1BTN

STRUCTURE OF THE BINDING SITE FOR INOSITOL PHOSPHATES IN A PH DOMAIN


Domain Annotation: SCOP Classification SCOP Database (version: 2.0) Homepage

ChainDomainClassArchitectureTopologyHomology
A2.30.29.30 Mainly Beta Roll PH-domain like Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionIdentifierDescriptionCommentsSource
APF00435Spectrin repeat (Spectrin)Spectrin repeatSpectrin repeat-domains are found in several proteins involved in cytoskeletal structure. These include spectrin, alpha-actinin and dystrophin. The sequence repeat used in this family is taken from the structural repeat in reference [2]. The spectr ...Spectrin repeat-domains are found in several proteins involved in cytoskeletal structure. These include spectrin, alpha-actinin and dystrophin. The sequence repeat used in this family is taken from the structural repeat in reference [2]. The spectrin domain- repeat forms a three helix bundle. The second helix is interrupted by proline in some sequences. The repeats are defined by a characteristic tryptophan (W) residue at position 17 in helix A and a leucine (L) at 2 residues from the carboxyl end of helix C. Although the domain occurs in multiple repeats along sequences, the domains are actually stable on their own - ie they act, biophysically, like domains rather than repeats that along function when aggregated.
Domain
APF00307Calponin homology (CH) domain (CH)Calponin homology (CH) domainThe CH domain is found in both cytoskeletal proteins and signal transduction proteins [1]. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its ac ...The CH domain is found in both cytoskeletal proteins and signal transduction proteins [1]. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity [4]. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin and Swiss:P15498 have only a single copy.
Domain
APF15410Pleckstrin homology domain (PH_9)Pleckstrin homology domainThis Pleckstrin homology domain is found in some fungal species.Domain

Gene Product Annotation Gene Product Annotation

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
ABETA-SPECTRIN