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(-) Description

Title :  CRYSTAL STRUCTURE OF THE INACTIVE STATE OF THE SMASE I, A SPHINGOMYELINASE D FROM LOXOSCELES LAETA VENOM
 
Authors :  M. T. Murakami, A. Gabdoulkhakov, M. F. Fernandes-Pedrosa, C. Betzel, D. V. Tambourgi, R. K. Arni
Date :  06 Dec 05  (Deposition) - 27 Jun 06  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.85
Chains :  Asym. Unit :  A,B,C,D
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Biol. Unit 3:  C  (1x)
Biol. Unit 4:  D  (1x)
Biol. Unit 5:  A (1x),B (1x),C (1x),D (1x)
Biol. Unit 6:  A,B  (1x)
Biol. Unit 7:  C,D  (1x)
Keywords :  Sphingomyelinase D, Catalytic Activity, Magnesium-Binding Site, Inactive State, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  M. T. Murakami, A. Gabdoulkhakov, M. F. Fernandes-Pedrosa, D. V. Tambourgi, R. K. Arni
Structural Basis For Metal Ion Coordination And The Catalytic Mechanism Of Sphingomyelinases D.
J. Biol. Chem. V. 280 13658 2005
PubMed-ID: 15654080  |  Reference-DOI: 10.1074/JBC.M412437200

(-) Compounds

Molecule 1 - SPHINGOMYELINASE D 1
    ChainsA, B, C, D
    EC Number3.1.4.41
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21
    Expression System StrainBL21
    Expression System Taxid511693
    Organism ScientificLOXOSCELES LAETA
    Organism Taxid58217
    SynonymSPHINGOMYELINASE I, SMASE I

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit ABCD
Biological Unit 1 (1x)A   
Biological Unit 2 (1x) B  
Biological Unit 3 (1x)  C 
Biological Unit 4 (1x)   D
Biological Unit 5 (1x)A (1x)B (1x)C (1x)D (1x)
Biological Unit 6 (1x)AB  
Biological Unit 7 (1x)  CD

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 7)

Asymmetric Unit (2, 7)
No.NameCountTypeFull Name
1EPE3Ligand/Ion4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
2MG4Ligand/IonMAGNESIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1EPE-1Ligand/Ion4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
2MG-1Ligand/IonMAGNESIUM ION
Biological Unit 2 (1, 1)
No.NameCountTypeFull Name
1EPE1Ligand/Ion4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
2MG-1Ligand/IonMAGNESIUM ION
Biological Unit 3 (1, 1)
No.NameCountTypeFull Name
1EPE1Ligand/Ion4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
2MG-1Ligand/IonMAGNESIUM ION
Biological Unit 4 (1, 1)
No.NameCountTypeFull Name
1EPE1Ligand/Ion4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
2MG-1Ligand/IonMAGNESIUM ION
Biological Unit 5 (1, 2)
No.NameCountTypeFull Name
1EPE2Ligand/Ion4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
2MG-1Ligand/IonMAGNESIUM ION
Biological Unit 6 (1, 1)
No.NameCountTypeFull Name
1EPE1Ligand/Ion4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
2MG-1Ligand/IonMAGNESIUM ION
Biological Unit 7 (1, 2)
No.NameCountTypeFull Name
1EPE2Ligand/Ion4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
2MG-1Ligand/IonMAGNESIUM ION

(-) Sites  (7, 7)

