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(-) Description

Title :  CRYSTAL STRUCTURE OF HEAT REPEATS (1-11) OF IMPORTIN B BOUND TO THE NON-CLASSICAL NLS(67-94) OF PTHRP
 
Authors :  G. Cingolani, J. Bednenko, M. T. Gillespie, L. Gerace
Date :  09 Jul 02  (Deposition) - 21 Jan 03  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.90
Chains :  Asym./Biol. Unit :  Q,S
Keywords :  All Helical Protein, Heat Repeats, Protein Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  G. Cingolani, J. Bednenko, M. T. Gillespie, L. Gerace
Molecular Basis For The Recognition Of A Nonclassical Nuclear Localization Signal By Importin Beta
Mol. Cell V. 10 1345 2002
PubMed-ID: 12504010  |  Reference-DOI: 10.1016/S1097-2765(02)00727-X
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - IMPORTIN BETA-1 SUBUNIT
    Chains: S
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21
    Expression System Plasmid: PTYB4
    Expression System Strain: BL21
    Expression System Taxid: 511693
    Expression System Vector Type: PLASMID
    Fragment: N-TERMINAL DOMAIN (RESIDUES 1-485)
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Synonym: KARYOPHERIN BETA-1 SUBUNIT, NUCLEAR FACTOR P97, IMPORTIN 90
 
Molecule 2 - PARATHYROID HORMONE-RELATED PROTEIN
    Chains: Q
    Engineered: YES
    Fragment: RESIDUES 67-94
    Other Details: THE PEPTIDE WAS CHEMICALLY SYNTHESIZED. THE SEQUENCE OF THE PEPTIDE IS NATURALLY FOUND IN HOMO SAPIENS (HUMAN).
    Synonym: PTHRP, PTH-RP
    Synthetic: YES

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : QS

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1M5N)

(-) Sites  (0, 0)

(no "Site" information available for 1M5N)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1M5N)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1M5N)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1M5N)

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1IMPORTIN_B_NTPS50166 Importin-beta N-terminal domain profile.IMB1_HUMAN21-101  1S:21-101
2HEAT_REPEATPS50077 HEAT repeat profile.IMB1_HUMAN409-446  1S:409-446

(-) Exons   (13, 13)

Asymmetric/Biological Unit (13, 13)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENST000002901581ENSE00001328366chr17:45727275-45727650376IMB1_HUMAN1-14141S:1-1414
1.2ENST000002901582ENSE00001110328chr17:45727752-4572781059IMB1_HUMAN14-33201S:14-3320
1.3ENST000002901583ENSE00001043051chr17:45730060-45730242183IMB1_HUMAN34-94611S:34-9461
1.4ENST000002901584ENSE00000924979chr17:45734226-45734426201IMB1_HUMAN95-161671S:95-16167
1.5ENST000002901585ENSE00000924980chr17:45735874-45736026153IMB1_HUMAN162-212511S:162-21251
1.6ENST000002901586ENSE00000924981chr17:45738485-4573854460IMB1_HUMAN213-232201S:213-23220
1.7ENST000002901587ENSE00000924982chr17:45740455-4574054490IMB1_HUMAN233-262301S:233-26230
1.8ENST000002901588ENSE00000924983chr17:45741525-45741635111IMB1_HUMAN263-299371S:263-29937
1.9ENST000002901589ENSE00000924984chr17:45742423-45742524102IMB1_HUMAN300-333341S:300-33334
1.10ENST0000029015810ENSE00000924985chr17:45745552-45745776225IMB1_HUMAN334-408751S:334-40875
1.11ENST0000029015811ENSE00001043047chr17:45747044-45747235192IMB1_HUMAN409-472641S:409-47264
1.12ENST0000029015812ENSE00000924987chr17:45748068-45748198131IMB1_HUMAN473-516441S:473-48513
1.13ENST0000029015813ENSE00001043027chr17:45750384-45750531148IMB1_HUMAN516-565500--
1.14ENST0000029015814ENSE00000924989chr17:45750856-4575092772IMB1_HUMAN566-589240--
1.15ENST0000029015815ENSE00000924990chr17:45752004-45752148145IMB1_HUMAN590-638490--
1.16ENST0000029015816ENSE00000924991chr17:45753775-4575385783IMB1_HUMAN638-665280--
1.17ENST0000029015817ENSE00000924992chr17:45754386-45754493108IMB1_HUMAN666-701360--
1.18ENST0000029015818ENSE00000924993chr17:45755412-45755555144IMB1_HUMAN702-749480--
1.19ENST0000029015819ENSE00000924994chr17:45755674-45755779106IMB1_HUMAN750-785360--
1.20ENST0000029015820ENSE00000924995chr17:45757386-45757500115IMB1_HUMAN785-823390--
1.21ENST0000029015821ENSE00000924996chr17:45757874-45758035162IMB1_HUMAN823-877550--
1.22ENST0000029015822ENSE00001343442chr17:45759770-457609981229IMB1_HUMAN877-87820--
2.1bENST000003958721bENSE00001523139chr12:28124903-2812486044PTHR_HUMAN-00--
2.2ENST000003958722ENSE00001647300chr12:28123200-28122958243PTHR_HUMAN-00--
2.4ENST000003958724ENSE00001756275chr12:28122449-28122327123PTHR_HUMAN1-34340--
2.5aENST000003958725aENSE00001188730chr12:28116703-28116281423PTHR_HUMAN34-1751421Q:67-9428
2.7ENST000003958727ENSE00001523130chr12:28111501-28111017485PTHR_HUMAN175-17730--

