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(-) Description

Title :  MOUSE IMPORTIN ALPHA-SV40 LARGE T ANTIGEN NLS PEPTIDE COMPLEX
 
Authors :  M. R. Fontes, T. Teh, B. Kobe
Date :  03 Mar 00  (Deposition) - 24 Apr 00  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.80
Chains :  Asym./Biol. Unit :  A,B,I
Keywords :  Importin Alpha/Karyopherin Alpha; Nuclear Localization Sequence (Nls) Recognition; Simian Virus (Sv40) Large T- Antigen, Protein Binding (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  M. R. Fontes, T. Teh, B. Kobe
Structural Basis Of Recognition Of Monopartite And Bipartite Nuclear Localization Sequences By Mammalian Importin-Alpha.
J. Mol. Biol. V. 297 1183 2000
PubMed-ID: 10764582  |  Reference-DOI: 10.1006/JMBI.2000.3642
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - SV40 LARGE T ANTIGEN NLS PEPTIDE
    ChainsA, B
    EngineeredYES
    FragmentNLS (NUCLEAR LOCALIZATION SIGNAL) MONOPARTITE PEPTIDE, RESIDUES 126-132
    Other DetailsTHE PEPTIDE WAS CHEMICALLY SYNTHESIZED. THE SEQUENCE OF THIS PEPTIDE IS NATURALLY FOUND IN SIMIAN VIRUS 40 T ANTIGEN (SV40).
    SyntheticYES
 
Molecule 2 - IMPORTIN ALPHA
    ChainsI
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET30A
    Expression System Taxid562
    FragmentNLS-BINDING DOMAIN, RESIDUES 70-529
    Organism CommonHOUSE MOUSE
    Organism ScientificMUS MUSCULUS
    Organism Taxid10090
    SynonymKARYOPHERIN ALPHA

 Structural Features

(-) Chains, Units

  123
Asymmetric/Biological Unit ABI

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1EJL)

(-) Sites  (0, 0)

(no "Site" information available for 1EJL)

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Asn I:241 -Pro I:242

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 6)

Asymmetric/Biological Unit (1, 6)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ARM_REPEATPS50176 Armadillo/plakoglobin ARM repeat profile.IMA1_MOUSE162-204
119-162
204-230
251-293
293-335
335-377
  6I:162-204
I:119-162
I:204-230
I:251-293
I:293-335
I:335-377

(-) Exons   (0, 0)

(no "Exon" information available for 1EJL)

(-) 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:7
 aligned with LT_SV40 | P03070 from UniProtKB/Swiss-Prot  Length:708

    Alignment length:7
              LT_SV40   126 PKKKRKV 132
               SCOP domains ------- SCOP domains
               CATH domains ------- CATH domains
               Pfam domains ------- Pfam domains
         Sec.struct. author ....... Sec.struct. author
                 SAPs(SNPs) ------- SAPs(SNPs)
                    PROSITE ------- PROSITE
                 Transcript ------- Transcript
                 1ejl A 126 PKKKRKV 132

Chain B from PDB  Type:PROTEIN  Length:7
 aligned with LT_SV40 | P03070 from UniProtKB/Swiss-Prot  Length:708

    Alignment length:7
              LT_SV40   126 PKKKRKV 132
               SCOP domains ------- SCOP domains
               CATH domains ------- CATH domains
               Pfam domains ------- Pfam domains
         Sec.struct. author ....... Sec.struct. author
                 SAPs(SNPs) ------- SAPs(SNPs)
                    PROSITE ------- PROSITE
                 Transcript ------- Transcript
                 1ejl B 126 PKKKRKV 132

Chain I from PDB  Type:PROTEIN  Length:426
 aligned with IMA1_MOUSE | P52293 from UniProtKB/Swiss-Prot  Length:529

