PROSITE logo

ProRule PRU01257


View rule in raw text format (no links)
PURL: https://purl.expasy.org/prosite/rule/PRU01257
General rule information [?]

Accession PRU01257
Dates 03-OCT-2019 (Created)
22-NOV-2019 (Last updated, Version )
Data class Domain;
Predictors PROSITE; PS51909; LYSOZYME_I
Name Invertebrate (I)-type lysozyme domain
Function I-type lysozymes have been identified in phylogenetically diverse organisms, including mollusca, nematoda, annelida, arthropoda and echinodermata. I-type lysozymes play an important role in immunity and digestion in invertebrates and are usually regarded as the first barrier against pathogens. I-type lysozymes exert multiple activities, such as muramidase, isopeptidase, chitinase, and non-enzymatic antibacterial activities.
Scope(s) Eukaryota
Metazoa
Example(s) Q8IU26;

Propagated annotation [?]

Identifier, protein and gene names [?]

case <FTGroup:1>
Protein name + RecName: EC=3.2.1.17;

Comments [?]

CATALYTIC ACTIVITY Reaction=Hydrolysis of (1->4)-beta-linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in a peptidoglycan and between N-acetyl-D-glucosamine residues in chitodextrins.; EC=3.2.1.17;
end case
SIMILARITYBelongs to the glycosyl hydrolase 22 family. Type-I lysozyme subfamily.
case <FTGroup:1>

Keywords [?]

Antimicrobial
Bacteriolytic enzyme
Glycosidase
Hydrolase
Antibiotic
end case
case <FTTag:disulf>
Disulfide bond
end case

Gene Ontology [?]

case <FTGroup:1>
GO:0003824; Molecular function:catalytic activity
GO:0019835; Biological process:cytolysis
GO:0042742; Biological process:defense response to bacterium
GO:0016798; Molecular function:hydrolase activity, acting on glycosyl bonds
GO:0008152; Biological process:metabolic process
GO:0016787; Molecular function:hydrolase activity

Features [?]

From: PS51909
Key From To Description Tag Condition FTGroup
DOMAIN from to /note="I-type lysozyme #"
ACT_SITE 16 16 /note="Proton donor" E 1
ACT_SITE 26 26 /note="Nucleophile" D 1
DISULFID 8 91 disulf C-x*-C
DISULFID 11 123 disulf C-x*-C
DISULFID 13 19 disulf C-x*-C
DISULFID 23 32 disulf C-x*-C
DISULFID 45 73 disulf C-x*-C
DISULFID 63 69 disulf C-x*-C
DISULFID 87 105 disulf C-x*-C

Additional information [?]

Size range 110-130 amino acids
Related rules None
Fusion None
Repeats 1
Topology Undefined

Copyright

PROSITE is copyrighted by the SIB Swiss Institute of Bioinformatics and distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND 4.0) License, see prosite_license.html.

UniProtKB rule member sequences [?]