RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy14879
(138 letters)
>gnl|CDD|119351 cd02872, GH18_chitolectin_chitotriosidase, This conserved domain
family includes a large number of catalytically inactive
chitinase-like lectins (chitolectins) including YKL-39,
YKL-40 (HCGP39), YM1, oviductin, and AMCase (acidic
mammalian chitinase), as well as catalytically active
chitotriosidases. The conserved domain is an
eight-stranded alpha/beta barrel fold belonging to the
family 18 glycosyl hydrolases. The fold has a
pronounced active-site cleft at the C-terminal end of
the beta-barrel. The chitolectins lack a key active
site glutamate (the proton donor required for hydrolytic
activity) but retain highly conserved residues involved
in oligosaccharide binding. Chitotriosidase is a
chitinolytic enzyme expressed in maturing macrophages,
which suggests that it plays a part in antimicrobial
defense. Chitotriosidase hydrolyzes chitotriose, as
well as colloidal chitin to yield chitobiose and is
therefore considered an exochitinase. Chitotriosidase
occurs in two major forms, the large form being
converted to the small form by either RNA or
post-translational processing. Although the small form,
containing the chitinase domain alone, is sufficient for
the chitinolytic activity, the additional C-terminal
chitin-binding domain of the large form plays a role in
processing colloidal chitin. The chitotriosidase gene is
nonessential in humans, as about 35% of the population
are heterozygous and 6% homozygous for an inactivated
form of the gene. HCGP39 is a 39-kDa human cartilage
glycoprotein thought to play a role in connective tissue
remodeling and defense against pathogens.
Length = 362
Score = 80.7 bits (200), Expect = 5e-19
Identities = 23/41 (56%), Positives = 31/41 (75%)
Query: 1 MDWLKEDGYGGIMIWSVDMDDFRGQCGSGKYPLISTMNTEL 41
+ +LK G GG M+WS+D+DDFRG CG GKYPL++ +N L
Sbjct: 322 VQYLKSKGLGGAMVWSIDLDDFRGTCGQGKYPLLNAINRAL 362
>gnl|CDD|216601 pfam01607, CBM_14, Chitin binding Peritrophin-A domain. This
domain is called the Peritrophin-A domain and is found
in chitin binding proteins particularly peritrophic
matrix proteins of insects and animal chitinases. Copies
of the domain are also found in some baculoviruses.
Relevant references that describe proteins with this
domain include. It is an extracellular domain that
contains six conserved cysteines that probably form
three disulphide bridges. Chitin binding has been
demonstrated for a protein containing only two of these
domains.
Length = 53
Score = 58.2 bits (141), Expect = 1e-12
Identities = 19/46 (41%), Positives = 26/46 (56%)
Query: 82 YHPDKADCTHYYMCEGERKHHMPCPSNLVFNPKENVCDWPENVETC 127
+PD DC+ YY C + CP+ LVF+P CD+P+NV C
Sbjct: 8 LYPDPGDCSKYYQCSNGKAVVFTCPAGLVFDPALGTCDYPDNVVDC 53
>gnl|CDD|214696 smart00494, ChtBD2, Chitin-binding domain type 2.
Length = 49
Score = 51.7 bits (124), Expect = 4e-10
Identities = 18/40 (45%), Positives = 21/40 (52%)
Query: 82 YHPDKADCTHYYMCEGERKHHMPCPSNLVFNPKENVCDWP 121
+P DC+ YY C R CP+ LVFNP CDWP
Sbjct: 10 LYPHPTDCSKYYQCSNGRPIVGSCPAGLVFNPATQTCDWP 49
>gnl|CDD|119352 cd02873, GH18_IDGF, The IDGF's (imaginal disc growth factors) are a
family of growth factors identified in insects that
include at least five members, some of which are encoded
by genes in a tight cluster. The IDGF's have an
eight-stranded alpha/beta barrel fold and are related to
the glycosyl hydrolase family 18 (GH18) chitinases, but
they have an amino acid substitution known to abolish
chitinase catalytic activity. IDGFs may have evolved
from chitinases to gain new functions as growth factors,
interacting with cell surface glycoproteins involved in
growth-promoting processes.
Length = 413
Score = 41.1 bits (97), Expect = 5e-05
Identities = 13/30 (43%), Positives = 21/30 (70%)
Query: 5 KEDGYGGIMIWSVDMDDFRGQCGSGKYPLI 34
K G GG+ ++ + +DDFRGQC K+P++
Sbjct: 377 KAKGLGGVALFDLSLDDFRGQCTGDKFPIL 406
>gnl|CDD|216071 pfam00704, Glyco_hydro_18, Glycosyl hydrolases family 18.
Length = 325
Score = 39.4 bits (92), Expect = 2e-04
Identities = 10/20 (50%), Positives = 15/20 (75%)
Query: 1 MDWLKEDGYGGIMIWSVDMD 20
++K+ G GG+MIWS+D D
Sbjct: 306 AKYVKDKGLGGVMIWSLDQD 325
>gnl|CDD|214753 smart00636, Glyco_18, Glyco_18 domain.
