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(-) Description

Authors :  C. E. Bell, R. Rajan
Date :  08 Oct 04  (Deposition) - 21 Dec 04  (Release) - 15 Feb 12  (Revision)
Resolution :  2.50
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (6x)
Keywords :  Recombination, Radioresistance, Dna-Repair, Atpase, Dna-Binding Protein, Dna Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  R. Rajan, C. E. Bell
Crystal Structure Of Reca From Deinococcus Radiodurans: Insights Into The Structural Basis Of Extreme Radioresistance.
J. Mol. Biol. V. 344 951 2004
PubMed-ID: 15544805  |  Reference-DOI: 10.1016/J.JMB.2004.09.087

(-) Compounds

Molecule 1 - RECA PROTEIN
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET-14B
    Expression System StrainBL21-AI
    Expression System Taxid562
    Expression System Vector TypePLASMID
    Organism Taxid1299

 Structural Features

(-) Chains, Units

Asymmetric Unit A
Biological Unit 1 (6x)A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
Biological Unit 1 (1, 6)
No.NameCountTypeFull Name

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
1AC1SOFTWAREGLU A:80 , SER A:81 , GLY A:82 , GLY A:83 , LYS A:84 , THR A:85 , THR A:86 , ASP A:112 , TYR A:115 , GLN A:206 , LYS A:239 , TYR A:277 , GLY A:278BINDING SITE FOR RESIDUE AGS A 400

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1XP8)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric Unit
1Asp A:156 -Ser A:157

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (1, 1)

Asymmetric Unit (1, 1)
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_RECA_DEIRA_001 *G224SRECA_DEIRA  ---  ---AG224S
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (1, 6)
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_RECA_DEIRA_001 *G224SRECA_DEIRA  ---  ---AG224S
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (3, 3)

Asymmetric Unit (3, 3)
1RECA_2PS50162 RecA family profile 1.RECA_DEIRA48-207  1A:48-207
2RECA_3PS50163 RecA family profile 2.RECA_DEIRA212-286  1A:223-286
3RECA_1PS00321 recA signature.RECA_DEIRA226-234  1A:226-234
Biological Unit 1 (3, 18)
1RECA_2PS50162 RecA family profile 1.RECA_DEIRA48-207  6A:48-207
2RECA_3PS50163 RecA family profile 2.RECA_DEIRA212-286  6A:223-286
3RECA_1PS00321 recA signature.RECA_DEIRA226-234  6A:226-234

(-) Exons   (0, 0)

(no "Exon" information available for 1XP8)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
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  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:298
 aligned with RECA_DEIRA | P42443 from UniProtKB/Swiss-Prot  Length:363

    Alignment length:327
                                    24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       
               SCOP domains d1xp8a1 A:15-282 RecA protein, ATPase-domain                                                                                                                                                                                                                                d1xp8a2 A:283-341 RecA protein, C-terminal domain           SCOP domains
               CATH domains ------------------------1xp8A01 A:39-281 P-loop containing nucleotide triphosphate hydrolases                                                                                                                                                                              1xp8A02 A:282-341 Rec A Protein, domain 2                    CATH domains
               Pfam domains -----RecA-1xp8A01 A:20-341                                                                                                                                                                                                                                                                                                              Pfam domains
         Sec.struct. author Sec.struct. author
                 SAPs(SNPs) -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------S--------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ---------------------------------RECA_2  PDB: A:48-207 UniProt: 48-207                                                                                                                           ----RECA_3  PDB: A:223-286 UniProt: 212-286                                    ------------------------------------------------------- PROSITE (1)
                PROSITE (2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------RECA_1   ----------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                                    24        34        44        54        64        74        84        94       104       114       124       134       144       154       164  |      - |     184       194       204  |      -       224       234       244      |254       264       274       284       294       304       314       324       334       
                                                                                                                                                                                  167      176                            207             223                  244    251                                                                                          

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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  (2, 2)

Asymmetric Unit

(-) CATH Domains  (2, 2)

Asymmetric Unit
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 1)

Asymmetric Unit

(-) Gene Ontology  (22, 22)

Asymmetric Unit(hide GO term definitions)
Chain A   (RECA_DEIRA | P42443)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0008094    DNA-dependent ATPase activity    Catalysis of the reaction: ATP + H2O = ADP + phosphate; this reaction requires the presence of single- or double-stranded DNA, and it drives another reaction.
    GO:0003684    damaged DNA binding    Interacting selectively and non-covalently with damaged DNA.
    GO:0003690    double-stranded DNA binding    Interacting selectively and non-covalently with double-stranded DNA.
    GO:0004520    endodeoxyribonuclease activity    Catalysis of the hydrolysis of ester linkages within deoxyribonucleic acid by creating internal breaks.
    GO:0000400    four-way junction DNA binding    Interacting selectively and non-covalently with DNA containing four-way junctions, also known as Holliday junctions, a structure where two DNA double strands are held together by reciprocal exchange of two of the four strands, one strand each from the two original helices.
    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.
    GO:0000150    recombinase activity    Catalysis of the identification and base-pairing of homologous sequences between single-stranded DNA and double-stranded DNA.
    GO:0003697    single-stranded DNA binding    Interacting selectively and non-covalently with single-stranded DNA.
biological process
    GO:0006259    DNA metabolic process    Any cellular metabolic process involving deoxyribonucleic acid. This is one of the two main types of nucleic acid, consisting of a long, unbranched macromolecule formed from one, or more commonly, two, strands of linked deoxyribonucleotides.
    GO:0000730    DNA recombinase assembly    The aggregation, arrangement and bonding together of strand exchange proteins (recombinases) into higher order oligomers on single-stranded DNA.
    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:0009432    SOS response    An error-prone process for repairing damaged microbial DNA.
    GO:0006974    cellular response to DNA damage stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating damage to its DNA from environmental insults or errors during metabolism.
    GO:0006302    double-strand break repair    The repair of double-strand breaks in DNA via homologous and nonhomologous mechanisms to reform a continuous DNA helix.
    GO:0006312    mitotic recombination    The exchange, reciprocal or nonreciprocal, of genetic material between one DNA molecule and a homologous region of DNA that occurs during mitotic cell cycles.
    GO:0010212    response to ionizing radiation    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a ionizing radiation stimulus. Ionizing radiation is radiation with sufficient energy to remove electrons from atoms and may arise from spontaneous decay of unstable isotopes, resulting in alpha and beta particles and gamma rays. Ionizing radiation also includes X-rays.
    GO:0042148    strand invasion    The process in which the nucleoprotein complex (composed of the broken single-strand DNA and the recombinase) searches and identifies a region of homology in intact duplex DNA. The broken single-strand DNA displaces the like strand and forms Watson-Crick base pairs with its complement, forming a duplex in which each strand is from one of the two recombining DNA molecules.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.


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