6LPI | pdb_00006lpi

Crystal Structure of AHAS holo-enzyme

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)
H [auth D]		e6lpiD1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Epimerase	F:	ECOD (20:10:01)
F [auth C]		e6lpiC1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Epimerase	F:	ECOD (20:10:01)
D [auth B]		e6lpiB1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Epimerase	F:	ECOD (20:10:01)
B [auth A]		e6lpiA1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Epimerase	F:	ECOD (20:10:01)
G [auth H]		e6lpiH1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Epimerase	F:	ECOD (20:10:01)
E [auth G]		e6lpiG1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Epimerase	F:	ECOD (20:10:01)
C [auth F]		e6lpiF1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Epimerase	F:	ECOD (20:10:01)
A [auth E]		e6lpiE1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Epimerase	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
H [auth D]	3.40.50.970	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains	CATH (utative)
H [auth D]	3.40.50.1220	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	TPP-binding domain	CATH (utative)
F [auth C]	3.40.50.970	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains	CATH (utative)
F [auth C]	3.40.50.1220	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	TPP-binding domain	CATH (utative)
D [auth B]	3.40.50.970	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains	CATH (utative)
D [auth B]	3.40.50.1220	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	TPP-binding domain	CATH (utative)
B [auth A]	3.40.50.970	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains	CATH (utative)
B [auth A]	3.40.50.1220	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	TPP-binding domain	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth A], D [auth B], F [auth C], H [auth D]	PF00205	Thiamine pyrophosphate enzyme, central domain (TPP_enzyme_M)	Thiamine pyrophosphate enzyme, central domain	The central domain of TPP enzymes contains a 2-fold Rossman fold.	Domain
B [auth A], D [auth B], F [auth C], H [auth D]	PF02775	Thiamine pyrophosphate enzyme, C-terminal TPP binding domain (TPP_enzyme_C)	Thiamine pyrophosphate enzyme, C-terminal TPP binding domain		Domain
B [auth A], D [auth B], F [auth C], H [auth D]	PF02776	Thiamine pyrophosphate enzyme, N-terminal TPP binding domain (TPP_enzyme_N)	Thiamine pyrophosphate enzyme, N-terminal TPP binding domain		Domain
A [auth E], C [auth F], E [auth G], G [auth H]	PF01842	ACT domain (ACT)	ACT domain	This family of domains generally have a regulatory role. ACT domains are linked to a wide range of metabolic enzymes that are regulated by amino acid concentration. Pairs of ACT domains bind specifically to a particular amino acid leading to regulati ...	This family of domains generally have a regulatory role. ACT domains are linked to a wide range of metabolic enzymes that are regulated by amino acid concentration. Pairs of ACT domains bind specifically to a particular amino acid leading to regulation of the linked enzyme. The ACT domain is found in: D-3-phosphoglycerate dehydrogenase EC:1.1.1.95 Swiss:P08328, which is inhibited by serine [1]. Aspartokinase EC:2.7.2.4 Swiss:P53553, which is regulated by lysine. Acetolactate synthase small regulatory subunit Swiss:P00894, which is inhibited by valine. Phenylalanine-4-hydroxylase EC:1.14.16.1 Swiss:P00439, which is regulated by phenylalanine. Prephenate dehydrogenase EC:4.2.1.51 Swiss:P21203. formyltetrahydrofolate deformylase EC:3.5.1.10, Swiss:P37051, which is activated by methionine and inhibited by glycine. GTP pyrophosphokinase EC:2.7.6.5 Swiss:P11585	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth A], D [auth B], F [auth C], H [auth D]	Acetolactate synthase isozyme 1 large subunit	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding flavin adenine dinucleotide binding nucleoside phosphate binding anion binding nucleotide binding heterocyclic compound binding transketolase or transaldolase activity transferase activity acetolactate synthase activity cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding flavin adenine dinucleotide binding nucleoside phosphate binding anion binding nucleotide binding heterocyclic compound binding transketolase or transaldolase activity transferase activity