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(-) Description

Title :  CRYSTAL STRUCTURE OF THE EXPORTIN CSE1P COMPLEXED WITH ITS CARGO (KAP60P) AND RANGTP
 
Authors :  Y. Matsuura, M. Stewart
Date :  23 Oct 04  (Deposition) - 13 Dec 04  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A,B,C
Keywords :  Nuclear Transport/Complex, Nuclear Transport, Exportin, Importin Alpha, Ran Gtpase, Protein Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  Y. Matsuura, M. Stewart
Structural Basis For The Assembly Of A Nuclear Export Complex
Nature V. 432 872 2004
PubMed-ID: 15602554  |  Reference-DOI: 10.1038/NATURE03144

(-) Compounds

Molecule 1 - GTP-BINDING NUCLEAR PROTEIN RAN
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    FragmentRESIDUES 1-176
    Organism CommonDOG
    Organism ScientificCANIS FAMILIARIS
    Organism Taxid9615
    SynonymGTPASE RAN, RAS-LIKE PROTEIN TC4
 
Molecule 2 - IMPORTIN ALPHA RE-EXPORTER
    ChainsC
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Organism CommonBAKER'S YEAST
    Organism ScientificSACCHAROMYCES CEREVISIAE
    Organism Taxid4932
    SynonymCHROMOSOME SEGREGATION PROTEIN CSE1, CSE1P
 
Molecule 3 - IMPORTIN ALPHA SUBUNIT
    ChainsB
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    FragmentRESIDUES 1-530
    Organism CommonBAKER'S YEAST
    Organism ScientificSACCHAROMYCES CEREVISIAE
    Organism Taxid4932
    SynonymKAP60P, KARYOPHERIN ALPHA SUBUNIT, SERINE-RICH RNA POLYMERASE I SUPPRESSOR PROTEIN

 Structural Features

(-) Chains, Units

  123
Asymmetric/Biological Unit ABC

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 2)

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name
1GTP1Ligand/IonGUANOSINE-5'-TRIPHOSPHATE
2MG1Ligand/IonMAGNESIUM ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETHR A:24 , THR A:42 , GTP A:1177 , HOH A:2013 , HOH A:2025BINDING SITE FOR RESIDUE MG A1178
2AC2SOFTWAREGLY A:20 , THR A:21 , GLY A:22 , LYS A:23 , THR A:24 , THR A:25 , GLU A:36 , LYS A:37 , LYS A:38 , TYR A:39 , ALA A:41 , THR A:42 , ALA A:67 , GLY A:68 , GLN A:69 , ASN A:122 , LYS A:123 , ASP A:125 , ILE A:126 , SER A:150 , ALA A:151 , LYS A:152 , MG A:1178 , HOH A:2011 , HOH A:2013 , HOH A:2025 , HOH A:2067 , HOH A:2068 , SER C:889 , THR C:890 , PHE C:891 , HOH C:2281BINDING SITE FOR RESIDUE GTP A1177

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1WA5)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Lys B:247 -Pro B:248

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1WA5)

(-) PROSITE Motifs  (2, 3)

Asymmetric/Biological Unit (2, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1IMPORTIN_B_NTPS50166 Importin-beta N-terminal domain profile.CSE1_YEAST23-96  1C:23-96
2ARM_REPEATPS50176 Armadillo/plakoglobin ARM repeat profile.IMA1_YEAST130-173
341-375
  2B:130-173
B:341-375

(-) Exons   (2, 2)

Asymmetric/Biological Unit (2, 2)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1YGL238W1YGL238W.1VII:49552-524342883CSE1_YEAST1-9609601C:1-959 (gaps)959

2.1YNL189W1YNL189W.1XIV:284261-2858891629IMA1_YEAST1-5425421B:12-514 (gaps)503

(-) 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:170
 aligned with RAN_CANLF | P62825 from UniProtKB/Swiss-Prot  Length:216

