- PDB-2wmg: Crystal structure of the catalytic module of a family 98 glycosid... -
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Basic information
Entry
Database: PDB / ID: 2wmg
Title
Crystal structure of the catalytic module of a family 98 glycoside hydrolase from Streptococcus pneumoniae TIGR4 (Sp4GH98) in complex with the LewisY pentasaccharide blood group antigen.
regulation of complement activation, lectin pathway / regulation of cellular defense response / fucose binding / carbohydrate metabolic process / metal ion binding Similarity search - Function
family 98 glycoside hydrolase / Fucolectin tachylectin-4 pentraxin-1 / eel-Fucolectin Tachylectin-4 Pentaxrin-1 Domain / Glycosyl hydrolase family 98, C-terminal / Glycosyl hydrolase family 98, central domain / Glycosyl hydrolase family 98 / Glycosyl hydrolase family 98 C-terminal domain / arginine biosynthesis bifunctional protein fold / Polysaccharide lyase family 8-like, C-terminal / Chondroitinase Ac; Chain A, domain 3 ...family 98 glycoside hydrolase / Fucolectin tachylectin-4 pentraxin-1 / eel-Fucolectin Tachylectin-4 Pentaxrin-1 Domain / Glycosyl hydrolase family 98, C-terminal / Glycosyl hydrolase family 98, central domain / Glycosyl hydrolase family 98 / Glycosyl hydrolase family 98 C-terminal domain / arginine biosynthesis bifunctional protein fold / Polysaccharide lyase family 8-like, C-terminal / Chondroitinase Ac; Chain A, domain 3 / Polysaccharide lyase family 8-like, C-terminal / Coagulation factors 5/8 type C domain (FA58C) profile. / F5/8 type C domain / Coagulation factor 5/8 C-terminal domain / Galactose-binding-like domain superfamily / Glycosidases / TIM Barrel / Alpha-Beta Barrel / Sandwich / 2-Layer Sandwich / Mainly Beta / Alpha Beta Similarity search - Domain/homology
Lewis Y antigen, beta anomer / Fucolectin-related protein / Fucolectin-related protein Similarity search - Component
Biological species
STREPTOCOCCUS PNEUMONIAE (bacteria)
Method
X-RAY DIFFRACTION / SYNCHROTRON / OTHER / Resolution: 2.3 Å
SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW ... SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 9-STRANDED BARREL THIS IS REPRESENTED BY A 10-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL.
Mass: 66769.758 Da / Num. of mol.: 1 / Fragment: CATALYTIC MODULE, RESIDUES 31-589 / Mutation: YES Source method: isolated from a genetically manipulated source Source: (gene. exp.) STREPTOCOCCUS PNEUMONIAE (bacteria) / Strain: TIGR4 / Plasmid: PET28A / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21 STAR (DE3) / References: UniProt: Q97N96, UniProt: A0A0H2US34*PLUS
#2: Polysaccharide
alpha-L-fucopyranose-(1-2)-beta-D-galactopyranose-(1-4)-[alpha-L-fucopyranose-(1-3)]2-acetamido-2- ...alpha-L-fucopyranose-(1-2)-beta-D-galactopyranose-(1-4)-[alpha-L-fucopyranose-(1-3)]2-acetamido-2-deoxy-beta-D-glucopyranose / Lewis Y antigen / beta anomer
Type: oligosaccharide, Oligosaccharide / Class: Antigen / Mass: 675.630 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: oligosaccharide with branches / References: Lewis Y antigen, beta anomer
Method to determine structure: OTHER Starting model: NONE Resolution: 2.3→30.29 Å / Cor.coef. Fo:Fc: 0.95 / Cor.coef. Fo:Fc free: 0.889 / SU B: 6.299 / SU ML: 0.156 / Cross valid method: THROUGHOUT / ESU R: 0.472 / ESU R Free: 0.249 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
Rfactor
Num. reflection
% reflection
Selection details
Rfree
0.22745
1226
5.1 %
RANDOM
Rwork
0.1564
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obs
0.15998
22735
97.07 %
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Solvent computation
Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK