Non-viral sialidases. Sialidases or neuraminidases function to bind and hydrolyze terminal sialic acid residues from various glycoconjugates, they play vital roles in pathogenesis, bacterial nutrition and cellular interactions. They have a six-bladed, beta-propeller fold with the non-viral sialidases containing 2-5 Asp-box motifs (most commonly Ser/Thr-X-Asp-[X]-Gly-X-Thr- Trp/Phe). This CD includes eubacterial and eukaryotic sialidases.

Neuraminidase (sialidase) [Carbohydrate transport and metabolism, Cell wall/membrane/envelope biogenesis].

NPCBM/NEW2 domain. This novel putative carbohydrate binding module (NPCBM) domain is found at the N-terminus of glycosyl hydrolase family 98 proteins. This domain has also been called the NEW2 domain (Naumoff DG. Phylogenetic analysis of alpha-galactosidases of the GH27 family. Molecular Biology (Engl Transl). (2004)38:388-399.)

GDSL-like Lipase/Acylhydrolase family. This family of presumed lipases and related enzymes are similar to pfam00657.

SGNH_hydrolase, or GDSL_hydrolase, is a diverse family of lipases and esterases. The tertiary fold of the enzyme is substantially different from that of the alpha/beta hydrolase family and unique among all known hydrolases; its active site closely resembles the typical Ser-His-Asp(Glu) triad from other serine hydrolases, but may lack the carboxlic acid.

AtomicResolution Structure of the bacterial sialidase NanI from Clostridium perfringens in complex with alpha-Sialic Acid (Neu5Ac). [Clostridium perfringens]

TheStructure Of Clostridium Perfringens Nani Sialidase And Its Catalytic Intermediates [Clostridium perfringens],2VK6_A The Structure Of Clostridium Perfringens Nani Sialidase And Its Catalytic Intermediates [Clostridium perfringens],2VK7_A The Structure Of Clostridium Perfringens Nani Sialidase And Its Catalytic Intermediates [Clostridium perfringens],2VK7_B The Structure Of Clostridium Perfringens Nani Sialidase And Its Catalytic Intermediates [Clostridium perfringens]

Crystalstructure of the catalytic domain of Clostridium perfringens neuraminidase (NanI) in complex with a CHES [Clostridium perfringens ATCC 13124],5TSP_B Crystal structure of the catalytic domain of Clostridium perfringens neuraminidase (NanI) in complex with a CHES [Clostridium perfringens ATCC 13124]

Crystalstructure of Streptococcus pneumoniae D39 neuraminidase A precursor (NanA) in complex with NANA [Streptococcus pneumoniae R6],3H72_B Crystal structure of Streptococcus pneumoniae D39 neuraminidase A precursor (NanA) in complex with NANA [Streptococcus pneumoniae R6],3H73_A Crystal structure of Streptococcus pneumoniae D39 neuraminidase A precursor (NanA) in complex with DANA [Streptococcus pneumoniae R6],3H73_B Crystal structure of Streptococcus pneumoniae D39 neuraminidase A precursor (NanA) in complex with DANA [Streptococcus pneumoniae R6]

Structureof Streptococcus pneumonia NanA bound with inhibitor 9N3Neu5Ac2en [Streptococcus pneumoniae],5KKY_B Structure of Streptococcus pneumonia NanA bound with inhibitor 9N3Neu5Ac2en [Streptococcus pneumoniae]

Sialidase OS=Clostridium septicum OX=1504 PE=3 SV=1

Sialidase A OS=Streptococcus pneumoniae OX=1313 GN=nanA PE=1 SV=1

Sialidase A OS=Streptococcus pneumoniae (strain ATCC BAA-255 / R6) OX=171101 GN=nanA PE=1 SV=1

Anhydrosialidase OS=Macrobdella decora OX=6405 PE=1 SV=1

Sialidase B OS=Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4) OX=170187 GN=nanB PE=1 SV=2