(-) 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 Q from PDB  Type:PROTEIN  Length:28
 aligned with PTHR_HUMAN | P12272 from UniProtKB/Swiss-Prot  Length:177

    Alignment length:28
                                   112       122        
           PTHR_HUMAN   103 YLTQETNKVETYKEQPLKTPGKKKKGKP 130
               SCOP domains ---------------------------- SCOP domains
               CATH domains ---------------------------- CATH domains
               Pfam domains Parathyroid-1m5nQ01 Q:67-94  Pfam domains
         Sec.struct. author .............hhhhh.......... Sec.struct. author
                 SAPs(SNPs) ---------------------------- SAPs(SNPs)
                    PROSITE ---------------------------- PROSITE
               Transcript 2 Exon 2.5a  PDB: Q:67-94      Transcript 2
                 1m5n Q  67 YLTQETNKVETYKEQPLKTPGKKKKGKP  94
                                    76        86        


Chain S from PDB  Type:PROTEIN  Length:485
 aligned with IMB1_HUMAN | Q14974 from UniProtKB/Swiss-Prot  Length:876

    Alignment length:485
                                    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     
           IMB1_HUMAN     1 MELITILEKTVSPDRLELEAAQKFLERAAVENLPTFLVELSRVLANPGNSQVARVAAGLQIKNSLTSKDPDIKAQYQQRWLAIDANARREVKNYVLQTLGTETYRPSSASQCVAGIACAEIPVNQWPELIPQLVANVTNPNSTEHMKESTLEAIGYICQDIDPEQLQDKSNEILTAIIQGMRKEEPSNNVKLAATNALLNSLEFTKANFDKESERHFIMQVVCEATQCPDTRVRVAALQNLVKIMSLYYQYMETYMGPALFAITIEAMKSDIDEVALQGIEFWSNVCDEEMDLAIEASEAAEQGRPPEHTSKFYAKGALQYLVPILTQTLTKQDENDDDDDWNPCKAAGVCLMLLATCCEDDIVPHVLPFIKEHIKNPDWRYRDAAVMAFGCILEGPEPSQLKPLVIQAMPTLIELMKDPSVVVRDTAAWTVGRICELLPEAAINDVYLAPLLQCLIEGLSAEPRVASNVCWAFSSLAEAAYEAA 485
               SCOP domains d1m5ns_ S: Importin beta                                                                                                                                                                                                                                                                                                                                                                                                                                                                              SCOP domains
               CATH domains 1m5nS00 S:1-485 Leucine-rich Repeat Variant                                                                                                                                                                                                                                                                                                                                                                                                                                                           CATH domains
               Pfam domains --------------------IBN_N-1m5nS02 S:21-101                                                           ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Arm-1m5nS01 S:399-437                  ------------------------------------------------ Pfam domains
         Sec.struct. author ...hhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhh.......hhhhhhhhhhh....hhhhhhhhh...........hhhhhhhhhhhh.........hhhhhhhhhhh....hhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhh....hhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhh.hhhhhh...hhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhh............hhhhhhhhhhhhhhhhhh............hhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhh....hhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------IMPORTIN_B_NT  PDB: S:21-101 UniProt: 21-101                                     -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------HEAT_REPEAT  PDB: S:409-446           --------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.1      -------------------Exon 1.3  PDB: S:34-94 UniProt: 34-94                        Exon 1.4  PDB: S:95-161 UniProt: 95-161                            Exon 1.5  PDB: S:162-212 UniProt: 162-212          Exon 1.6            Exon 1.7  PDB: S:233-262      Exon 1.8  PDB: S:263-299             Exon 1.9  PDB: S:300-333          Exon 1.10  PDB: S:334-408 UniProt: 334-408                                 Exon 1.11  PDB: S:409-472 UniProt: 409-472                      Exon 1.12     Transcript 1 (1)
           Transcript 1 (2) -------------Exon 1.2            -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript 1 (2)
                 1m5n S   1 MELITILEKTVSPDRLELEAAQKFLERAAVENLPTFLVELSRVLANPGNSQVARVAAGLQIKNSLTSKDPDIKAQYQQRWLAIDANARREVKNYVLQTLGTETYRPSSASQCVAGIACAEIPVNQWPELIPQLVANVTNPNSTEHMKESTLEAIGYICQDIDPEQLQDKSNEILTAIIQGMRKEEPSNNVKLAATNALLNSLEFTKANFDKESERHFIMQVVCEATQCPDTRVRVAALQNLVKIMSLYYQYMETYMGPALFAITIEAMKSDIDEVALQGIEFWSNVCDEEMDLAIEASEAAEQGRPPEHTSKFYAKGALQYLVPILTQTLTKQDENDDDDDWNPCKAAGVCLMLLATCCEDDIVPHVLPFIKEHIKNPDWRYRDAAVMAFGCILEGPEPSQLKPLVIQAMPTLIELMKDPSVVVRDTAAWTVGRICELLPEAAINDVYLAPLLQCLIEGLSAEPRVASNVCWAFSSLAEAAYEAA 485
                                    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
   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
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (3, 3)

