Annotations: 4H2H

Crystal structure of an enolase (mandalate racemase subgroup, target EFI-502101) from Pelagibaca bermudensis htcc2601, with bound mg and l-4-hydroxyproline betaine (betonicine)

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
H	d4h2hh2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Enolase C-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
H	d4h2hh1	Alpha and beta proteins (a+b)	Enolase N-terminal domain-like	Enolase N-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
H	d4h2hh3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
G	d4h2hg2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Enolase C-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
G	d4h2hg1	Alpha and beta proteins (a+b)	Enolase N-terminal domain-like	Enolase N-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
G	d4h2hg3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
F	d4h2hf2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Enolase C-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
F	d4h2hf1	Alpha and beta proteins (a+b)	Enolase N-terminal domain-like	Enolase N-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
F	d4h2hf3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
E	d4h2he2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Enolase C-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
E	d4h2he1	Alpha and beta proteins (a+b)	Enolase N-terminal domain-like	Enolase N-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
E	d4h2he3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
D	d4h2hd2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Enolase C-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
D	d4h2hd1	Alpha and beta proteins (a+b)	Enolase N-terminal domain-like	Enolase N-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
D	d4h2hd3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
C	d4h2hc2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Enolase C-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
C	d4h2hc1	Alpha and beta proteins (a+b)	Enolase N-terminal domain-like	Enolase N-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
C	d4h2hc3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
B	d4h2hb2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Enolase C-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
B	d4h2hb1	Alpha and beta proteins (a+b)	Enolase N-terminal domain-like	Enolase N-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
B	d4h2hb3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
A	d4h2ha2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Enolase C-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
A	d4h2ha1	Alpha and beta proteins (a+b)	Enolase N-terminal domain-like	Enolase N-terminal domain-like	automated matches	automated matches	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)
A	d4h2ha3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Salipiger bermudensis HTCC2601 ) [TaxId: 314265 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
H	V-set	e4h2hH1	A: alpha arrays	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: V-set	ECOD (v295.2)
G	V-set	e4h2hG1	A: alpha arrays	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: V-set	ECOD (v295.2)
F	V-set	e4h2hF1	A: alpha arrays	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: V-set	ECOD (v295.2)
E	V-set	e4h2hE1	A: alpha arrays	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: V-set	ECOD (v295.2)
D	V-set	e4h2hD1	A: alpha arrays	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: V-set	ECOD (v295.2)
C	V-set	e4h2hC1	A: alpha arrays	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: V-set	ECOD (v295.2)
B	V-set	e4h2hB1	A: alpha arrays	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: V-set	ECOD (v295.2)
A	MR_MLE_C	e4h2hA1	A: alpha arrays	X: GIY-YIG endonuclease	H: GIY-YIG endonuclease	T: GIY-YIG endonuclease	F: MR_MLE_C	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
H	3.30.390.10	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	CATH (4.3.0)
H	3.20.20.120	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Enolase-like C-terminal domain	CATH (4.3.0)
G	3.30.390.10	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	CATH (4.3.0)
G	3.20.20.120	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Enolase-like C-terminal domain	CATH (4.3.0)
F	3.30.390.10	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	CATH (4.3.0)
F	3.20.20.120	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Enolase-like C-terminal domain	CATH (4.3.0)
E	3.30.390.10	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	CATH (4.3.0)
E	3.20.20.120	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Enolase-like C-terminal domain	CATH (4.3.0)
D	3.30.390.10	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	CATH (4.3.0)
D	3.20.20.120	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Enolase-like C-terminal domain	CATH (4.3.0)
C	3.30.390.10	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	CATH (4.3.0)
C	3.20.20.120	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Enolase-like C-terminal domain	CATH (4.3.0)
B	3.30.390.10	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	CATH (4.3.0)
B	3.20.20.120	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Enolase-like C-terminal domain	CATH (4.3.0)
A	3.30.390.10	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	CATH (4.3.0)
A	3.20.20.120	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Enolase-like C-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F, G, H	PF02746	Mandelate racemase / muconate lactonizing enzyme, N-terminal domain (MR_MLE_N)	Mandelate racemase / muconate lactonizing enzyme, N-terminal domain	SCOP reports fold similarity with enolase N-terminal domain.	Domain
A, B, C, D, E A, B, C, D, E, F, G, H	PF13378	Enolase C-terminal domain-like (MR_MLE_C)	Enolase C-terminal domain-like	This domain appears at the C-terminus of many of the proteins that carry the MR_MLE_N Pfam:PF02746 domain. EC:4.2.1.40.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F, G, H	Mandelate racemase/muconate lactonizing enzyme	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding isomerase activity racemase and epimerase activity racemase and epimerase activity, acting on amino acids and derivatives amino-acid racemase activity catalytic activity	catabolic process amino-acid betaine catabolic process modified amino acid metabolic process metabolic process cellular process modified amino acid catabolic process amino-acid betaine metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G, H	IPR034593	D-galactonate dehydratase DgoD-like	Family
A, B, C, D, E A, B, C, D, E, F, G, H	IPR034622	4R-hydroxyproline betaine 2-epimerase	Family
A, B, C, D, E A, B, C, D, E, F, G, H	IPR013341	Mandelate racemase-like, N-terminal domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H	IPR029017	Enolase-like, N-terminal	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H	IPR036849	Enolase-like, C-terminal domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H	IPR013342	Mandelate racemase-like, C-terminal domain	Domain

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	4-hydroxyproline betaine 2-epimerase M-CSA #940	Catalyses the 2-epimerisation of trans-4-hydroxy-L-proline betaine (tHyp-B) to cis-4-hydroxy-D-proline betaine (cHyp-B). These enzymes are involved in a catabolic pathway that degrades tHyp-B to alpha-ketoglutarate. This pathway would permit the utilisation of tHyp-B as a carbon and nitrogen source in the absence of osmotic stress, since tHyp-B functions as an osmolyte and is not catabolised when it is needed as osmoprotectant. Can also catalyse the racemisation of L-proline betaine.	Defined by 6 residues: LYS:A-172 [auth A-163]ASP:A-202 [auth A-193]GLU:A-227 [auth A-218]ASP:A-250 [auth A-241]LYS:A-274 [auth A-265]TRP:A-329 [auth A-320] \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 5.1.1.22 (UniProt) Search M-CSA Motif + EC 5.1.1.22