Update README.md

README.md

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 # PDB 3Di Chains Dataset
 
 This repository contains chain-level sequences and 3Di tokens derived from RCSB PDB structures, with per-chain polymer class labels (`prot`, `DNA`, `RNA`, `other`). Files are chunked/merged from 1k-folders and cleaned for consistent CSV schema.
+Current data based on only 120K proteins.
 
 ## Files
 
 3di_chains_chaintag_all.csv  
 474 MB  
-xet  
-Upload 4 files  
-13 minutes ago
 
 3di_chains_chaintag_prot_only.csv  
 464 MB  
-xet  
-Upload 4 files  
-13 minutes ago
-
-3di_chains_chaintag_raw.csv  
-482 MB  
-xet  
-Upload 4 files  
-13 minutes ago
 
 3di_chains_chaintag_sample_1000.csv
 
+
 - `_all` contains **all chains** (including **D-amino**, **RNA**, **DNA**, and any others).
 - `_prot_only` contains **protein chains only** (L- and D-amino acids treated as protein).
-- `_raw` is the merged, minimally-processed export prior to minor repairs (e.g., malformed lines).
 - `_sample_1000` is a 1,000-row random sample for quick inspection.
 
 ## Schema