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(-) Description

Authors :  J. L. Keck, M. P. Killoran
Date :  09 Oct 07  (Deposition) - 22 Apr 08  (Release) - 13 Jul 11  (Revision)
Resolution :  1.10
Chains :  Asym./Biol. Unit :  A
Keywords :  Hrdc, Recq, Helicase, D. Radiodurans, Atp-Binding, Hydrolase, Nucleotide-Binding (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  M. P. Killoran, J. L. Keck
Structure And Function Of The Regulatory C-Terminal Hrdc Domain From Deinococcus Radiodurans Recq.
Nucleic Acids Res. V. 36 3139 2008
PubMed-ID: 18411208  |  Reference-DOI: 10.1093/NAR/GKN143

(-) Compounds

    Expression SystemESCHERICHIA COLI BL21(DE3)
    Expression System StrainBL21 (DE3)
    Expression System Taxid469008
    Expression System Vector TypePET
    Organism Taxid243230

 Structural Features

(-) Chains, Units

Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 2)

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
1AC1SOFTWAREGLU A:764 , LYS A:767 , LYS A:805 , ARG A:806 , HOH A:848 , HOH A:868 , HOH A:872 , HOH A:889 , HOH A:908BINDING SITE FOR RESIDUE PO4 A 1

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2RHF)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2RHF)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2RHF)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2RHF)

(-) Exons   (0, 0)

(no "Exon" information available for 2RHF)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain A from PDB  Type:PROTEIN  Length:76
 aligned with Q9RUU2_DEIRA | Q9RUU2 from UniProtKB/TrEMBL  Length:824

    Alignment length:76
                                   758       768       778       788       798       808       818      
               SCOP domains ---------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------- CATH domains
               Pfam domains --HRDC-2rhfA01 A:751-818                                              ------ Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhh..hhhhhh.....hhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------- Transcript
                                   758       768       778       788       798       808       818      

   Legend:   → Mismatch (orange background)
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  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 2RHF)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2RHF)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit

(-) Gene Ontology  (22, 22)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (Q9RUU2_DEIRA | Q9RUU2)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0043140    ATP-dependent 3'-5' DNA helicase activity    Catalysis of the reaction: ATP + H2O = ADP + phosphate; drives the unwinding of the DNA helix in the direction 3' to 5'.
    GO:0004003    ATP-dependent DNA helicase activity    Catalysis of the reaction: ATP + H2O = ADP + phosphate; this reaction drives the unwinding of the DNA helix.
    GO:0008026    ATP-dependent helicase activity    Catalysis of the reaction: ATP + H2O = ADP + phosphate, to drive the unwinding of a DNA or RNA helix.
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0009378    four-way junction helicase activity    Catalysis of the unwinding of the DNA helix of DNA containing four-way junctions, including Holliday junctions.
    GO:0004386    helicase activity    Catalysis of the reaction: NTP + H2O = NDP + phosphate, to drive the unwinding of a DNA or RNA helix.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0003676    nucleic acid binding    Interacting selectively and non-covalently with any nucleic acid.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
biological process
    GO:0032508    DNA duplex unwinding    The process in which interchain hydrogen bonds between two strands of DNA are broken or 'melted', generating a region of unpaired single strands.
    GO:0006310    DNA recombination    Any process in which a new genotype is formed by reassortment of genes resulting in gene combinations different from those that were present in the parents. In eukaryotes genetic recombination can occur by chromosome assortment, intrachromosomal recombination, or nonreciprocal interchromosomal recombination. Intrachromosomal recombination occurs by crossing over. In bacteria it may occur by genetic transformation, conjugation, transduction, or F-duction.
    GO:0006281    DNA repair    The process of restoring DNA after damage. Genomes are subject to damage by chemical and physical agents in the environment (e.g. UV and ionizing radiations, chemical mutagens, fungal and bacterial toxins, etc.) and by free radicals or alkylating agents endogenously generated in metabolism. DNA is also damaged because of errors during its replication. A variety of different DNA repair pathways have been reported that include direct reversal, base excision repair, nucleotide excision repair, photoreactivation, bypass, double-strand break repair pathway, and mismatch repair pathway.
    GO:0006260    DNA replication    The cellular metabolic process in which a cell duplicates one or more molecules of DNA. DNA replication begins when specific sequences, known as origins of replication, are recognized and bound by initiation proteins, and ends when the original DNA molecule has been completely duplicated and the copies topologically separated. The unit of replication usually corresponds to the genome of the cell, an organelle, or a virus. The template for replication can either be an existing DNA molecule or RNA.
    GO:0009432    SOS response    An error-prone process for repairing damaged microbial DNA.
    GO:0044237    cellular metabolic process    The chemical reactions and pathways by which individual cells transform chemical substances.
cellular component
    GO:0043590    bacterial nucleoid    The region of a bacterial cell to which the DNA is confined.
    GO:0005694    chromosome    A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005622    intracellular    The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.


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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

        Q9RUU2_DEIRA | Q9RUU22ma1 4q47 4q48

(-) Related Entries Specified in the PDB File

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