Annotations: 2KSM

Central B domain of Rv0899 from Mycobacterium tuberculosis

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	BON	e2ksmA1	A: a/b three-layered sandwiches	X: Repetitive alpha hairpins	H: C2 domain	T: C2 domain	F: BON	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.1520.20	Alpha Beta	3-Layer(aba) Sandwich	hypothetical protein tt1634		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF04972	BON domain (BON)	BON domain	This domain is found in a family of osmotic shock protection proteins (e.g. Swiss:P27291). It is also found in some Secretins and a group of potential haemolysins. Its likely function is attachment to phospholipid membranes [1].	Domain
A	PF21923	BON-like domain (BON_like)	BON-like domain	This entry represents BON-like domain that appears to lack the first alpha helix of the classical BON domain structure.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	MYCOBACTERIUM TUBERCULOSIS RV0899/MT0922/OmpATb	wide pore channel activity passive transmembrane transporter activity channel activity porin activity transporter activity transmembrane transporter activity glycosaminoglycan binding binding carbohydrate derivative binding peptidoglycan binding cation binding ion binding metal ion binding small molecule binding	transmembrane transport localization nitrogen compound transport transport ammonium transmembrane transport cellular process establishment of localization monoatomic ion transport biological process involved in interspecies interaction between organisms response to stimulus response to other organism response to host pH environment response to external stimulus response to host transmembrane transport localization nitrogen compound transport transport ammonium transmembrane transport cellular process establishment of localization monoatomic ion transport biological process involved in interspecies interaction between organisms response to stimulus response to other organism response to host pH environment response to external stimulus response to host response to external biotic stimulus response to biotic stimulus biological process involved in interaction with host biological process involved in symbiotic interaction response to pH response to abiotic stimulus response to acidic pH	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane external encapsulating structure extracellular region cell wall peptidoglycan-based cell wall cell outer membrane cell envelope outer membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR006664	Outer membrane protein, bacterial	Domain
A	IPR006690	Outer membrane protein, OmpA-like, conserved site	Conserved Site
A	IPR050330	Bacterial Outer Membrane Structural/Functional	Family
A	IPR054121	Peptidoglycan-binding protein ArfA, BON-like domain	Domain
A	IPR036737	OmpA-like domain superfamily	Homologous Superfamily
A	IPR006665	OmpA-like domain	Domain
A	IPR007055	BON domain	Domain

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.