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(-) Description

Title :  HEXAMERIC REPLICATIVE DNA HELICASE REPA FROM PLASMID RSF1010 - CUBIC CRYSTAL STRUCTURE
 
Authors :  T. Niedenzu, W. Saenger
Date :  08 Aug 03  (Deposition) - 19 Sep 03  (Release) - 28 Jun 17  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.55
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (3x)
Keywords :  Dna Helicase, Atpase, Motor Protein, Transcription (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  G. Ziegelin, T. Niedenzu, R. Lurz, W. Saenger, E. Lanka
Hexameric Rsf1010 Helicase Repa: The Structural And Functional Importance Of Single Amino Acid Residues
Nucleic Acids Res. V. 31 5917 2003
PubMed-ID: 14530440  |  Reference-DOI: 10.1093/NAR/GKG790

(-) Compounds

Molecule 1 - REGULATORY PROTEIN REPA
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PTACREP-A
    Expression System Strain: XL1-BLUE
    Expression System Taxid: 562
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562
    Other Details: BROAD HOST RANGE PLASMID RSF1010

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (3x): AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric Unit (1, 2)
No.NameCountTypeFull Name
1SO42Ligand/IonSULFATE ION
Biological Unit 1 (1, 6)
No.NameCountTypeFull Name
1SO46Ligand/IonSULFATE ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARESER A:37 , GLY A:39 , GLY A:40 , ALA A:41 , GLY A:42 , LYS A:43 , SER A:44 , HIS A:179 , HOH A:2136 , HOH B:2193BINDING SITE FOR RESIDUE SO4 A 300
2AC2SOFTWAREARG A:207 , GLY B:40 , ALA B:41 , GLY B:42 , LYS B:43 , SER B:44 , HIS B:179 , HOH B:2208 , HOH B:2209BINDING SITE FOR RESIDUE SO4 B 300

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Asp A:140 -Thr A:141
2Asp B:140 -Thr B:141

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1OLO)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1OLO)

(-) Exons   (0, 0)

(no "Exon" information available for 1OLO)

(-) Sequences/Alignments

Asymmetric 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:249
 aligned with REPJ_ECOLX | P20356 from UniProtKB/Swiss-Prot  Length:279

    Alignment length:269
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261         
           REPJ_ECOLX     2 ATHKPINILEAFAAAPPPLDYVLPNMVAGTVGALVSPGGAGKSMLALQLAAQIAGGPDLLEVGELPTGPVIYLPAEDPPTAIHHRLHALGAHLSAEERQAVADGLLIQPLIGSLPNIMAPEWFDGLKRAAEGRRLMVLDTLRRFHIEEENASGPMAQVIGRMEAIAADTGCSIVFLHHASKGAAMMGAGDQQQASRGSSVLVDNIRWQSYLSSMTSAEAEEWGVDDDQRRFFVRFGVSKANYGAPFADRWFRRHDGGVLKPAVLERQRK 270
               SCOP domains d1oloa_ A: Hexameric replicative helicase repA                                                                                                                                                                                                                                SCOP domains
               CATH domains 1oloA00 A:2-270 P-loop containing nucleotide triphosphate hydrolases                                                                                                                                                                                                          CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......hhhhhhhh......eee..ee...eeeeee....hhhhhhhhhhhhhhh..............eeeee...hhhhhhhhhhhhhh..hhhhhhhhhhheee...........hhhhhhhhhhhhh...eeeeehhhhhh.....hhhhhhhhhhhhhhhhhhhh.eeeeeee.--------------------.......eeeeeee.hhhhhhhh..hhhhhh.eeeeeeee.........eeeee.hhh.eee........ Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1olo A   2 ATHKPINILEAFAAAPPPLDYVLPNMVAGTVGALVSPGGAGKSMLALQLAAQIAGGPDLLEVGELPTGPVIYLPAEDPPTAIHHRLHALGAHLSAEERQAVADGLLIQPLIGSLPNIMAPEWFDGLKRAAEGRRLMVLDTLRRFHIEEENASGPMAQVIGRMEAIAADTGCSIVFLHHA--------------------VLVDNIRWQSYLSSMTSAEAEEWGVDDDQRRFFVRFGVSKANYGAPFADRWFRRHDGGVLKPAVLERQRK 270
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171        |-         -       201       211       221       231       241       251       261         
                                                                                                                                                                                                            180                  201                                                                     


