6R9D | pdb_00006r9d

Crystal structure of an asymmetric dimer of the N-terminal domain of Euprosthenops australis Major Ampullate Spidroin 1 (dragline silk)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
F	SCOP2B Superfamily	NTD of spidroin-like	8052370	3002108	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	NTD of spidroin-like	8052370	3002108	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	NTD of spidroin-like	8052370	3002108	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	NTD of spidroin-like	8052370	3002108	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	NTD of spidroin-like	8052370	3002108	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	NTD of spidroin-like	8052370	3002108	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F	Spidroin_N	e6r9dF1	A: alpha arrays	X: PWI domain-like	H: N-terminal domain of egg case silk protein TuSp1 (From Topology)	T: N-terminal domain of egg case silk protein TuSp1	F: Spidroin_N	ECOD (1.6)
E	Spidroin_N	e6r9dE1	A: alpha arrays	X: PWI domain-like	H: N-terminal domain of egg case silk protein TuSp1 (From Topology)	T: N-terminal domain of egg case silk protein TuSp1	F: Spidroin_N	ECOD (1.6)
D	Spidroin_N	e6r9dD1	A: alpha arrays	X: PWI domain-like	H: N-terminal domain of egg case silk protein TuSp1 (From Topology)	T: N-terminal domain of egg case silk protein TuSp1	F: Spidroin_N	ECOD (1.6)
C	Spidroin_N	e6r9dC1	A: alpha arrays	X: PWI domain-like	H: N-terminal domain of egg case silk protein TuSp1 (From Topology)	T: N-terminal domain of egg case silk protein TuSp1	F: Spidroin_N	ECOD (1.6)
B	Spidroin_N	e6r9dB1	A: alpha arrays	X: PWI domain-like	H: N-terminal domain of egg case silk protein TuSp1 (From Topology)	T: N-terminal domain of egg case silk protein TuSp1	F: Spidroin_N	ECOD (1.6)
A	Spidroin_N	e6r9dA1	A: alpha arrays	X: PWI domain-like	H: N-terminal domain of egg case silk protein TuSp1 (From Topology)	T: N-terminal domain of egg case silk protein TuSp1	F: Spidroin_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F	1.10.274.70	Mainly Alpha	Orthogonal Bundle	Enzyme I	Chain A, domain 2	CATH (utative)
E	1.10.274.70	Mainly Alpha	Orthogonal Bundle	Enzyme I	Chain A, domain 2	CATH (utative)
D	1.10.274.70	Mainly Alpha	Orthogonal Bundle	Enzyme I	Chain A, domain 2	CATH (utative)
C	1.10.274.70	Mainly Alpha	Orthogonal Bundle	Enzyme I	Chain A, domain 2	CATH (utative)
B	1.10.274.70	Mainly Alpha	Orthogonal Bundle	Enzyme I	Chain A, domain 2	CATH (utative)
A	1.10.274.70	Mainly Alpha	Orthogonal Bundle	Enzyme I	Chain A, domain 2	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	PF16763	Major ampullate spidroin 1, spider silk protein 1, N-term (Spidroin_N)	Major ampullate spidroin 1, spider silk protein 1, N-term	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 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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F	Major ampullate spidroin 1	identical protein binding protein binding binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR038243	Spidroin, N-terminal domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR031913	Spidroin, N-terminal	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.