Asymmetric Unit (7, 7)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU A:32 , ASP A:34 , ASP A:91 , TRP A:230 , HOH A:719BINDING SITE FOR RESIDUE MG A 601
2AC2SOFTWAREGLU B:32 , ASP B:34 , ASP B:91 , HOH B:733 , HOH B:734BINDING SITE FOR RESIDUE MG B 602
3AC3SOFTWAREGLU C:32 , ASP C:34 , ASP C:91BINDING SITE FOR RESIDUE MG C 603
4AC4SOFTWAREGLU D:32 , ASP D:34 , ASP D:91 , TRP D:230 , HOH D:767BINDING SITE FOR RESIDUE MG D 604
5AC5SOFTWAREALA B:16 , ARG B:59 , TRP B:60 , GLU B:61 , TYR B:62 , VAL B:65 , HOH B:726 , HOH B:741 , HOH B:794BINDING SITE FOR RESIDUE EPE B 701
6AC6SOFTWAREARG B:4 , ASN B:267 , ALA C:16 , ARG C:59 , TRP C:60 , GLU C:61 , VAL C:65 , HOH C:751BINDING SITE FOR RESIDUE EPE C 703
7AC7SOFTWAREARG A:4 , ASN A:267 , ALA D:16 , ARG D:59 , TRP D:60 , GLU D:61 , HOH D:758BINDING SITE FOR RESIDUE EPE D 704

(-) SS Bonds  (4, 4)

Asymmetric Unit
No.Residues
1A:51 -A:57
2B:51 -B:57
3C:51 -C:57
4D:51 -D:57

(-) Cis Peptide Bonds  (16, 16)

Asymmetric Unit
No.Residues
1Thr A:49 -Pro A:50
2Gly A:167 -Pro A:168
3Leu A:170 -Pro A:171
4Trp A:230 -Ser A:231
5Thr B:49 -Pro B:50
6Gly B:167 -Pro B:168
7Leu B:170 -Pro B:171
8Trp B:230 -Ser B:231
9Thr C:49 -Pro C:50
10Gly C:167 -Pro C:168
11Leu C:170 -Pro C:171
12Trp C:230 -Ser C:231
13Thr D:49 -Pro D:50
14Gly D:167 -Pro D:168
15Leu D:170 -Pro D:171
16Trp D:230 -Ser D:231

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2F9R)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2F9R)

(-) Exons   (0, 0)

(no "Exon" information available for 2F9R)

(-) 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:285
 aligned with A311_LOXLA | Q8I914 from UniProtKB/Swiss-Prot  Length:311

    Alignment length:285
                                    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     
           A311_LOXLA    27 ADNRRPIWNLAHMVNAVAQIPDFLDLGANALEADVTFKGSVPTYTYHGTPCDFGRDCIRWEYFNVFLKTLREYTTPGNAKYRDGFILFVLDLKTGSLSNDQVRPAGENVAKELLQNYWNNGNNGGRAYVVLSLPDIGHYEFVRGFKEVLKKEGHEDLLEKVGYDFSGPYLPSLPTLDATHEAYKKAGVDGHIWLSDGLTNFSPLGDMARLKEAIKSRDSANGFINKIYYWSVDKVSTTKAALDVGVDGIMTNYPNVLIGVLKESGYNDKYRLATYDDNPWETFKN 311
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 2f9rA00 A:1-285 Phosphatidylinositol (PI) phosphodiesterase                                                                                                                                                                                                                                   CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeeeee......hhhhhhhhhh..eeeeeeeee..eeeeee.............eeehhhhhhhhhhhhh...........eeeeee.....hhhhhhhhhhhhhhhhhhhhhhhhh.....eeeeee.hhhhhhhhhhhhhhhhhh.hhhhhh.eeeee.........hhhhhhhhhhhhh.....eeee.....hhhhhhhhhhhhhhhhh.......eeeee...hhhhhhhhhhhh..eeee.hhhhhhhhhhh......eee............. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2f9r A   1 ADNRRPIWNLAHMVNAVAQIPDFLDLGANALEADVTFKGSVPTYTYHGTPCDFGRDCIRWEYFNVFLKTLREYTTPGNAKYRDGFILFVLDLKTGSLSNDQVRPAGENVAKELLQNYWNNGNNGGRAYVVLSLPDIGHYEFVRGFKEVLKKEGHEDLLEKVGYDFSGPYLPSLPTLDATHEAYKKAGVDGHIWLSDGLTNFSPLGDMARLKEAIKSRDSANGFINKIYYWSVDKVSTTKAALDVGVDGIMTNYPNVLIGVLKESGYNDKYRLATYDDNPWETFKN 285
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280     