    Alignment length:170
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176
            RAN_CANLF     7 PQVQFKLVLVGDGGTGKTTFVKRHLTGEFEKKYVATLGVEVHPLVFHTNRGPIKFNVWDTAGQEKFGGLRDGYYIQAQCAIIMFDVTSRVTYKNVPNWHRDLVRVCENIPIVLCGNKVDIKDRKVKAKSIVFHRKKNLQYYDISAKSNYNFEKPFLWLARKLIGDPNLEF 176
               SCOP domains d1wa5a_ A: Ran                                                                                                                                                             SCOP domains
               CATH domains 1wa5A00 A:7-176 P-loop containing nucleotide triphosphate hydrolases                                                                                                       CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeee....hhhhhhhhhhhh...........eeeeeeeeee..eeeeeeeeee..hhhhh.hhhhhhh...eeeeeee..hhhhhhhhhhhhhhhhhhh....eeeeee..............hhhhhhh.eeee.........hhhhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1wa5 A   7 PQVQFKLVLVGDGGTGKTTFVKRHLTGEFEKKYVATLGVEVHPLVFHTNRGPIKFNVWDTAGQEKFGGLRDGYYIQAQCAIIMFDVTSRVTYKNVPNWHRDLVRVCENIPIVLCGNKVDIKDRKVKAKSIVFHRKKNLQYYDISAKSNYNFEKPFLWLARKLIGDPNLEF 176
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176

Chain B from PDB  Type:PROTEIN  Length:464
 aligned with IMA1_YEAST | Q02821 from UniProtKB/Swiss-Prot  Length:542

    Alignment length:503
                                    21        31        41        51        61        71        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       501       511   
           IMA1_YEAST    12 FVPEYRRTNFKNKGRFSADELRRRRDTQQVELRKAKRDEALAKRRNFIPPTDGADSDEEDESSVSADQQFYSQLQQELPQMTQQLNSDDMQEQLSATVKFRQILSREHRPPIDVVIQAGVVPRLVEFMRENQPEMLQLEAAWALTNIASGTSAQTKVVVDADAVPLFIQLLYTGSVEVKEQAIWALGNVAGDSTDYRDYVLQCNAMEPILGLFNSNKPSLIRTATWTLSNLCRGKKPQPDWSVVSQALPTLAKLIYSMDTETLVDACWAISYLSDGPQEAIQAVIDVRIPKRLVELLSHESTLVQTPALRAVGNIVTGNDLQTQVVINAGVLPALRLLLSSPKENIKKEACWTISNITAGNTEQIQAVIDANLIPPLVKLLEVAEYKTKKEACWAISNASSGGLQRPDIIRYLVSQGCIKPLCDLLEIADNRIIEVTLDALENILKMGEADKEARGLNINENADFIEKAGGMEKIFNCQQNENDKIYEKAYKIIETYFGEEED 514
               SCOP domains d1wa5b_            B: Karyopherin alpha                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 SCOP domains
               CATH domains 1wa5B00            B:12-514 Leucine-rich Repeat                             Variant                                                                                                                                                                                                                                                                                                                                                                                                                                     CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhh.-----------............................----------------------------.hhhhhhhhhh..hhhhhhhhhhhhhhhh......hhhhhhhh.hhhhhhhh.....hhhhhhhhhhhhhhhh..hhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhh.hhhhhhhhhhh.hhhhhhhhhhhhhhhhh......hhhhhh.hhhhhhhhh...hhhhhhhhhhhhhhhhh.hhhhhhhhhhh.hhhhhhhhhhh.hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhh..hhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhh.hhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------ARM_REPEAT  PDB: B:130-173 UniProt: 130-173 -----------------------------------------------------------------------------------------------------------------------------------------------------------------------ARM_REPEAT  PDB: B:341-375         ------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
               Transcript 2 Exon 2.1  PDB: B:12-514 (gaps) UniProt: 1-542 [INCOMPLETE]                                                                                                                                                                                                                                                                                                                                                                                                                                                              Transcript 2
                 1wa5 B  12 FVPEYRRT-----------ELRRRRDTQQVELRKAKRDEALAKRRNF----------------------------QELPQMTQQLNSDDMQEQLSATVKFRQILSREHRPPIDVVIQAGVVPRLVEFMRENQPEMLQLEAAWALTNIASGTSAQTKVVVDADAVPLFIQLLYTGSVEVKEQAIWALGNVAGDSTDYRDYVLQCNAMEPILGLFNSNKPSLIRTATWTLSNLCRGKKPQPDWSVVSQALPTLAKLIYSMDTETLVDACWAISYLSDGPQEAIQAVIDVRIPKRLVELLSHESTLVQTPALRAVGNIVTGNDLQTQVVINAGVLPALRLLLSSPKENIKKEACWTISNITAGNTEQIQAVIDANLIPPLVKLLEVAEYKTKKEACWAISNASSGGLQRPDIIRYLVSQGCIKPLCDLLEIADNRIIEVTLDALENILKMGEADKEARGLNINENADFIEKAGGMEKIFNCQQNENDKIYEKAYKIIETYFGEEED 514
                                   | -        31        41        51      |  -         -         -     |  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       501       511   
                                  19          31                         58                           87                                                                                                                                                                                                                                                                                                                                                                                                                                           

