9LKI | pdb_00009lki

N-terminal domain (NTD) structure of aciniform spidroin 1(AcSp1) from Latrodectus hesperus

External Resource: Annotation


Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth D],
B [auth C],
C [auth A],
D [auth B]		PF16763Major ampullate spidroin 1, spider silk protein 1, N-term (Spidroin_N)Major ampullate spidroin 1, spider silk protein 1, N-termSpidroin is produced by a number of arachnids. Spidrions are made up of repetitive segments flanked by conserved non-repetitive domains, and this domain is the conserved non-repetitive region. Aggregation to form the rigid silk occurs due to associat ...Spidroin is produced by a number of arachnids. Spidrions are made up of repetitive segments flanked by conserved non-repetitive domains, and this domain is the conserved non-repetitive region. Aggregation to form the rigid silk occurs due to association at the repetitive regions, and the N-terminal domain is necessary to prevent premature aggregation during storage before extrusion. This N_terminal region inhibits precocious aggregation and then accelerates and directs self-assembly as the pH is lowered along the extrusion duct [1].
Domain

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A [auth D],
B [auth C],
C [auth A],
D [auth B]		IPR043070Spidroin, repetitive domainHomologous Superfamily
A [auth D],
B [auth C],
C [auth A],
D [auth B]		IPR003034SAP domainDomain
A [auth D],
B [auth C],
C [auth A],
D [auth B]		IPR038243Spidroin, N-terminal domain superfamilyHomologous Superfamily
A [auth D],
B [auth C],
C [auth A],
D [auth B]		IPR021915Tubuliform egg casing silk strands structural domainDomain
A [auth D],
B [auth C],
C [auth A],
D [auth B]		IPR021001Spidroin, C-terminalDomain
A [auth D],
B [auth C],
C [auth A],
D [auth B]		IPR031913Spidroin, N-terminalDomain
A [auth D],
B [auth C],
C [auth A],
D [auth B]		IPR038542Spidroin, C-terminal domain superfamilyHomologous Superfamily