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(-) Description

Title :  DIMERIC STRUCTURE OF THE O. NOVA TELOMERE END BINDING PROTEIN ALPHA SUBUNIT WITH BOUND SSDNA
 
Authors :  O. B. Peersen, J. A. Ruggles, S. C. Schultz
Date :  03 Dec 01  (Deposition) - 22 Feb 02  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.70
Chains :  Asym. Unit :  A,D
Biol. Unit 1:  A,D  (2x)
Keywords :  Telomere Binding Protein, Dna-Protein Interactions, Single Stranded Dna, Ssdna, Dna Binding Protein/Dna Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  O. B. Peersen, J. A. Ruggles, S. C. Schultz
Dimeric Structure Of The Oxytricha Nova Telomere End-Binding Protein Alpha-Subunit Bound To Ssdna.
Nat. Struct. Biol. V. 9 182 2002
PubMed-ID: 11836536
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - 5'-D(*T*TP*TP*TP*GP*GP*GP*G)-3'
    ChainsD
    EngineeredYES
    Other Details3' TERMINAL SINGLE STRAND DNA SEQUENCE OF MACRONUCLEAR TELOMERES
    SyntheticYES
 
Molecule 2 - TELOMERE-BINDING PROTEIN ALPHA SUBUNIT
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPKKT7
    Expression System StrainBL21 (DE3) PLYSS
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneMAC-56A
    Organism ScientificSTERKIELLA NOVA
    Organism Taxid200597
    Other DetailsALANINE VERSION
    SynonymALPHA, MACRONUCLEAR ALPHA PROTEIN (ALANINE VERSION), MAC-56A

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AD
Biological Unit 1 (2x)AD

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, 4)
No.NameCountTypeFull Name
1SO44Ligand/IonSULFATE ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLY A:438 , GLY A:440 , ALA A:441 , ASN A:442 , LYS A:489 , ASP A:490 , HOH A:565BINDING SITE FOR RESIDUE SO4 A 901
2AC2SOFTWAREARG A:154 , GLN A:351 , ASN A:425BINDING SITE FOR RESIDUE SO4 A 902

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (1, 1)

Asymmetric Unit
No.Residues
1Glu A:379 -Pro A:380

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (2, 2)

Asymmetric Unit (2, 2)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_TEBA_STENO_002 *A311STEBA_STENO  ---  ---AA311S
2UniProtVAR_TEBA_STENO_003 *D456ETEBA_STENO  ---  ---AD456E
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (2, 4)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_TEBA_STENO_002 *A311STEBA_STENO  ---  ---AA311S
2UniProtVAR_TEBA_STENO_003 *D456ETEBA_STENO  ---  ---AD456E
   * ID not provided by source

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1KIX)

(-) 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:446
 aligned with TEBA_STENO | P29549 from UniProtKB/Swiss-Prot  Length:495

