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3L33

Human mesotrypsin complexed with amyloid precursor protein inhibitor(APPI)

Functional Information from GO Data
ChainGOidnamespacecontents
A0004252molecular_functionserine-type endopeptidase activity
A0006508biological_processproteolysis
B0004252molecular_functionserine-type endopeptidase activity
B0006508biological_processproteolysis
C0004252molecular_functionserine-type endopeptidase activity
C0006508biological_processproteolysis
D0004252molecular_functionserine-type endopeptidase activity
D0006508biological_processproteolysis
E0004867molecular_functionserine-type endopeptidase inhibitor activity
F0004867molecular_functionserine-type endopeptidase inhibitor activity
G0004867molecular_functionserine-type endopeptidase inhibitor activity
H0004867molecular_functionserine-type endopeptidase inhibitor activity
Functional Information from PDB Data
site_idAC1
Number of Residues2
DetailsBINDING SITE FOR RESIDUE FMT A 1
ChainResidue
ALYS230
AHOH350

site_idAC2
Number of Residues3
DetailsBINDING SITE FOR RESIDUE FMT A 2
ChainResidue
AGLU70
AILE73
AHOH315

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE FMT A 3
ChainResidue
AASP236
ATRP237
AFMT5
AASN233
ATYR234
AVAL235

site_idAC4
Number of Residues1
DetailsBINDING SITE FOR RESIDUE FMT A 4
ChainResidue
ALYS222

site_idAC5
Number of Residues1
DetailsBINDING SITE FOR RESIDUE FMT A 5
ChainResidue
AFMT3

site_idAC6
Number of Residues7
DetailsBINDING SITE FOR RESIDUE FMT A 6
ChainResidue
ASER119
ATHR120
AHOH308
AHOH351
CILE121
CSER122
CGLY203

site_idAC7
Number of Residues5
DetailsBINDING SITE FOR RESIDUE FMT A 7
ChainResidue
AGLU24
ALEU27
AGLU70
AHIS71
AHOH306

site_idAC8
Number of Residues2
DetailsBINDING SITE FOR RESIDUE FMT A 8
ChainResidue
AASP97
AHOH355

site_idAC9
Number of Residues5
DetailsBINDING SITE FOR RESIDUE CA A 9
ChainResidue
AGLU70
AASN72
AVAL75
AGLU77
AGLU80

site_idBC1
Number of Residues2
DetailsBINDING SITE FOR RESIDUE FMT B 1
ChainResidue
BPRO129
BLYS230

site_idBC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE FMT B 3
ChainResidue
BFMT2
BLYS175
BHOH307
BHOH310

site_idBC3
Number of Residues2
DetailsBINDING SITE FOR RESIDUE FMT B 2
ChainResidue
BFMT3
BASP97

site_idBC4
Number of Residues3
DetailsBINDING SITE FOR RESIDUE FMT B 5
ChainResidue
BHIS91
BTRP237
CGLY174

site_idBC5
Number of Residues1
DetailsBINDING SITE FOR RESIDUE FMT B 4
ChainResidue
BASN223

site_idBC6
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA B 6
ChainResidue
BGLU70
BASN72
BVAL75
BGLU77
BGLU80
BHOH349

site_idBC7
Number of Residues1
DetailsBINDING SITE FOR RESIDUE FMT C 1
ChainResidue
CLYS230

site_idBC8
Number of Residues3
DetailsBINDING SITE FOR RESIDUE FMT C 2
ChainResidue
BASP236
CLYS169
CILE176

site_idBC9
Number of Residues5
DetailsBINDING SITE FOR RESIDUE CA C 3
ChainResidue
CGLU70
CASN72
CVAL75
CGLU80
CHOH303

site_idCC1
Number of Residues2
DetailsBINDING SITE FOR RESIDUE FMT D 1
ChainResidue
DLEU163
DHOH300

site_idCC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE CA D 2
ChainResidue
DGLU70
DASN72
DVAL75
DGLU77
DGLU80

site_idCC3
Number of Residues3
DetailsBINDING SITE FOR RESIDUE FMT E 56
ChainResidue
EASP24
ETHR26
EHOH313

site_idCC4
Number of Residues1
DetailsBINDING SITE FOR RESIDUE FMT F 56
ChainResidue
BHIS91

site_idCC5
Number of Residues2
DetailsBINDING SITE FOR RESIDUE FMT G 56
ChainResidue
GASP24
GTHR26

Functional Information from PROSITE/UniProt
site_idPS00134
Number of Residues6
DetailsTRYPSIN_HIS Serine proteases, trypsin family, histidine active site. VSAAHC
ChainResidueDetails
AVAL53-CYS58

site_idPS00280
Number of Residues19
DetailsBPTI_KUNITZ_1 Pancreatic trypsin inhibitor (Kunitz) family signature. FfyGGCggnrnnFdteeyC
ChainResidueDetails
EPHE33-CYS51

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues880
DetailsDomain: {"description":"Peptidase S1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00274","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues12
DetailsActive site: {"description":"Charge relay system","evidences":[{"source":"PROSITE-ProRule","id":"PRU00274","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"27810896","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues12
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"11827488","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"25301953","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"27810896","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1H4W","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3L33","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3L3T","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3P92","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3P95","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4U30","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4U32","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"5JBT","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"5TP0","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"11827488","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"25301953","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"27810896","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1H4W","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3L33","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3L3T","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3P92","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3P95","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4U30","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4U32","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"5JBT","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"11827488","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"25301953","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"27810896","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1H4W","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3L33","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3L3T","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3P92","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3P95","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4U32","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"5JBT","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"5TP0","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues4
DetailsSite: {"description":"Required for specificity","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues4
DetailsModified residue: {"description":"Sulfotyrosine","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues200
DetailsDomain: {"description":"BPTI/Kunitz inhibitor","evidences":[{"source":"PROSITE-ProRule","id":"PRU00031","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues4
DetailsSite: {"description":"Reactive bond"}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues4
DetailsModified residue: {"description":"Sulfotyrosine","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

243531

PDB entries from 2025-10-22

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