31VX | pdb_000031vx

Cryo-EM structure of 3-methylcrotonyl-CoA carboxylase (MCC) complex (BC-engaged BCCP state)from Mycobacterium smegmatis

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
G [auth A1], H [auth A2], I [auth A3]	PF00364	Biotin-requiring enzyme (Biotin_lipoyl)	Biotin-requiring enzyme	This family covers two Prosite entries, the conserved lysine residue binds biotin in one group and lipoic acid in the other. Note that the HMM does not currently recognise the Glycine cleavage system H proteins.	Domain
G [auth A1], H [auth A2], I [auth A3]	PF02786	Carbamoyl-phosphate synthase L chain, ATP binding domain (CPSase_L_D2)	Carbamoyl-phosphate synthase L chain, ATP binding domain	Carbamoyl-phosphate synthase catalyses the ATP-dependent synthesis of carbamyl-phosphate from glutamine or ammonia and bicarbonate. This important enzyme initiates both the urea cycle and the biosynthesis of arginine and/or pyrimidines [2]. The c ...	Carbamoyl-phosphate synthase catalyses the ATP-dependent synthesis of carbamyl-phosphate from glutamine or ammonia and bicarbonate. This important enzyme initiates both the urea cycle and the biosynthesis of arginine and/or pyrimidines [2]. The carbamoyl-phosphate synthase (CPS) enzyme in prokaryotes is a heterodimer of a small and large chain. The small chain promotes the hydrolysis of glutamine to ammonia, which is used by the large chain to synthesise carbamoyl phosphate. See Pfam:PF00988. The small chain has a GATase domain in the carboxyl terminus. See Pfam:PF00117. The ATP binding domain (this one) has an ATP-grasp fold.	Domain
G [auth A1], H [auth A2], I [auth A3]	PF02785	Biotin carboxylase C-terminal domain (Biotin_carb_C)	Biotin carboxylase C-terminal domain	Biotin carboxylase is a component of the acetyl-CoA carboxylase multi-component enzyme which catalyses the first committed step in fatty acid synthesis in animals, plants and bacteria. Most of the active site residues reported in reference [1] are in ...	Biotin carboxylase is a component of the acetyl-CoA carboxylase multi-component enzyme which catalyses the first committed step in fatty acid synthesis in animals, plants and bacteria. Most of the active site residues reported in reference [1] are in this C-terminal domain.	Domain
G [auth A1], H [auth A2], I [auth A3]	PF00289	Biotin carboxylase, N-terminal domain (Biotin_carb_N)	Biotin carboxylase, N-terminal domain	This domain is structurally related to the PreATP-grasp domain. The family contains the N-terminus of biotin carboxylase enzymes [1,3], and propionyl-CoA carboxylase A chain [2].	Domain
G [auth A1], H [auth A2], I [auth A3]	PF21139	Methylcrotonyl-CoA carboxylase, alpha-subunit, BT domain (BT_MCC_alpha)	Methylcrotonyl-CoA carboxylase, alpha-subunit, BT domain	This domain is found in the biotin-containing alpha subunit of the Methylcrotonyl-CoA carboxylase complex (MCC) from Pseudomonas aeruginosa (Swiss:Q9I299) and similar proteins. MCC is essential for the metabolism of leucine. The alpha subunit is orga ...	This domain is found in the biotin-containing alpha subunit of the Methylcrotonyl-CoA carboxylase complex (MCC) from Pseudomonas aeruginosa (Swiss:Q9I299) and similar proteins. MCC is essential for the metabolism of leucine. The alpha subunit is organised into the N-terminal biotin carboxylase (BC), the C-terminal biotin carboxyl carrier protein (BCCP) domains, and a domain that mediates BC-CT interactions (BT domain, this entry). This domain shows a central alpha-helix surrounded by a seven-stranded, highly-twisted anti-parallel beta-sheet, with an overall structure that has great similarity with the beta-barrel of the BT domain of the human MCC [1].	Domain
A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], F [auth D6]	PF01039	Carboxyl transferase domain (Carboxyl_trans)	Carboxyl transferase domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
G [auth A1], H [auth A2], I [auth A3]	biotin carboxylase	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding biotin carboxylase activity catalytic activity ligase activity, forming carbon-nitrogen bonds ligase activity cation binding metal ion binding	-	-
A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], F [auth D6]	Carboxyl transferase domain protein	CoA carboxylase activity methylcrotonoyl-CoA carboxylase activity ligase activity, forming carbon-carbon bonds catalytic activity ligase activity	L-leucine catabolic process catabolic process oxoacid metabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process branched-chain amino acid catabolic process proteinogenic amino acid metabolic process proteinogenic amino acid catabolic process carboxylic acid catabolic process metabolic process cellular process small molecule metabolic process branched-chain amino acid metabolic process L-leucine catabolic process catabolic process oxoacid metabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process branched-chain amino acid catabolic process proteinogenic amino acid metabolic process proteinogenic amino acid catabolic process carboxylic acid catabolic process metabolic process cellular process small molecule metabolic process branched-chain amino acid metabolic process small molecule catabolic process amino acid catabolic process L-leucine metabolic process	protein-containing complex catalytic complex methylcrotonoyl-CoA carboxylase complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
G [auth A1], H [auth A2], I [auth A3]	IPR005481	Biotin carboxylase-like, N-terminal domain	Domain
G [auth A1], H [auth A2], I [auth A3]	IPR011761	ATP-grasp fold	Domain
G [auth A1], H [auth A2], I [auth A3]	IPR011764	Biotin carboxylation domain	Domain
G [auth A1], H [auth A2], I [auth A3]	IPR050856	Biotin-dependent Carboxylase Complex	Family
G [auth A1], H [auth A2], I [auth A3]	IPR005479	Carbamoyl phosphate synthase, ATP-binding domain	Domain
G [auth A1], H [auth A2], I [auth A3]	IPR005482	Biotin carboxylase, C-terminal	Domain
G [auth A1], H [auth A2], I [auth A3]	IPR048429	Methylcrotonyl-CoA carboxylase, alpha-subunit, BT domain	Domain
G [auth A1], H [auth A2], I [auth A3]	IPR016185	Pre-ATP-grasp domain superfamily	Homologous Superfamily
G [auth A1], H [auth A2], I [auth A3]	IPR011054	Rudiment single hybrid motif	Homologous Superfamily
G [auth A1], H [auth A2], I [auth A3]	IPR011053	Single hybrid motif	Homologous Superfamily
G [auth A1], H [auth A2], I [auth A3]	IPR001882	Biotin-binding site	Binding Site
G [auth A1], H [auth A2], I [auth A3]	IPR000089	Biotin/lipoyl attachment	Domain
A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], F [auth D6]	IPR011763	Acetyl-coenzyme A carboxyltransferase, C-terminal	Domain
A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], F [auth D6]	IPR029045	ClpP/crotonase-like domain superfamily	Homologous Superfamily
A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], F [auth D6]	IPR011762	Acetyl-coenzyme A carboxyltransferase, N-terminal	Domain
A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], F [auth D6]	IPR045190	Methylcrotonoyl-CoA carboxylase beta chain MCCB/AccD1-like	Family
A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], A [auth D1], B [auth D2], C [auth D3], D [auth D4], E [auth D5], F [auth D6]	IPR034733	Acetyl-coenzyme A carboxylase carboxyl transferase subunit beta	Domain