    Alignment length:426
                                    81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491      
           IMA1_MOUSE    72 GTVNWSVEDIVKGINSNNLESQLQATQAARKLLSREKQPPIDNIIRAGLIPKFVSFLGKTDCSPIQFESAWALTNIASGTSEQTKAVVDGGAIPAFISLLASPHAHISEQAVWALGNIAGDGSAFRDLVIKHGAIDPLLALLAVPDLSTLACGYLRNLTWTLSNLCRNKNPAPPLDAVEQILPTLVRLLHHNDPEVLADSCWAISYLTDGPNERIEMVVKKGVVPQLVKLLGATELPIVTPALRAIGNIVTGTDEQTQKVIDAGALAVFPSLLTNPKTNIQKEATWTMSNITAGRQDQIQQVVNHGLVPFLVGVLSKADFKTQKEAAWAITNYTSGGTVEQIVYLVHCGIIEPLMNLLSAKDTKIIQVILDAISNIFQAAEKLGETEKLSIMIEECGGLDKIEALQRHENESVYKASLNLIEKYFS 497
               SCOP domains d1ejli_ I: Importin alpha                                                                                                                                                                                                                                                                                                                                                                                                                  SCOP domains
               CATH domains 1ejlI00 I:72-497 Leucine-rich Repeat Variant                                                                                                                                                                                                                                                                                                                                                                                               CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .....hhhhhhhhhh..hhhhhhhhhhhhhhhhhh....hhhhhhhh.hhhhhhhhhh...hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhh.hhhhhhhhhhh.hhhhhhhhh...hhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhh..hhhhhhhhhh..hhhhhhhhh...hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhh.hhhhhhhhhhh..hhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (1) ------------------------------------------------------------------------------------------ARM_REPEAT  PDB: I:162-204 UniProt: 162-204----------------------------------------------ARM_REPEAT  PDB: I:251-293 UniProt: 251-293-----------------------------------------ARM_REPEAT  PDB: I:335-377 UniProt: 335-377------------------------------------------------------------------------------------------------------------------------ PROSITE (1)
                PROSITE (2) -----------------------------------------------ARM_REPEAT  PDB: I:119-162 UniProt: 119-162 -----------------------------------------ARM_REPEAT  PDB: I:204-230 --------------------------------------------------------------ARM_REPEAT  PDB: I:293-335 UniProt: 293-335------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1ejl I  72 GTVNWSVEDIVKGINSNNLESQLQATQAARKLLSREKQPPIDNIIRAGLIPKFVSFLGKTDCSPIQFESAWALTNIASGTSEQTKAVVDGGAIPAFISLLASPHAHISEQAVWALGNIAGDGSAFRDLVIKHGAIDPLLALLAVPDLSTLACGYLRNLTWTLSNLCRNKNPAPPLDAVEQILPTLVRLLHHNDPEVLADSCWAISYLTDGPNERIEMVVKKGVVPQLVKLLGATELPIVTPALRAIGNIVTGTDEQTQKVIDAGALAVFPSLLTNPKTNIQKEATWTMSNITAGRQDQIQQVVNHGLVPFLVGVLSKADFKTQKEAAWAITNYTSGGTVEQIVYLVHCGIIEPLMNLLSAKDTKIIQVILDAISNIFQAAEKLGETEKLSIMIEECGGLDKIEALQRHENESVYKASLNLIEKYFS 497
                                    81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491      

