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(-) Description

Title :  ENZYME IIA FROM THE LACTOSE SPECIFIC PTS FROM LACTOCOCCUS LACTIS
 
Authors :  P. Sliz, R. Engelmann, W. Hengstenberg, E. F. Pai
Date :  25 Apr 97  (Deposition) - 29 Apr 98  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.30
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A,B,C  (1x)
Biol. Unit 2:  A,B,C  (2x)
Keywords :  Enzyme Iia, Helical Bundles, Pts, Transferase, Phosphotransferase System (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  P. Sliz, R. Engelmann, W. Hengstenberg, E. F. Pai
The Structure Of Enzyme Iialactose From Lactococcus Lactis Reveals A New Fold And Points To Possible Interactions Of A Multicomponent System.
Structure V. 5 775 1997
PubMed-ID: 9261069  |  Reference-DOI: 10.1016/S0969-2126(97)00232-3
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ENZYME IIA
    Chains: A, B, C
    EC Number: 2.7.1.69
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Gene: LACF
    Organism Scientific: LACTOCOCCUS LACTIS
    Organism Taxid: 1358
    Strain: MG1820
    Synonym: ENZYME III, LACTOSE-SPECIFIC IIA COMPONENT

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit : ABC
Biological Unit 1 (1x): ABC
Biological Unit 2 (2x): ABC

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1MG1Ligand/IonMAGNESIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1MG-1Ligand/IonMAGNESIUM ION
Biological Unit 2 (0, 0)
No.NameCountTypeFull Name
1MG-1Ligand/IonMAGNESIUM ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:81 , HOH A:128 , HOH A:129 , ASP B:81 , HOH B:116 , ASP C:81BINDING SITE FOR RESIDUE MG C 106

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1E2A)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1E2A)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1E2A)

(-) PROSITE Motifs  (1, 3)

Asymmetric Unit (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PTS_EIIA_TYPE_3PS51095 PTS_EIIA type-3 domain profile.PTLA_LACLL4-102
 
 		  3A:4-102
B:4-102
C:4-102
Biological Unit 1 (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PTS_EIIA_TYPE_3PS51095 PTS_EIIA type-3 domain profile.PTLA_LACLL4-102
 
 		  3A:4-102
B:4-102
C:4-102
Biological Unit 2 (1, 6)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PTS_EIIA_TYPE_3PS51095 PTS_EIIA type-3 domain profile.PTLA_LACLL4-102
 
 		  6A:4-102
B:4-102
C:4-102

(-) Exons   (0, 0)

(no "Exon" information available for 1E2A)

(-) 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:102
 aligned with PTLA_LACLL | P23532 from UniProtKB/Swiss-Prot  Length:105

    Alignment length:102
                                    10        20        30        40        50        60        70        80        90       100  
           PTLA_LACLL     1 MNREEMTLLGFEIVAYAGDARSKLLEALKAAENGDFAKADSLVVEAGSCIAEAHSSQTGMLAREASGEELPYSVTMMHGQDHLMTTILLKDVIHHLIELYKR 102
               SCOP domains d1e2aa_ A: Enzyme IIa from lactose specific PTS, IIa-lac                                               SCOP domains
               CATH domains 1e2aA00 A:1-102  [code=1.20.58.80, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---PTS_EIIA_TYPE_3  PDB: A:4-102 UniProt: 4-102                                                        PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------ Transcript
                 1e2a A   1 MNREEMTLLGFEIVAYAGDARSKLLEALKAAENGDFAKADSLVVEAGSCIAEAHSSQTGMLAREASGEELPYSVTMMHGQDHLMTTILLKDVIHHLIELYKR 102
                                    10        20        30        40        50        60        70        80        90       100  


Chain B from PDB  Type:PROTEIN  Length:102
 aligned with PTLA_LACLL | P23532 from UniProtKB/Swiss-Prot  Length:105

    Alignment length:102
                                    10        20        30        40        50        60        70        80        90       100  
           PTLA_LACLL     1 MNREEMTLLGFEIVAYAGDARSKLLEALKAAENGDFAKADSLVVEAGSCIAEAHSSQTGMLAREASGEELPYSVTMMHGQDHLMTTILLKDVIHHLIELYKR 102
               SCOP domains d1e2ab_ B: Enzyme IIa from lactose specific PTS, IIa-lac                                               SCOP domains
               CATH domains 1e2aB00 B:1-102  [code=1.20.58.80, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---PTS_EIIA_TYPE_3  PDB: B:4-102 UniProt: 4-102                                                        PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------ Transcript
                 1e2a B   1 MNREEMTLLGFEIVAYAGDARSKLLEALKAAENGDFAKADSLVVEAGSCIAEAHSSQTGMLAREASGEELPYSVTMMHGQDHLMTTILLKDVIHHLIELYKR 102
                                    10        20        30        40        50        60        70        80        90       100  


Chain C from PDB  Type:PROTEIN  Length:102
 aligned with PTLA_LACLL | P23532 from UniProtKB/Swiss-Prot  Length:105

    Alignment length:102
                                    10        20        30        40        50        60        70        80        90       100  
           PTLA_LACLL     1 MNREEMTLLGFEIVAYAGDARSKLLEALKAAENGDFAKADSLVVEAGSCIAEAHSSQTGMLAREASGEELPYSVTMMHGQDHLMTTILLKDVIHHLIELYKR 102
               SCOP domains d1e2ac_ C: Enzyme IIa from lactose specific PTS, IIa-lac                                               SCOP domains
               CATH domains 1e2aC00 C:1-102  [code=1.20.58.80, no name defined]                                                    CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ---PTS_EIIA_TYPE_3  PDB: C:4-102 UniProt: 4-102                                                        PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------ Transcript
                 1e2a C   1 MNREEMTLLGFEIVAYAGDARSKLLEALKAAENGDFAKADSLVVEAGSCIAEAHSSQTGMLAREASGEELPYSVTMMHGQDHLMTTILLKDVIHHLIELYKR 102
                                    10        20        30        40        50        60        70        80        90       100
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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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, 3)

Asymmetric Unit
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (1, 3)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1E2A)

(-) Gene Ontology  (6, 6)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C   (PTLA_LACLL | P23532)
molecular function
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
biological process
    GO:0008643    carbohydrate transport    The directed movement of carbohydrate into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Carbohydrates are any of a group of organic compounds based of the general formula Cx(H2O)y.
    GO:0009401    phosphoenolpyruvate-dependent sugar phosphotransferase system    The uptake and phosphorylation of specific carbohydrates from the extracellular environment; uptake and phosphorylation are coupled, making the PTS a link between the uptake and metabolism of sugars; phosphoenolpyruvate is the original phosphate donor; phosphoenolpyruvate passes the phosphate via a signal transduction pathway, to enzyme 1 (E1), which in turn passes it on to the histidine protein, HPr; the next step in the system involves sugar-specific membrane-bound complex, enzyme 2 (EII), which transports the sugar into the cell; it includes the sugar permease, which catalyzes the transport reactions; EII is usually divided into three different domains, EIIA, EIIB, and EIIC.
    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.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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  1e2a
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        PTLA_LACLL | P23532: 2e2a

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