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Literature summary for 3.2.1.23 extracted from
- Rat spermatogenic cell beta-D-galactosidase: characterization, biosynthesis, and immunolocalization (2000), Exp. Cell Res., 261, 139-149.
Localization
| Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|
| acrosome | - |
Rattus norvegicus | - |
- |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 62000 | - |
x * 62000, enzyme from round spermatids, SDS-PAGE | Rattus norvegicus |
| 64000 | - |
x * 64000, enzyme from spermatocytes, SDS-PAGE | Rattus norvegicus |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| additional information | Rattus norvegicus | the enzyme along with other exoglycohydrolases and proteases, is thought to aid in penetration of the zona pellucida, the extracellular glycocalyx that surrounds the mammalian egg | ? | - |
? |  |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Rattus norvegicus | - |
- |
- |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| sperm | the enzyme is expressed in late spermatocytes and spermatids (round, elongated/condensed) during spermatogenesis | Rattus norvegicus | - |
| spermatid | the enzyme is expressed in late spermatocytes and spermatids (round, elongated/condensed) during spermatogenesis | Rattus norvegicus | - |
| spermatocyte | the enzyme is expressed in late spermatocytes and spermatids (round, elongated/condensed) during spermatogenesis | Rattus norvegicus | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| additional information | the enzyme along with other exoglycohydrolases and proteases, is thought to aid in penetration of the zona pellucida, the extracellular glycocalyx that surrounds the mammalian egg | Rattus norvegicus | ? | - |
? | |
| p-nitrophenyl beta-D-galactopyranoside + H2O | - |
Rattus norvegicus | p-nitrophenol + beta-D-galactose | - |
? | |
Subunits
| Subunits | Comment | Organism |
|---|---|---|
| ? | x * 62000, enzyme from round spermatids, SDS-PAGE | Rattus norvegicus |
| ? | x * 64000, enzyme from spermatocytes, SDS-PAGE | Rattus norvegicus |
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Release 2023.1 (January 2023)
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