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(-) Description

Title :  STRUCTURAL BASIS FOR PROFICIENT INCORPORATION OF DTTP OPPOSITE O6-METHYLGUANINE BY HUMAN DNA POLYMERASE IOTA
 
Authors :  M. G. Pence
Date :  11 Jun 10  (Deposition) - 20 Oct 10  (Release) - 05 Jan 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.80
Chains :  Asym./Biol. Unit :  A,C,D
Keywords :  Hoogsteen Base Pair, Nucleoside Triphosphate, Y-Family Dna Polymerase, Translesion Synthesis, Transferase-Dna Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  M. G. Pence, J. Y. Choi, M. Egli, F. P. Guengerich
Structural Basis For Proficient Incorporation Of Dttp Opposite O6-Methylguanine By Human Dna Polymerase {Iota}.
J. Biol. Chem. V. 285 40666 2010
PubMed-ID: 20961860  |  Reference-DOI: 10.1074/JBC.M110.183665

(-) Compounds

Molecule 1 - 5'-D(*TP*CP*TP*(6OG) P*GP*GP*GP*TP*CP*CP*TP*AP*GP*GP*AP*CP*CP*(DOC))-3'
    ChainsC, D
    EngineeredYES
    SyntheticYES
 
Molecule 2 - DNA POLYMERASE IOTA
    ChainsA
    EC Number2.7.7.7
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPBG-POLI(BI)
    Expression System StrainBL21 GOLD (DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentCATALYTIC FRAGMENT, 1-420
    GenePOLI, RAD30B
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymRAD30 HOMOLOG B, ETA2

 Structural Features

(-) Chains, Units

  123
Asymmetric/Biological Unit ACD

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (3, 3)
No.NameCountTypeFull Name
16OG1Mod. Nucleotide6-O-METHYL GUANOSINE-5'-MONOPHOSPHATE
2DCP1Ligand/Ion2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE
3DOC1Mod. Nucleotide2',3'-DIDEOXYCYTIDINE-5'-MONOPHOSPHATE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARELEU A:35 , CYS A:37 , PHE A:38 , TYR A:39 , VAL A:64 , THR A:65 , TYR A:68 , ARG A:71 , LYS A:77 , ASP A:126 , LYS A:214 , HOH A:467 , DOC C:13 , 6OG D:840BINDING SITE FOR RESIDUE DCP A 875

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3NGD)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Lys A:214 -Pro A:215

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (3, 3)

Asymmetric/Biological Unit (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_021239R96GPOLI_HUMANPolymorphism3218778AR71G
2UniProtVAR_021240I261MPOLI_HUMANPolymorphism3218784AI236M
3UniProtVAR_021241E276KPOLI_HUMANPolymorphism3218783AE251K

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

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1UMUCPS50173 UmuC domain profile.POLI_HUMAN55-268  1A:30-243

(-) Exons   (0, 0)

(no "Exon" information available for 3NGD)

(-) 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:370
 aligned with POLI_HUMAN | Q9UNA4 from UniProtKB/Swiss-Prot  Length:740

    Alignment length:389
                                    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         
           POLI_HUMAN    51 SSRVIVHVDLDCFYAQVEMISNPELKDKPLGVQQKYLVVTCNYEARKLGVKKLMNVRDAKEKCPQLVLVNGEDLTRYREMSYKVTELLEEFSPVVERLGFDENFVDLTEMVEKRLQQLQSDELSAVTVSGHVYNNQSINLLDVLHIRLLVGSQIAAEMREAMYNQLGLTGCAGVASNKLLAKLVSGVFKPNQQTVLLPESCQHLIHSLNHIKEIPGIGYKTAKCLEALGINSVRDLQTFSPKILEKELGISVAQRIQKLSFGEDNSPVILSGPPQSFSEEDSFKKCSSEVEAKNKIEELLASLLNRVCQDGRKPHTVRLIIRRYSSEKHYGRESRQCPIPSHVIQKLGTGNYDVMTPMVDILMKLFRNMVNVKMPFHLTLLSVCFCNLK 439
               SCOP domains d3ngda1 A:26-299 DNA polymerase iota                                                                                                                                                                                                                                              d3ngda2 A:300-414 DNA polymerase iota                                                                               SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------IMS-3ngdA01 A:33-211                                                                                                                                                               -------------------------------------------------------IMS_C-3ngdA02 A:267-394                                                                                                                  ----------- Pfam domains
         Sec.struct. author ....eeeeee.hhhhhhhhhhhhhhh...eeeee..eeeeehhhhhh......eehhhhhhhh...eeee...hhhhhhhhhhhhhhhhhhh..eeee...eeeeehhhhhhhhhhhh.hhhhh......ee.hhh.....hhhhhhhhhhhhhhhhhhhhhhhhhh..eeeeee.hhhhhhhhhh......eee.hhhhhhhhhhhh.hhhhh...hhhhhhhhhh....hhhhhhh.hhhhhhhhhhhhhhhhhhhhhh..............eeeeeee.......hhhhhhhhhhhhhhhhhhhhhh.eeeeeeeeee....----.eeeeeee.hhhhh..------....hhhhhhhhhhhh.---------.eeeeeeeeee Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------G--------------------------------------------------------------------------------------------------------------------------------------------------------------------M--------------K------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----UMUC  PDB: A:30-243 UniProt: 55-268                                                                                                                                                                                   --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3ngd A  26 SSRVIVHVDLDCFYAQVEMISNPELKDKPLGVQQKYLVVTCNYEARKLGVKKLMNVRDAKEKCPQLVLVNGEDLTRYREMSYKVTELLEEFSPVVERLGFDENFVDLTEMVEKRLQQLQSDELSAVTVSGHVYNNQSINLLDVLHIRLLVGSQIAAEMREAMYNQLGLTGCAGVASNKLLAKLVSGVFKPNQQTVLLPESCQHLIHSLNHIKEIPGIGYKTAKCLEALGINSVRDLQTFSPKILEKELGISVAQRIQKLSFGEDNSPVILSGPPQSFSEEDSFKKCSSEVEAKNKIEELLASLLNRVCQDGRKPHTVRLIIRRYSS----GRESRQCPIPSHVIQK------DVMTPMVDILMKLFRNM---------TLLSVCFCNLK 414
                                    35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345     |   -|      365     |   -  |    385        |-       405         
                                                                                                                                                                                                                                                                                                                                                               351  356            371    378             394       404          