acetolactate synthase activity catalytic activity vitamin binding thiamine pyrophosphate binding quaternary ammonium group binding sulfur compound binding	oxoacid metabolic process pyruvate family amino acid biosynthetic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process branched-chain amino acid metabolic process small molecule biosynthetic process carboxylic acid metabolic process L-amino acid biosynthetic process primary metabolic process L-valine biosynthetic process oxoacid metabolic process pyruvate family amino acid biosynthetic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process branched-chain amino acid metabolic process small molecule biosynthetic process carboxylic acid metabolic process L-amino acid biosynthetic process primary metabolic process L-valine biosynthetic process L-amino acid metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process branched-chain amino acid biosynthetic process proteinogenic amino acid biosynthetic process metabolic process cellular process alpha-amino acid biosynthetic process valine metabolic process isoleucine biosynthetic process isoleucine metabolic process	protein-containing complex cellular anatomical structure intracellular anatomical structure catalytic complex acetolactate synthase complex transferase complex cytoplasm
A [auth E], C [auth F], E [auth G], G [auth H]	Acetolactate synthase isozyme 1 small subunit	transketolase or transaldolase activity transferase activity acetolactate synthase activity catalytic activity enzyme regulator activity acetolactate synthase regulator activity molecular function regulator activity	oxoacid metabolic process pyruvate family amino acid biosynthetic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process branched-chain amino acid metabolic process small molecule biosynthetic process carboxylic acid metabolic process L-amino acid biosynthetic process primary metabolic process L-valine biosynthetic process oxoacid metabolic process pyruvate family amino acid biosynthetic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process branched-chain amino acid metabolic process small molecule biosynthetic process carboxylic acid metabolic process L-amino acid biosynthetic process primary metabolic process L-valine biosynthetic process L-amino acid metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process branched-chain amino acid biosynthetic process proteinogenic amino acid biosynthetic process metabolic process cellular process alpha-amino acid biosynthetic process valine metabolic process isoleucine biosynthetic process isoleucine metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol protein-containing complex catalytic complex acetolactate synthase complex transferase complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth A], D [auth B], F [auth C], H [auth D]	IPR045229	Thiamine pyrophosphate enzyme	Family
B [auth A], D [auth B], F [auth C], H [auth D]	IPR012001	Thiamine pyrophosphate enzyme, N-terminal TPP-binding domain	Domain
B [auth A], D [auth B], F [auth C], H [auth D]	IPR000399	TPP-binding enzyme, conserved site	Conserved Site
B [auth A], D [auth B], F [auth C], H [auth D]	IPR012000	Thiamine pyrophosphate enzyme, central domain	Domain
B [auth A], D [auth B], F [auth C], H [auth D]	IPR012846	Acetolactate synthase, large subunit, biosynthetic	Family
B [auth A], D [auth B], F [auth C], H [auth D]	IPR029061	Thiamin diphosphate-binding fold	Homologous Superfamily
B [auth A], D [auth B], F [auth C], H [auth D]	IPR039368	Acetolactate synthase large subunit, TPP binding domain	Domain
B [auth A], D [auth B], F [auth C], H [auth D]	IPR029035	DHS-like NAD/FAD-binding domain superfamily	Homologous Superfamily
B [auth A], D [auth B], F [auth C], H [auth D]	IPR011766	Thiamine pyrophosphate enzyme, TPP-binding	Domain
A [auth E], C [auth F], E [auth G], G [auth H]	IPR039557	AHAS, ACT domain	Domain
A [auth E], C [auth F], E [auth G], G [auth H]	IPR054480	Acetolactate synthase small subunit-like, ACT domain	Domain
A [auth E], C [auth F], E [auth G], G [auth H]	IPR004789	Acetolactate synthase, small subunit	Family
A [auth E], C [auth F], E [auth G], G [auth H]	IPR045865	ACT-like domain	Homologous Superfamily
A [auth E], C [auth F], E [auth G], G [auth H]	IPR002912	ACT domain	Domain

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.