Length = 334
Score = 38.4 bits (90), Expect = 4e-04
Identities = 10/20 (50%), Positives = 15/20 (75%)
Query: 1 MDWLKEDGYGGIMIWSVDMD 20
D++K+ G GG+MIW +D D
Sbjct: 315 ADYVKDKGLGGVMIWELDAD 334
>gnl|CDD|119349 cd00598, GH18_chitinase-like, The GH18 (glycosyl hydrolase, family
18) type II chitinases hydrolyze chitin, an abundant
polymer of beta-1,4-linked N-acetylglucosamine (GlcNAc)
which is a major component of the cell wall of fungi and
the exoskeleton of arthropods. Chitinases have been
identified in viruses, bacteria, fungi, protozoan
parasites, insects, and plants. The structure of the
GH18 domain is an eight-stranded beta/alpha barrel with
a pronounced active-site cleft at the C-terminal end of
the beta-barrel. The GH18 family includes
chitotriosidase, chitobiase, hevamine, zymocin-alpha,
narbonin, SI-CLP (stabilin-1 interacting chitinase-like
protein), IDGF (imaginal disc growth factor), CFLE
(cortical fragment-lytic enzyme) spore hydrolase, the
type III and type V plant chitinases, the
endo-beta-N-acetylglucosaminidases, and the
chitolectins. The GH85 (glycosyl hydrolase, family 85)
ENGases (endo-beta-N-acetylglucosaminidases) are closely
related to the GH18 chitinases and are included in this
alignment model.
Length = 210
Score = 33.9 bits (78), Expect = 0.012
Identities = 9/20 (45%), Positives = 13/20 (65%)
Query: 1 MDWLKEDGYGGIMIWSVDMD 20
+ K+ G GG+MIW +D D
Sbjct: 191 AKYAKQKGLGGVMIWELDQD 210
>gnl|CDD|119360 cd06543, GH18_PF-ChiA-like, PF-ChiA is an uncharacterized chitinase
found in the hyperthermophilic archaeon Pyrococcus
furiosus with a glycosyl hydrolase family 18 (GH18)
catalytic domain as well as a cellulose-binding domain.
Members of this domain family are found not only in
archaea but also in eukaryotes and prokaryotes. PF-ChiA
exhibits hydrolytic activity toward both colloidal and
crystalline (beta/alpha) chitins at high temperature.
Length = 294
Score = 31.1 bits (71), Expect = 0.14
Identities = 14/44 (31%), Positives = 23/44 (52%), Gaps = 2/44 (4%)
Query: 1 MDWLKEDGYGGIMIWSVDMDDFRGQCGSGKYPLISTMNTELEDY 44
+D+ KE G G + +WS++ D R G G P + + +DY
Sbjct: 246 VDFAKEKGLGRLSMWSLNRD--RPCPGGGASPTATCSGVQQQDY 287
>gnl|CDD|119365 cd06548, GH18_chitinase, The GH18 (glycosyl hydrolases, family 18)
type II chitinases hydrolyze chitin, an abundant polymer
of N-acetylglucosamine and have been identified in
bacteria, fungi, insects, plants, viruses, and protozoan
parasites. The structure of this domain is an
eight-stranded alpha/beta barrel with a pronounced
active-site cleft at the C-terminal end of the
beta-barrel.
Length = 322
Score = 30.7 bits (70), Expect = 0.20
Identities = 8/20 (40%), Positives = 13/20 (65%)
Query: 1 MDWLKEDGYGGIMIWSVDMD 20
D++K+ G GG+M W + D
Sbjct: 303 ADYVKDKGLGGVMFWELSGD 322
>gnl|CDD|218589 pfam05431, Toxin_10, Insecticidal Crystal Toxin, P42. Family of
Bacillus insecticidal crystal toxins. Strains of
Bacillus that have this insecticidal activity use a
binary toxin comprised of two proteins, P51 and P42
(this family). Members of this family are highly
conserved between strains of different serotypes and
phage groups.
Length = 199
Score = 27.8 bits (62), Expect = 1.8
Identities = 13/50 (26%), Positives = 16/50 (32%), Gaps = 7/50 (14%)
Query: 4 LKEDGYGGIMIWSVDMDDFRGQCGSGKYPLISTMNTELEDYTVALEYDGP 53
LK GG + Q ST + L YT + EYD
Sbjct: 112 LKFVVGGG-------TTGIKTQITEELKTEYSTTSKILGKYTESSEYDNT 154
Database: CDD.v3.10
Posted date: Mar 20, 2013 7:55 AM
Number of letters in database: 10,937,602
Number of sequences in database: 44,354
Lambda K H
0.315 0.135 0.452
Gapped
Lambda K H
0.267 0.0738 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 7,021,261
Number of extensions: 584539
Number of successful extensions: 290
Number of sequences better than 10.0: 1
Number of HSP's gapped: 290
Number of HSP's successfully gapped: 12
Length of query: 138
Length of database: 10,937,602
Length adjustment: 87
Effective length of query: 51
Effective length of database: 7,078,804
Effective search space: 361019004
Effective search space used: 361019004
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.3 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 42 (22.0 bits)
S2: 54 (24.6 bits)