The peptide aspartyl-glutamyl-leucyl-threonyl-alanine shown in the sketch drawing window, has several ionizable groups. Adjust the charges to show the molecule as it would exist at pH 5.00.

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ISBN:9781319114671
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The peptide aspartyl-glutamyl-leucyl-threonyl-alanine shown in the sketch drawing window, has several ionizable groups. Adjust the charges to show the molecule as it would exist at pH 5.00. (I'm lost, I appreciate any help with explanation. ?)
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[References]
The peptide aspartyl-glutamyl-leucyl-threonyl-alanine, shown in the sketch drawing window, has several ionizable groups. Adjust the charges to show the molecule as it would exist at pH
5.00. Use the pK, values in the table below.
pK, Values for Ionizable Groups of Amino Acids.
Amino Acid
pK, of a-COOH pK, of a-NH,* pK, of Side Chain Isoelectric Point (pl)
9.87
6.11
Alanine
2.35
12.48
10.76
Arginine
2.01
9.04
5.41
Asparagine
2.02
8.80
9.82
3.86
2.98
Aspartic acid
2.10
10.25
8.00
5.02
Cysteine
2.05
9.47
4.07
3.08
Glutamic acid 2.10
5.65
Glutamine
2.17
9.13
6.06
Glycine
2.35
9.78
9.18
6.10
7.64
Histidine
7.11
6.04
Isoleucine
2.32
9.76
6.04
Leucine
2.33
9.74
10.53
9.74
Lysine
2.18
8.95
5.74
Methionine
2.28
9.21
5.91
9.24
Phenylalanine 2.58
6.30
Proline
2.00
10.60
5.68
Serine
2.21
9.15
Previous
Next
5.60
Threonine
2.09
9.10
5.88
Trvntonhan
2.38
9.39
Transcribed Image Text:now.com/ilrn/takeAssignment/takel [References] The peptide aspartyl-glutamyl-leucyl-threonyl-alanine, shown in the sketch drawing window, has several ionizable groups. Adjust the charges to show the molecule as it would exist at pH 5.00. Use the pK, values in the table below. pK, Values for Ionizable Groups of Amino Acids. Amino Acid pK, of a-COOH pK, of a-NH,* pK, of Side Chain Isoelectric Point (pl) 9.87 6.11 Alanine 2.35 12.48 10.76 Arginine 2.01 9.04 5.41 Asparagine 2.02 8.80 9.82 3.86 2.98 Aspartic acid 2.10 10.25 8.00 5.02 Cysteine 2.05 9.47 4.07 3.08 Glutamic acid 2.10 5.65 Glutamine 2.17 9.13 6.06 Glycine 2.35 9.78 9.18 6.10 7.64 Histidine 7.11 6.04 Isoleucine 2.32 9.76 6.04 Leucine 2.33 9.74 10.53 9.74 Lysine 2.18 8.95 5.74 Methionine 2.28 9.21 5.91 9.24 Phenylalanine 2.58 6.30 Proline 2.00 10.60 5.68 Serine 2.21 9.15 Previous Next 5.60 Threonine 2.09 9.10 5.88 Trvntonhan 2.38 9.39
• Use the wedge/hash bond tools to indicate stereochemistry where it exists.
• If a group is achiral, do not use wedged or hashed bonds on it.
• Should you want to restart the exercise, the drop-down memu labeled == starting points = can be used to redraw the starting molecule on the sketcher.
C
aste
HO O
HO CH;
но,
"OH
NH,
CH: Ö
CH,
ČH
ChemDoodle
== starting points == v
Transcribed Image Text:• Use the wedge/hash bond tools to indicate stereochemistry where it exists. • If a group is achiral, do not use wedged or hashed bonds on it. • Should you want to restart the exercise, the drop-down memu labeled == starting points = can be used to redraw the starting molecule on the sketcher. C aste HO O HO CH; но, "OH NH, CH: Ö CH, ČH ChemDoodle == starting points == v
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