Is there a difference in net charge between heteromeric protein and monomeric protein assuming they have the same subunit
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Q: 4. trans 18:2(49,12) 18:2;9,12 w6,9 5. cis 18:3(46,9,12) 18:3;6,9,12 w6,9,12
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A: Since there are 4 option based questions we will answer all the questions.
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- If a quaternary (4°) protein structure has six N-terminus. How many total subunits does it have?What are the FOUR ways that protein function is regulated (function turned ON/OFF). Explain each.The function of proteins can be regulated in a number of ways. What is cooperativity, and how does it influence protein function?
- Disulfide linkages are uncommon in cytoplasmic proteins, whereas they are common in extracellular proteins. Why?Imagine the main chain of a protein bends back on itself, so that two amino acid residues R, and R, come close to each other. In the table below are four possibilities for what R, and R, 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 O yes serine tyrosine O no О yes valine threonine O no O yes threonine glutamine O no О yes cysteine cysteine noThe addition of ethanol, CH3CHOH, t an aqueous solution lowers the surface tension of the solution. Predict whether adding ethanol to an aqueous protein solution will tend to stabilize or unfold the protein. Briefly explain.
- In many cells that can survive severe dehydration, certain sugars replace water. These sugars interact with and protect membrane surfaces and prevent protein aggregation. What structural feature of the sugar molecules is responsible for this phenomenon?How can a protein’s potential function be determined from a protein’s primary structure? I assumed this was not possible, I thought its function was determined from its 3-dimensional structure only. Thank you for explaining this.In the membrane of a human red blood cell, the ratio of the mass of protein (average molecular weight 50,000) to phospholipid (molecular weight 800) to cholesterol (molecular weight 386) is about 2:1:1. How many lipid molecules are there for every protein molecule?
- In the following diagram of a portion of a protein, label the types of interactions that are shown. What level of protein structure are these interactions producing?Support or refute the following statement: “Double bonding provides the plasma membrane with flexibility.”Imagine the main chain of a protein bends back on itself, so that two amino acid residues R, and R, come close to each other. In the table below are four possibilities for what R, and R, 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 threonine cysteine glutamine arginine cysteine tyrosine phenylalanine glutamate specific interaction? Oyes no yes O no O yes O no Oyes O no name of specific interaction 0 0 0 0 X