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Tryptophan Biosynthesis Chart Coffee Mug
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Tryptophan Biosynthesis Chart Coffee Mug
Tryptophan (IUPAC-IUBMB abbreviation: Trp or W; IUPAC abbreviation: L-Trp or D-Trp; sold for medical use as Tryptan) is one of the 22 standard amino acids and an essential amino acid in the human diet. It is encoded in the standard genetic code as the codon UGG. Only the L-stereoisomer of tryptophan is used in structural or enzyme proteins, but the D-stereoisomer is occasionally found in naturally produced peptides (for example, the marine venom peptide contryphan). The distinguishing structural characteristic of tryptophan is that it contains an indole functional group. It is an essential amino acid, as demonstrated by its growth effects on rats.
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3 out of 5 stars ratingBy Lisa S.18 October 2026 • Verified Purchase
Classic Mug, 325 ml
I have ordered from zazzle before and it was perfect. This time the mug has arrived in great time but the mug has rubbed on the box and has affected the image, I was hoping to get in touch with the creator but can’t seem to find a way of contacting them. We would love another sent out maybe wrapped in bubble wrap to protect the image. Would love to hear back from the creator. Kind regards, Lisa.
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5 out of 5 stars ratingBy Anonymous14 December 2025 • Verified Purchase
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Easy to order online. I had to get in touch regarding the customizing- response was prompt and helpful. Mug arrived perfectly customized, and well within the expected delivery time frame.
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5 out of 5 stars ratingBy Shaun20 June 2021 • Verified Purchase
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Zazzle Reviewer Program
Very happy with the printing and overall quality of the personalized welcome pack for our employees. Great quality and placement, very happy with how it turn out!
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Product ID: 168786424889663894
Posted on 10/04/2013, 5:39 pm
Rating: G
