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(-) Description

Title :  DISCOVERY OF NOVEL CYANAMIDE-BASED INHIBITORS OF CATHEPSIN C
 
Authors :  B. Zhao, D. Laine
Date :  22 Oct 10  (Deposition) - 26 Oct 11  (Release) - 26 Oct 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.85
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (4x)
Keywords :  Two Domains, Cystein Protease, Hydrolase-Hydrolase Inhibitor Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  D. Laine, M. Palovich, P. Mccleland, E. Petitjean, I. Delhom, H. Xie, J. Deng, G. Lin, R. Davis, A. Jolit, N. Nevins, J. Villa, J. Schneck
Discovery Of Novel Cyanamide-Based Inhibitors Of Cathepsin
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - DIPEPTIDYL PEPTIDASE 1
    ChainsA
    EC Number3.4.14.1
    EngineeredYES
    Expression SystemCRICETULUS GRISEUS
    Expression System CellCHO-LEC CELL
    Expression System Taxid10029
    GeneCTSC, CPPI
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymCATHEPSIN C

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit A
Biological Unit 1 (4x)A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 6)

Asymmetric Unit (3, 6)
No.NameCountTypeFull Name
1CL1Ligand/IonCHLORIDE ION
2LXV1Ligand/Ion2,5-DIBROMO-N-{(3R,5S)-1-[(Z)-IMINOMETHYL]-5-METHYLPYRROLIDIN-3-YL}BENZENESULFONAMIDE
3NAG4Ligand/IonN-ACETYL-D-GLUCOSAMINE
Biological Unit 1 (2, 20)
No.NameCountTypeFull Name
1CL-1Ligand/IonCHLORIDE ION
2LXV4Ligand/Ion2,5-DIBROMO-N-{(3R,5S)-1-[(Z)-IMINOMETHYL]-5-METHYLPYRROLIDIN-3-YL}BENZENESULFONAMIDE
3NAG16Ligand/IonN-ACETYL-D-GLUCOSAMINE

(-) Sites  (6, 6)

Asymmetric Unit (6, 6)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:1 , TYR A:64 , GLN A:228 , GLY A:232 , CYS A:234 , GLY A:276 , GLY A:277 , PHE A:278 , PRO A:279 , THR A:379 , ASN A:380 , HOH A:716BINDING SITE FOR RESIDUE LXV A 442
2AC2SOFTWARELEU A:54 , PHE A:206 , LEU A:207 , THR A:209 , ILE A:219 , ASN A:252 , NAG A:602BINDING SITE FOR RESIDUE NAG A 601
3AC3SOFTWARENAG A:601BINDING SITE FOR RESIDUE NAG A 602
4AC4SOFTWAREASN A:95 , HOH A:683BINDING SITE FOR RESIDUE NAG A 603
5AC5SOFTWAREASN A:5 , ASN A:65 , LEU A:378 , HOH A:536BINDING SITE FOR RESIDUE NAG A 604
6AC6SOFTWAREPHE A:278 , PRO A:279 , TYR A:280 , TYR A:323 , VAL A:431BINDING SITE FOR RESIDUE CL A 443

(-) SS Bonds  (5, 5)

Asymmetric Unit
No.Residues
1A:6 -A:94
2A:30 -A:112
3A:231 -A:274
4A:267 -A:307
5A:297 -A:313

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Lys A:46 -Leu A:47
2Asp A:371 -Pro A:372

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (29, 29)

