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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
active site structure
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
5-step reaction mechanism, catalytic residues are Arg349, His399, Tyr40, residues responsible for substrate binding and translocation of the remaining substrate are Arg243and Asn580, enzyme and acitive site strucure
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
active site structure and substrate binding of wild-type and mutant enzymes with chondroitin, mode of action
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
Streptomyces hyalurolytics
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
Streptomyces hyalurolyticus
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose, catalytic mechanism
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose, substrate binding site
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
also acts on chondroitin, the product is more systematically known as 3-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-2-acetamido-2-deoxy-D-glucose, substrate binding site
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
Asn349, His399, and Tyr408 are involved in catalysis, flexible, allosteric behavior of the enzyme, mechanism, active site structure and substrate binding and interactions, overview
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
catalytic mechanism, substrate binding, structure modeling, residues Tyr408, Asn349, and His399 are involved in catalysis and important
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
catalytic mechanism, the flexibility of the enzyme structure is important, the beta-domain is involved in the progressive catalytic process, enzyme substrate interactions
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
enzyme-product interaction from crystal structure, catalytic mechanism, interaction with substrate binding site, Tyr408, Asn349, and His399 are involved
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
His479 is critical for activity, active site structure, mechanism
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
lyase mechanism, elimination process
Streptomyces hyalurolyticus
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
processive reaction mode, catalytic mechanism, catalytic residues are Asn349, His399, and Tyr408, residues responsible for product release are Glu388, Asp398, and Thr400, the socalled negative patch, residues responsible for correct substrate positioning are Trp291, Trp292, and Phe343, the socalled hydrophobic patch, substrate binding structure of wild-type and mutant enzymes
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
rapid elimination mechanism
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
substrate binding, structure and mechanims, and reaction mechanism, catalytic residues are His479, Tyr488, and Asn429, modeling of binding of a tetrasaccharide in the active site cleft
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
active site structure and hydrophobic patch, molecular mechanism, enzyme flexibility and structural requirements
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
active site structure and hydrophobic patch, molecular mechanism, enzyme flexibility and structural requirements
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
binding of negatively charged hydrophobic substrates is facilitated by the predominantly positive and hydrophobic cleft located at distorted (alpha/alpha)5-6 barrel, mechanism of hyaluronan degradation, active site residues are Asn349, His399, and Tyr408, overview
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
binding of negatively charged hydrophobic substrates is facilitated by the predominantly positive and hydrophobic cleft located at distorted (alpha/alpha)5-6 barrel, mechanism of hyaluronan degradation, overview
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
catalytic reaction mechanism and structural requirements, catalytic residues are Asn349, His399, and Tyr408
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
catalytic reaction mechanism and structural requirements, catalytic residues are Asn429, His479, and Tyr488, a required hydrophobic patch is composed of residues Glu468, Asp478, and Thr480
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
catalytic residues are Asn349, His399, and Tyr408
Q6H8W8, Q6H8W9, Q6H8X0, Q6H8X1, Q6H8X2, Q6H8X4, Q6H8X5, Q6H8X6, Q6H8X7, Q6H8X8, Q6H8Y0, Q6H8Y1, Q6H8Y2, Q6H8Y3, Q6H8Y4, Q8VLQ7, Q8VLQ8
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
catalytic residues are Asn349, His399, and Tyr408
[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
mechanism of hyaluronan degradation, random endolytic action pattern, overview
Streptomyces hyalurolyticus
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
along with the substrate binding, the phenylhydroxyl hydrogen atom of Tyr408 will transfer to nearby His399 via a near barrierless transition state, which results in a negatively charged Tyr408 and positively charged His399. The Tyr408, rather than the previously proposed His399, acts as the general base for the subsequent beta-elimination reaction. The His399 has the function of neutralizing the C5-carboxyl group, reaction mechanism, overview
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[hyaluronate]n = (4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine-[hyaluronate]n-m-1 + 2 3-(4-deoxy-beta-D-gluc-4-enuronosyl)-N-acetyl-D-glucosamine + hyaluronate
binding of the substrate molecule can lead to the ionization of Y408 and protonation of H399, Y408 serves as the general base in the proton abstraction, while general acid is the next proton donation step. The reaction can be classified into syn elimination reaction mechanism, reaction mechanism analysis, detailed overview
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