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What is the charge of a Peptide with sequence aggdrleeq at pH 7.0?
At a neutral pH i.e. pH 7, only five of the twenty common amino acids carry a net positive or a net negative charge. Aspartic acid and Glutamic acid are negatively charged (-1), at a neutral pH the carboxlic side chains lose a H+ ion Lysine, Arginine and Histidine are positively charged (+1), at a neutral pH the side chains accept a H+ ion. All other amino acids are generally uncharged (0). It is therefore easy to work out the net charge of any sequence. All sequences contain the one letter abbreviation for each amino acid. Here the sequence is "aggdrleeq" a=alanine (uncharged = 0) g=glycine (uncharged = 0) g=glycine (uncharged = 0) d=aspartic acid (negatively charged = -1) r=arginine (positively charged = +1) l=leucine (uncharged = 0) e=glutamic acid (charged = -1) e=glutamic acid (charged = -1) q=glutamine (uncharged = 0) Add up all the charges -3, +1 gives a total peptide charge of -2.
What are the parts of an amino acid molecule?
An amino acid molecule consists of an amino group (NH2), a carboxyl group (COOH), a central carbon atom (α-carbon), a hydrogen atom, and a side chain (R group) that varies among different amino acids.
How would the amino acid sequence produced by the mutant strand compare to the amino acid sequence produced by series 1?
The mutant strand would likely have a different amino acid sequence compared to series 1 due to the mutation in the DNA sequence. The mutant strand may result in changes in the protein structure and function if the mutation leads to a substitution, deletion, or insertion of a nucleotide in the coding region of the gene.
How many codons would be needed if a bacterial protein contains 150 amino acids?
1. the start codon 2. 150 codons, 1 for each amino acid 3. the stop codon The total number of different codons is 64...if this question is asking about unique codons used the answer will depend on which amino acids are in the peptide.
A polypeptide found in the cytoplasm of a cell contains 12 amino acids How many nucleotides would be required in the mRNA for this polypeptide to be translated?
Since each amino acid is coded for by a specific triplet of nucleotides (codon), and there is a start codon and a stop codon, we need 15 nucleotides in the mRNA (3 nucleotides for each amino acid + 3 for start codon + 3 for stop codon).
What is tyrosine charge at pH 4?
we can't tell the charge of lysine at 4.5 because the PKa is not given. we can only know what charge it carries with the PKa value on carboxyl group or amine group.And to know the charge remember when PH is less than PKa it is always 0 while when PH is higher than PKa it is always -1 on carboxyl group. For the amine group it is always +1 as the PKa is always higher than the PH. so for example we have PKa1 2.19 PKa 5.2 for caboxyl group and 9.67 For amino group. to deter mine the charge is on pka1 the charge -1 because PH4.5 is higher than the pka,while on pka 2 the charge is 0 as PH 4.5 is lower than PKa.while for amine group it is + 1 because PKa is higher than PH4.5 so there the charge on lysine will be calculated -1+0+1=0. that's how i understand it
What is the charge of a Peptide with sequence aggdrleeq at pH 7.0?
At a neutral pH i.e. pH 7, only five of the twenty common amino acids carry a net positive or a net negative charge. Aspartic acid and Glutamic acid are negatively charged (-1), at a neutral pH the carboxlic side chains lose a H+ ion Lysine, Arginine and Histidine are positively charged (+1), at a neutral pH the side chains accept a H+ ion. All other amino acids are generally uncharged (0). It is therefore easy to work out the net charge of any sequence. All sequences contain the one letter abbreviation for each amino acid. Here the sequence is "aggdrleeq" a=alanine (uncharged = 0) g=glycine (uncharged = 0) g=glycine (uncharged = 0) d=aspartic acid (negatively charged = -1) r=arginine (positively charged = +1) l=leucine (uncharged = 0) e=glutamic acid (charged = -1) e=glutamic acid (charged = -1) q=glutamine (uncharged = 0) Add up all the charges -3, +1 gives a total peptide charge of -2.
What is the charge on the perchlorate anion?
The pH depends on the concentration (how much is dissolved in a given volume of water) Since it is a strong monoprotic acid the pH equals the negative logarithm of its molar concentration. A 1M solution has a pH of 0 a .1M solution has a pH of 1 and so on until a pH of about 7.
Net charge of histidine in pH 1 3 5 11?
pK1 = 2.3, pKr = 6, pK2 = 9.7 (all approximate) at physiological pH, histidine has no net charge. at pH 1, below all pKas and charge is +2 at pH 3, amine group proton pops off, so +1 charge at pH 5, still below 6 and above 2.3 so +1 charge if had pH above 6, for instance... at pH of 8 net charge is zero, or neutral... such that it is neutral at physiological pH (a bit above a pH of 7) at pH 11, exceeds all pKas of amine, acid group, and R group. So net charge of -1 amine deprotonation, carboxylic acid deprotonation, and R group deprotonation happen pH 11 because it exceeds all pKs
Is 1 a strong acid on a pH chart?
Yes, with pH 0 being the strongest acid. Hydrochloric Acid is at pH 1.
What is the structure of serine at pH 1?
Fully protonated. The acid hydrogen would definitely be present, and it's likely the amine group would be protonated as well.
What is the hydrochloric acid pH number?
The pH of hydrochloric acid has a pH of 2.
What is the pH level of hydochloric acid?
Hydrochloric acid is found in the stomach and has a pH of 1 or 2.
What is the pH number for nitric acid?
The pH of nitric acid is around 1.0 - highly acidic.
What liquid has a pH of 2 and What liquid has a pH of 1?
hydrochloric acid and battery acid have a pH of about 1 hope that helped!
What is the pH level of hydrocloric acid?
The pH level of hydrochloric acid is typically around 0 to 1, making it a strong acid.
What is the pH level in hydrochloric acid?
pH 1 Hydrochloric Acid is also in your stomach