Asymmetric Unit (29, 29)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_016933W39SCATC_HUMANDisease (PLS)104894210AW15S
02UniProtVAR_016934H127PCATC_HUMANDisease (PLS)104894216AH103P
03UniProtVAR_019036V129ECATC_HUMANDisease (PLS)760130711AV105E
04UniProtVAR_019037G139RCATC_HUMANDisease (PLS)749103588AG115R
05UniProtVAR_019038D236YCATC_HUMANDisease (PLS)764724707AD212Y
06UniProtVAR_009541V249FCATC_HUMANDisease (PLS)  ---AV225F
07UniProtVAR_009542Q252LCATC_HUMANDisease (PLS)104894207AQ228L
08UniProtVAR_019039R272HCATC_HUMANDisease (PLS)587777534AR248H
09UniProtVAR_009543R272PCATC_HUMANDisease (PLS)587777534AR248P
10UniProtVAR_016935Q286RCATC_HUMANDisease (PLS)104894208AQ262R
11UniProtVAR_019040C291YCATC_HUMANDisease (PLS)748729285AC267Y
12UniProtVAR_039686Y294HCATC_HUMANDisease (PLS)  ---AY270H
13UniProtVAR_019041G300DCATC_HUMANDisease (PLS)  ---AG276D
14UniProtVAR_019042G300SCATC_HUMANDisease (PLS)  ---AG276S
15UniProtVAR_009544G301SCATC_HUMANDisease (PLS)104894214AG277S
16UniProtVAR_019043G301VCATC_HUMANDisease (PLS)  ---AG277V
17UniProtVAR_019044Y304NCATC_HUMANDisease (PLS)  ---AY280N
18UniProtVAR_019045Q312RCATC_HUMANDisease (PLS)  ---AQ288R
19UniProtVAR_019046E319GCATC_HUMANDisease (PLS)  ---AE295G
20UniProtVAR_009545R339CCATC_HUMANDisease (PLS)  ---AR315C
21UniProtVAR_016944Y340CCATC_HUMANDisease (PLS)  ---AY316C
22UniProtVAR_009546Y347CCATC_HUMANDisease (AP1)104894211AY323C
23UniProtVAR_016945E401KCATC_HUMANPolymorphism200627023AE377K
24UniProtVAR_027249H405NCATC_HUMANDisease (PLS)  ---AH381N
25UniProtVAR_027250H405RCATC_HUMANDisease (PLS)151269219AH381R
26UniProtVAR_019047Y412CCATC_HUMANDisease (AP1)28937571AY388C
27UniProtVAR_016936W429CCATC_HUMANDisease (PLS)104894215AW405C
28UniProtVAR_019048E447GCATC_HUMANDisease (PLS)  ---AE423G
29UniProtVAR_016946I453VCATC_HUMANPolymorphism3888798AI429V

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (29, 116)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_016933W39SCATC_HUMANDisease (PLS)104894210AW15S
02UniProtVAR_016934H127PCATC_HUMANDisease (PLS)104894216AH103P
03UniProtVAR_019036V129ECATC_HUMANDisease (PLS)760130711AV105E
04UniProtVAR_019037G139RCATC_HUMANDisease (PLS)749103588AG115R
05UniProtVAR_019038D236YCATC_HUMANDisease (PLS)764724707AD212Y
06UniProtVAR_009541V249FCATC_HUMANDisease (PLS)  ---AV225F
07UniProtVAR_009542Q252LCATC_HUMANDisease (PLS)104894207AQ228L
08UniProtVAR_019039R272HCATC_HUMANDisease (PLS)587777534AR248H
09UniProtVAR_009543R272PCATC_HUMANDisease (PLS)587777534AR248P
10UniProtVAR_016935Q286RCATC_HUMANDisease (PLS)104894208AQ262R
11UniProtVAR_019040C291YCATC_HUMANDisease (PLS)748729285AC267Y
12UniProtVAR_039686Y294HCATC_HUMANDisease (PLS)  ---AY270H
13UniProtVAR_019041G300DCATC_HUMANDisease (PLS)  ---AG276D
14UniProtVAR_019042G300SCATC_HUMANDisease (PLS)  ---AG276S
15UniProtVAR_009544G301SCATC_HUMANDisease (PLS)104894214AG277S
16UniProtVAR_019043G301VCATC_HUMANDisease (PLS)  ---AG277V
17UniProtVAR_019044Y304NCATC_HUMANDisease (PLS)  ---AY280N
18UniProtVAR_019045Q312RCATC_HUMANDisease (PLS)  ---AQ288R
19UniProtVAR_019046E319GCATC_HUMANDisease (PLS)  ---AE295G
20UniProtVAR_009545R339CCATC_HUMANDisease (PLS)  ---AR315C
21UniProtVAR_016944Y340CCATC_HUMANDisease (PLS)  ---AY316C
22UniProtVAR_009546Y347CCATC_HUMANDisease (AP1)104894211AY323C
23UniProtVAR_016945E401KCATC_HUMANPolymorphism200627023AE377K
24UniProtVAR_027249H405NCATC_HUMANDisease (PLS)  ---AH381N
25UniProtVAR_027250H405RCATC_HUMANDisease (PLS)151269219AH381R
26UniProtVAR_019047Y412CCATC_HUMANDisease (AP1)28937571AY388C
27UniProtVAR_016936W429CCATC_HUMANDisease (PLS)104894215AW405C
28UniProtVAR_019048E447GCATC_HUMANDisease (PLS)  ---AE423G
29UniProtVAR_016946I453VCATC_HUMANPolymorphism3888798AI429V