Chain C from PDB  Type:PROTEIN  Length:938
 aligned with CSE1_YEAST | P33307 from UniProtKB/Swiss-Prot  Length:960

    Alignment length:959
                                    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       460       470       480       490       500       510       520       530       540       550       560       570       580       590       600       610       620       630       640       650       660       670       680       690       700       710       720       730       740       750       760       770       780       790       800       810       820       830       840       850       860       870       880       890       900       910       920       930       940       950         
           CSE1_YEAST     1 MSDLETVAKFLAESVIASTAKTSERNLRQLETQDGFGLTLLHVIASTNLPLSTRLAGALFFKNFIKRKWVDENGNHLLPANNVELIKKEIVPLMISLPNNLQVQIGEAISSIADSDFPDRWPTLLSDLASRLSNDDMVTNKGVLTVAHSIFKRWRPLFRSDELFLEIKLVLDVFTAPFLNLLKTVDEQITANENNKASLNILFDVLLVLIKLYYDFNCQDIPEFFEDNIQVGMGIFHKYLSYSNPLLEDPDETEHASVLIKVKSSIQELVQLYTTRYEDVFGPMINEFIQITWNLLTSISNQPKYDILVSKSLSFLTAVTRIPKYFEIFNNESAMNNITEQIILPNVTLREEDVELFEDDPIEYIRRDLEGSDTDTRRRACTDFLKELKEKNEVLVTNIFLAHMKGFVDQYMSDPSKNWKFKDLYIYLFTALAINGNITNAGVSSTNNLLNVVDFFTKEIAPDLTSNNIPHIILRVDAIKYIYTFRNQLTKAQLIELMPILATFLQTDEYVVYTYAAITIEKILTIRESNTSPAFIFHKEDISNSTEILLKNLIALILKHGSSPEKLAENEFLMRSIFRVLQTSEDSIQPLFPQLLAQFIEIVTIMAKNPSNPRFTHYTFESIGAILNYTQRQNLPLLVDSMMPTFLTVFSEDIQEFIPYVFQIIAFVVEQSATIPESIKPLAQPLLAPNVWELKGNIPAVTRLLKSFIKTDSSIFPDLVPVLGIFQRLIASKAYEVHGFDLLEHIMLLIDMNRLRPYIKQIAVLLLQRLQNSKTERYVKKLTVFFGLISNKLGSDFLIHFIDEVQDGLFQQIWGNFIITTLPTIGNLLDRKIALIGVLNMVINGQFFQSKYPTLISSTMNSIIETASSQSIANLKNDYVDLDNLEEISTFGSHFSKLVSISEKPFDPLPEIDVNNGVRLYVAEALNKYNAISGNTFLNTILPQLTQENQVKLNQLLVG 959
               SCOP domains d1wa5c_ C: Exportin Cse1p                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhh.......hhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....--hhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhh.......------..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhh.....hhhhhhhhhhhh----hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh----hhhhhhhhhhhhhhhhh................hhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhh.............hhhhh..hhhhhhhhhhhhhhh...hhhhhh.hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhh...........-----............hhhhh.............hhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------IMPORTIN_B_NT  PDB: C:23-96 UniProt: 23-96                                ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
               Transcript 1 Exon 1.1  PDB: C:1-959 (gaps) UniProt: 1-960 [INCOMPLETE]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Transcript 1
                 1wa5 C   1 MSDLETVAKFLAESVIASTAKTSERNLRQLETQDGFGLTLLHVIASTNLPLSTRLAGALFFKNFIKRKWVDENGNHLLPANNVELIKKEIVPLMISLPNNLQVQIGEAISSIADSDFPDRWPTLLSDLASRLSNDDMVTNKGVLTVAHSIFKRWRPLFRSDELFLEIKLVLDVFTAPFLNLLKTVDEQITANE--KASLNILFDVLLVLIKLYYDFNCQDIPEFFEDNIQVGMGIFHKYLSYSNPLLE------HASVLIKVKSSIQELVQLYTTRYEDVFGPMINEFIQITWNLLTSISNQPKYDILVSKSLSFLTAVTRIPKYFEIFNNESAMNNITEQIILPNVTLREEDVELFEDDPIEYIRRDLEG----TRRRACTDFLKELKEKNEVLVTNIFLAHMKGFVDQYMS----NWKFKDLYIYLFTALAINGNITNAGVSSTNNLLNVVDFFTKEIAPDLTSNNIPHIILRVDAIKYIYTFRNQLTKAQLIELMPILATFLQTDEYVVYTYAAITIEKILTIRESNTSPAFIFHKEDISNSTEILLKNLIALILKHGSSPEKLAENEFLMRSIFRVLQTSEDSIQPLFPQLLAQFIEIVTIMAKNPSNPRFTHYTFESIGAILNYTQRQNLPLLVDSMMPTFLTVFSEDIQEFIPYVFQIIAFVVEQSATIPESIKPLAQPLLAPNVWELKGNIPAVTRLLKSFIKTDSSIFPDLVPVLGIFQRLIASKAYEVHGFDLLEHIMLLIDMNRLRPYIKQIAVLLLQRLQNSKTERYVKKLTVFFGLISNKLGSDFLIHFIDEVQDGLFQQIWGNFIITTLPTIGNLLDRKIALIGVLNMVINGQFFQSKYPTLISSTMNSIIETASSQSIANLKNDYV-----EEISTFGSHFSKLVSISEKPFDPLPEIDVNNGVRLYVAEALNKYNAISGNTFLNTILPQLTQENQVKLNQLLVG 959
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190  |  | 200       210       220       230       240       | -    |  260       270       280       290       300       310       320       330       340       350       360       370|    | 380       390       400       410  |    420       430       440       450       460       470       480       490       500       510       520       530       540       550       560       570       580       590       600       610       620       630       640       650       660       670       680       690       700       710       720       730       740       750       760       770       780       790       800       810       820       830       840       850       860       870       880     | 890       900       910       920       930       940       950         
                                                                                                                                                                                                                          193  |                                                 248    255                                                                                                                 371  376                                  413  418                                                                                                                                                                                                                                                                                                                                                                                                                                                                           880   886                                                                         
                                                                                                                                                                                                                             196                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

