+-----------+---------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-----------+---------+------+-----+---------+-------+ | ID | int(11) | YES | | NULL | | | EXP | char(1) | NO | | NULL | | | PDB_ID | char(5) | NO | MUL | NULL | | | CHAIN_ID | char(1) | NO | MUL | NULL | | | SEQ_COUNT | int(11) | NO | MUL | NULL | | | SEQUENCE | text | YES | | NULL | | +-----------+---------+------+-----+---------+-------+