Chain C from PDB  Type:DNA  Length:7
                                       
                 3ngd C   7 AGGACCc  13
                                  |
                                 13-DOC

Chain D from PDB  Type:DNA  Length:8
                                        
                 3ngd D 840 gGGGTCCT 847
                            |       
                            |       
                          840-6OG   

   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  (2, 2)

Asymmetric/Biological Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3NGD)

(-) Pfam Domains  (2, 2)

Asymmetric/Biological Unit

(-) Gene Ontology  (17, 17)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (POLI_HUMAN | Q9UNA4)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0003887    DNA-directed DNA polymerase activity    Catalysis of the reaction: deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1); the synthesis of DNA from deoxyribonucleotide triphosphates in the presence of a DNA template and a 3'hydroxyl group.
    GO:0003684    damaged DNA binding    Interacting selectively and non-covalently with damaged DNA.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016779    nucleotidyltransferase activity    Catalysis of the transfer of a nucleotidyl group to a reactant.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
biological process
    GO:0071897    DNA biosynthetic process    The cellular DNA metabolic process resulting in the formation of DNA, deoxyribonucleic acid, one of the two main types of nucleic acid, consisting of a long unbranched macromolecule formed from one or two strands of linked deoxyribonucleotides, the 3'-phosphate group of each constituent deoxyribonucleotide being joined in 3',5'-phosphodiester linkage to the 5'-hydroxyl group of the deoxyribose moiety of the next one.
    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: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:0042276    error-prone translesion synthesis    The conversion of DNA-damage induced single-stranded gaps into large molecular weight DNA after replication by using a specialized DNA polymerase or replication complex to insert a defined nucleotide across the lesion. This process does not remove the replication-blocking lesions and causes an increase in the endogenous mutation level. For example, in E. coli, a low fidelity DNA polymerase, pol V, copies lesions that block replication fork progress. This produces mutations specifically targeted to DNA template damage sites, but it can also produce mutations at undamaged sites.
    GO:0019985    translesion synthesis    The replication of damaged DNA by synthesis across a lesion in the template strand; a specialized DNA polymerase or replication complex inserts a defined nucleotide across from the lesion which allows DNA synthesis to continue beyond the lesion. This process can be mutagenic depending on the damaged nucleotide and the inserted nucleotide.
cellular component
    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.
    GO:0043231    intracellular membrane-bounded organelle    Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.
    GO:0005654    nucleoplasm    That part of the nuclear content other than the chromosomes or the nucleolus.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.

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 Related Entries

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

UniProtKB/Swiss-Prot
        POLI_HUMAN | Q9UNA41t3n 1zet 2alz 2dpi 2dpj 2fll 2fln 2flp 2khu 2khw 2ktf 2l0f 2l0g 2mbb 3epg 3epi 3g6v 3g6x 3g6y 3gv5 3gv7 3gv8 3h40 3h4b 3h4d 3osn 3q8p 3q8q 3q8r 3q8s 4ebc 4ebd 4ebe 4eyh 4eyi 4fs1 4fs2 5kt2 5kt3 5kt4 5kt5 5kt6 5kt7 5ulw 5ulx

(-) Related Entries Specified in the PDB File

2alz TERNARY COMPLEX OF HPOLI WITH DNA AND DCTP
2fll TERNARY COMPLEX OF HUMAN DNA POLYMERASE IOTA WITH DNA AND DTTP
3epg STRUCTURE OF HUMAN DNA POLYMERASE IOTA COMPLEXED WITH N2- ETHYLGUANINE
3epi STRUCTURE OF HUMAN DNA POLYMERASE IOTA COMPLEXED WITH N2- ETHYLGUANINE AND INCOMING TTP
3nge STRUCTURAL BASIS FOR PROFICIENT INCORPORATION OF DTTP OPPOSITE O6-METHYLGUANINE BY HUMAN DNA POLYMERASE IOTA