 
   seq_region_id               INT(10) UNSIGNED NOT NULL DEFAULT '0',
   attrib_type_id              SMALLINT(5) UNSIGNED NOT NULL DEFAULT '0',
-  value                       TEXT NOT NULL DEFAULT '',
+  value                       TEXT NOT NULL,
 
   KEY type_val_idx (attrib_type_id, value(40)),
   KEY val_only_idx (value(40)),


  gene_id                     INT(10) UNSIGNED NOT NULL DEFAULT '0',
  attrib_type_id              SMALLINT(5) UNSIGNED NOT NULL DEFAULT '0',
  value                       TEXT NOT NULL DEFAULT '',

  KEY type_val_idx (attrib_type_id, value(40)),
  KEY val_only_idx (value(40)),


  translation_id              INT(10) UNSIGNED NOT NULL DEFAULT '0',
  attrib_type_id              SMALLINT(5) UNSIGNED NOT NULL DEFAULT '0',
  value                       TEXT NOT NULL,

  KEY type_val_idx (attrib_type_id, value(40)),
  KEY val_only_idx (value(40)),