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (3, 3)

Asymmetric Unit (3, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1THIOL_PROTEASE_CYSPS00139 Eukaryotic thiol (cysteine) proteases cysteine active site.CATC_HUMAN252-263  1A:228-239
2THIOL_PROTEASE_HISPS00639 Eukaryotic thiol (cysteine) proteases histidine active site.CATC_HUMAN403-413  1A:379-389
3THIOL_PROTEASE_ASNPS00640 Eukaryotic thiol (cysteine) proteases asparagine active site.CATC_HUMAN422-441  1A:398-417
Biological Unit 1 (3, 12)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1THIOL_PROTEASE_CYSPS00139 Eukaryotic thiol (cysteine) proteases cysteine active site.CATC_HUMAN252-263  4A:228-239
2THIOL_PROTEASE_HISPS00639 Eukaryotic thiol (cysteine) proteases histidine active site.CATC_HUMAN403-413  4A:379-389
3THIOL_PROTEASE_ASNPS00640 Eukaryotic thiol (cysteine) proteases asparagine active site.CATC_HUMAN422-441  4A:398-417

(-) Exons   (6, 6)

Asymmetric Unit (6, 6)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1aENST000002272661aENSE00002140483chr11:88070955-88070669287CATC_HUMAN1-58581A:1-3434
1.2aENST000002272662aENSE00000743353chr11:88068250-88068105146CATC_HUMAN58-106491A:34-8249
1.6ENST000002272666ENSE00000743352chr11:88045722-88045556167CATC_HUMAN107-162561A:83-11836
1.7bENST000002272667bENSE00000743351chr11:88042486-88042331156CATC_HUMAN162-214530--
1.8ENST000002272668ENSE00000743350chr11:88033813-88033698116CATC_HUMAN214-253401A:206-22924
1.9cENST000002272669cENSE00000743349chr11:88029432-88029301132CATC_HUMAN253-297451A:229-27345
1.10bENST0000022726610bENSE00000842724chr11:88027676-88026778899CATC_HUMAN297-4631671A:273-439 (gaps)167

(-) 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:351
 aligned with CATC_HUMAN | P53634 from UniProtKB/Swiss-Prot  Length:463

