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(-) Description

Title :  NEW CRYSTAL STRUCTURE OF HUMAN TEAR LIPOCALIN IN COMPLEX WITH 1,4-BUTANEDIOL IN SPACE GROUP P21
 
Authors :  D. A. Breustedt, L. Keil, A. Skerra
Date :  20 Oct 08  (Deposition) - 06 Oct 09  (Release) - 06 Oct 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.60
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)
Keywords :  Transport Protein, Ligand-Binding Protein, Beta-Barrel, Secreted, Sensory Transduction, Taste, Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  D. A. Breustedt, L. Chatwell, A. Skerra
A New Crystal Form Of Human Tear Lipocalin Reveals High Flexibility In The Loop Region And Induced Fit In The Ligand Cavity
Acta Crystallogr. , Sect. D V. 65 1118 2009
PubMed-ID: 19770509  |  Reference-DOI: 10.1107/S0907444909031011
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - LIPOCALIN-1
    ChainsA, B, C, D
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPTLC3
    Expression System StrainJM83
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentRESIDUES 5-166
    GeneLCN1
    MutationYES
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymVON EBNER GLAND PROTEIN, VEG PROTEIN, TEAR PREALBUMIN, TP, TEAR LIPOCALIN, TLC

 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

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 4)

Asymmetric Unit (1, 4)
No.NameCountTypeFull Name
1BU14Ligand/Ion1,4-BUTANEDIOL
Biological Unit 1 (1, 1)
No.NameCountTypeFull Name
1BU11Ligand/Ion1,4-BUTANEDIOL
Biological Unit 2 (1, 1)
No.NameCountTypeFull Name
1BU11Ligand/Ion1,4-BUTANEDIOL
Biological Unit 3 (1, 1)
No.NameCountTypeFull Name
1BU11Ligand/Ion1,4-BUTANEDIOL
Biological Unit 4 (1, 1)
No.NameCountTypeFull Name
1BU11Ligand/Ion1,4-BUTANEDIOL

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREMET A:39 , PHE A:99 , HOH A:169BINDING SITE FOR RESIDUE BU1 A 1
2AC2SOFTWAREMET B:39 , LEU B:41 , PHE B:99 , HOH B:167BINDING SITE FOR RESIDUE BU1 B 1
3AC3SOFTWAREVAL C:13 , MET C:39 , LEU C:41 , PHE C:99BINDING SITE FOR RESIDUE BU1 C 1
4AC4SOFTWAREMET D:39 , LEU D:41 , PHE D:99 , HOH D:191BINDING SITE FOR RESIDUE BU1 D 1

(-) SS Bonds  (4, 4)

Asymmetric Unit
No.Residues
1A:61 -A:153
2B:61 -B:153
3C:61 -C:153
4D:61 -D:153

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3EYC)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3EYC)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3EYC)

(-) Exons   (6, 22)

Asymmetric Unit (6, 22)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1bENST000003717811bENSE00001456083chr9:138413301-138413433133LCN1_HUMAN1-30302-
B:12-12
C:12-12
-
-
1
1
-
1.2ENST000003717812ENSE00001791131chr9:138413893-138414023131LCN1_HUMAN31-74444A:13-56
B:13-56 (gaps)
C:13-56 (gaps)
D:13-56 (gaps)
44
44
44
44
1.3ENST000003717813ENSE00000828356chr9:138415078-13841514871LCN1_HUMAN74-98254A:56-80
B:56-80
C:56-80
D:56-80
25
25
25
25
1.4ENST000003717814ENSE00000828355chr9:138415726-138415836111LCN1_HUMAN98-135384A:80-117
B:80-117
C:80-117 (gaps)
D:80-117 (gaps)
38
38
38
38
1.5ENST000003717815ENSE00001708103chr9:138416676-138416777102LCN1_HUMAN135-169354A:117-151
B:117-151
C:117-151
D:117-151
35
35
35
35
1.6ENST000003717816ENSE00000828353chr9:138416978-13841700427LCN1_HUMAN169-17684A:151-155
B:151-154
C:151-154
D:151-154
5
4
4
4
1.7aENST000003717817aENSE00001347956chr9:138418190-138418378189LCN1_HUMAN-00--

(-) 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:143
 aligned with LCN1_HUMAN | P31025 from UniProtKB/Swiss-Prot  Length:176