   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, 3)

Asymmetric/Biological Unit

(-) CATH Domains  (2, 2)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1WA5)

(-) Gene Ontology  (31, 47)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (RAN_CANLF | P62825)
molecular function
    GO:0005525    GTP binding    Interacting selectively and non-covalently with GTP, guanosine triphosphate.
    GO:0003924    GTPase activity    Catalysis of the reaction: GTP + H2O = GDP + phosphate.
    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.
biological process
    GO:0007049    cell cycle    The progression of biochemical and morphological phases and events that occur in a cell during successive cell replication or nuclear replication events. Canonically, the cell cycle comprises the replication and segregation of genetic material followed by the division of the cell, but in endocycles or syncytial cells nuclear replication or nuclear division may not be followed by cell division.
    GO:0051301    cell division    The process resulting in division and partitioning of components of a cell to form more cells; may or may not be accompanied by the physical separation of a cell into distinct, individually membrane-bounded daughter cells.
    GO:0006886    intracellular protein transport    The directed movement of proteins in a cell, including the movement of proteins between specific compartments or structures within a cell, such as organelles of a eukaryotic cell.
    GO:0006913    nucleocytoplasmic transport    The directed movement of molecules between the nucleus and the cytoplasm.
    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:0000054    ribosomal subunit export from nucleus    The directed movement of a ribosomal subunit from the nucleus into the cytoplasm.
    GO:0007165    signal transduction    The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
    GO:0007264    small GTPase mediated signal transduction    Any series of molecular signals in which a small monomeric GTPase relays one or more of the signals.
    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:0042470    melanosome    A tissue-specific, membrane-bounded cytoplasmic organelle within which melanin pigments are synthesized and stored. Melanosomes are synthesized in melanocyte cells.
    GO:0005635    nuclear envelope    The double lipid bilayer enclosing the nucleus and separating its contents from the rest of the cytoplasm; includes the intermembrane space, a gap of width 20-40 nm (also called the perinuclear space).
    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.

