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(-) Description

Authors :  K. Ichiyanagi, Y. Ishino, K. Morikawa
Date :  30 Dec 99  (Deposition) - 05 Jul 00  (Release) - 24 Feb 09  (Revision)
Resolution :  2.10
Chains :  Asym./Biol. Unit :  A
Keywords :  Endonuclease, Pi-Pfui, Intein-Encoded, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  K. Ichiyanagi, Y. Ishino, M. Ariyoshi, K. Komori, K. Morikawa
Crystal Structure Of An Archaeal Intein-Encoded Homing Endonuclease Pi-Pfui.
J. Mol. Biol. V. 300 889 2000
PubMed-ID: 10891276  |  Reference-DOI: 10.1006/JMBI.2000.3873
(for further references see the PDB file header)

(-) Compounds

    Expression SystemESCHERICHIA COLI BL21(DE3)
    Expression System PlasmidPET21
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Organism ScientificPYROCOCCUS FURIOSUS
    Organism Taxid2261

 Structural Features

(-) Chains, Units

Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1ZN1Ligand/IonZINC ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1DQ3)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
1Lys A:256 -Pro A:257

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1DQ3)

(-) PROSITE Motifs  (3, 3)

Asymmetric/Biological Unit (3, 3)
1INTEIN_N_TERPS50817 Intein N-terminal splicing motif profile.NDRZ_PYRFU302-404
2INTEIN_ENDONUCLEASEPS50819 Intein DOD-type homing endonuclease domain profile.NDRZ_PYRFU443-582
3INTEIN_C_TERPS50818 Intein C-terminal splicing motif profile.NDRZ_PYRFU731-756

(-) Exons   (0, 0)

(no "Exon" information available for 1DQ3)

(-) 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:454
 aligned with NDRZ_PYRFU | E7FHX6 from UniProtKB/Swiss-Prot  Length:1740

    Alignment length:454
                                   311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521       531       541       551       561       571       581       591       601       611       621       631       641       651       661       671       681       691       701       711       721       731       741       751    
               SCOP domains d1dq3a1 A:1-128,A:415-454 PI-Pfui intein                                                                                        d1dq3a3 A:129-226 PI-Pfui intein                                                                  d1dq3a4 A:227-335 PI-Pfui intein                                                                             d1dq3a2 A:336-414 PI-Pfui intein middle domain                                 d1dq3a1 A:1-128,A:415-454 PI-Pfui intein SCOP domains
               CATH domains 1dq3A01 A:1-137,A:415-454 Endonuclease - Pi-scei; Chain A, domain 1                                                                      1dq3A03 A:138-224 Homing endonucleases                                                 1dq3A04 A:225-338 Homing endonucleases                                                                            1dq3A02 A:339-414  [code=, no name defined]                      1dq3A01 A:1-137,A:415-454                CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE INTEIN_N_TER  PDB: A:1-103 UniProt: 302-404                                                            --------------------------------------INTEIN_ENDONUCLEASE  PDB: A:142-281 UniProt: 443-582                                                                                        ----------------------------------------------------------------------------------------------------------------------------------------------------INTEIN_C_TER              PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450    

   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  (3, 4)

Asymmetric/Biological Unit

(-) CATH Domains  (3, 4)

Asymmetric/Biological Unit
Class: Alpha Beta (26913)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1DQ3)

(-) Gene Ontology  (11, 11)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (NDRZ_PYRFU | E7FHX6)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0031419    cobalamin binding    Interacting selectively and non-covalently with cobalamin (vitamin B12), a water-soluble vitamin characterized by possession of a corrin nucleus containing a cobalt atom.
    GO:0004519    endonuclease activity    Catalysis of the hydrolysis of ester linkages within nucleic acids by creating internal breaks.
    GO:0016788    hydrolase activity, acting on ester bonds    Catalysis of the hydrolysis of any ester bond.
    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:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    GO:0004748    ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor    Catalysis of the reaction: 2'-deoxyribonucleoside diphosphate + thioredoxin disulfide + H2O = ribonucleoside diphosphate + thioredoxin. Thioredoxin disulfide is the oxidized form of thioredoxin.
biological process
    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:0016539    intein-mediated protein splicing    The removal of an internal amino acid sequence (an intein) from a protein during protein maturation; the excision of inteins is precise and the N- and C-terminal exteins are joined by a normal peptide bond. Protein splicing involves 4 nucleophilic displacements by the 3 conserved splice junction residues.
    GO:0090305    nucleic acid phosphodiester bond hydrolysis    The nucleic acid metabolic process in which the phosphodiester bonds between nucleotides are cleaved by hydrolysis.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.


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 Related Entries

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

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