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(-) Description

Title :  STRUCTURE OF THE LARGE GAMMA SUBUNIT OF INITIATION FACTOR EIF2 FROM PYROCOCCUS ABYSSI-G235D MUTANT
 
Authors :  E. Schmitt, S. Blanquet, Y. Mechulam
Date :  06 Dec 01  (Deposition) - 10 Apr 02  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.85
Chains :  Asym./Biol. Unit :  A
Keywords :  Initiation Of Translation (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  E. Schmitt, S. Blanquet, Y. Mechulam
The Large Subunit Of Initiation Factor Aif2 Is A Close Structural Homologue Of Elongation Factors.
Embo J. V. 21 1821 2002
PubMed-ID: 11927566  |  Reference-DOI: 10.1093/EMBOJ/21.7.1821
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - EIF2GAMMA
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET3A
    Expression System Strain: BL21-DE3
    Expression System Taxid: 469008
    Mutation: YES
    Organism Scientific: PYROCOCCUS ABYSSI
    Organism Taxid: 29292

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1ZN1Ligand/IonZINC ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARECYS A:60 , CYS A:63 , CYS A:72 , CYS A:75BINDING SITE FOR RESIDUE ZN A 411

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Arg A:252 -Pro A:253

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1KJZ)

(-) 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:400
 aligned with IF2G_PYRAB | Q9V1G0 from UniProtKB/Swiss-Prot  Length:411

    Alignment length:405
                                    16        26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296       306       316       326       336       346       356       366       376       386       396       406     
           IF2G_PYRAB     7 SRQAEVNIGMVGHVDHGKTTLTKALTGVWTDTHSEELRRGITIKIGFADAEIRRCPNCGRYSTSPVCPYCGHETEFVRRVSFIDAPGHEALMTTMLAGASLMDGAILVIAANEPCPRPQTREHLMALQIIGQKNIIIAQNKIELVDKEKALENYRQIKEFIEGTVAENAPIIPISALHGANIDVLVKAIEDFIPTPKRDPNKPPKMLVLRSFDVNKPGTPPEKLVGGVLGGSIVQGKLKVGDEIEIRPGVPYEEHGRIKYEPITTEIVSLQAGGQFVEEAYPGGLVGVGTKLDPYLTKGDLMAGNVVGKPGKLPPVWDSLRLEVHLLERVVGTEQELKVEPIKRKEVLLLNVGTARTMGLVTGLGKDEIEVKLQIPVCAEPGDRVAISRQIGSRWRLIGYGIIKE 411
               SCOP domains d1kjza3 A:6-200 Initiation fact or eIF2 gamma subunit, N-terminal (G) domain                                                                                                                       d1kjza1 A:201-321 Initi    ation factor eIF2 gamma subunit, domain II                                                    d1kjza2 A:322-410 Initiation factor eIF2 gamma subunit                                    SCOP domains
               CATH domains 1kjzA01 A:6-203 P-loop containi ng nucleotide triphosphate hydrolases                                                                                                                                 1kjzA02 A:204-318 Tr    anslation factors                                                                          1kjzA03 A:319-410 Translation factors                                                        CATH domains
               Pfam domains --GTP_EFTU-1kjzA01 A:8-200                                                                                                                                                                         -----------------------    ---GTP_EFTU_D2-1kjzA02 A:231-313                                                      --------eIF2_C-1kjzA03 A:322-408                                                               -- Pfam domains
         Sec.struct. author ......eeeee.....hhhhhhhhhhh....-.............eeeeeeeee......ee............eeeeeeeeee..hhhhhhhhhhhhhhhh.eeeeeee......hhhhhhhhhhhhhhh...eeeeee.hhhhhhhhhhhhhhhhhhhhh........eeee......hhhhhhhhhhhhh...........eeeeeeee......----.....eeeeeeee..ee...eeeeeeeeeeee..eeeeeeeeeeeeeeee..eee.ee.....eeeee..hhhhhhhhh....eee.......eeeeeeeeeee......hhhhhh........eeeeee..eeeeeeeeeee..eeeeeeeeeee.....eeeeeeee..eeeeeeeeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1kjz A   6 SRQAEVNIGMVGHVDHGKTTLTKALTGVWTD-HSEELRRGITIKIGFADAEIRRCPNCGRYSTSPVCPYCGHETEFVRRVSFIDAPGHEALMTTMLAGASLMDGAILVIAANEPCPRPQTREHLMALQIIGQKNIIIAQNKIELVDKEKALENYRQIKEFIEGTVAENAPIIPISALHGANIDVLVKAIEDFIPTPKRDPNKPPKMLVLRSFDVNKPG----KLVGGVLDGSIVQGKLKVGDEIEIRPGVPYEEHGRIKYEPITTEIVSLQAGGQFVEEAYPGGLVGVGTKLDPYLTKGDLMAGNVVGKPGKLPPVWDSLRLEVHLLERVVGTEQELKVEPIKRKEVLLLNVGTARTMGLVTGLGKDEIEVKLQIPVCAEPGDRVAISRQIGSRWRLIGYGIIKE 410
                                    15        25        35| |     45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       | -  |    235       245       255       265       275       285       295       305       315       325       335       345       355       365       375       385       395       405     
                                                         36 |                                                                                                                                                                                      223  228                                                                                                                                                                                      
                                                           38
   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
(-)
Class: All beta proteins (24004)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (2, 3)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (3, 3)

Asymmetric/Biological Unit
(-)
Clan: P-loop_NTPase (1112)
(-)
Clan: no clan defined [family: GTP_EFTU_D2] (39)
(-)
Clan: no clan defined [family: eIF2_C] (10)

(-) Gene Ontology  (8, 8)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (IF2G_PYRAB | Q9V1G0)
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.
    GO:0003746    translation elongation factor activity    Functions in chain elongation during polypeptide synthesis at the ribosome.
    GO:0003743    translation initiation factor activity    Functions in the initiation of ribosome-mediated translation of mRNA into a polypeptide.
biological process
    GO:0006412    translation    The cellular metabolic process in which a protein is formed, using the sequence of a mature mRNA or circRNA molecule to specify the sequence of amino acids in a polypeptide chain. Translation is mediated by the ribosome, and begins with the formation of a ternary complex between aminoacylated initiator methionine tRNA, GTP, and initiation factor 2, which subsequently associates with the small subunit of the ribosome and an mRNA or circRNA. Translation ends with the release of a polypeptide chain from the ribosome.
    GO:0006414    translational elongation    The successive addition of amino acid residues to a nascent polypeptide chain during protein biosynthesis.
    GO:0006413    translational initiation    The process preceding formation of the peptide bond between the first two amino acids of a protein. This includes the formation of a complex of the ribosome, mRNA or circRNA, and an initiation complex that contains the first aminoacyl-tRNA.

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 Related Entries

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

UniProtKB/Swiss-Prot
        IF2G_PYRAB | Q9V1G0: 1kk0 1kk1 1kk2 1kk3

(-) Related Entries Specified in the PDB File

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