Chain B from PDB  Type:PROTEIN  Length:285
 aligned with A311_LOXLA | Q8I914 from UniProtKB/Swiss-Prot  Length:311

    Alignment length:285
                                    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     
           A311_LOXLA    27 ADNRRPIWNLAHMVNAVAQIPDFLDLGANALEADVTFKGSVPTYTYHGTPCDFGRDCIRWEYFNVFLKTLREYTTPGNAKYRDGFILFVLDLKTGSLSNDQVRPAGENVAKELLQNYWNNGNNGGRAYVVLSLPDIGHYEFVRGFKEVLKKEGHEDLLEKVGYDFSGPYLPSLPTLDATHEAYKKAGVDGHIWLSDGLTNFSPLGDMARLKEAIKSRDSANGFINKIYYWSVDKVSTTKAALDVGVDGIMTNYPNVLIGVLKESGYNDKYRLATYDDNPWETFKN 311
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 2f9rB00 B:1-285 Phosphatidylinositol (PI) phosphodiesterase                                                                                                                                                                                                                                   CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeeeee......hhhhhhhhh...eeeeeeeee..eeeeee.............eeehhhhhhhhhhhh............eeeeee.....hhhhhhhhhhhhhhhhhhhhhhhhh.....eeeeee.hhhhhhhhhhhhhhhhhh.hhhhhh.eeeee.........hhhhhhhhhhhhh.....eeee.....hhhhhhhhhhhhhhhhhh......eeee....hhhhhhhhhhhh..eeee.hhhhhhhhhhh......eee............. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2f9r B   1 ADNRRPIWNLAHMVNAVAQIPDFLDLGANALEADVTFKGSVPTYTYHGTPCDFGRDCIRWEYFNVFLKTLREYTTPGNAKYRDGFILFVLDLKTGSLSNDQVRPAGENVAKELLQNYWNNGNNGGRAYVVLSLPDIGHYEFVRGFKEVLKKEGHEDLLEKVGYDFSGPYLPSLPTLDATHEAYKKAGVDGHIWLSDGLTNFSPLGDMARLKEAIKSRDSANGFINKIYYWSVDKVSTTKAALDVGVDGIMTNYPNVLIGVLKESGYNDKYRLATYDDNPWETFKN 285
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280     

Chain C from PDB  Type:PROTEIN  Length:285
 aligned with A311_LOXLA | Q8I914 from UniProtKB/Swiss-Prot  Length:311

    Alignment length:285
                                    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     
           A311_LOXLA    27 ADNRRPIWNLAHMVNAVAQIPDFLDLGANALEADVTFKGSVPTYTYHGTPCDFGRDCIRWEYFNVFLKTLREYTTPGNAKYRDGFILFVLDLKTGSLSNDQVRPAGENVAKELLQNYWNNGNNGGRAYVVLSLPDIGHYEFVRGFKEVLKKEGHEDLLEKVGYDFSGPYLPSLPTLDATHEAYKKAGVDGHIWLSDGLTNFSPLGDMARLKEAIKSRDSANGFINKIYYWSVDKVSTTKAALDVGVDGIMTNYPNVLIGVLKESGYNDKYRLATYDDNPWETFKN 311
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 2f9rC00 C:1-285 Phosphatidylinositol (PI) phosphodiesterase                                                                                                                                                                                                                                   CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeeeee......hhhhhhhhhh..eeeeeeeee..eeeeee.............eeehhhhhhhhhhhh............eeeeee.....hhhhhhhhhhhhhhhhhhhhhhhhh.....eeeeee....hhhhhhhhhhhhhhh.hhhhhh.eeeee.........hhhhhhhhhhhhh.....eeee.....hhhhhhhhhhhhhhhhh.......eeee....hhhhhhhhhhhh..eeee.hhhhhhhhh........eee............. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2f9r C   1 ADNRRPIWNLAHMVNAVAQIPDFLDLGANALEADVTFKGSVPTYTYHGTPCDFGRDCIRWEYFNVFLKTLREYTTPGNAKYRDGFILFVLDLKTGSLSNDQVRPAGENVAKELLQNYWNNGNNGGRAYVVLSLPDIGHYEFVRGFKEVLKKEGHEDLLEKVGYDFSGPYLPSLPTLDATHEAYKKAGVDGHIWLSDGLTNFSPLGDMARLKEAIKSRDSANGFINKIYYWSVDKVSTTKAALDVGVDGIMTNYPNVLIGVLKESGYNDKYRLATYDDNPWETFKN 285
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280     

