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PDBsum entry 1isw
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* Residue conservation analysis
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Enzyme class:
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E.C.3.2.1.8
- endo-1,4-beta-xylanase.
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Reaction:
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Endohydrolysis of 1,4-beta-D-xylosidic linkages in xylans.
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DOI no:
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J Mol Biol
316:65-78
(2002)
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PubMed id:
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Crystal structures of the sugar complexes of Streptomyces olivaceoviridis E-86 xylanase: sugar binding structure of the family 13 carbohydrate binding module.
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Z.Fujimoto,
A.Kuno,
S.Kaneko,
H.Kobayashi,
I.Kusakabe,
H.Mizuno.
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ABSTRACT
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The family 10 xylanase from Streptomyces olivaceoviridis E-86 contains a
(beta/alpha)(8)-barrel as a catalytic domain, a family 13 carbohydrate binding
module (CBM) as a xylan binding domain (XBD) and a Gly/Pro-rich linker between
them. The crystal structure of this enzyme showed that XBD has three similar
subdomains, as indicated by the presence of a triple-repeated sequence, forming
a galactose binding lectin fold similar to that found in the ricin toxin
B-chain. Comparison with the structure of ricin/lactose complex suggests three
potential sugar binding sites in XBD. In order to understand how XBD binds to
the xylan chain, we analyzed the sugar-complex structure by the soaking
experiment method using the xylooligosaccharides and other sugars. In the
catalytic cleft, bound sugars were observed in the xylobiose and xylotriose
complex structures. In the XBD, bound sugars were identified in subdomains alpha
and gamma in all of the complexes with xylose, xylobiose, xylotriose, glucose,
galactose and lactose. XBD binds xylose or xylooligosaccharides at the same
sugar binding sites as in the case of the ricin/lactose complex but its binding
manner for xylose and xylooligosaccharides is different from the galactose
binding mode in ricin, even though XBD binds galactose in the same manner as in
the ricin/galactose complex. These different binding modes are utilized
efficiently and differently to bind the long substrate to xylanase and
ricin-type lectin. XBD can bind any xylose in the xylan backbone, whereas
ricin-type lectin recognizes the terminal galactose to sandwich the large sugar
chain, even though the two domains have the same family 13 CBM structure. Family
13 CBM has rather loose and broad sugar specificities and is used by some kinds
of proteins to bind their target sugars. In such enzyme, XBD binds xylan, and
the catalytic domain may assume a flexible position with respect to the
XBD/xylan complex, inasmuch as the linker region is unstructured.
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Selected figure(s)
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Figure 1.
Figure 1. Stereo view of the ribbon model of FXYN/X2
complex. The catalytic domain, linker, and subdomains a, b, g of
XBD are drawn in green, black, blue, yellow and pink,
respectively. Two catalytic residues are displayed in red.
Soaked xylose units and disulfide bonds are indicated by
ball-and-stick drawings. The figure was drawn with the program
Raster3d.[46 and 47]
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Figure 5.
Figure 5. Stereo views of the sugar binding structures in
the XBD with the F[obs] - F[calc] omit electron density maps
contoured at 3s. (a) In the subdomain a in the FXYN/X2 complex,
(b) subdomain g in the FXYN/X3 complex, (c) subdomain g in the
FXYN/Glc complex, (d) subdomain a in the FXYN/Gal complex, (e)
subdomain g in the FXYN/Lac complex, and (f) subdomain a in the
FXYN/Lac complex from a different view point. Hydrogen bonding
interactions between the enzyme and sugars are indicated by
broken lines. Carbon numbers of bound xylose are indicated.
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The above figures are
reprinted
by permission from Elsevier:
J Mol Biol
(2002,
316,
65-78)
copyright 2002.
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Figures were
selected
by the author.
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Literature references that cite this PDB file's key reference
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PubMed id
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Reference
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J.P.Yang,
X.X.Ma,
Y.X.He,
W.F.Li,
Y.Kang,
R.Bao,
Y.Chen,
and
C.Z.Zhou
(2011).
