2M0M

Structural Characterization of Minor Ampullate Spidroin Domains and their Distinct Roles in Fibroin Solubility and Fiber Formation

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	CTD of spidroin-like	8046196	4004947	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	CTD of spidroin-like	8052497	3002123	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	CTD of spidroin-like	8052497	3002123	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)
A	Spidroin_MaSp	e2m0mA1	A: alpha duplicates or obligate multimers	X: Minor ampullate fibroin 1 C-terminal domain (From Topology)	H: Minor ampullate fibroin 1 C-terminal domain (From Topology)	T: Minor ampullate fibroin 1 C-terminal domain	F: Spidroin_MaSp	ECOD (1.6)
B	Spidroin_MaSp	e2m0mB1	A: alpha duplicates or obligate multimers	X: Minor ampullate fibroin 1 C-terminal domain (From Topology)	H: Minor ampullate fibroin 1 C-terminal domain (From Topology)	T: Minor ampullate fibroin 1 C-terminal domain	F: Spidroin_MaSp	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.10.1350	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Spidroin domain, C-terminal domain	CATH (4.3.0)
B	1.10.10.1350	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Spidroin domain, C-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF11260	Major ampullate spidroin 1 and 2 (Spidroin_MaSp)	Major ampullate spidroin 1 and 2	-	Family

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR043070	Spidroin, repetitive domain	Homologous Superfamily
A, B	IPR021915	Tubuliform egg casing silk strands structural domain	Domain
A, B	IPR021001	Spidroin, C-terminal	Domain
A, B	IPR038542	Spidroin, C-terminal domain superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.