Asymmetric/Biological Unit
(-)
Clan: TPR (230)
(-)
Clan: no clan defined [family: Parathyroid] (8)

(-) Gene Ontology  (57, 60)

Asymmetric/Biological Unit(hide GO term definitions)
Chain Q   (PTHR_HUMAN | P12272)
molecular function
    GO:0005179    hormone activity    The action characteristic of a hormone, any substance formed in very small amounts in one specialized organ or group of cells and carried (sometimes in the bloodstream) to another organ or group of cells in the same organism, upon which it has a specific regulatory action. The term was originally applied to agents with a stimulatory physiological action in vertebrate animals (as opposed to a chalone, which has a depressant action). Usage is now extended to regulatory compounds in lower animals and plants, and to synthetic substances having comparable effects; all bind receptors and trigger some biological process.
    GO:0051428    peptide hormone receptor binding    Interacting selectively and non-covalently with a receptor for peptide hormones.
biological process
    GO:0007189    adenylate cyclase-activating G-protein coupled receptor signaling pathway    The series of molecular signals generated as a consequence of a G-protein coupled receptor binding to its physiological ligand, where the pathway proceeds through activation of adenylyl cyclase activity and a subsequent increase in the concentration of cyclic AMP (cAMP).
    GO:0046058    cAMP metabolic process    The chemical reactions and pathways involving the nucleotide cAMP (cyclic AMP, adenosine 3',5'-cyclophosphate).
    GO:0007267    cell-cell signaling    Any process that mediates the transfer of information from one cell to another. This process includes signal transduction in the receiving cell and, where applicable, release of a ligand and any processes that actively facilitate its transport and presentation to the receiving cell. Examples include signaling via soluble ligands, via cell adhesion molecules and via gap junctions.
    GO:0008544    epidermis development    The process whose specific outcome is the progression of the epidermis over time, from its formation to the mature structure. The epidermis is the outer epithelial layer of an animal, it may be a single layer that produces an extracellular material (e.g. the cuticle of arthropods) or a complex stratified squamous epithelium, as in the case of many vertebrate species.
    GO:0007565    female pregnancy    The set of physiological processes that allow an embryo or foetus to develop within the body of a female animal. It covers the time from fertilization of a female ovum by a male spermatozoon until birth.
    GO:0008285    negative regulation of cell proliferation    Any process that stops, prevents or reduces the rate or extent of cell proliferation.
    GO:0032331    negative regulation of chondrocyte differentiation    Any process that stops, prevents, or reduces the frequency, rate or extent of chondrocyte differentiation.
    GO:0002076    osteoblast development    The process whose specific outcome is the progression of an osteoblast over time, from its formation to the mature structure. Osteoblast development does not include the steps involved in committing a cranial neural crest cell or an osteoprogenitor cell to an osteoblast fate. An osteoblast is a cell that gives rise to bone.
    GO:0030819    positive regulation of cAMP biosynthetic process    Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of the nucleotide cAMP (cyclic AMP, adenosine 3',5'-cyclophosphate).
    GO:0008284    positive regulation of cell proliferation    Any process that activates or increases the rate or extent of cell proliferation.
    GO:0032330    regulation of chondrocyte differentiation    Any process that modulates the frequency, rate or extent of chondrocyte differentiation.
    GO:0010468    regulation of gene expression    Any process that modulates the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
    GO:0001501    skeletal system development    The process whose specific outcome is the progression of the skeleton over time, from its formation to the mature structure. The skeleton is the bony framework of the body in vertebrates (endoskeleton) or the hard outer envelope of insects (exoskeleton or dermoskeleton).
cellular component
    GO:0005794    Golgi apparatus    A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
    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.

