1HPL

HORSE PANCREATIC LIPASE. THE CRYSTAL STRUCTURE AT 2.3 ANGSTROMS RESOLUTION

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
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)
A	d1hpla1	All beta proteins	Lipase/lipooxygenase domain (PLAT/LH2 domain)	Lipase/lipooxygenase domain (PLAT/LH2 domain)	Colipase-binding domain	Pancreatic lipase, C-terminal domain	horse (Equus caballus ) [TaxId: 9796 ],	SCOPe (2.08)
A	d1hpla2	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	Pancreatic lipase, N-terminal domain	Pancreatic lipase, N-terminal domain	horse (Equus caballus ) [TaxId: 9796 ],	SCOPe (2.08)
B	d1hplb1	All beta proteins	Lipase/lipooxygenase domain (PLAT/LH2 domain)	Lipase/lipooxygenase domain (PLAT/LH2 domain)	Colipase-binding domain	Pancreatic lipase, C-terminal domain	horse (Equus caballus ) [TaxId: 9796 ],	SCOPe (2.08)
B	d1hplb2	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	Pancreatic lipase, N-terminal domain	Pancreatic lipase, N-terminal domain	horse (Equus caballus ) [TaxId: 9796 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Pancreatic lipase, N-terminal domain	8020250	4000743	SCOP2 (2022-06-29)
A	SCOP2 Family	Colipase-binding domain	8028698	4002394	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	alpha/beta-Hydrolases	8032630	3000102	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Lipase/lipooxygenase domain (PLAT/LH2 domain)	8041077	3001168	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Lipase/lipooxygenase domain (PLAT/LH2 domain)	8041077	3001168	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	alpha/beta-Hydrolases	8032630	3000102	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	PLAT	e1hplA1	A: beta sandwiches	X: jelly-roll	H: Lipase/lipooxygenase domain (PLAT/LH2 domain) (From Topology)	T: Lipase/lipooxygenase domain (PLAT/LH2 domain)	F: PLAT	ECOD (1.6)
A	Lipase	e1hplA2	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases (From Topology)	H: alpha/beta-Hydrolases (From Topology)	T: alpha/beta-Hydrolases	F: Lipase	ECOD (1.6)
B	PLAT	e1hplB1	A: beta sandwiches	X: jelly-roll	H: Lipase/lipooxygenase domain (PLAT/LH2 domain) (From Topology)	T: Lipase/lipooxygenase domain (PLAT/LH2 domain)	F: PLAT	ECOD (1.6)
B	Lipase	e1hplB2	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases (From Topology)	H: alpha/beta-Hydrolases (From Topology)	T: alpha/beta-Hydrolases	F: Lipase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1820	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Alpha/Beta hydrolase fold, catalytic domain	CATH (4.3.0)
A	2.60.60.20	Mainly Beta	Sandwich	Lipoxygenase-1	PLAT/LH2 domain	CATH (4.3.0)
B	3.40.50.1820	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Alpha/Beta hydrolase fold, catalytic domain	CATH (4.3.0)
B	2.60.60.20	Mainly Beta	Sandwich	Lipoxygenase-1	PLAT/LH2 domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00151	Lipase (Lipase)	Lipase	-	Domain
A, B	PF01477	PLAT/LH2 domain (PLAT)	PLAT/LH2 domain	This domain is found in a variety of membrane or lipid associated proteins. It is called the PLAT (Polycystin-1, Lipoxygenase, Alpha-Toxin) domain or LH2 (Lipoxygenase homology) domain. The known structure of pancreatic lipase shows this domain bind ...	This domain is found in a variety of membrane or lipid associated proteins. It is called the PLAT (Polycystin-1, Lipoxygenase, Alpha-Toxin) domain or LH2 (Lipoxygenase homology) domain. The known structure of pancreatic lipase shows this domain binds to procolipase Pfam:PF01114, which mediates membrane association. So it appears possible that this domain mediates membrane attachment via other protein binding partners. The structure of this domain is known for many members of the family and is composed of a beta sandwich.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	LIPASE	all-trans-retinyl-palmitate hydrolase, all-trans-retinol forming activity retinyl-palmitate esterase activity hydrolase activity, acting on ester bonds carboxylic ester hydrolase activity hydrolase activity catalytic activity triacylglycerol lipase activity lipase activity cation binding ion binding binding metal ion binding small molecule binding	lipid catabolic process catabolic process metabolic process cellular process primary metabolic process lipid metabolic process	cellular anatomical structure extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR002331	Pancreatic lipase	Family
A, B	IPR033906	Lipase, N-terminal	Domain
A, B	IPR016272	Lipase, LIPH-type	Family
A, B	IPR000734	Triacylglycerol lipase family	Family
A, B	IPR036392	PLAT/LH2 domain superfamily	Homologous Superfamily
A, B	IPR029058	Alpha/Beta hydrolase fold	Homologous Superfamily
A, B	IPR001024	PLAT/LH2 domain	Domain
A, B	IPR013818	Lipase	Domain

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Monotopic/peripheral	Alpha/Beta monotopic/peripheral	Alpha/beta-hydrolases	Pancreatic lipase-related

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

Chains	Enzyme Name	Description	Catalytic Residues
A	triacylglycerol lipase (pancreatic) M-CSA #218	Pancreatic lipase from Equus caballus catalyses the conversion of triacylglycerol to 2-monoacylglycerol and free fatty acids. This occurs in the intestine and plays a key role in dietary fat digestion. This is important as it is converting an insoluble substrate into soluble products.	Defined by 5 residues: PHE:A-78 [auth A-77]SER:A-153 [auth A-152]LEU:A-154 [auth A-153]ASP:A-177 [auth A-176]HIS:A-264 [auth A-263] \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.1.1.3 (PDB Primary Data) Search M-CSA Motif + EC 3.1.1.3

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.