    Alignment length:460
                                    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       355       365       375       385       395       405       415       425       435       445       455       465       475       485       495
           TEBA_STENO    36 YEYVELAKASLTSAQPQHFYAVVIDATFPYKTNQERYICSLKIVDPTLYLKQQKGAGDASDYATLVLYAKRFEDLPIIHRAGDIIRVHRATLRLYNGQRQFNANVFYSSSWALFSTDKRSVTQEINNQDAVSDTTPFSFSSKHATIEKNEISILQNLRKWANQYFSSYSVISSDMYTALNKAQAQKGDFDVVAKILQVHELDEYTNELKLKDASGQVFYTLSLKLKFPHVRTGEVVRIRSATYDETSTQKKVLILSHYSNIITFIQSSKLAKELRAKIQDDHSVEVASLKKNVSLNAVVLTEVDKKHAALPSTSLQDLFHHADSDKELQAQDTFRTQFYVTKIEPSDVKEWVKGYDRKTKKSSSLKGASGKGDNIFQVQFLVKDASTQLNNNTYRVLLYTQDGLGANFFNVKADNLHKNADARKKLEDSAELLTKFNSYVDAVVERRNGFYLIKDTKLIY 495
               SCOP domains d1kixa1 A:36-204 Telomere end binding protein alpha subunit                                                                                                              d1kixa2 A:205-318 Telomere end binding protein alpha subunit                                                                d1kixa3 A:329-495 Telomere end binding protein alpha subunit                                                                                                            SCOP domains
               CATH domains -1kixA01 A:37-210 Nucleic acid-binding proteins                                                                                                                                1kixA02 A:211-331 Nucleic acid-binding proteins                                                                          1kixA03 A:332-495 Nucleic acid-binding proteins                                                                                                                      CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhh.......eeeeeeeeee...eeee..eeeeeeeee.............hhhhheeeeeee.hhhhh....ee..eeeeeeeeeeee..eeeeeee.....eeeee..............----.....ee.......hhhhhhhhhhhhhhhhhhhhhh...hhhhh.hhhhhh.....eeeeeeeeeeeeee..eeeeeee.....eeeeeee...........eeeeeeeee........eeeeeeeeeeeee...hhhhhhhhhhh.....----------.......eee.hhhh.....hhhhhhhhhhhh.......eeeeeeeeeeee..hhhh.eeeee....eee..........eeeeeeeeee..........eeeeee...................hhhhhhhhhhhhhhhhh....eeeeeee....eeee.eee.. Sec.struct. author
                 SAPs(SNPs) -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------S------------------------------------------------------------------------------------------------------------------------------------------------E--------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1kix A  36 YEYVELAKASLTSAQPQHFYAVVIDATFPYKTNQERYICSLKIVDPTLYLKQQKGAGDASDYATLVLYAKRFEDLPIIHRAGDIIRVHRATLRLYNGQRQFNANVFYSSSWALFSTDKRSVTQEINNQ----DTTPFSFSSKHATIEKNEISILQNLRKWANQYFSSYSVISSDMYTALNKAQAQKGDFDVVAKILQVHELDEYTNELKLKDASGQVFYTLSLKLKFPHVRTGEVVRIRSATYDETSTQKKVLILSHYSNIITFIQSSKLAKELRAKIQDDHS----------SLNAVVLTEVDKKHAALPSTSLQDLFHHADSDKELQAQDTFRTQFYVTKIEPSDVKEWVKGYDRKTKKSSSLKGASGKGDNIFQVQFLVKDASTQLNNNTYRVLLYTQDGLGANFFNVKADNLHKNADARKKLEDSAELLTKFNSYVDAVVERRNGFYLIKDTKLIY 495
                                    45        55        65        75        85        95       105       115       125       135       145       155       | -  |    175       185       195       205       215       225       235       245       255       265       275       285       295       305       315  |      -   |   335       345       355       365       375       385       395       405       415       425       435       445       455       465       475       485       495
                                                                                                                                                         163  168                                                                                                                                                   318        329                                                                                                                                                                      

Chain D from PDB  Type:DNA  Length:7
                                       
                 1kix D   2 TTTGGGG   8

   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, 3)

Asymmetric Unit

(-) CATH Domains  (1, 3)

Asymmetric Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (8, 8)

Asymmetric Unit(hide GO term definitions)
Chain A   (TEBA_STENO | P29549)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0043047    single-stranded telomeric DNA binding    Interacting selectively and non-covalently with single-stranded telomere-associated DNA.
biological process
    GO:0016233    telomere capping    A process in which telomeres are protected from degradation and fusion, thereby ensuring chromosome stability by protecting the ends from both degradation and from being recognized as damaged DNA. May be mediated by specific single- or double-stranded telomeric DNA binding proteins.
    GO:0000723    telomere maintenance    Any process that contributes to the maintenance of proper telomeric length and structure by affecting and monitoring the activity of telomeric proteins, the length of telomeric DNA and the replication and repair of the DNA. These processes includes those that shorten, lengthen, replicate and repair the telomeric DNA sequences.
cellular component
    GO:0005694    chromosome    A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
    GO:0000781    chromosome, telomeric region    The terminal region of a linear chromosome that includes the telomeric DNA repeats and associated proteins.
    GO:0000784    nuclear chromosome, telomeric region    The terminal region of a linear nuclear chromosome that includes the telomeric DNA repeats and associated proteins.
    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
        TEBA_STENO | P295491jb7 1k8g 1otc 1pa6 1ph1 1ph2 1ph3 1ph4 1ph5 1ph6 1ph7 1ph8 1ph9 1phj 2i0q

(-) Related Entries Specified in the PDB File

1jb7 ALPHA:BETA:SSDNA TERNARY COMPLEX WITH G-QUARTET STRUCTURE
1k8g ALPHA N-TERMINAL DOMAIN WITH AND WITHOUT BOUND SSDNA
1otc ALPHA:BETA:SSDNA TERNARY COMPLEX