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CATH Superfamily 2.20.28.230

The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was: waiting to be named.

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 6: Zona pellucida sperm-binding protein 3 receptor

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 2 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Protein binding GO:0005515
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
 2 Q60736 (/IPI) Q60736 (/IPI)
Structural molecule activity GO:0005198
The action of a molecule that contributes to the structural integrity of a complex or its assembly within or outside a cell.
 1 O08569 (/NAS)

There are 6 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Binding of sperm to zona pellucida GO:0007339
The process in which the sperm binds to the zona pellucida glycoprotein layer of the egg. The process begins with the attachment of the sperm plasma membrane to the zona pellucida and includes attachment of the acrosome inner membrane to the zona pellucida after the acrosomal reaction takes place.
 3 Q60736 (/IMP) Q60736 (/IMP) Q7TSY4 (/IMP)
Single fertilization GO:0007338
The union of male and female gametes to form a zygote.
 2 Q60736 (/IDA) Q60736 (/IDA)
Binding of sperm to zona pellucida GO:0007339
The process in which the sperm binds to the zona pellucida glycoprotein layer of the egg. The process begins with the attachment of the sperm plasma membrane to the zona pellucida and includes attachment of the acrosome inner membrane to the zona pellucida after the acrosomal reaction takes place.
 2 Q60736 (/IDA) Q60736 (/IDA)
Binding of sperm to zona pellucida GO:0007339
The process in which the sperm binds to the zona pellucida glycoprotein layer of the egg. The process begins with the attachment of the sperm plasma membrane to the zona pellucida and includes attachment of the acrosome inner membrane to the zona pellucida after the acrosomal reaction takes place.
 2 Q60736 (/ISO) Q60736 (/ISO)
Organelle organization GO:0006996
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of an organelle within a cell. An organelle is an organized structure of distinctive morphology and function. Includes the nucleus, mitochondria, plastids, vacuoles, vesicles, ribosomes and the cytoskeleton. Excludes the plasma membrane.
 1 O08569 (/NAS)
Acrosome reaction GO:0007340
The discharge, by sperm, of a single, anterior secretory granule following the sperm's attachment to the zona pellucida of the oocyte. The process begins with the fusion of the outer acrosomal membrane with the sperm plasma membrane and ends with the exocytosis of the acrosomal contents into the zona pellucida.
 1 O08569 (/NAS)

There are 8 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Acrosomal matrix GO:0043159
A structural framework, or 'dense core' at the interior of an acrosome. May regulate the distribution of hydrolases within the acrosome and their release during the acrosome reaction.
 4 O08569 (/IDA) Q60736 (/IDA) Q60736 (/IDA) Q7TSY4 (/IDA)
Acrosomal vesicle GO:0001669
A structure in the head of a spermatozoon that contains acid hydrolases, and is concerned with the breakdown of the outer membrane of the ovum during fertilization. It lies just beneath the plasma membrane and is derived from the lysosome.
 2 Q60736 (/EXP) Q60736 (/EXP)
Acrosomal vesicle GO:0001669
A structure in the head of a spermatozoon that contains acid hydrolases, and is concerned with the breakdown of the outer membrane of the ovum during fertilization. It lies just beneath the plasma membrane and is derived from the lysosome.
 2 Q60736 (/IDA) Q60736 (/IDA)
Outer acrosomal membrane GO:0002081
The acrosomal membrane region that underlies the plasma membrane of the sperm. This membrane fuses with the sperm plasma membrane as part of the acrosome reaction.
 2 Q60736 (/IDA) Q60736 (/IDA)
Zona pellucida receptor complex GO:0002199
A multisubunit complex comprising the chaperonin-containing T-complex and several other components involved in mediating sperm-oocyte Interaction.
 2 Q60736 (/IDA) Q60736 (/IDA)
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
 2 Q60736 (/IDA) Q60736 (/IDA)
Acrosomal matrix GO:0043159
A structural framework, or 'dense core' at the interior of an acrosome. May regulate the distribution of hydrolases within the acrosome and their release during the acrosome reaction.
 2 Q60736 (/ISO) Q60736 (/ISO)
Cell body GO:0044297
The portion of a cell bearing surface projections such as axons, dendrites, cilia, or flagella that includes the nucleus, but excludes all cell projections.
 2 Q60736 (/IDA) Q60736 (/IDA)