Chain S   (IMB1_HUMAN | Q14974)
molecular function
    GO:0051879    Hsp90 protein binding    Interacting selectively and non-covalently with Hsp90 proteins, any of a group of heat shock proteins around 90kDa in size.
    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:0019899    enzyme binding    Interacting selectively and non-covalently with any enzyme.
    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:0019904    protein domain specific binding    Interacting selectively and non-covalently with a specific domain of a protein.
    GO:0008565    protein transporter activity    Enables the directed movement of proteins into, out of or within a cell, or between cells.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
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:0031291    Ran protein signal transduction    A series of molecular signals within the cell that are mediated by a member of the Ran family of proteins switching to a GTP-bound active state.
    GO:0006309    apoptotic DNA fragmentation    The cleavage of DNA during apoptosis, which usually occurs in two stages: cleavage into fragments of about 50 kbp followed by cleavage between nucleosomes to yield 200 bp fragments.
    GO:0030953    astral microtubule organization    A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of astral microtubules, any of the spindle microtubules that radiate in all directions from the spindle poles.
    GO:0040001    establishment of mitotic spindle localization    The cell cycle process in which the directed movement of the mitotic spindle to a specific location in the cell occurs.
    GO:0045184    establishment of protein localization    The directed movement of a protein to a specific location.
    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:0075733    intracellular transport of virus    The directed movement of a virus, or part of a virus, within the host cell.
    GO:0007079    mitotic chromosome movement towards spindle pole    The cell cycle process in which the directed movement of chromosomes from the center of the spindle towards the spindle poles occurs. This mediates by the shortening of microtubules attached to the chromosomes, during mitosis.
    GO:0007080    mitotic metaphase plate congression    The cell cycle process in which chromosomes are aligned at the metaphase plate, a plane halfway between the poles of the mitotic spindle, during mitosis.
    GO:0090307    mitotic spindle assembly    The aggregation, arrangement and bonding together of a set of components to form the spindle that contributes to the process of mitosis.
    GO:0019054    modulation by virus of host process    The process in which a virus effects a change in the processes and activities of its host organism.
    GO:0000059    obsolete protein import into nucleus, docking    OBSOLETE. A protein complex assembly process that contributes to protein import into the nucleus, and that results in the association of a cargo protein, a carrier protein such as an importin alpha/beta heterodimer, and a nucleoporin located at the periphery of the nuclear pore complex.
    GO:0006606    protein import into nucleus    The directed movement of a protein from the cytoplasm to the nucleus.
    GO:0000060    protein import into nucleus, translocation    A protein transport process that contributes to protein import into the nucleus, and that results in the vectorial transfer of a cargo-carrier protein complex through the nuclear pore complex from the cytoplasmic side to the nucleoplasmic side of the nuclear envelope.
    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:0006610    ribosomal protein import into nucleus    The directed movement of a ribosomal protein from the cytoplasm into the nucleus, across the nuclear membrane.
    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.
    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: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:0071782    endoplasmic reticulum tubular network    A subcompartment of the endoplasmic reticulum consisting of tubules having membranes with high curvature in cross-section.
    GO:0070062    extracellular exosome    A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    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:0031965    nuclear membrane    Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane space.
    GO:0034399    nuclear periphery    The portion of the nuclear lumen proximal to the inner nuclear membrane.
    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:0043234    protein complex    A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical.

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  1m5n
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  IMB1_HUMAN | Q14974
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  PTHR_HUMAN | P12272
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  IMB1_HUMAN | Q14974
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 Related Entries

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

UniProtKB/Swiss-Prot
        IMB1_HUMAN | Q14974: 1f59 1ibr 1o6o 1o6p 1qgk 1qgr 2p8q 2q5d 2qna 3lww 3w5k
        PTHR_HUMAN | P12272: 1bzg 1et3 3ffd 3h3g

(-) Related Entries Specified in the PDB File

1qgk STRUCTURE OF IMPORTIN B BOUND TO THE IBB DOMAIN OF IMPORTIN A
1qgr STRUCTURE OF IMPORTIN B BOUND TO THE IBB DOMAIN OF IMPORTIN A (II CRYSTAL FORM GROWN AT LOW PH)