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(-) Description

Title :  CRYSTAL STRUCTURE OF A PSYCHROTROPHIC RNASEHI VARIANT WITH SEXTUPLE THERMOSTABILIZING MUTATIONS
 
Authors :  C. Angkawidjaja, S. Kanaya
Date :  07 Aug 08  (Deposition) - 23 Jun 09  (Release) - 23 Jun 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.49
Chains :  Asym./Biol. Unit :  A,B,C,D
Keywords :  Hydrolase, Cytoplasm, Endonuclease, Magnesium, Metal- Binding, Nuclease (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  M. S. Rohman, T. Tadokoro, C. Angkawidjaja, Y. Abe, H. Matsumura, Y. Koga, K. Takano, S. Kanaya
Destabilization Of Psychrotrophic Rnase Hi In A Localized Fashion As Revealed By Mutational And X-Ray Crystallographic Analyses
Febs J. V. 276 603 2009
PubMed-ID: 19120449  |  Reference-DOI: 10.1111/J.1742-4658.2008.06811.X
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - RIBONUCLEASE HI
    ChainsA, B, C, D
    EC Number3.1.26.4
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET25B(+)
    Expression System StrainMIC2067(DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    MutationYES
    Organism ScientificSHEWANELLA ONEIDENSIS
    Organism Taxid70863
    StrainMR-1
    SynonymRNASE HI

 Structural Features

(-) Chains, Units

  1234
Asymmetric/Biological Unit ABCD

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 3)

Asymmetric/Biological Unit (1, 3)
No.NameCountTypeFull Name
1SO43Ligand/IonSULFATE ION

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETHR A:45 , ASN A:47 , LYS A:101 , ASN A:102 , HOH A:215 , ASN C:96BINDING SITE FOR RESIDUE SO4 A 159
2AC2SOFTWARETHR B:45 , ASN B:47 , LYS B:101 , ASN B:102 , HOH B:167BINDING SITE FOR RESIDUE SO4 B 159
3AC3SOFTWARESER B:95 , THR C:45 , ASN C:47 , LYS C:101 , ASN C:102 , HOH C:174BINDING SITE FOR RESIDUE SO4 C 159

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (5, 5)

Asymmetric/Biological Unit
No.Residues
1Asn A:18 -Pro A:19
2Asn B:18 -Pro B:19
3Asn C:18 -Pro C:19
4Asn D:18 -Pro D:19
5Gly D:153 -Tyr D:154

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 2)

Asymmetric/Biological Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1RNASE_HPS50879 RNase H domain profile.RNH_SHEON3-144
 
  2A:3-144
D:3-144

(-) Exons   (0, 0)

(no "Exon" information available for 2ZQB)

(-) 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:149
 aligned with RNH_SHEON | Q8EE30 from UniProtKB/Swiss-Prot  Length:158

    Alignment length:152
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152  
            RNH_SHEON     3 ELKLIHIFTDGSCLGNPGPGGYGIVMNYKGHTKEMSDGFSLTTNNRMELLAPIVALEALKEPCKIILTSDSQYMRQGIMTWIHGWKKKGWMTSNRTPVKNVDLWKRLDKAAQLHQIDWRWVKGHAGHAENERCDQLARAAAEANPTQIDTGY 154
               SCOP domains d2zqba_ A: automated matches                                                                                                                             SCOP domains
               CATH domains 2zqbA00 A:3-154  [code=3.30.420.10, no name defined]                                                                                                     CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeeeee.....eeeeeeeeeee..eeeeeeeeeeeehhhhhhhhhhhhhhhh....eeeeeee.hhhhhhhhhhhhhhhhh............hhhhhhhhhhhhh..eeeeee..---...hhhhhhhhhhhhhhh......... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE RNASE_H  PDB: A:3-144 UniProt: 3-144                                                                                                          ---------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2zqb A   3 ELKLIHIFTDGSCLGNPGPGGYGIVMKYKGHTKEMSGGFSLTTNNRMELLAPIVALEALKEPCKIILTSDSQYVRQGIMTWIHGWKKNGWMTSNGTPVKNVDLWKRLDKAAQLHQIDWRWVK---GHAENERCHQLARAAAEANPTQIDTGY 154
                                    12        22        32        42        52        62        72        82        92       102       112       122 |   | 132       142       152  
                                                                                                                                                   124 128                          

Chain B from PDB  Type:PROTEIN  Length:147
 aligned with RNH_SHEON | Q8EE30 from UniProtKB/Swiss-Prot  Length:158

    Alignment length:151
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153 
            RNH_SHEON     4 LKLIHIFTDGSCLGNPGPGGYGIVMNYKGHTKEMSDGFSLTTNNRMELLAPIVALEALKEPCKIILTSDSQYMRQGIMTWIHGWKKKGWMTSNRTPVKNVDLWKRLDKAAQLHQIDWRWVKGHAGHAENERCDQLARAAAEANPTQIDTGY 154
               SCOP domains d2zqbb_ B: automated matches                                                                                                                            SCOP domains
               CATH domains 2zqbB00 B:4-154  [code=3.30.420.10, no name defined]                                                                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeeeee....eeeeeeeeeee..eeeeeeeeeeeehhhhhhhhhhhhhhhh.....eeeeee.hhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhhh.eeeeee...----hhhhhhhhhhhhhhhh......... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE RNASE_H  PDB: - UniProt: 3-144                                                                                                               ---------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2zqb B   4 LKLIHIFTDGSCLGNPGPGGYGIVMKYKGHTKEMSGGFSLTTNNRMELLAPIVALEALKEPCKIILTSDSQYVRQGIMTWIHGWKKNGWMTSNGTPVKNVDLWKRLDKAAQLHQIDWRWVKG----AENERCHQLARAAAEANPTQIDTGY 154
                                    13        23        33        43        53        63        73        83        93       103       113       123 |    |133       143       153 
                                                                                                                                                   125  130                        