    Alignment length:143
                                    40        50        60        70        80        90       100       110       120       130       140       150       160       170   
           LCN1_HUMAN    31 VSGTWYLKAMTVDREFPEMNLESVTPMTLTTLEGGNLEAKVTMLISGRCQEVKAVLEKTDEPGKYTADGGKHVAYIIRSHVKDHYIFYCEGELHGKPVRGVKLVGRDPKNNLEALEDFEKAAGARGLSTESILIPRQSETCSP 173
               SCOP domains d3eyca_ A: Von Ebner's gland protein (VEGP, tear lipocalin)                                                                                     SCOP domains
               CATH domains 3eycA00 A:13-155  [code=2.40.128.20, no name defined]                                                                                           CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeeeee........eeee..eeeee.....eeeeeeeee..eeeeeeeeeee.....eeee....eeeeeee.eeeeeeeeeeeeee..eeeeeeeeee.....hhhhhhhhhhhhhhh.....eee.......... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.2  PDB: A:13-56 UniProt: 31-74       -----------------------Exon 1.4  PDB: A:80-117               ---------------------------------1.6   Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------Exon 1.3  PDB: A:56-80   ------------------------------------Exon 1.5  PDB: A:117-151           ---- Transcript 1 (2)
                 3eyc A  13 VSGTWYLKAMTVDREFPEMNLESVTPMTLTTLEGGNLEAKVTMLISGRCQEVKAVLEKTDEPGKYTADGGKHVAYIIRSHVKDHYIFYSEGELHGKPVRGVKLVGRDPKNNLEALEDFEKAAGARGLSTESILIPRQSETCSP 155
                                    22        32        42        52        62        72        82        92       102       112       122       132       142       152   

Chain B from PDB  Type:PROTEIN  Length:140
 aligned with LCN1_HUMAN | P31025 from UniProtKB/Swiss-Prot  Length:176

    Alignment length:143
                                    39        49        59        69        79        89        99       109       119       129       139       149       159       169   
           LCN1_HUMAN    30 DVSGTWYLKAMTVDREFPEMNLESVTPMTLTTLEGGNLEAKVTMLISGRCQEVKAVLEKTDEPGKYTADGGKHVAYIIRSHVKDHYIFYCEGELHGKPVRGVKLVGRDPKNNLEALEDFEKAAGARGLSTESILIPRQSETCS 172
               SCOP domains d3eycb_ B: Von Ebner's gland prot   ein (VEGP, tear lipocalin)                                                                                  SCOP domains
               CATH domains 3eycB00 B:12-154  [code=2.40.128.   20, no name defined]                                                                                        CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeeeee........eeee..eeee..---.eeeeeeeee..eeeeeeeeeee.....eeee....eeeeeee.eeeeeeeeeeeeee..eeeeeeeeee.....hhhhhhhhhhhhhhh.....eee..ee..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) 1Exon 1.2  PDB: B:13-56 (gaps) UniProt: 31-74-----------------------Exon 1.4  PDB: B:80-117               ---------------------------------1.6  Transcript 1 (1)
           Transcript 1 (2) --------------------------------------------Exon 1.3  PDB: B:56-80   ------------------------------------Exon 1.5  PDB: B:117-151           --- Transcript 1 (2)
                 3eyc B  12 DVSGTWYLKAMTVDREFPEMNLESVTPMTLTTL---NLEAKVTMLISGRCQEVKAVLEKTDEPGKYTADGGKHVAYIIRSHVKDHYIFYSEGELHGKPVRGVKLVGRDPKNNLEALEDFEKAAGARGLSTESILIPRQSETCS 154
                                    21        31        41  |   | 51        61        71        81        91       101       111       121       131       141       151   
                                                           44  48                                                                                                          

Chain C from PDB  Type:PROTEIN  Length:137
 aligned with LCN1_HUMAN | P31025 from UniProtKB/Swiss-Prot  Length:176

