1PXY

Crystal structure of the actin-crosslinking core of Arabidopsis fimbrin

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
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: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1pxya_	All alpha proteins	CH domain-like	Calponin-homology domain, CH-domain	Calponin-homology domain, CH-domain	Fimbrin (Plastin), actin-crosslinking domain	thale cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
B	d1pxyb_	All alpha proteins	CH domain-like	Calponin-homology domain, CH-domain	Calponin-homology domain, CH-domain	Fimbrin (Plastin), actin-crosslinking domain	thale cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Calponin-homology domain CH-domain	8038358	3000264	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Calponin-homology domain CH-domain	8051963	3000264	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Calponin-homology domain CH-domain	8051961	3000264	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Calponin-homology domain CH-domain	8051962	3000264	SCOP2B (2022-06-29)
B	SCOP2 Family	Calponin-homology domain type 1/2 family	8025979	4004022	SCOP2 (2022-06-29)
B	SCOP2 Family	Calponin-homology domain type 1/2 family	8051958	4004022	SCOP2 (2022-06-29)
B	SCOP2 Family	Calponin-homology domain type 1/2 family	8051959	4004022	SCOP2 (2022-06-29)
B	SCOP2 Family	Calponin-homology domain type 1/2 family	8051960	4004022	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Calponin-homology domain CH-domain	8038358	3000264	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Calponin-homology domain CH-domain	8051961	3000264	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Calponin-homology domain CH-domain	8051962	3000264	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Calponin-homology domain CH-domain	8051963	3000264	SCOP2 (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	CH	e1pxyA1	A: alpha bundles	X: CH domain-like	H: Calponin-homology domain-like (From Topology)	T: Calponin-homology domain-like	F: CH	ECOD (1.6)
B	CH	e1pxyB1	A: alpha bundles	X: CH domain-like	H: Calponin-homology domain-like (From Topology)	T: Calponin-homology domain-like	F: CH	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.418.10	Mainly Alpha	Orthogonal Bundle	Actin-binding Protein, T-fimbrin	domain 1	CATH (4.3.0)
B	1.10.418.10	Mainly Alpha	Orthogonal Bundle	Actin-binding Protein, T-fimbrin	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00307	Calponin homology (CH) domain (CH)	Calponin homology (CH) domain	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 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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	fimbrin-like protein	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding cation binding ion binding metal ion binding small molecule binding	cellular component organization organelle organization actin filament network formation actin cytoskeleton organization actin filament organization actin filament-based process cellular process cellular component organization or biogenesis supramolecular fiber organization cytoskeleton organization rhythmic process circadian rhythm cellular component biogenesis cellular component assembly cellular component organization organelle organization actin filament network formation actin cytoskeleton organization actin filament organization actin filament-based process cellular process cellular component organization or biogenesis supramolecular fiber organization cytoskeleton organization rhythmic process circadian rhythm cellular component biogenesis cellular component assembly actin filament bundle organization actin filament bundle assembly	intracellular anatomical structure cytoplasm cellular anatomical entity intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle non-membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036872	CH domain superfamily	Homologous Superfamily
A, B	IPR001715	Calponin homology domain	Domain
A, B	IPR039959	Fimbrin/Plastin	Family
A, B	IPR001589	Actinin-type actin-binding domain, conserved site	Conserved Site
A, B	IPR011992	EF-hand domain pair	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.