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(-) Description

Title :  THE N-GLYCOSIDASE MECHANISM OF RIBOSOME-INACTIVATING PROTEINS IMPLIED BY CRYSTAL STRUCTURES OF ALPHA-MOMORCHARIN
 
Authors :  J. Ren, Y. Wang, Y. Dong, D. I. Stuart
Date :  07 Jan 94  (Deposition) - 22 Jun 94  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A
Keywords :  Glycosidase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. Ren, Y. Wang, Y. Dong, D. I. Stuart
The N-Glycosidase Mechanism Of Ribosome-Inactivating Proteins Implied By Crystal Structures Of Alpha-Momorcharin.
Structure V. 2 7 1994
PubMed-ID: 8075985  |  Reference-DOI: 10.1016/S0969-2126(00)00004-6
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ALPHA-MOMORCHARIN
    Chains: A
    EC Number: 3.2.2.22
    Engineered: YES
    Organism Common: BALSAM PEAR
    Organism Scientific: MOMORDICA CHARANTIA
    Organism Taxid: 3673

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

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

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1CATAUTHORTYR A:70 , GLU A:160 , ARG A:163CATALYTIC SITE

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SHIGA_RICINPS00275 Shiga/ricin ribosomal inactivating toxins active site signature.RIP1_MOMCH178-194  1A:155-171

(-) Exons   (0, 0)

(no "Exon" information available for 1AHC)

(-) 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:246
 aligned with RIP1_MOMCH | P16094 from UniProtKB/Swiss-Prot  Length:286

    Alignment length:246
                                    33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263      
           RIP1_MOMCH    24 DVSFRLSGADPRSYGMFIKDLRNALPFREKVYNIPLLLPSVSGAGRYLLMHLFNYDGKTITVAVDVTNVYIMGYLADTTSYFFNEPAAELASQYVFRDARRKITLPYSGNYERLQIAAGKPREKIPIGLPALDSAISTLLHYDSTAAAGALLVLIQTTAEAARFKYIEQQIQERAYRDEVPSLATISLENSWSGLSKQIQLAQGNNGIFRTPIVLVDNKGNRVQITNVTSKVVTSNIQLLLNTRNI 269
               SCOP domains d1ahca_ A: alpha-Momorcharin (momordin)                                                                                                                                                                                                                SCOP domains
               CATH domains 1ahcA01 A:1-162 Ricin (A subunit), domain 1                                                                                                                       1ahcA02 A:163-246 Ricin (A Subunit), domain 2                                        CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eeee....hhhhhhhhhhhhhhhh.eeeee..eeee....hhhh.eeeeeee.....eeeeeee.....eeeeee..eeee..hhhhhhhhh.......eeee.....hhhhhhhhhh.hhhhh..hhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhh....eeeeeeeee.....eeeeee..hhhhhhh.....hhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------SHIGA_RICIN      --------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1ahc A   1 DVSFRLSGADPRSYGMFIKDLRNALPFREKVYNIPLLLPSVSGAGRYLLMHLFNYDGKTITVAVDVTNVYIMGYLADTTSYFFNEPAAELASQYVFRDARRKITLPYSGNYERLQIAAGKPREKIPIGLPALDSAISTLLHYDSTAAAGALLVLIQTTAEAARFKYIEQQIQERAYRDEVPSLATISLENSWSGLSKQIQLAQGNNGIFRTPIVLVDNKGNRVQITNVTSKVVTSNIQLLLNTRNI 246
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240
   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  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (2, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Few Secondary Structures (1120)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (4, 4)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (RIP1_MOMCH | P16094)
molecular function
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0030598    rRNA N-glycosylase activity    Catalysis of the hydrolysis of the N-glycosylic bond at A-4324 in 28S rRNA from rat ribosomes or corresponding sites in 28S RNA from other species.
biological process
    GO:0006952    defense response    Reactions, triggered in response to the presence of a foreign body or the occurrence of an injury, which result in restriction of damage to the organism attacked or prevention/recovery from the infection caused by the attack.
    GO:0017148    negative regulation of translation    Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of proteins by the translation of mRNA or circRNA.

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  1ahc
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  3.2.2.22
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 Related Entries

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

UniProtKB/Swiss-Prot
        RIP1_MOMCH | P16094: 1aha 1ahb 1f8q 1mom 1mrg 1mrh 1mri 4yp2 5cf9

(-) Related Entries Specified in the PDB File

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