Imagine the main chain of a protein bends back on itself, so that two amino acid residues R₁ and R₂ come close to each other. 1 In the table below are four possibilities for what R₁ and R₂ might be. In each case, decide whether a specific interaction could form between the residues. If a specific interaction could form, give the name of the interaction. R₁ specific interaction? R₂ ○ yes lysine glutamate no name of specific interaction ☐ threonine threonine ○ yes ○ no leucine glutamine ○ yes O no ○ yes cysteine cysteine O no
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- Imagine the main chain of a protein bends back on itself, so that two amino acid residues R, and R₂ come close to each other. In the table below are four possibilities for what R, and R₂ might be. In each case, decide whether a specific interaction could form between th residues. If a specific interaction could form, give the name of the interaction. R₁ R₂ specific interaction? name of specific interaction X 5 O yes valine phenylalanine hydrogen bonding O no O yes threonine tyrosine hydrogen bonding O no O yes lysine glutamate O no phenylalanine serine O yes О по O Explanation Check 3 W E R % 5 7 8 LLC. All Rights Reserved Terms of Use Privacy Comer G H K Z X V B N M alt H option cmd P H alt cmd opImagine the main chain of a protein bends back on itself, so that two amino acid residues R₁ and R₂ come close to each other. In the table below are four possibilities for what R₁ and R2 might be. In each case, decide whether a specific interaction could form between the residues. If a specific interaction could form, give the name of the interaction. R₁ R₂ specific interaction? name of specific interaction x yes alanine valine O no isoleucine asparagine ○ yes O no yes lysine glutamate ☐ O no yes threonine asparagine O noIdentifying specific interactions between residues in a protein Imagine the main chain of a protein bends back on itself, so that two amino acid residues R₁ and R2 come close to each other. In the table below are four possibilities for what R, and R₂ might be. In each case, decide whether a specific interaction could form between the residues. If a specific interaction could form, give the name of the interaction. A Z R₁ R₂ specific interaction? name of specific interaction O yes cysteine cysteine 0 О по O yes Isoleucine O asparagine O no O yes lysine glutamate 0 O no O yes alanine isoleucine O O no Explanation Check 3 W E R alt option cmd H 5 6 8 H 5 ILLC. All Rights Reserved. Terms of Use Privacy Center Accessib V B N M дв cmd P alt option
- Imagine the main chain of a protein bends back on itself, so that two amino acid residues R, and R₂ come close to each other. In the table below are four possibilities for what R, and R₂ might be. In each case, decide whether a specific interaction could form between residues. If a specific interaction could form, give the name of the interaction. R₁ R₁₂ specific interaction? name of specific interaction X 5 O yes O valine phenylalanine 0 О по O yes threonine tyrosine 0 O no O yes lysine glutamate 0 O no O yes phenylalanine serine Π O no Explanation Check Vicoran Hill LLC. All Rights Reserved. Terms of Use Privacy CenterQ1. Eticlopride is a dopamine antagonist, which can block dopamine receptor sites and influence levels of dopamine. The molecule is involved in a number of intermolecular interactions with amino acids in the G protein-coupled receptor. о но ČI Eticlopride i) Draw a suitable diagram to indicate where the following amino acids might interact with the molecule: phenylalanine; valine; histidine; tyrosine. In your answer, please draw the amino acids and show the interaction. ii) For each interaction you have shown, state the nature of that interaction (e.g. H- bonding, pi-pi etc.)Examine the R groups of two amino acids illustrated below and specify the type of interaction that will occur between them in a protein tertiary or quaternary structure. OC-CH₂ (CH,),-NH-C-NH, H-C-NH, +NH₂ Asp O Hydrophobic interaction O Hydrogen bond O Disulfide bridge Salt bridge Arg
- The amino acid sequence shown below is a short excerpt (residues 130-172) from the rod domain of an a-keratin-like protein. Predict the effect of each of the amino acid substitutions (stabilize, destabilize, no effect) and explain your reasoning. 130 - ATEFKTRFDDAALRANDIQL VIRSNEITADLIKDRLDQITTYY - 172 a) Substitution of S in place of A at position 140. b) Substitution of V in place of I at position 147.Examine the R groups of two amino acids illustrated below and specify the type of interaction that will occur between them in a protein tertiary or quaternary structure. -(CH,)-NH-C-NH, +NH₂ Arg Salt bridge C-CH₂ Asp O Hydrogen bond O Hydrophobic interaction O Disulfide bridgeComplete the table for the ionizable groups of the fictitious amino acid hypothetinine. Group alpha-amino alpha-carboxyl Ka 5.24 x 10-⁹ 2.13 x 10-3 pKa (to TWO decimals) 8.9 2.7 Average charge of group when pH=pK (to ONE decimal) -0.5 +0.5
- H₂N Combination of two or more protein units 7. Which type of cross-link involves interactions between two cysteine amino acids? 8. Which type of cross-link would form between the following amino acids? Η Ο || H₂N-C-C-OH T CH₂ C=O NH₂ Η Ο LL H₂N-C-C-OH T CH₂ OH 9. To what main enzyme class do the nzym that catalyze the following reaction belong? (oxidoreductases, transferases, hydrolases, lyases, isomerases, ligases) HO | || I c-c-N-C-COO + H₂O IT HR₂ R₁ H 1 This bond is cleaved H H₂N-C-COOⓇ I R₂ Wilter navy q H I H₂N-C-C00 1 R₁ •Qisulfide 10. Briefly explain the Lock and Key enzyme model.Think of the chemical reactions in which the H⁺ ion is involved. how many positions can this ion bind to lovastatin in the FigureAmino acids that you would expect to line the binding pocket of a lipid-binding protein include_ Amino acid structures: SH nycoon XOOOH COOH COOH CH H₂N COOH H₂N H₂N Yaan COOH لی کر لا م سكس COOH ala, leu, phe Olys, ala, cys O ser, ala, his ser, thr, ala H₂N H₂N م H₂N OH COOH COOH HEN " H₂N COOH COOH NH₂ H₂N COOH COOH H₂N HN H₂N H₂N COOH OH COOH H₂N COOH COOH عمر کے محمد you H₂N COOH NH H₂N COOH