1LPA

INTERFACIAL ACTIVATION OF THE LIPASE-PROCOLIPASE COMPLEX BY MIXED MICELLES REVEALED BY X-RAY CRYSTALLOGRAPHY

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
Pharos: Disease Associations
Membrane Protein Annotation: OPM

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1lpaa1	Small proteins	Knottins (small inhibitors, toxins, lectins)	Colipase-like	Colipase-like	(Pro)colipase	pig (Sus scrofa ) [TaxId: 9823 ],	SCOPe (2.08)
B	d1lpab1	All beta proteins	Lipase/lipooxygenase domain (PLAT/LH2 domain)	Lipase/lipooxygenase domain (PLAT/LH2 domain)	Colipase-binding domain	Pancreatic lipase, C-terminal domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1lpab2	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	Pancreatic lipase, N-terminal domain	Pancreatic lipase, N-terminal domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Colipase-like	8038249	3000406	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Colipase-like	8038250	3000406	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Lipase/lipooxygenase domain (PLAT/LH2 domain)	8041084	3001168	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	alpha/beta-Hydrolases	8032634	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	Colipase	e1lpaA1	A: few secondary structure elements	X: omega toxin-like	H: omega toxin-related	T: Colipase-like	F: Colipase	ECOD (1.6)
A	Colipase_C	e1lpaA2	A: few secondary structure elements	X: omega toxin-like	H: omega toxin-related	T: Colipase-like	F: Colipase_C	ECOD (1.6)
B	PLAT	e1lpaB1	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	e1lpaB2	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	2.10.80.10	Mainly Beta	Ribbon	Lipase, subunit A	Lipase, subunit A	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	PF02740	Colipase, C-terminal domain (Colipase_C)	Colipase, C-terminal domain	SCOP reports duplication of common fold with Colipase N-terminal domain.	Domain
B	PF00151	Lipase (Lipase)	Lipase	-	Domain
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	COLIPASE	protein binding binding enzyme binding lipase binding enzyme regulator activity enzyme activator activity molecular function activator activity molecular function regulator activity	lipid catabolic process catabolic process metabolic process cellular process primary metabolic process lipid metabolic process positive regulation of molecular function regulation of molecular function regulation of catalytic activity biological regulation positive regulation of catalytic activity response to nutrient levels response to stimulus response to food lipid catabolic process catabolic process metabolic process cellular process primary metabolic process lipid metabolic process positive regulation of molecular function regulation of molecular function regulation of catalytic activity biological regulation positive regulation of catalytic activity response to nutrient levels response to stimulus response to food response to chemical multicellular organismal process digestion	cellular anatomical structure extracellular region
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 lipase activity triacylglycerol 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 positive regulation of molecular function regulation of molecular function positive regulation of hydrolase activity regulation of catalytic activity regulation of hydrolase activity regulation of lipase activity biological regulation positive regulation of catalytic activity lipid catabolic process catabolic process metabolic process cellular process primary metabolic process lipid metabolic process positive regulation of molecular function regulation of molecular function positive regulation of hydrolase activity regulation of catalytic activity regulation of hydrolase activity regulation of lipase activity biological regulation positive regulation of catalytic activity positive regulation of lipase activity positive regulation of triglyceride lipase activity intestinal lipid absorption multicellular organismal process digestion system process intestinal absorption digestive system process intestinal cholesterol absorption lipid digestion	cellular anatomical structure extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001981	Colipase	Family
A	IPR047576	Colipase, chordates	Family
A	IPR017913	Colipase, N-terminal	Domain
A	IPR017914	Colipase, C-terminal	Domain
A	IPR017915	Colipase, conserved site	Conserved Site
B	IPR002331	Pancreatic lipase	Family
B	IPR033906	Lipase, N-terminal	Domain
B	IPR016272	Lipase, LIPH-type	Family
B	IPR000734	Triacylglycerol lipase family	Family
B	IPR036392	PLAT/LH2 domain superfamily	Homologous Superfamily
B	IPR029058	Alpha/Beta hydrolase fold	Homologous Superfamily
B	IPR001024	PLAT/LH2 domain	Domain
B	IPR013818	Lipase	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B	Pharos: P16233	pancreatic triacylglycerol lipase deficiency obesity disorder pancreatic colipase deficiency COLIPASE, CONGENITAL ABSENCE OF PANCREATIC pancreatic intraductal papillary-mucinous neoplasm pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia pancreatitis pancreatic intraductal papillary-mucinous carcinoma psoriasis

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

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.