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1AQL

CRYSTAL STRUCTURE OF BOVINE BILE-SALT ACTIVATED LIPASE COMPLEXED WITH TAUROCHOLATE

Functional Information from GO Data
ChainGOidnamespacecontents
A0004771molecular_functionsterol ester esterase activity
A0004806molecular_functiontriacylglycerol lipase activity
A0005576cellular_componentextracellular region
A0005737cellular_componentcytoplasm
A0006629biological_processlipid metabolic process
A0008126molecular_functionacetylesterase activity
A0016020cellular_componentmembrane
A0016042biological_processlipid catabolic process
A0016787molecular_functionhydrolase activity
A0030157biological_processpancreatic juice secretion
A0042572biological_processretinol metabolic process
A0046514biological_processceramide catabolic process
A0050253molecular_functionretinyl-palmitate esterase activity
A0052689molecular_functioncarboxylic ester hydrolase activity
B0004771molecular_functionsterol ester esterase activity
B0004806molecular_functiontriacylglycerol lipase activity
B0005576cellular_componentextracellular region
B0005737cellular_componentcytoplasm
B0006629biological_processlipid metabolic process
B0008126molecular_functionacetylesterase activity
B0016020cellular_componentmembrane
B0016042biological_processlipid catabolic process
B0016787molecular_functionhydrolase activity
B0030157biological_processpancreatic juice secretion
B0042572biological_processretinol metabolic process
B0046514biological_processceramide catabolic process
B0050253molecular_functionretinyl-palmitate esterase activity
B0052689molecular_functioncarboxylic ester hydrolase activity
Functional Information from PROSITE/UniProt
site_idPS00122
Number of Residues16
DetailsCARBOXYLESTERASE_B_1 Carboxylesterases type-B serine active site. FGGdpdnItLfGeSAG
ChainResidueDetails
APHE181-GLY196

site_idPS00941
Number of Residues11
DetailsCARBOXYLESTERASE_B_2 Carboxylesterases type-B signature 2. EDCLYLNIWvP
ChainResidueDetails
AGLU78-PRO88

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsACT_SITE: Acyl-ester intermediate
ChainResidueDetails
ASER194
BSER194

site_idSWS_FT_FI2
Number of Residues4
DetailsACT_SITE: Charge relay system
ChainResidueDetails
AASP320
AHIS435
BASP320
BHIS435

site_idSWS_FT_FI3
Number of Residues4
DetailsCARBOHYD: N-linked (GlcNAc...) asparagine
ChainResidueDetails
AASN187
AASN361
BASN187
BASN361

Catalytic Information from CSA
site_idCSA1
Number of Residues6
Detailsa catalytic site defined by CSA, PubMed 9331420
ChainResidueDetails
ASER194
AHIS435
AASP320
AGLY107
AALA108
AALA195

site_idMCSA1
Number of Residues6
DetailsM-CSA 401
ChainResidueDetails
AGLY107electrostatic stabiliser
AALA108electrostatic stabiliser
ASER194covalent catalysis
AALA195electrostatic stabiliser
AASP320activator, electrostatic stabiliser
AHIS435proton shuttle (general acid/base)

site_idMCSA2
Number of Residues6
DetailsM-CSA 401
ChainResidueDetails
BGLY107electrostatic stabiliser
BALA108electrostatic stabiliser
BSER194covalent catalysis
BALA195electrostatic stabiliser
BASP320activator, electrostatic stabiliser
BHIS435proton shuttle (general acid/base)

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PDB entries from 2025-06-18

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