Annotations: 2BTQ

Structure of BtubAB heterodimer from Prosthecobacter dejongeii

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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	d2btqa1	Alpha and beta proteins (a/b)	Tubulin nucleotide-binding domain-like	Tubulin nucleotide-binding domain-like	Tubulin, GTPase domain	Tubulin alpha-subunit	(Prosthecobacter dejongeii ) [TaxId: 48465 ],	SCOPe (2.08)
A	d2btqa2	Alpha and beta proteins (a+b)	Bacillus chorismate mutase-like	Tubulin C-terminal domain-like	Tubulin, C-terminal domain	Tubulin alpha-subunit	(Prosthecobacter dejongeii ) [TaxId: 48465 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Tubulin nucleotide-binding domain-like	8032731	3001758	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Tubulin C-terminal domain-like	8032730	3001732	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	Ribonuc_L-PSP	e2btqA1	A: beta barrels	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: Ribonuc_L-PSP	ECOD (v294.2)
A	CoA_trans	e2btqA2	A: beta barrels	X: HTH	H: HTH	T: winged helix domain	F: CoA_trans	ECOD (v294.2)
B	Topoisom_bac	e2btqB1	A: beta barrels	X: OB-fold	H: SH3	T: SH3	F: Topoisom_bac	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1440	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Tubulin/FtsZ, GTPase domain	CATH (4.3.0)
A	1.10.287.600	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.3.0)
B	3.40.50.1440	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Tubulin/FtsZ, GTPase domain	CATH (4.3.0)
B	3.30.1330.20	Alpha Beta	2-Layer Sandwich	60s Ribosomal Protein L30	Chain: A	CATH (4.3.0)
B	1.10.287.600	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	TUBULIN BTUBA	structural constituent of cytoskeleton structural molecule activity hydrolase activity catalytic activity binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding structural constituent of cytoskeleton structural molecule activity hydrolase activity catalytic activity binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding	microtubule-based process cellular process	polymeric cytoskeletal fiber intracellular anatomical structure intracellular membraneless organelle intracellular organelle cellular anatomical structure cytoskeleton organelle membraneless organelle supramolecular fiber microtubule supramolecular polymer supramolecular complex microtubule cytoskeleton
B	TUBULIN BTUBB	structural constituent of cytoskeleton structural molecule activity binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding structural constituent of cytoskeleton structural molecule activity binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity	microtubule-based process cellular process	polymeric cytoskeletal fiber intracellular anatomical structure intracellular membraneless organelle intracellular organelle cellular anatomical structure cytoskeleton organelle membraneless organelle supramolecular fiber microtubule supramolecular polymer supramolecular complex microtubule cytoskeleton

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR003008	Tubulin/FtsZ, GTPase domain	Domain
A	IPR008280	Tubulin/FtsZ, C-terminal	Homologous Superfamily
A	IPR017975	Tubulin, conserved site	Conserved Site
A	IPR002452	Alpha tubulin	Family
A	IPR000217	Tubulin	Family
A	IPR023123	Tubulin, C-terminal	Homologous Superfamily
A	IPR018316	Tubulin/FtsZ, 2-layer sandwich domain	Domain
A	IPR036525	Tubulin/FtsZ, GTPase domain superfamily	Homologous Superfamily
B	IPR003008	Tubulin/FtsZ, GTPase domain	Domain
B	IPR008280	Tubulin/FtsZ, C-terminal	Homologous Superfamily
B	IPR037103	Tubulin/FtsZ-like, C-terminal domain	Homologous Superfamily
B	IPR000217	Tubulin	Family
B	IPR023123	Tubulin, C-terminal	Homologous Superfamily
B	IPR002453	Beta tubulin	Family
B	IPR018316	Tubulin/FtsZ, 2-layer sandwich domain	Domain
B	IPR036525	Tubulin/FtsZ, GTPase domain superfamily	Homologous Superfamily

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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.