Chain C from PDB  Type:PROTEIN  Length:151
 aligned with RNH_SHEON | Q8EE30 from UniProtKB/Swiss-Prot  Length:158

    Alignment length:151
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153 
            RNH_SHEON     4 LKLIHIFTDGSCLGNPGPGGYGIVMNYKGHTKEMSDGFSLTTNNRMELLAPIVALEALKEPCKIILTSDSQYMRQGIMTWIHGWKKKGWMTSNRTPVKNVDLWKRLDKAAQLHQIDWRWVKGHAGHAENERCDQLARAAAEANPTQIDTGY 154
               SCOP domains d2zqbc_ C: automated matches                                                                                                                            SCOP domains
               CATH domains 2zqbC00 C:4-154  [code=3.30.420.10, no name defined]                                                                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeeeeeee.....eeeeeeeeeee..eeeeeeeeeeeehhhhhhhhhhhhhhhhh...eeeeeee.hhhhhhhhhhhhhhhhh............hhhhhhhhhhhhhhheeeeee......hhhhhhhhhhhhhhhh.......... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE RNASE_H  PDB: - UniProt: 3-144                                                                                                               ---------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2zqb C   4 LKLIHIFTDGSCLGNPGPGGYGIVMKYKGHTKEMSGGFSLTTNNRMELLAPIVALEALKEPCKIILTSDSQYVRQGIMTWIHGWKKNGWMTSNGTPVKNVDLWKRLDKAAQLHQIDWRWVKGHAGHAENERCHQLARAAAEANPTQIDTGY 154
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153 

Chain D from PDB  Type:PROTEIN  Length:152
 aligned with RNH_SHEON | Q8EE30 from UniProtKB/Swiss-Prot  Length:158

    Alignment length:152
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152  
            RNH_SHEON     3 ELKLIHIFTDGSCLGNPGPGGYGIVMNYKGHTKEMSDGFSLTTNNRMELLAPIVALEALKEPCKIILTSDSQYMRQGIMTWIHGWKKKGWMTSNRTPVKNVDLWKRLDKAAQLHQIDWRWVKGHAGHAENERCDQLARAAAEANPTQIDTGY 154
               SCOP domains d2zqbd_ D: automated matches                                                                                                                             SCOP domains
               CATH domains 2zqbD00 D:3-154  [code=3.30.420.10, no name defined]                                                                                                     CATH domains
           Pfam domains (1) --RNase_H-2zqbD01 D:5-144                                                                                                                     ---------- Pfam domains (1)
           Pfam domains (2) --RNase_H-2zqbD02 D:5-144                                                                                                                     ---------- Pfam domains (2)
           Pfam domains (3) --RNase_H-2zqbD03 D:5-144                                                                                                                     ---------- Pfam domains (3)
           Pfam domains (4) --RNase_H-2zqbD04 D:5-144                                                                                                                     ---------- Pfam domains (4)
         Sec.struct. author ...eeeeeeeeee....eeeeeeeeeee..eeeeeeeeeeeehhhhhhhhhhhhhhhh.....eeeeee.hhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhh..eeeeee......hhhhhhhhhhhhhhhh.......... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE RNASE_H  PDB: D:3-144 UniProt: 3-144                                                                                                          ---------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2zqb D   3 ELKLIHIFTDGSCLGNPGPGGYGIVMKYKGHTKEMSGGFSLTTNNRMELLAPIVALEALKEPCKIILTSDSQYVRQGIMTWIHGWKKNGWMTSNGTPVKNVDLWKRLDKAAQLHQIDWRWVKGHAGHAENERCHQLARAAAEANPTQIDTGY 154
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152  

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  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, 4)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 4)

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

(-) Pfam Domains  (1, 4)

Asymmetric/Biological Unit
(-)
Clan: RNase_H (288)

(-) Gene Ontology  (12, 12)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B,C,D   (RNH_SHEON | Q8EE30)
molecular function
    GO:0004523    RNA-DNA hybrid ribonuclease activity    Catalysis of the endonucleolytic cleavage of RNA in RNA-DNA hybrids to 5'-phosphomonoesters.
    GO:0004519    endonuclease activity    Catalysis of the hydrolysis of ester linkages within nucleic acids by creating internal breaks.
    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:0000287    magnesium ion binding    Interacting selectively and non-covalently with magnesium (Mg) ions.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0004518    nuclease activity    Catalysis of the hydrolysis of ester linkages within nucleic acids.
    GO:0003676    nucleic acid binding    Interacting selectively and non-covalently with any nucleic acid.
biological process
    GO:0043137    DNA replication, removal of RNA primer    Removal of the Okazaki RNA primer from the lagging strand of replicating DNA, by a combination of the actions of DNA polymerase, DNA helicase and an endonuclease.
    GO:0006401    RNA catabolic process    The chemical reactions and pathways resulting in the breakdown of RNA, ribonucleic acid, one of the two main type of nucleic acid, consisting of a long, unbranched macromolecule formed from ribonucleotides joined in 3',5'-phosphodiester linkage.
    GO:0090502    RNA phosphodiester bond hydrolysis, endonucleolytic    The chemical reactions and pathways involving the hydrolysis of internal 3',5'-phosphodiester bonds in one or two strands of ribonucleotides.
    GO:0090305    nucleic acid phosphodiester bond hydrolysis    The nucleic acid metabolic process in which the phosphodiester bonds between nucleotides are cleaved by hydrolysis.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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 Related Entries

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

UniProtKB/Swiss-Prot
        RNH_SHEON | Q8EE302e4l

(-) Related Entries Specified in the PDB File

2e4l