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(-) Description

Title :  CRYSTAL STRUCTURE OF THE SRP19-7S.S SRP RNA COMPLEX OF M. JANNASCHII
 
Authors :  T. Hainzl, S. Huang, A. E. Sauer-Eriksson
Date :  03 May 02  (Deposition) - 07 Jun 02  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.30
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Protein-Rna Complex, Signaling Protein/Rna Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  T. Hainzl, S. Huang, A. E. Sauer-Eriksson
Structure Of The Srp19 Rna Complex And Implications For Signal Recognition Particle Assembly.
Nature V. 417 767 2002
PubMed-ID: 12050674  |  Reference-DOI: 10.1038/NATURE00768
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - 7S.S SRP RNA
    Chains: B
    Engineered: YES
    Organism Scientific: METHANOCALDOCOCCUS JANNASCHII
    Organism Taxid: 2190
    Other Details: IN VITRO TRANSCRIPTION
 
Molecule 2 - SIGNAL RECOGNITION PARTICLE 19 KDA PROTEIN
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Organism Scientific: METHANOCALDOCOCCUS JANNASCHII
    Organism Taxid: 2190
    Synonym: SRP19

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric/Biological Unit (1, 2)
No.NameCountTypeFull Name
1MG2Ligand/IonMAGNESIUM ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREG B:204 , HOH B:544 , HOH B:545 , HOH B:546 , HOH B:547 , HOH B:548BINDING SITE FOR RESIDUE MG B 401
2AC2SOFTWAREG B:209 , A B:211 , HOH B:549 , HOH B:550 , HOH B:551BINDING SITE FOR RESIDUE MG B 402

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1LNG)

(-) 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:87
 aligned with SRP19_METJA | Q58440 from UniProtKB/Swiss-Prot  Length:87

    Alignment length:87
                                    10        20        30        40        50        60        70        80       
          SRP19_METJA     1 MIIWPSYIDKKKSRREGRKVPEELAIEKPSLKDIEKALKKLGLEPKIYRDKRYPRQHWEICGCVEVDYKGNKLQLLKEICKIIKGKN  87
               SCOP domains d1lnga_ A: SRP19                                                                        SCOP domains
               CATH domains 1lngA00 A:1-87 SRP19                                                                    CATH domains
               Pfam domains SRP19-1lngA01 A:1-87                                                                    Pfam domains
         Sec.struct. author .eehhhhh.....................hhhhhhhhhhhh....eee....hhhhh.....eee.....hhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------- Transcript
                 1lng A   1 MIIWPSYIDKKKSRREGRKVPEELAIEKPSLKDIEKALKKLGLEPKIYRDKRYPRQHWEICGCVEVDYKGNKLQLLKEICKIIKGKN  87
                                    10        20        30        40        50        60        70        80       


Chain B from PDB  Type:RNA  Length:97
                                                                                                                                 
                 1lng B 140 UCGGCGGUGGGGGAGCAUCUCCUGUAGGGGAGAUGUAACCCCCUUUACCUGCCGAACCCCGCCAGGCCCGGAAGGGAGCAACGGUAGGCAGGACGUC 236
                                   149       159       169       179       189       199       209       219       229
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  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: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: no clan defined [family: SRP19] (9)

(-) Gene Ontology  (7, 7)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (SRP19_METJA | Q58440)
molecular function
    GO:0008312    7S RNA binding    Interacting selectively and non-covalently with 7S RNA, the RNA component of the signal recognition particle (SRP).
    GO:0003723    RNA binding    Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
biological process
    GO:0006614    SRP-dependent cotranslational protein targeting to membrane    The targeting of proteins to a membrane that occurs during translation and is dependent upon two key components, the signal-recognition particle (SRP) and the SRP receptor. SRP is a cytosolic particle that transiently binds to the endoplasmic reticulum (ER) signal sequence in a nascent protein, to the large ribosomal unit, and to the SRP receptor in the ER membrane.
    GO:0006612    protein targeting to membrane    The process of directing proteins towards a membrane, usually using signals contained within the 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:0030529    intracellular ribonucleoprotein complex    An intracellular macromolecular complex containing both protein and RNA molecules.
    GO:0048500    signal recognition particle    A complex of protein and RNA which facilitates translocation of proteins across membranes.

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 Related Entries

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

UniProtKB/Swiss-Prot
        SRP19_METJA | Q58440: 1l9a 2v3c 3ndb 4xco

(-) Related Entries Specified in the PDB File

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