Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
BSCOP2B SuperfamilyTransthyretin (synonym: prealbumin) 8037673 3000848 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyTransthyretin (synonym: prealbumin) 8037673 3000848 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyTransthyretin (synonym: prealbumin) 8037673 3000848 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyTransthyretin (synonym: prealbumin) 8037673 3000848 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
BTransthyretine1sn2B1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Prealbumin-likeF: TransthyretinECOD (1.6)
ATransthyretine1sn2A1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Prealbumin-likeF: TransthyretinECOD (1.6)
CTransthyretine1sn2C1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Prealbumin-likeF: TransthyretinECOD (1.6)
DTransthyretine1sn2D1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Prealbumin-likeF: TransthyretinECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B, C, D
PF00576HIUase/Transthyretin family (Transthyretin)HIUase/Transthyretin familyThis family includes transthyretin that is a thyroid hormone-binding protein that transports thyroxine from the bloodstream to the brain. However, most of the sequences listed in this family do not bind thyroid hormones. They are actually enzymes of ...This family includes transthyretin that is a thyroid hormone-binding protein that transports thyroxine from the bloodstream to the brain. However, most of the sequences listed in this family do not bind thyroid hormones. They are actually enzymes of the purine catabolism that catalyse the conversion of 5-hydroxyisourate (HIU) to OHCU [2,3]. HIU hydrolysis is the original function of the family and is conserved from bacteria to mammals; transthyretins arose by gene duplications in the vertebrate lineage [4]. HIUases are distinguished in the alignment from the conserved C-terminal YRGS sequence.
Domain