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3P75

Crystal structure of Staphylococcal nuclease variant Delta+PHS V104D at cryogenic temperature

Functional Information from GO Data
ChainGOidnamespacecontents
A0003676molecular_functionnucleic acid binding
A0004518molecular_functionnuclease activity
Functional Information from PDB Data
site_idAC1
Number of Residues7
DetailsBINDING SITE FOR RESIDUE CA A 1
ChainResidue
AASP21
AASP40
ATHR41
AHOH162
AHOH163
AHOH177
AHOH191

site_idAC2
Number of Residues19
DetailsBINDING SITE FOR RESIDUE THP A 142
ChainResidue
AARG35
ALEU36
AASP83
ALYS84
ATYR85
AARG87
ALEU89
ATYR113
ALYS127
ACA143
AHOH147
AHOH162
AHOH165
AHOH169
AHOH177
AHOH183
AHOH188
AASP21
ATHR22

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 143
ChainResidue
AASP19
AASP21
ATHR22
ATHP142
AHOH166
AHOH177

Functional Information from PROSITE/UniProt
site_idPS01123
Number of Residues25
DetailsTNASE_1 Thermonuclease family signature 1. DGDTVkLmykgqpmtf.RLllVDtPE
ChainResidueDetails
AASP19-GLU43

site_idPS01284
Number of Residues11
DetailsTNASE_2 Thermonuclease family signature 2. DKYGRgLAyIY
ChainResidueDetails
AASP83-TYR93

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues16
DetailsCompositional bias: {"description":"Basic and acidic residues","evidences":[{"source":"SAM","id":"MobiDB-lite","evidenceCode":"ECO:0000256"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues3
DetailsActive site: {"evidences":[{"source":"PubMed","id":"288045","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues3
DetailsBinding site: {}
ChainResidueDetails

Catalytic Information from CSA
site_idMCSA1
Number of Residues6
DetailsM-CSA 165
ChainResidueDetails
AASP21metal ligand
AARG35electrostatic stabiliser, hydrogen bond donor
AASP40metal ligand
ATHR41metal ligand
AGLU43hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor
AARG87electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor

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PDB entries from 2025-11-05

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