   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, 1)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (39, 40)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (LT_SV40 | P03070)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0003688    DNA replication origin binding    Interacting selectively and non-covalently with the DNA replication origin, a unique DNA sequence of a replicon at which DNA replication is initiated and proceeds bidirectionally or unidirectionally.
    GO:0003690    double-stranded DNA binding    Interacting selectively and non-covalently with double-stranded DNA.
    GO:0004386    helicase activity    Catalysis of the reaction: NTP + H2O = NDP + phosphate, to drive the unwinding of a DNA or RNA helix.
    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:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    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: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:0003697    single-stranded DNA binding    Interacting selectively and non-covalently with single-stranded DNA.
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:0006268    DNA unwinding involved in DNA replication    The process in which interchain hydrogen bonds between two strands of DNA are broken or 'melted', generating unpaired template strands for DNA replication.
    GO:0039686    bidirectional double-stranded viral DNA replication    A viral DNA replication process where replication occurs in both directions from the starting point. This creates two replication forks, moving in opposite directions.
    GO:0030683    evasion or tolerance by virus of host immune response    Any process, either active or passive, by which a virus avoids the effects of the host organism's immune response. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0039645    modulation by virus of host G1/S transition checkpoint    Any viral process that modulates the frequency, rate or extent of the host cell G1/S transition checkpoint.
    GO:0060153    modulation by virus of host cell cycle    Any viral process that modulates the rate or extent of progression through the cell cycle.
    GO:0039648    modulation by virus of host protein ubiquitination    Any process in which a virus modulates the frequency, rate or extent of protein ubiquitination in the host organism. Ubiquitination is the process in which one or more ubiquitin groups are added to a protein.
    GO:0039649    modulation by virus of host ubiquitin-protein ligase activity    The process in which a virus effects a change in host ubiquitin-protein ligase activity. Ubiquitin-protein ligase activity catalyzes the reaction: ATP + ubiquitin + protein lysine = AMP + diphosphate + protein N-ubiquityllysine.
    GO:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0039576    suppression by virus of host JAK1 activity    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host JAK1 (Janus Kinase 1) activity. In the host, binding of a ligand to a receptor triggers activation of JAK proteins, which phosphorylate tyrosine residues on the receptor creating sites for STAT proteins to bind, which are in turn phosphorylated and activated by JAK proteins. By blocking JAK1 activity, many viruses block the host signal transduction pathway.
    GO:0039503    suppression by virus of host innate immune response    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of the innate immune response of the host organism, the host's first line of defense.
    GO:0039502    suppression by virus of host type I interferon-mediated signaling pathway    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of type I interferon-mediated signaling in the host organism. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
    GO:0006351    transcription, DNA-templated    The cellular synthesis of RNA on a template of DNA.
    GO:0039693    viral DNA genome replication    The replication of a viral DNA genome.
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
cellular component
    GO:0042025    host cell nucleus    A membrane-bounded organelle as it is found in the host cell in which chromosomes are housed and replicated. The host is defined as the larger of the organisms involved in a symbiotic interaction.

Chain I   (IMA1_MOUSE | P52293)
molecular function
    GO:0042826    histone deacetylase binding    Interacting selectively and non-covalently with the enzyme histone deacetylase.
    GO:0008139    nuclear localization sequence binding    Interacting selectively and non-covalently with a nuclear localization sequence, a specific peptide sequence that acts as a signal to localize the protein within the nucleus.
    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:0008565    protein transporter activity    Enables the directed movement of proteins into, out of or within a cell, or between cells.
biological process
    GO:0006607    NLS-bearing protein import into nucleus    The directed movement of a protein bearing a nuclear localization signal (NLS) from the cytoplasm into the nucleus, across the nuclear membrane.
    GO:0006606    protein import into nucleus    The directed movement of a protein from the cytoplasm to the nucleus.
    GO:0015031    protein transport    The directed movement of proteins into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005643    nuclear pore    Any of the numerous similar discrete openings in the nuclear envelope of a eukaryotic cell, where the inner and outer nuclear membranes are joined.
    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
        IMA1_MOUSE | P522931ejy 1ial 1iq1 1pjm 1pjn 1q1s 1q1t 1y2a 2c1m 2ynr 3btr 3knd 3l3q 3oqs 3q5u 3rz9 3rzx 3tpm 3tpo 3ukw 3ukx 3uky 3ukz 3ul0 3ul1 3uvu 3ve6 3zin 3zio 3zip 3ziq 3zir 4ba3 4htv 4mz5 4mz6 4oih 4u54 4u58 4u5l 4u5n 4u5o 4u5s 4u5u 4u5v 4uaf 4yi0 4zdu 5b56 5ctt 5d5k 5e6q 5ekf 5ekg 5fc8 5hhg 5huw 5huy 5k9s 5klr 5klt 5svz 5wum 5wun 5x8n
        LT_SV40 | P030701gh6 1n25 1q1s 1q1t 1svl 1svm 1svo 1tbd 1z1d 2fuf 2h1l 2if9 2ipr 2itj 2itl 2nl8 2ntc 2tbd 3qk2 3qn2 4e2i 4fgn 4gdf 4rxh 5d9i 5tct

(-) Related Entries Specified in the PDB File

1bk6 1ejy 1ial