RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy5903
(122 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 = 102 bits (256), Expect = 3e-27
Identities = 31/56 (55%), Positives = 43/56 (76%)
Query: 24 VVCYYTNWSVYRPGTAKFTPQNINPYLCTHLIYAFGGLDKENGLRPFDKYQDIEQG 79
VVCY+TNW+ YRPG KF P+NI+P+LCTH+IYAF GL+ + + D++ DI+ G
Sbjct: 1 VVCYFTNWAQYRPGNGKFVPENIDPFLCTHIIYAFAGLNPDGNIIILDEWNDIDLG 56
>gnl|CDD|214753 smart00636, Glyco_18, Glyco_18 domain.
Length = 334
Score = 68.5 bits (168), Expect = 7e-15
Identities = 21/60 (35%), Positives = 29/60 (48%), Gaps = 3/60 (5%)
Query: 23 RVVCYYTNWSVYRPGTAKFTPQNINPYLCTHLIYAFGGLDKENGLRPFDKYQDIEQGKTF 82
RVV Y+TNW VY F +I TH+IYAF +D + + D++ DI
Sbjct: 1 RVVGYFTNWGVYGR---NFPVDDIPASKLTHIIYAFANIDPDGTVTIGDEWADIGNFGQL 57
>gnl|CDD|216071 pfam00704, Glyco_hydro_18, Glycosyl hydrolases family 18.
Length = 325
Score = 62.1 bits (151), Expect = 2e-12
Identities = 20/59 (33%), Positives = 25/59 (42%), Gaps = 4/59 (6%)
Query: 22 KRVVCYYTNWSVYRPGTAKFTPQNINPYLCTHLIYAFGGLDKENGLR-PFDKYQDIEQG 79
R+V YYT W Y G F +I TH+IYAF +D D D +G
Sbjct: 1 GRIVGYYTQWGNYGEG---FPLDDIPTDKLTHIIYAFANIDGNGTFGNNADTEDDGLKG 56
>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 = 50.4 bits (121), Expect = 2e-08
Identities = 19/60 (31%), Positives = 37/60 (61%), Gaps = 3/60 (5%)
Query: 23 RVVCYYTNWSVYRPGTAKFTPQNINPYL--CTHLIYAFGGLDKEN-GLRPFDKYQDIEQG 79
++VCYY + S R G AK + +++ P L CTHL+Y + G+D + ++ ++ D+++
Sbjct: 1 KLVCYYDSKSYLREGLAKMSLEDLEPALQFCTHLVYGYAGIDADTYKIKSLNEDLDLDKS 60
>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 = 49.6 bits (119), Expect = 4e-08
Identities = 20/74 (27%), Positives = 30/74 (40%), Gaps = 4/74 (5%)
Query: 24 VVCYYTNWSVYRPGTAKFTPQNINPYLCTHLIYAFGGLDKENGLRPFDKYQDIE--QGKT 81
VV Y+TNW +Y F +I TH+ YAF +D + G+ D E Q
Sbjct: 1 VVGYFTNWGIYGRNY--FVTDDIPADKLTHINYAFADIDGDGGVVTSDDEAADEAAQSVD 58
Query: 82 FPPLSSCANVQGCL 95
+ ++G
Sbjct: 59 GGADTDDQPLKGNF 72
>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 = 44.3 bits (105), Expect = 2e-06
Identities = 19/59 (32%), Positives = 25/59 (42%), Gaps = 4/59 (6%)
Query: 24 VVCYYTNWSVYRPGTAKFTPQNINPYLCTHLIYAFGGLDKENGLRPFDKYQDIEQGKTF 82
V+CYY WS R P +I LCTH+IYAF + + L F +
Sbjct: 1 VICYYDGWSSGRG----PDPTDIPLSLCTHIIYAFAEISSDGSLNLFGDKSEEPLKGAL 55
>gnl|CDD|225862 COG3325, ChiA, Chitinase [Carbohydrate transport and metabolism].
