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4R5Q

Crystal structure and nuclease activity of the CRISPR-associated Cas4 protein Pcal_0546 from Pyrobaculum calidifontis containing a [2Fe-2S] cluster

Replaces:  4ONB
Functional Information from GO Data
ChainGOidnamespacecontents
A0000014molecular_functionsingle-stranded DNA endonuclease activity
A0045145molecular_functionsingle-stranded DNA 5'-3' DNA exonuclease activity
A0051537molecular_function2 iron, 2 sulfur cluster binding
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG A 301
ChainResidue
AASP123
AGLU136
AILE137
AHIS146
AHOH407

site_idAC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE FES A 302
ChainResidue
ACYS209
ACYS64
AALA198
ACYS200
ACYS203

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"25200083","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"25200083","evidenceCode":"ECO:0000303"}]}
ChainResidueDetails

254587

PDB entries from 2026-06-03

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