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pseB

Gene
pseB
Protein
UDP-N-acetylglucosamine 4,6-dehydratase (inverting)
Organism
Campylobacter jejuni subsp. jejuni serotype O:2 (strain ATCC 700819 / NCTC 11168)
Length
334 amino acids
Function
Catalyzes the first step in the biosynthesis of pseudaminic acid, a sialic-acid-like sugar that is used to modify flagellin. Has both C6 dehydratase and C5 epimerase activities that result in the production of both UDP-2-acetamido-2,6-dideoxy-beta-L-arabino-4-hexulose and UDP-2-acetamido-2,6-dideoxy-alpha-D-xylo-4-hexulose.
Similarity
Belongs to the polysaccharide synthase family.
Mass
37.372 kDa
Sequence
MFNKKNILITGGTGSFGKTYTKVLLENYKPNKIIIYSRDELKQFEMASVFNAPCMRYFIGDVRDKERLSAAMRDVDFVIHAAAMKHVPIAEYNPMECIKTNIHGAQNVIDACFENGVKKCIALSTDKACNPVNLYGATKLASDKLFVAANNIAGNKQTRFGVTRYGNVVGSRGSVVPFFKKLISEGAKELPITDTRMTRFWISLEDGVKFVLSNFERMHGGEIFIPKIPSMKITDLAHALAPNLSHKIIGIRAGEKLHEIMISSDDSHLTYEFENYYAISPSIKFVDKDNDFSINALGEKGQKVKDGFSYSSDNNPLWASEKELLEIINHTEGF
Protein
UDP-N-acetylglucosamine 4,6-dehydratase (inverting): pseB

Gene
pseB
Protein
UDP-N-acetylglucosamine 4,6-dehydratase (inverting)
Organism
Campylobacter jejuni subsp. jejuni serotype O:23/36 (strain 81-176)
Length
334 amino acids
Function
Catalyzes the first step in the biosynthesis of pseudaminic acid, a sialic-acid-like sugar that is used to modify flagellin. Has both C6 dehydratase and C5 epimerase activities that result in the production of both UDP-2-acetamido-2,6-dideoxy-beta-L-arabino-4-hexulose and UDP-2-acetamido-2,6-dideoxy-alpha-D-xylo-4-hexulose.
Similarity
Belongs to the polysaccharide synthase family.
Mass
37.36 kDa
Sequence
MFNGKNILITGGTGSFGKTYTKVLLENYKPNKIIIYSRDELKQFEMSSIFNSNCMRYFIGDVRDKERLSVAMRDVDFVIHAAAMKHVPVAEYNPMECIKTNIHGAQNVIDACFENGVKKCIALSTDKACNPVNLYGATKLASDKLFVAANNIAGNKQTRFSVTRYGNVVGSRGSVVPFFKKLIAQGSKELPITDTRMTRFWISLEDGVKFVLSNFERMHGGEIFIPKIPSMKITNLAHALAPNLSHKIIGIRAGEKLHEIMISSDDSHLTYEFENYYAISPSIKLVDQESDFSINALGEKGQKVKDGFSYSSDNNPQWASEKELLDIINHTEGF
Protein
UDP-N-acetylglucosamine 4,6-dehydratase (inverting): pseB

Gene
pseB
Protein
UDP-N-acetylglucosamine 4,6-dehydratase (inverting)
Organism
Helicobacter pylori (strain ATCC 700392 / 26695)
Length
333 amino acids
Function
Catalyzes the first step in the biosynthesis of pseudaminic acid, a sialic-acid-like sugar that is used to modify flagellin. Has both C6 dehydratase and C5 epimerase activities that result in the production of both UDP-2-acetamido-2,6-dideoxy-beta-L-arabino-4-hexulose and UDP-2-acetamido-2,6-dideoxy-alpha-D-xylo-4-hexulose.
Similarity
Belongs to the polysaccharide synthase family.
Mass
37.354 kDa
Sequence
MPNHQNMLDNQTILITGGTGSFGKCFVRKVLDTTNAKKIIVYSRDELKQSEMAMEFNDPRMRFFIGDVRDLERLNYALEGVDICIHAAALKHVPIAEYNPLECIKTNIMGASNVINACLKNAISQVIALSTDKAANPINLYGATKLCSDKLFVSANNFKGSSQTQFSVVRYGNVVGSRGSVVPFFKKLVQNKASEIPITDIRMTRFWITLDEGVSFVLKSLKRMHGGEIFVPKIPSMKMTDLAKALAPNTPTKIIGIRPGEKLHEVMIPKDESHLALEFEDFFIIQPTISFQTPKDYTLTKLHEKGQKVAPDFEYSSHNNNQWLEPDDLLKLL
Protein
UDP-N-acetylglucosamine 4,6-dehydratase (inverting): pseB