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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
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoPositive
pH above amino acid pI, zwitterion will carry net negative (-) charge. at pH below pI, zwitterion will carry net positive (+) charge. depending on the amino acid, some have more than one acidic or basic functional group. such functional groups can make the amino acid vary in net charge from 2- to 2+ if not more.
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Does albumin and casein contain tyrosine?
No, albumin and casein do not contain tyrosine. Tyrosine is an amino acid.
Is tyrosine an alcohol?
No. Tyrosine (Tyr, or Y) is an amino acid.
How much stronger is pH 9 than pH 4?
pH 9 - pH 4 = pH 5 It is stronger by 5 pH.
What charge do acids have?
Acids have nether a positive or negative charge, but instead have a pH value.
What is the chemical formula of Phenylalanine?
The chemical formula of phenylalanine (this is the correct spelling) is C6H5CH2CH(NH2)COOH.
What charge does pH 4 have?
Plus charge, ie, it has H3O^+ ions (hydronium ions)
What is the charge of phosphate?
Depends on the pH. At cell pH, phosphate has 3 negative charges. In acidic conditions, it can have zero. At a very high pH, it can have 4.
Does albumin and casein contain tyrosine?
No, albumin and casein do not contain tyrosine. Tyrosine is an amino acid.
The pI of a lysozyme is 11. What is the pH range in which the overall charge of the lysozyme is positive?
At pH values less than the pI point the net charge is positive. If at pH above the pI poiint, the charge will be negative.
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.
Is Tyrosine and L Tyrosine the same thing?
Yes.
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
How many amino acids are in tyrosine?
Tyrosine is an amino acid.
Is tyrosine an alcohol?
No. Tyrosine (Tyr, or Y) is an amino acid.
How much stronger is pH 9 than pH 4?
pH 9 - pH 4 = pH 5 It is stronger by 5 pH.
What are the effects of tyrosine?
Tyrosine is an amino acid that boosts photosynthesis in plants.
What would cause tyrosine crystals to be found in urine?
Tyrosine crystals