Length = 441
Score = 43.6 bits (103), Expect = 6e-06
Identities = 15/36 (41%), Positives = 20/36 (55%), Gaps = 2/36 (5%)
Query: 23 RVVCYYTNWSVYRPGTAKFTPQNINPYLCTHLIYAF 58
+VV YYT+WS Y + P +I TH+ YAF
Sbjct: 39 KVVGYYTSWSQYDRQ--DYFPGDIPLDQLTHINYAF 72
>gnl|CDD|119358 cd02879, GH18_plant_chitinase_class_V, The class V plant
chitinases have a glycosyl hydrolase family 18 (GH18)
domain, but lack the chitin-binding domain present in
other GH18 enzymes. The GH18 domain of the class V
chitinases has endochitinase activity in some cases and
no catalytic activity in others. Included in this
family is a lectin found in black locust (Robinia
pseudoacacia) bark, which binds chitin but lacks
chitinase activity. Also included is a
chitinase-related receptor-like kinase (CHRK1) from
tobacco (Nicotiana tabacum), with an N-terminal GH18
domain and a C-terminal kinase domain, which is thought
to be part of a plant signaling pathway. The GH18
domain of CHRK1 is expressed extracellularly where it
binds chitin but lacks chitinase activity.
Length = 299
Score = 32.0 bits (73), Expect = 0.044
Identities = 13/29 (44%), Positives = 16/29 (55%)
Query: 36 PGTAKFTPQNINPYLCTHLIYAFGGLDKE 64
+ +F P NI+ L THL YAF LD
Sbjct: 11 AWSEEFPPSNIDSSLFTHLFYAFADLDPS 39
>gnl|CDD|222862 PHA02539, 18, tail sheath protein; Provisional.
Length = 648
Score = 28.9 bits (65), Expect = 0.58
Identities = 10/25 (40%), Positives = 13/25 (52%)
Query: 6 CSLLLSDIRVKRGSSEKRVVCYYTN 30
S L +I+ G + RVVC TN
Sbjct: 580 VSQYLQNIQALGGIYDFRVVCDTTN 604
>gnl|CDD|236181 PRK08193, araD, L-ribulose-5-phosphate 4-epimerase; Reviewed.
Length = 231
Score = 27.5 bits (62), Expect = 1.4
Identities = 7/12 (58%), Positives = 10/12 (83%)
Query: 109 LERHYFRSHGKH 120
L++HY R HGK+
Sbjct: 214 LDKHYLRKHGKN 225
>gnl|CDD|226614 COG4129, COG4129, Predicted membrane protein [Function unknown].
Length = 332
Score = 27.3 bits (61), Expect = 1.8
Identities = 4/17 (23%), Positives = 9/17 (52%)
Query: 101 HQNLVFYSLERHYFRSH 117
+ + + E H+F+S
Sbjct: 199 AKLIAYRREENHFFKSS 215
>gnl|CDD|185474 PTZ00141, PTZ00141, elongation factor 1- alpha; Provisional.
Length = 446
Score = 27.4 bits (61), Expect = 2.3
Identities = 13/30 (43%), Positives = 17/30 (56%), Gaps = 6/30 (20%)
Query: 53 HLIYAFGGLDKENGLRPFDKYQD--IEQGK 80
HLIY GG+DK R +K++ E GK
Sbjct: 26 HLIYKCGGIDK----RTIEKFEKEAAEMGK 51
>gnl|CDD|224792 COG1880, CdhB, CO dehydrogenase/acetyl-CoA synthase epsilon subunit
[Energy production and conversion].
Length = 170
Score = 26.3 bits (58), Expect = 3.9
Identities = 9/31 (29%), Positives = 14/31 (45%)
Query: 46 INPYLCTHLIYAFGGLDKENGLRPFDKYQDI 76
I+ Y + Y+F L K+ L D+ D
Sbjct: 140 IDRYYQPNADYSFPNLSKDEYLAYLDELLDE 170
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
0.323 0.138 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: 6,182,171
Number of extensions: 508305
Number of successful extensions: 307
Number of sequences better than 10.0: 1
Number of HSP's gapped: 301
Number of HSP's successfully gapped: 19
Length of query: 122
Length of database: 10,937,602
Length adjustment: 84
Effective length of query: 38
Effective length of database: 7,211,866
Effective search space: 274050908
Effective search space used: 274050908
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.5 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.9 bits)
S2: 53 (24.2 bits)