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GO Term History: Displaying 9 audit records for all terms for the date 2006-07-25

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Introduction

This page displays the differences recorded in the full Gene Ontology OBO v1.2 file as audited by the UniProt-GOA database during its daily update cycle.
If there is any delay in uploading the current OBO file, the changes displayed and the date recorded for these changes may not correspond to when the changes to the OBO file were committed.

All changes

Timestamp GO ID GO Term Name Action Category Detail
2006-07-25 GO:0002081 outer acrosomal membrane Added DEFINITION The acrosomal region that underlies the plasma membrane of the sperm. This membrane fuses with the sperm plasma membrane as part of the acrosome reaction.
2006-07-25 GO:0002080 acrosomal membrane Added DEFINITION The membrane that surrounds the acrosomal lumen. The acrosome is a special type of lysosome 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.
2006-07-25 GO:0002077 acrosome matrix dispersal Added DEFINITION The proteolytic digestion of components in the acrosomal matrix that allows for their release into the egg. The dispersal of the components allows for the inner acrosomal membrane to interact with the egg.
2006-07-25 GO:0007340 acrosome reaction Updated DEFINITION The discharge, by sperm, of a single, anterior secretory granule following their attachment to the zona pellucida surrounding the oocyte. The process begins with the fusion of the outer acrosomal membrane with the sperm plasma membrane and ends with the disperasl of the acrosomal contents into the egg.
2006-07-25 GO:0007339 binding of sperm to zona pellucida Added DEFINITION The process by 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.
2006-07-25 GO:0002079 inner acrosomal membrane Added DEFINITION The acrosomal membrane region that underlies the acrosomal vesicle and is located toward the sperm nucleus. This region is responsible for molecular interactions allowing the sperm to penetrate the zona pellucida and fuses with the egg plasma membrane.
2006-07-25 GO:0002078 membrane fusion involved in acrosome reaction Added DEFINITION The fusion of the plasma membrane of the sperm with the outer acrosomal membrane.
2006-07-25 GO:0002075 somitomeric trunk muscle development Updated DEFINITION The process whose specific outcome is the progression of the somitomeric trunk muscle over time, from its formation to the mature structure. The somitomeric trunk muscle is derived from somitomeric mesoderm. The muscle begins its development with the differentiation of the muscle cells and ends with the mature muscle. As in, but not restricted to, mammals (Mammalia, ncbi_taxonomy_id:40674).
2006-07-25 GO:0002076 osteoblast development Added DEFINITION The process whose specific outcome is the progression of an osteoblast over time, from its formation to the mature structure. Osteoblast development does not include the steps involved in committing a cranial neural crest cell or an osteoprogenitor cell to an osteoblast fate. An osteoblast is a cell that gives rise to bone.

Definition/synonyms

Timestamp GO ID GO Term Name Action Category Detail
2006-07-25 GO:0002081 outer acrosomal membrane Added DEFINITION The acrosomal region that underlies the plasma membrane of the sperm. This membrane fuses with the sperm plasma membrane as part of the acrosome reaction.
2006-07-25 GO:0002080 acrosomal membrane Added DEFINITION The membrane that surrounds the acrosomal lumen. The acrosome is a special type of lysosome 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.
2006-07-25 GO:0002077 acrosome matrix dispersal Added DEFINITION The proteolytic digestion of components in the acrosomal matrix that allows for their release into the egg. The dispersal of the components allows for the inner acrosomal membrane to interact with the egg.
2006-07-25 GO:0007340 acrosome reaction Updated DEFINITION The discharge, by sperm, of a single, anterior secretory granule following their attachment to the zona pellucida surrounding the oocyte. The process begins with the fusion of the outer acrosomal membrane with the sperm plasma membrane and ends with the disperasl of the acrosomal contents into the egg.
2006-07-25 GO:0007339 binding of sperm to zona pellucida Added DEFINITION The process by 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.
2006-07-25 GO:0002079 inner acrosomal membrane Added DEFINITION The acrosomal membrane region that underlies the acrosomal vesicle and is located toward the sperm nucleus. This region is responsible for molecular interactions allowing the sperm to penetrate the zona pellucida and fuses with the egg plasma membrane.
2006-07-25 GO:0002078 membrane fusion involved in acrosome reaction Added DEFINITION The fusion of the plasma membrane of the sperm with the outer acrosomal membrane.
2006-07-25 GO:0002075 somitomeric trunk muscle development Updated DEFINITION The process whose specific outcome is the progression of the somitomeric trunk muscle over time, from its formation to the mature structure. The somitomeric trunk muscle is derived from somitomeric mesoderm. The muscle begins its development with the differentiation of the muscle cells and ends with the mature muscle. As in, but not restricted to, mammals (Mammalia, ncbi_taxonomy_id:40674).
2006-07-25 GO:0002076 osteoblast development Added DEFINITION The process whose specific outcome is the progression of an osteoblast over time, from its formation to the mature structure. Osteoblast development does not include the steps involved in committing a cranial neural crest cell or an osteoprogenitor cell to an osteoblast fate. An osteoblast is a cell that gives rise to bone.
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