Chain B from PDB  Type:PROTEIN  Length:250
 aligned with REPJ_ECOLX | P20356 from UniProtKB/Swiss-Prot  Length:279

    Alignment length:270
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271
           REPJ_ECOLX     2 ATHKPINILEAFAAAPPPLDYVLPNMVAGTVGALVSPGGAGKSMLALQLAAQIAGGPDLLEVGELPTGPVIYLPAEDPPTAIHHRLHALGAHLSAEERQAVADGLLIQPLIGSLPNIMAPEWFDGLKRAAEGRRLMVLDTLRRFHIEEENASGPMAQVIGRMEAIAADTGCSIVFLHHASKGAAMMGAGDQQQASRGSSVLVDNIRWQSYLSSMTSAEAEEWGVDDDQRRFFVRFGVSKANYGAPFADRWFRRHDGGVLKPAVLERQRKS 271
               SCOP domains d1olob_ B: Hexameric replicative helicase repA                                                                                                                                                                                                                                 SCOP domains
               CATH domains 1oloB00 B:2-271 P-loop containing nucleotide triphosphate hydrolases                                                                                                                                                                                                           CATH domains
           Pfam domains (1) ---AAA_25-1oloB01 B:5-180                                                                                                                                                          ------------------------------------------------------------------------------------------- Pfam domains (1)
           Pfam domains (2) ---AAA_25-1oloB02 B:5-180                                                                                                                                                          ------------------------------------------------------------------------------------------- Pfam domains (2)
         Sec.struct. author ......hhhhhhhh......eee..ee...eeeeee....hhhhhhhhhhhhhh...............eeeee...hhhhhhhhhhhhhh..hhhhhhhhhhheee...........hhhhhhhhhhhhh...eeeeehhhhhh.....hhhhhhhhhhhhhhhhhhhh.eeeeeee.--------------------hhhhhh.eeeeeee.hhhhhh....hhhhhh.eeeeeeee.........eeeee.hhh.eee......... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1olo B   2 ATHKPINILEAFAAAPPPLDYVLPNMVAGTVGALVSPGGAGKSMLALQLAAQIAGGPDLLEVGELPTGPVIYLPAEDPPTAIHHRLHALGAHLSAEERQAVADGLLIQPLIGSLPNIMAPEWFDGLKRAAEGRRLMVLDTLRRFHIEEENASGPMAQVIGRMEAIAADTGCSIVFLHHA--------------------VLVDNIRWQSYLSSMTSAEAEEWGVDDDQRRFFVRFGVSKANYGAPFADRWFRRHDGGVLKPAVLERQRKS 271
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171        |-         -       201       211       221       231       241       251       261       271
                                                                                                                                                                                                            180                  201
   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  (1, 2)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 2)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 2)

Asymmetric Unit
(-)
Clan: P-loop_NTPase (1112)

(-) Gene Ontology  (3, 3)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (REPJ_ECOLX | P20356)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    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:0006276    plasmid maintenance    The maintenance of the integrity of extrachromosomal plasmid DNA; includes processes that ensure plasmids are retained in the daughter cells after cell division.

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 Related Entries

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

UniProtKB/Swiss-Prot
        REPJ_ECOLX | P20356: 1g8y 1nlf

(-) Related Entries Specified in the PDB File

1g8y CRYSTAL STRUCTURE OF THE HEXAMERIC REPLICATIVE HELICASE REPA OF PLASMID RSF1010
1nlf CRYSTAL STRUCTURE OF DNA HELICASE REPA IN COMPLEX WITH SULFATE AT 1.95 A RESOLUTION