1K53

Monomeric Protein L B1 Domain with a G15A Mutation

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-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1k53a1	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	Immunoglobulin-binding domains	Immunoglobulin-binding domains	Immunoglobulin light chain-binding domain of protein L	(Finegoldia magna ATCC 29328 ) [TaxId: 334413 ],	SCOPe (2.08)
A	d1k53a2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Finegoldia magna ATCC 29328 ) [TaxId: 334413 ],	SCOPe (2.08)
B	d1k53b1	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	Immunoglobulin-binding domains	Immunoglobulin-binding domains	Immunoglobulin light chain-binding domain of protein L	(Finegoldia magna ATCC 29328 ) [TaxId: 334413 ],	SCOPe (2.08)
B	d1k53b2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Finegoldia magna ATCC 29328 ) [TaxId: 334413 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Immunoglobulin-binding domains-like	8033431	3000399	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Immunoglobulin-binding domains-like	8033431	3000399	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	B1	e1k53A1	A: a+b two layers	X: beta-Grasp	H: Immunoglobulin-binding domains (From Topology)	T: Immunoglobulin-binding domains	F: B1	ECOD (1.6)
B	B1	e1k53B1	A: a+b two layers	X: beta-Grasp	H: Immunoglobulin-binding domains (From Topology)	T: Immunoglobulin-binding domains	F: B1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.20.10	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
B	3.10.20.10	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02246	Protein L b1 domain (B1)	Protein L b1 domain	Protein L is a bacterial protein with immunoglobulin (Ig) light chain-binding properties. It contains a number of homologous b1 repeats towards the N-terminus. These repeats have been found to be responsible for the interaction of protein L with Ig ...	Protein L is a bacterial protein with immunoglobulin (Ig) light chain-binding properties. It contains a number of homologous b1 repeats towards the N-terminus. These repeats have been found to be responsible for the interaction of protein L with Ig light chains [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Protein L	molecular adaptor activity cation binding ion binding binding metal ion binding small molecule binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR003147	Protein L, Ig light chain-binding	Repeat
A, B	IPR040912	Repeat of unknown function DUF5633	Repeat
A, B	IPR019931	LPXTG cell wall anchor domain	Domain

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.