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3Q40

Sulphur SAD structure solution of proteinase K grown in SO4-less solution.

Functional Information from GO Data
ChainGOidnamespacecontents
A0004252molecular_functionserine-type endopeptidase activity
A0006508biological_processproteolysis
A0008236molecular_functionserine-type peptidase activity
Functional Information from PDB Data
site_idAC1
Number of Residues7
DetailsBINDING SITE FOR RESIDUE CA A 280
ChainResidue
APRO175
AVAL177
AASP200
AHOH349
AHOH375
AHOH389
AHOH488

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 281
ChainResidue
AHOH448
AHOH622
AHOH671
AHOH675
ATHR16
AASP260

site_idAC3
Number of Residues8
DetailsBINDING SITE FOR RESIDUE NO3 A 282
ChainResidue
AMET55
AVAL56
ALYS57
ATHR58
ASER63
AHOH411
AHOH434
AHOH526

site_idAC4
Number of Residues7
DetailsBINDING SITE FOR RESIDUE NO3 A 283
ChainResidue
AARG64
AASP165
AARG167
AASN168
AGLY214
AHOH412
AHOH510

site_idAC5
Number of Residues8
DetailsBINDING SITE FOR RESIDUE NO3 A 284
ChainResidue
AASP184
ATYR186
AARG188
ATHR244
AHOH422
AHOH455
AHOH502
AHOH618

site_idAC6
Number of Residues5
DetailsBINDING SITE FOR RESIDUE NO3 A 285
ChainResidue
AHIS69
ATRP212
AHOH311
AHOH399
AHOH650

site_idAC7
Number of Residues7
DetailsBINDING SITE FOR RESIDUE NO3 A 286
ChainResidue
ASER132
ALEU133
AGLY134
AALA158
AASN161
ASER224
AHOH560

site_idAC8
Number of Residues8
DetailsBINDING SITE FOR RESIDUE NO3 A 287
ChainResidue
ALEU96
AGLY102
ATYR104
AILE107
ALEU133
AGLY134
AHOH384
AHOH407

Functional Information from PROSITE/UniProt
site_idPS00136
Number of Residues12
DetailsSUBTILASE_ASP Serine proteases, subtilase family, aspartic acid active site. VYVIDTGIeasH
ChainResidueDetails
AVAL35-HIS46

site_idPS00137
Number of Residues11
DetailsSUBTILASE_HIS Serine proteases, subtilase family, histidine active site. HGThCAGtVGS
ChainResidueDetails
AHIS69-SER79

site_idPS00138
Number of Residues11
DetailsSUBTILASE_SER Serine proteases, subtilase family, serine active site. GTSmAtPhVAG
ChainResidueDetails
AGLY222-GLY232

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues272
DetailsDomain: {"description":"Peptidase S8","evidences":[{"source":"PROSITE-ProRule","id":"PRU01240","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues3
DetailsActive site: {"description":"Charge relay system","evidences":[{"source":"PROSITE-ProRule","id":"PRU01240","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues5
DetailsBinding site: {}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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