Crystal structure of the 30K protein from the silkworm Bombyx mori reveals a new member of the β-trefoil superfamily.
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J Struct Biol,
175,
97.
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PDB code:
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A.Takahashi,
J.Inokoshi,
M.Tsunoda,
K.Suzuki,
A.Takenaka,
T.Sekiguchi,
S.Omura,
and
H.Tanaka
(2010).
Actinohivin: specific amino acid residues essential for anti-HIV activity.
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J Antibiot (Tokyo),
63,
661-665.
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H.Hemmi,
A.Kuno,
S.Ito,
R.Suzuki,
T.Hasegawa,
and
J.Hirabayashi
(2009).
NMR studies on the interaction of sugars with the C-terminal domain of an R-type lectin from the earthworm Lumbricus terrestris.
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FEBS J,
276,
2095-2105.
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H.Ichinose,
Z.Fujimoto,
M.Honda,
K.Harazono,
Y.Nishimoto,
A.Uzura,
and
S.Kaneko
(2009).
A beta-l-Arabinopyranosidase from Streptomyces avermitilis is a novel member of glycoside hydrolase family 27.
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J Biol Chem,
284,
25097-25106.
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PDB codes:
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L.Maveyraud,
H.Niwa,
V.Guillet,
D.I.Svergun,
P.V.Konarev,
R.A.Palmer,
W.J.Peumans,
P.Rougé,
E.J.Van Damme,
C.D.Reynolds,
and
L.Mourey
(2009).
Structural basis for sugar recognition, including the Tn carcinoma antigen, by the lectin SNA-II from Sambucus nigra.
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Proteins,
75,
89.
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PDB codes:
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N.Li,
P.Shi,
P.Yang,
Y.Wang,
H.Luo,
Y.Bai,
Z.Zhou,
and
B.Yao
(2009).
A xylanase with high pH stability from Streptomyces sp. S27 and its carbohydrate-binding module with/without linker-region-truncated versions.
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Appl Microbiol Biotechnol,
83,
99.
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R.Suzuki,
Z.Fujimoto,
S.Ito,
S.Kawahara,
S.Kaneko,
K.Taira,
T.Hasegawa,
and
A.Kuno
(2009).
Crystallographic snapshots of an entire reaction cycle for a retaining xylanase from Streptomyces olivaceoviridis E-86.
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J Biochem,
146,
61-70.
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PDB codes:
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J.G.Berrin,
and
N.Juge
(2008).
Factors affecting xylanase functionality in the degradation of arabinoxylans.
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Biotechnol Lett,
30,
1139-1150.
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D.K.Poon,
S.G.Withers,
and
L.P.McIntosh
(2007).
Direct demonstration of the flexibility of the glycosylated proline-threonine linker in the Cellulomonas fimi Xylanase Cex through NMR spectroscopic analysis.
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J Biol Chem,
282,
2091-2100.
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H.Ichinose,
A.Kuno,
T.Kotake,
M.Yoshida,
K.Sakka,
J.Hirabayashi,
Y.Tsumuraya,
and
S.Kaneko
(2006).
Characterization of an exo-beta-1,3-galactanase from Clostridium thermocellum.
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Appl Environ Microbiol,
72,
3515-3523.
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Ihsanawati,
T.Kumasaka,
T.Kaneko,
C.Morokuma,
R.Yatsunami,
T.Sato,
S.Nakamura,
and
N.Tanaka
(2005).
Structural basis of the substrate subsite and the highly thermal stability of xylanase 10B from Thermotoga maritima MSB8.
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Proteins,
61,
999.
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PDB codes:
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M.Nishimoto,
M.Kitaoka,
S.Fushinobu,
and
K.Hayashi
(2005).
The role of conserved arginine residue in loop 4 of glycoside hydrolase family 10 xylanases.
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Biosci Biotechnol Biochem,
69,
904-910.
