HAMAP rule MF_00872
General rule information
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| PURL | https://purl.expasy.org/hamap/rule/MF_00872 |
| Accession | MF_00872 |
| Dates | 06-OCT-2025 (Created)
14-OCT-2025 (Last updated, Version ) |
| Name | Ribosomal_aS21 |
| Scope(s) |
Archaea |
| Template(s) | Q980V0; Q5JFE2; D4GWB3; Q8TZM6; A0A218P055; [ Recover all ] |
| Triggered by |
HAMAP; MF_00872 (Get profile general information and statistics) |
Propagated annotation
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Identifier, protein and gene names
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| Identifier | RS21 |
| Protein name | RecName: Full=Small ribosomal subunit protein aS21; |
| Gene name | Name=rps21a; |
Comments
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| FUNCTION | Component of the small ribosomal subunit. The ribosome is a large ribonucleoprotein complex responsible for the synthesis of proteins in the cell. |
| case <FTGroup:1> and <FTGroup:2> | |
| COFACTOR | Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Note=Binds 2 Zn(2+) ions per subunit.; |
| else case <FTGroup:2> and not <FTGroup:1> | |
| COFACTOR | Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Note=Binds 1 Zn(2+) ion per subunit.; |
| end case | |
| SUBUNIT | Component of the 30S small ribosomal subunit. |
| SUBCELLULAR LOCATION | Cytoplasm. |
| SIMILARITY | Belongs to the archaeal ribosomal protein aS21 family. |
Keywords
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| Cytoplasm | |
| RNA-binding | |
| Ribonucleoprotein | |
| Ribosomal protein | |
| case <FTGroup:1> or <FTGroup:2> | |
| Metal-binding | |
| Zinc | |
| end case | |
| rRNA-binding | |
Gene Ontology
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| GO:0005737; Cellular component:cytoplasm | |
| GO:0006412; Biological process:translation | |
| case <FTGroup:1> or <FTGroup:2> | |
| GO:0008270; Molecular function:zinc ion binding | |
| end case | |
Cross-references
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Features
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| From: RS21_SACS2 (Q980V0) | ||||||||||||
| Key | From | To | Description | Tag | Condition | FTGroup | ||||||
| BINDING | 16 | 16 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="#1" |
C | 1 | |||||||
| BINDING | 19 | 19 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="#1" |
C | 1 | |||||||
| BINDING | 34 | 34 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="#2" |
C | 2 | |||||||
| BINDING | 37 | 37 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="#2" |
C | 2 | |||||||
| BINDING | 45 | 45 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="#1" |
[CD] | 1 | |||||||
| BINDING | 48 | 48 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="#1" |
C | 1 | |||||||
| BINDING | 57 | 57 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="#2" |
C | 2 | |||||||
| BINDING | 60 | 60 | /ligand="Zn(2+)" /ligand_id="ChEBI:CHEBI:29105" /ligand_label="#2" |
C | 2 | |||||||
Additional information
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| Size range | 50-100 amino acids |
| Related rules |
None |
| Fusion | Nter: None Cter: None |