PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23677799-0 2013 Claudin-2 pore function requires an intramolecular disulfide bond between two conserved extracellular cysteines. Disulfides 51-60 claudin 2 Canis lupus familiaris 0-9 23677799-5 2013 Immunoblotting showed a higher molecular mass band in the mutants with a single cysteine mutation, consistent with a claudin-2 dimer, suggesting that the two conserved cysteines normally form an intramolecular disulfide bond in wild-type claudin-2. Disulfides 210-219 claudin 2 Canis lupus familiaris 117-126 23677799-5 2013 Immunoblotting showed a higher molecular mass band in the mutants with a single cysteine mutation, consistent with a claudin-2 dimer, suggesting that the two conserved cysteines normally form an intramolecular disulfide bond in wild-type claudin-2. Disulfides 210-219 claudin 2 Canis lupus familiaris 238-247 23677799-9 2013 We conclude that the disulfide bond between the conserved extracellular cysteines in claudin-2 is necessary for pore formation, probably by stabilizing the ECL1 fold, but is not required for correct protein trafficking. Disulfides 21-30 claudin 2 Canis lupus familiaris 85-94