Chain D from PDB  Type:PROTEIN  Length:285
 aligned with A311_LOXLA | Q8I914 from UniProtKB/Swiss-Prot  Length:311

    Alignment length:285
                                    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     
           A311_LOXLA    27 ADNRRPIWNLAHMVNAVAQIPDFLDLGANALEADVTFKGSVPTYTYHGTPCDFGRDCIRWEYFNVFLKTLREYTTPGNAKYRDGFILFVLDLKTGSLSNDQVRPAGENVAKELLQNYWNNGNNGGRAYVVLSLPDIGHYEFVRGFKEVLKKEGHEDLLEKVGYDFSGPYLPSLPTLDATHEAYKKAGVDGHIWLSDGLTNFSPLGDMARLKEAIKSRDSANGFINKIYYWSVDKVSTTKAALDVGVDGIMTNYPNVLIGVLKESGYNDKYRLATYDDNPWETFKN 311
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 2f9rD00 D:1-285 Phosphatidylinositol (PI) phosphodiesterase                                                                                                                                                                                                                                   CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeeeee......hhhhhhhhh...eeeeeeeee..eeeeee.............eeehhhhhhhhhhhhh...........eeeeee.....hhhhhhhhhhhhhhhhhhhhhhhhh.....eeeeee....hhhhhhhhhhhhhhh.hhhhhh.eeeee.........hhhhhhhhhhhhh.....eeee.....hhhhhhhhhhhhhhhhhh......eeeee...hhhhhhhhhhhh..eeee.hhhhhhhhhhh......eee............. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2f9r D   1 ADNRRPIWNLAHMVNAVAQIPDFLDLGANALEADVTFKGSVPTYTYHGTPCDFGRDCIRWEYFNVFLKTLREYTTPGNAKYRDGFILFVLDLKTGSLSNDQVRPAGENVAKELLQNYWNNGNNGGRAYVVLSLPDIGHYEFVRGFKEVLKKEGHEDLLEKVGYDFSGPYLPSLPTLDATHEAYKKAGVDGHIWLSDGLTNFSPLGDMARLKEAIKSRDSANGFINKIYYWSVDKVSTTKAALDVGVDGIMTNYPNVLIGVLKESGYNDKYRLATYDDNPWETFKN 285
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280     

   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  (0, 0)

(no "SCOP Domain" information available for 2F9R)

(-) CATH Domains  (1, 4)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2F9R)

(-) Gene Ontology  (9, 9)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C,D   (A311_LOXLA | Q8I914)
molecular function
    GO:0070290    N-acylphosphatidylethanolamine-specific phospholipase D activity    Catalysis of the release of N-acylethanolamine from N-acyl-phosphatidylethanolamine (NAPE) to generate N-acylethanolamine (NAE).
    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:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0004630    phospholipase D activity    Catalysis of the reaction: a phosphatidylcholine + H2O = choline + a phosphatidate.
    GO:0008081    phosphoric diester hydrolase activity    Catalysis of the hydrolysis of a phosphodiester to give a phosphomonoester and a free hydroxyl group.
biological process
    GO:0019835    cytolysis    The rupture of cell membranes and the loss of cytoplasm.
    GO:0044179    hemolysis in other organism    The cytolytic destruction of red blood cells, with the release of intracellular hemoglobin, in one organism by another.
    GO:0006629    lipid metabolic process    The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids.
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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

UniProtKB/Swiss-Prot
        A311_LOXLA | Q8I9141xx1

(-) Related Entries Specified in the PDB File

1xx1 THE SAME PROTEIN IN THE ACTIVE STATE