    Alignment length:143
                                    39        49        59        69        79        89        99       109       119       129       139       149       159       169   
           LCN1_HUMAN    30 DVSGTWYLKAMTVDREFPEMNLESVTPMTLTTLEGGNLEAKVTMLISGRCQEVKAVLEKTDEPGKYTADGGKHVAYIIRSHVKDHYIFYCEGELHGKPVRGVKLVGRDPKNNLEALEDFEKAAGARGLSTESILIPRQSETCS 172
               SCOP domains d3eycc_ C: Von E   bner's gland protein (VEGP, tear lipocalin)                                                                                  SCOP domains
               CATH domains 3eycC00 C:12-154     [code=2.40.128.20, no name defined]                                                                                        CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeeee....---..eeee..eeeee.....eeeeeeeee..eeeeeeeeeee.....eeee....eeeeeee.eeeeeeeeeeee.---..eeeeeeee.....hhhhhhhhhhhhhhh......ee..ee..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) 1Exon 1.2  PDB: C:13-56 (gaps) UniProt: 31-74-----------------------Exon 1.4  PDB: C:80-117 (gaps)        ---------------------------------1.6  Transcript 1 (1)
           Transcript 1 (2) --------------------------------------------Exon 1.3  PDB: C:56-80   ------------------------------------Exon 1.5  PDB: C:117-151           --- Transcript 1 (2)
                 3eyc C  12 DVSGTWYLKAMTVDRE---MNLESVTPMTLTTLEGGNLEAKVTMLISGRCQEVKAVLEKTDEPGKYTADGGKHVAYIIRSHVKDHYIFYSEGE---KPVRGVKLVGRDPKNNLEALEDFEKAAGARGLSTESILIPRQSETCS 154
                                    21     |  31        41        51        61        71        81        91       101  |   |111       121       131       141       151   
                                          27  31                                                                      104 108                                              

Chain D from PDB  Type:PROTEIN  Length:137
 aligned with LCN1_HUMAN | P31025 from UniProtKB/Swiss-Prot  Length:176

    Alignment length:142
                                    40        50        60        70        80        90       100       110       120       130       140       150       160       170  
           LCN1_HUMAN    31 VSGTWYLKAMTVDREFPEMNLESVTPMTLTTLEGGNLEAKVTMLISGRCQEVKAVLEKTDEPGKYTADGGKHVAYIIRSHVKDHYIFYCEGELHGKPVRGVKLVGRDPKNNLEALEDFEKAAGARGLSTESILIPRQSETCS 172
               SCOP domains d3eycd_ D: Von E   bner's gland protein (VEGP, tear lipocalin)                                                                                 SCOP domains
               CATH domains 3eycD00 D:13-154     [code=2.40.128.20, no name defined]                                                                                       CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeeeee....---.eeee..eeeee.....eeeeeeeee..eeeeeeeee.......eeee....eeeeeee.eeeeeeeeeeee..--..eeeeeeee.....hhhhhhhhhhhhhhh.....eee..ee..... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.2  PDB: D:13-56 (gaps) UniProt: 31-74-----------------------Exon 1.4  PDB: D:80-117 (gaps)        ---------------------------------1.6  Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------Exon 1.3  PDB: D:56-80   ------------------------------------Exon 1.5  PDB: D:117-151           --- Transcript 1 (2)
                 3eyc D  13 VSGTWYLKAMTVDREF---NLESVTPMTLTTLEGGNLEAKVTMLISGRCQEVKAVLEKTDEPGKYTADGGKHVAYIIRSHVKDHYIFYSEGEL--KPVRGVKLVGRDPKNNLEALEDFEKAAGARGLSTESILIPRQSETCS 154
                                    22     |  32        42        52        62        72        82        92       102  |  | 112       122       132       142       152  
                                          28  32                                                                      105  |                                              
                                                                                                                         108                                              

   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  (1, 4)

Asymmetric Unit

(-) CATH Domains  (1, 4)

Asymmetric Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3EYC)

(-) Gene Ontology  (11, 11)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C,D   (LCN1_HUMAN | P31025)
molecular function
    GO:0004869    cysteine-type endopeptidase inhibitor activity    Stops, prevents or reduces the activity of a cysteine-type endopeptidase, any enzyme that hydrolyzes peptide bonds in polypeptides by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
biological process
    GO:0015909    long-chain fatty acid transport    The directed movement of long-chain fatty acids into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. A long-chain fatty acid is a fatty acid with a chain length between C13 and C22.
    GO:0010951    negative regulation of endopeptidase activity    Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
    GO:0050896    response to stimulus    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus. The process begins with detection of the stimulus and ends with a change in state or activity or the cell or organism.
    GO:0001895    retina homeostasis    A tissue homeostatic process involved in the maintenance of an internal equilibrium within the retina of the eye, including control of cellular proliferation and death and control of metabolic function.
    GO:0050909    sensory perception of taste    The series of events required for an organism to receive a gustatory stimulus, convert it to a molecular signal, and recognize and characterize the signal. Gustation involves the direct detection of chemical composition, usually through contact with chemoreceptor cells. This is a neurological process.
    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:0070062    extracellular exosome    A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
    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.
    GO:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.

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 Related Entries

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

UniProtKB/Swiss-Prot
        LCN1_HUMAN | P310251xki 4qaf

(-) Related Entries Specified in the PDB File

1xki THE SAME PROTEIN CRYSTALLIZED IN SPACE GROUP C2