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A.Miyanaga,
T.Koseki,
H.Matsuzawa,
T.Wakagi,
H.Shoun,
and
S.Fushinobu
(2004).
Crystal structure of a family 54 alpha-L-arabinofuranosidase reveals a novel carbohydrate-binding module that can bind arabinose.
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J Biol Chem,
279,
44907-44914.
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PDB codes:
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J.L.Henshaw,
D.N.Bolam,
V.M.Pires,
M.Czjzek,
B.Henrissat,
L.M.Ferreira,
C.M.Fontes,
and
H.J.Gilbert
(2004).
The family 6 carbohydrate binding module CmCBM6-2 contains two ligand-binding sites with distinct specificities.
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J Biol Chem,
279,
21552-21559.
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M.Nishimoto,
S.Fushinobu,
A.Miyanaga,
T.Wakagi,
H.Shoun,
K.Sakka,
K.Ohmiya,
S.Nirasawa,
M.Kitaoka,
and
K.Hayashi
(2004).
Crystallization and preliminary X-ray analysis of xylanase B from Clostridium stercorarium.
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Acta Crystallogr D Biol Crystallogr,
60,
342-343.
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M.S.Sujatha,
and
P.V.Balaji
(2004).
Identification of common structural features of binding sites in galactose-specific proteins.
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Proteins,
55,
44-65.
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R.Koike,
K.Kinoshita,
and
A.Kidera
(2004).
Probabilistic description of protein alignments for sequences and structures.
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Proteins,
56,
157-166.
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R.Suzuki,
Z.Fujimoto,
A.Kuno,
J.Hirabayashi,
K.Kasai,
and
T.Hasegawa
(2004).
Crystallization and preliminary X-ray crystallographic studies of the C-terminal domain of galactose-binding lectin EW29 from the earthworm Lumbricus terrestris.
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Acta Crystallogr D Biol Crystallogr,
60,
1895-1896.
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S.Kaneko,
H.Ichinose,
Z.Fujimoto,
A.Kuno,
K.Yura,
M.Go,
H.Mizuno,
I.Kusakabe,
and
H.Kobayashi
(2004).
Structure and function of a family 10 beta-xylanase chimera of Streptomyces olivaceoviridis E-86 FXYN and Cellulomonas fimi Cex.
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J Biol Chem,
279,
26619-26626.
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PDB code:
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T.Uchida,
T.Yamasaki,
S.Eto,
H.Sugawara,
G.Kurisu,
A.Nakagawa,
M.Kusunoki,
and
T.Hatakeyama
(2004).
Crystal structure of the hemolytic lectin CEL-III isolated from the marine invertebrate Cucumaria echinata: implications of domain structure for its membrane pore-formation mechanism.
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J Biol Chem,
279,
37133-37141.
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PDB code:
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Z.Fujimoto,
S.Kaneko,
A.Kuno,
H.Kobayashi,
I.Kusakabe,
and
H.Mizuno
(2004).
Crystal structures of decorated xylooligosaccharides bound to a family 10 xylanase from Streptomyces olivaceoviridis E-86.
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J Biol Chem,
279,
9606-9614.
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PDB codes:
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D.Shallom,
and
Y.Shoham
(2003).
Microbial hemicellulases.
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Curr Opin Microbiol,
6,
219-228.
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M.Tenno,
A.Saeki,
F.J.Kézdy,
A.P.Elhammer,
and
A.Kurosaka
(2002).
The lectin domain of UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase 1 is involved in O-glycosylation of a polypeptide with multiple acceptor sites.
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J Biol Chem,
277,
47088-47096.
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The most recent references are shown first.
Citation data come partly from CiteXplore and partly
from an automated harvesting procedure. Note that this is likely to be
only a partial list as not all journals are covered by
either method. However, we are continually building up the citation data
so more and more references will be included with time.
Where a reference describes a PDB structure, the PDB
code is
shown on the right.
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