer list should NOT be used. Guanine 1. Aand B - Cytosine 2 Cand D • Adenine 3. Not shuwn v Thymine 4. D v Uracil 5. B a Aand C v Which of tho shown bases are pyrimidines? 7. A and O v Which of the shown bases form canonical A-T Watson-Crick base pair? S. A v Which of the shown bases form canonical G-C Watson.Crick base-pair? 9. Band C 10. C 11. Band D
- 2. | Calculate the overall charge (pH 7) on the following three polypeptides and answer the questions below. Assume the following pKa values: N-terminal –NH3®, 7.0; all -COOH groups, 4.0; Arg, 12.5; Cys, 8.4; His, 6.0; Lys, 10.0; Tyr, 10.0. (A) Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys–Pro–Val–Gly–Lys–Lys–Arg-Arg-Pro-Val-Lys–Val-Tyr-Pro-Asp-Ala -Gly- Glu-Asp-GIn– Ser-Ala-Glu-Ala-Phe-Pro-Leu-Arg-Glu-Phe (B) Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Ala-Pro-Val-Gly-Glu-Glu–Cys-Asp-Pro-Val-Glu–Val–Tyr-Pro-Asp- Ala-Gly-Glu-Asp-Gln-Ser-Ala-Glu-Ala-Phe-Pro-Leu-Glu-Phe-Cys-Ser-Tyr-Ser-Met-Glu–His-Phe-Asp-Trp-Gly- Asp-Pro-Val-Gly-Pro-Asp-Ala-Gly-Asp-Gln-Pro-Val–Gly–Glu-Glu-Cys-Asp-Pro–Val-Glu–Val–Tyr-Pro-Asp-Ala (C) Gly-Ser-Val-Arg-Asp-Pro-Val-Lys-Glu-Val-Tyr-Pro-Asp- Lys–Ala-Gly-Arg-Glu-Ser-Arg-Ala (d) Which of the three peptides would migrate the closest to the anode in isoelectric focusing? (e) Which of the above peptides would elute last from a gel filtration column? (f) Which of the three…H2N 1.) Look carefully at this nucleotide: N: N- Но-Р-О OH a.) Number the carbons in the sugar group. (Remember the "prime" symbols.) b.) Is this a purine or a pyrimidine? How do you know? c.) Would this nucleotide be used for DNA or RNA? How do you know? (Be specific.) d.) Is this nucleotide ready to be used for DNA replication or RNA transcription? Why/why not? e.) If this nucleotide were incorporated into a growing DNA or RNA strand, where would the next added nucleotide be attached to this one?6-One method to determine proximity of two locations in a protein molecule or protein complex is FRET. This technique uses fluorescence transfer between two fluorophores where the ability of the transfer to occur is correlated to distance between the two residues. A) On the following graph using colored pencils, pens, or markers draw the emission spectra from the donor and the absorbance spectra of the acceptor (this should be a general schematic, does not need to be a FRET pair). Include a key for your graph B) As a rescarch student in my group you want to study the proximity of two residues in clamp region of a protein. Draw a schematic of your protein and label the two locations of your fluorophores. In 2-4 sentences (or figures) explain how your FRET fluorophores would give determine if these two residues were close to one another.