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(-) Description

Title :  HUMAN SUN2 (AA 522-717)
 
Authors :  B. Sosa, T. U. Schwartz
Date :  28 Feb 12  (Deposition) - 06 Jun 12  (Release) - 06 Jun 12  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.22
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (3x)
Keywords :  Beta-Sandwich, Linc Complex, Structural Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  B. A. Sosa, A. Rothballer, U. Kutay, T. U. Schwartz
Linc Complexes Form By Binding Of Three Kash Peptides To Domain Interfaces Of Trimeric Sun Proteins.
Cell(Cambridge, Mass. ) V. 149 1035 2012
PubMed-ID: 22632968  |  Reference-DOI: 10.1016/J.CELL.2012.03.046

(-) Compounds

Molecule 1 - SUN DOMAIN-CONTAINING PROTEIN 2
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    FragmentSUN DOMAIN (UNP RESIDUES 522-717)
    GeneSUN2, FRIGG, KIAA0668, RAB5IP, UNC84B
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymPROTEIN UNC-84 HOMOLOG B, RAB5-INTERACTING PROTEIN, RAB5IP, SAD1/UNC-84 PROTEIN-LIKE 2

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit A
Biological Unit 1 (3x)A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1K1Ligand/IonPOTASSIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1K-1Ligand/IonPOTASSIUM ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREVAL A:590 , GLN A:593 , ASP A:595 , ASN A:600 , TYR A:707 , HOH A:1124BINDING SITE FOR RESIDUE K A 1001

(-) SS Bonds  (1, 1)

Asymmetric Unit
No.Residues
1A:601 -A:705

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 4DXT)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (1, 1)

Asymmetric Unit (1, 1)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_024624G671SSUN2_HUMANPolymorphism2072797AG671S

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (1, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_024624G671SSUN2_HUMANPolymorphism2072797AG671S

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

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SUNPS51469 SUN domain profile.SUN2_HUMAN555-716  1A:555-716
Biological Unit 1 (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SUNPS51469 SUN domain profile.SUN2_HUMAN555-716  3A:555-716

(-) Exons   (0, 0)

(no "Exon" information available for 4DXT)

(-) 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:198
 aligned with SUN2_HUMAN | Q9UH99 from UniProtKB/Swiss-Prot  Length:717

    Alignment length:217
                                   510       520       530       540       550       560       570       580       590       600       610       620       630       640       650       660       670       680       690       700       710       
           SUN2_HUMAN   501 GKSAREAAASLSLTLQKEGVIGVTEEQVHHIVKQALQRYSEDRIGLADYALESGGASVISTRCSETYETKTALLSLFGIPLWYHSQSPRVILQPDVHPGNCWAFQGPQGFAVVRLSARIRPTAVTLEHVPKALSPNSTISSAPKDFAIFGFDEDLQQEGTLLGKFTYDQDGEPIQTFHFQAPTMATYQVVELRILTNWGHPEYTCIYRFRVHGEPAH 717
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..-------------------..hhhhhhhhhhhhhhhhhh.........hhhhh.eeeeeee......hhhhhh...........hhhhhhh........eeee...eeeeeeeeeeeeeeeeeee..hhhhhhhhh......eeeeeee........eeeeeee.......eeeee........eeeeeeee........eeee.eeeeeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------S---------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------SUN  PDB: A:555-716 UniProt: 555-716                                                                                                                              - PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4dxt A 520 GP-------------------GVTEEQVHHIVKQALQRYSEDRIGLADYALESGGASVISTRCSETYETKTALLSLFGIPLWYHSQSPRVILQPDVHPGNCWAFQGPQGFAVVRLSARIRPTAVTLEHVPKALSPNSTISSAPKDFAIFGFDEDLQQEGTLLGKFTYDQDGEPIQTFHFQAPTMATYQVVELRILTNWGHPEYTCIYRFRVHGEPAH 717
                             |       -         - |     530       540       550       560       570       580       590       600       610       620       630       640       650       660       670       680       690       700       710       
                             |                 522                                                                                                                                                                                                   
                           521                                                                                                                                                                                                                       

   Legend:   → Mismatch (orange background)
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  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  (0, 0)

(no "SCOP Domain" information available for 4DXT)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4DXT)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4DXT)

(-) Gene Ontology  (24, 24)

Asymmetric Unit(hide GO term definitions)
Chain A   (SUN2_HUMAN | Q9UH99)
molecular function
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    GO:0005521    lamin binding    Interacting selectively and non-covalently with lamin; any of a group of intermediate-filament proteins that form the fibrous matrix on the inner surface of the nuclear envelope.
    GO:0008017    microtubule binding    Interacting selectively and non-covalently with microtubules, filaments composed of tubulin monomers.
    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:0051642    centrosome localization    Any process in which a centrosome is transported to, and/or maintained in, a specific location within the cell.
    GO:0090286    cytoskeletal anchoring at nuclear membrane    The process in which cytoskeletal filaments are directly or indirectly linked to the nuclear membrane.
    GO:0007052    mitotic spindle organization    A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the microtubule spindle during a mitotic cell cycle.
    GO:0006998    nuclear envelope organization    A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the nuclear envelope.
    GO:0090292    nuclear matrix anchoring at nuclear membrane    The process in which the nuclear matrix, the dense fibrillar network lying on the inner side of the nuclear membrane, is directly or indirectly linked to the nuclear membrane.
    GO:0007097    nuclear migration    The directed movement of the nucleus.
    GO:0031022    nuclear migration along microfilament    The directed movement of the nucleus along microfilaments within the cell, mediated by motor proteins.
    GO:0030335    positive regulation of cell migration    Any process that activates or increases the frequency, rate or extent of cell migration.
cellular component
    GO:0034993    LINC complex    A protein complex that spans the nuclear outer and inner membranes, thereby linking the major cytoplasmic cytoskeleton elements to the nuclear lumen; the complex is conserved in eukaryotes and contains proteins with SUN and KASH domains.
    GO:0000794    condensed nuclear chromosome    A highly compacted molecule of DNA and associated proteins resulting in a cytologically distinct nuclear chromosome.
    GO:0005768    endosome    A vacuole to which materials ingested by endocytosis are delivered.
    GO:0010008    endosome membrane    The lipid bilayer surrounding an endosome.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0005639    integral component of nuclear inner membrane    The component of the nuclear inner membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0000784    nuclear chromosome, telomeric region    The terminal region of a linear nuclear chromosome that includes the telomeric DNA repeats and associated proteins.
    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:0005637    nuclear inner membrane    The inner, i.e. lumen-facing, lipid bilayer of the nuclear envelope.
    GO:0031965    nuclear membrane    Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane 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)

UniProtKB/Swiss-Prot
        SUN2_HUMAN | Q9UH993unp 4dxr 4dxs 4fi9

(-) Related Entries Specified in the PDB File

4dxr 4dxs