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5I9O

Crystal structure of Staphylococcal nuclease variant Delta+PHS L36K L103K at cryogenic temperature

Functional Information from GO Data
ChainGOidnamespacecontents
A0003676molecular_functionnucleic acid binding
A0004518molecular_functionnuclease activity
B0003676molecular_functionnucleic acid binding
B0004518molecular_functionnuclease activity
Functional Information from PDB Data
site_idAC1
Number of Residues6
Detailsbinding site for residue CA B 201
ChainResidue
BASP21
BASP40
BGLU43
BTHP202
BHOH319
BHOH356

site_idAC2
Number of Residues22
Detailsbinding site for residue THP B 202
ChainResidue
BTYR85
BARG87
BLEU89
BTYR113
BTYR115
BLYS127
BCA201
BHOH303
BHOH308
BHOH312
BHOH320
BHOH330
BHOH331
BHOH340
BHOH344
BHOH354
BHOH364
BHOH369
BHOH373
BARG35
BASP40
BLYS84

site_idAC3
Number of Residues7
Detailsbinding site for residue CA A 201
ChainResidue
AASP21
AARG35
AASP40
AGLU43
ATHP202
AHOH307
AHOH314

site_idAC4
Number of Residues19
Detailsbinding site for residue THP A 202
ChainResidue
AARG35
ALYS84
ATYR85
AARG87
ALEU89
ATYR113
ATYR115
ALYS127
ACA201
AHOH304
AHOH307
AHOH311
AHOH318
AHOH323
AHOH334
AHOH337
AHOH339
AHOH340
AHOH365

Functional Information from PROSITE/UniProt
site_idPS01284
Number of Residues11
DetailsTNASE_2 Thermonuclease family signature 2. DKYGRgLAyIY
ChainResidueDetails
BASP83-TYR93

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues32
DetailsCompositional bias: {"description":"Basic and acidic residues","evidences":[{"source":"SAM","id":"MobiDB-lite","evidenceCode":"ECO:0000256"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues6
DetailsActive site: {"evidences":[{"source":"PubMed","id":"288045","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues6
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

site_idMCSA2
Number of Residues6
DetailsM-CSA 165
ChainResidueDetails
BASP21metal ligand
BARG35electrostatic stabiliser, hydrogen bond donor
BASP40metal ligand
BTHR41metal ligand
BGLU43hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor
BARG87electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor

248636

PDB entries from 2026-02-04

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