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| # OAS95-aligned-cleaned |
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| A cleaned and IMGT-aligned antibody sequence dataset derived from the Observed Antibody Space (OAS) database. |
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| ## Preparation |
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| - Started from the OAS dataset preprocessed with the IgLM pipeline and clustered at 95% sequence identity. |
| - Numbered all sequences with ANARCII using the IMGT numbering scheme. |
| - Removed heavy- and light-chain sequences with numbering gaps at the first framework position. |
| - Removed light-chain sequences shorter than 90 residues. |
| - Retained 203,968,932 training sequences and 11,819,793 test sequences across 6 organism labels and 2 chain types. |
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| ## Columns |
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| | Column | Description | |
| | --- | --- | |
| | `sequence` | IMGT-aligned amino acid sequence with gap characters. | |
| | `init_seq` | Original amino acid sequence without alignment gaps. | |
| | `class` | Organism label. | |
| | `type` | Antibody chain type: `Heavy` or `Light`. | |
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| ## Split Sizes |
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| - train: 203,968,932 |
| - test: 11,819,793 |
| - total: 215,788,725 |
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