Chain B   (IMA1_YEAST | Q02821)
molecular function
    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:0031144    proteasome localization    Any process in which the proteasome is transported to, or maintained in, a specific location.
    GO:0006606    protein import into nucleus    The directed movement of a protein from the cytoplasm to the nucleus.
    GO:0006612    protein targeting to membrane    The process of directing proteins towards a membrane, usually using signals contained within the protein.
    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:0000176    nuclear exosome (RNase complex)    A ribonuclease complex that has 3-prime to 5-prime processive and distributive hydrolytic exoribonuclease activity and endoribonuclease activity, producing 5-prime-phosphomonoesters. Participates in a multitude of cellular RNA processing and degradation events preventing nuclear export and/or translation of aberrant RNAs. Restricted to processing linear and circular single-stranded RNAs (ssRNA) only. RNAs with complex secondary structures may have to be unwound or pre-processed by co-factors prior to entering the complex, esp if the 3-prime end is structured.
    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.
    GO:0048471    perinuclear region of cytoplasm    Cytoplasm situated near, or occurring around, the nucleus.

Chain C   (CSE1_YEAST | P33307)
molecular function
    GO:0008536    Ran GTPase binding    Interacting selectively and non-covalently with Ran, a conserved Ras-like GTP-binding protein, implicated in nucleocytoplasmic transport, cell cycle progression, spindle assembly, nuclear organization and nuclear envelope (NE) assembly.
    GO:0005049    nuclear export signal receptor activity    Combining with a nuclear export signal (NES) to mediate transport of the NES-containing protein through the nuclear pore to the cytoplasm.
    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).
biological process
    GO:0007049    cell cycle    The progression of biochemical and morphological phases and events that occur in a cell during successive cell replication or nuclear replication events. Canonically, the cell cycle comprises the replication and segregation of genetic material followed by the division of the cell, but in endocycles or syncytial cells nuclear replication or nuclear division may not be followed by cell division.
    GO:0051301    cell division    The process resulting in division and partitioning of components of a cell to form more cells; may or may not be accompanied by the physical separation of a cell into distinct, individually membrane-bounded daughter cells.
    GO:0006886    intracellular protein transport    The directed movement of proteins in a cell, including the movement of proteins between specific compartments or structures within a cell, such as organelles of a eukaryotic cell.
    GO:0006611    protein export from nucleus    The directed movement of a protein from the nucleus into the cytoplasm.
    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:0005635    nuclear envelope    The double lipid bilayer enclosing the nucleus and separating its contents from the rest of the cytoplasm; includes the intermembrane space, a gap of width 20-40 nm (also called the perinuclear space).
    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)

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        CSE1_YEAST | P333071z3h
        IMA1_YEAST | Q028211bk5 1bk6 1ee4 1ee5 1un0 2c1t 4pvz 4xzr 5h2w 5h2x
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(-) Related Entries Specified in the PDB File

1bk5 KARYOPHERIN ALPHA FROM SACCHAROMYCES CEREVISIAE
1bk6 KARYOPHERIN ALPHA (YEAST) + SV40 T ANTIGEN NLS
1ee4 CRYSTAL STRUCTURE OF YEAST KARYOPHERIN (IMPORTIN) ALPHA IN A COMPLEX WITH A C- MYC NLS PEPTIDE
1ee5 YEAST KARYOPHERIN (IMPORTIN) ALPHA IN A COMPLEX WITH A NUCLEOPLASMIN NLS PEPTIDE
1un0 CRYSTAL STRUCTURE OF YEAST KARYOPHERIN (IMPORTIN) ALPHA IN COMPLEX WITH A NUP2P N -TERMINAL FRAGMENT