Protein Domain : IPR018155

Type:  Family Name:  Hyaluronidase
Description:  O-Glycosyl hydrolases () are a widespread group of enzymes that hydrolyse the glycosidic bond between two or more carbohydrates, or between a carbohydrate and a non-carbohydrate moiety. A classification system for glycosyl hydrolases, based on sequence similarity, has led to the definition of 85 different families [, ]. This classification is available on the CAZy (CArbohydrate-Active EnZymes) web site.Glycoside hydrolase family 56 comprises enzymes with only one known activity; hyaluronidase .The venom of Apis mellifera(Honeybee) contains several biologically-active peptides and two enzymes, one of which is a hyaluronidase []. The amino acid sequenceof bee venom hyaluronidase contains 349 amino acids, and includes four cysteines and a number of potential glycosylation sites []. The sequenceshows a high degree of similarity to PH-20, a membrane protein of mammalian sperm involved in sperm-egg adhesion, supporting the view that hyaluronidasesplay a role in fertilisation [].PH-20 is required for sperm adhesion to the egg zona pellucida; it is located on both the sperm plasma membrane and acrosomal membrane []. Theamino acid sequence of the mature protein contains 468 amino acids, and includes six potential N-linked glycosylation sites and twelve cysteines,eight of which are tightly clustered near the C terminus []. Short Name:  Hyaluronidase

3 Child Features

DB identifier Type Name
IPR001329 Family Glycoside hydrolase family 56, bee venom hyaluronidase
IPR001439 Family Hyaluronidase PH20
IPR027260 Family Hyaluronidase-3

2 Contains

DB identifier Type Name
IPR013785 Domain Aldolase-type TIM barrel
IPR017853 Domain Glycoside hydrolase superfamily

4 Cross Referencess

Identifier
PTHR11769
PF01630
PIRSF038193
PR00846

0 Found In

2 GO Annotations

GO Term Gene Name
GO:0004415 IPR018155
GO:0005975 IPR018155

2 Ontology Annotations

GO Term Gene Name
GO:0004415 IPR018155
GO:0005975 IPR018155

0 Parent Features

1 Proteins

DB identifier UniProt Accession Secondary Identifier Organism Name Length
Medtr1735s0010.1 A0A072TD96 PAC:31105826 Medicago truncatula 292  

4 Publications

First Author Title Year Journal Volume Pages PubMed ID
            7624375
            8535779
            7682712
            2269661