    Alignment length:441
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                463  
                                    34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454        |- 
           CATC_HUMAN    25 DTPANCTYLDLLGTWVFQVGSSGSQRDVNCSVMGPQEKKVVVYLQKLDTAYDDLGNSGHFTIIYNQGFEIVLNDYKWFAFFKYKEEGSKVTTYCNETMTGWVHDVLGRNWACFTGKKVGTASENVYVNIAHLKNSQEKYSNRLYKYDHNFVKAINAIQKSWTATTYMEYETLTLGDMIRRSGGHSRKIPRPKPAPLTAEIQQKILHLPTSWDWRNVHGINFVSPVRNQASCGSCYSFASMGMLEARIRILTNNSQTPILSPQEVVSCSQYAQGCEGGFPYLIAGKYAQDFGLVEEACFPYTGTDSPCKMKEDCFRYYSSEYHYVGGFYGGCNEALMKLELVHHGPMAVAFEVYDDFLHYKKGIYHHTGLRDPFNPFELTNHAVLLVGYGTDSASGMDYWIVKNSWGTGWGENGYFRIRRGTDECAIESIAVAATPIPKL--   -
               SCOP domains d3pdfa1 A:1-118 automated matches                                                                                                                                                                            d3pdfa2 A:206-441 automated matches                                                                                                                                                                                                          SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......hhhhhheeeeeeeeeeee....hhhhh..eeeeeeeeee...eeee....eeeeeee...eeeeee..eeeeeeeeeeee..eeeeeeeee..eeeee.....eeeeeeee.---------------------------------------------------------------------------------------.....ee....................hhhhhhhhhhhhhhhhhhhh.......hhhhhhhhh...hhhhh.hhhhhhhhhhhhh...hhhhh...................eeeeee........hhhhhhhhhhhhh.eeeee..hhhhhhh...ee...---..........eeeeeeeeee......eeeeee...........eeeee...hhhhh....eeeee...... Sec.struct. author
             SAPs(SNPs) (1) --------------S---------------------------------------------------------------------------------------P-E---------R------------------------------------------------------------------------------------------------Y------------F--L-------------------H-------------R----Y--H-----DS--N-------R------G-------------------CC------C-----------------------------------------------------K---N------C----------------C-----------------G-----V------------ SAPs(SNPs) (1)
             SAPs(SNPs) (2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------P---------------------------SV-------------------------------------------------------------------------------------------------------R------------------------------------------------------------ SAPs(SNPs) (2)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------THIOL_PROTEA-------------------------------------------------------------------------------------------------------------------------------------------THIOL_PROTE--------THIOL_PROTEASE_ASN  ------------------------ PROSITE
           Transcript 1 (1) Exon 1.1a  PDB: A:1-34            ------------------------------------------------Exon 1.6  PDB: A:83-118 UniProt: 107-162 [INCOMPLETE]   ---------------------------------------------------Exon 1.8  PDB: A:206-229 [INCOMPLETE]   -------------------------------------------Exon 1.10b  PDB: A:273-439 (gaps) UniProt: 297-463                                                                                                                     -- Transcript 1 (1)
           Transcript 1 (2) ---------------------------------Exon 1.2a  PDB: A:34-82 UniProt: 58-106          -------------------------------------------------------Exon 1.7b  PDB: - UniProt: 162-214                   --------------------------------------Exon 1.9c  PDB: A:229-273 UniProt: 253-297   ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript 1 (2)
                 3pdf A   1 DTPANCTYLDLLGTWVFQVGSSGSQRDVNCSVMGPQEKKVVVYLQKLDTAYDDLGNSGHFTIIYNQGFEIVLNDYKWFAFFKYKEEGSKVTTYCNETMTGWVHDVLGRNWACFTGKKV---------------------------------------------------------------------------------------FLPTSWDWRNVHGINFVSPVRNQASCGSCYSFASMGMLEARIRILTNNSQTPILSPQEVVSCSQYAQGCEGGFPYLIAGKYAQDFGLVEEACFPYTGTDSPCKMKEDCFRYYSSEYHYVGGFYGGCNEALMKLELVHHGPMAVAFEVYDDFLHYKKGIYHHT---DPFNPFELTNHAVLLVGYGTDSASGMDYWIVKNSWGTGWGENGYFRIRRGTDECAIESIAVAATPIPKLEN 441
                                    10        20        30        40        50        60        70        80        90       100       110       | -         -         -         -         -         -         -         -         -     | 210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360      |  -|      380       390       400       410       420       430       440 
                                                                                                                                               118                                                                                     206                                                                                                                                                              367 371                                                                      

   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  (2, 2)

Asymmetric Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3PDF)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (33, 33)

Asymmetric Unit(hide GO term definitions)
Chain A   (CATC_HUMAN | P53634)
molecular function
    GO:0051087    chaperone binding    Interacting selectively and non-covalently with a chaperone protein, a class of proteins that bind to nascent or unfolded polypeptides and ensure correct folding or transport.
    GO:0031404    chloride ion binding    Interacting selectively and non-covalently with chloride ions (Cl-).
    GO:0004197    cysteine-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
    GO:0008234    cysteine-type peptidase activity    Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
    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:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    GO:0016505    peptidase activator activity involved in apoptotic process    Increases the activity of a peptidase that is involved in the apoptotic process.
    GO:0008233    peptidase activity    Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
    GO:0019902    phosphatase binding    Interacting selectively and non-covalently with any phosphatase.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0043621    protein self-association    Interacting selectively and non-covalently with a domain within the same polypeptide.
    GO:0004252    serine-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
biological process
    GO:0048208    COPII vesicle coating    The addition of COPII proteins and adaptor proteins to ER membranes during the formation of transport vesicles, forming a vesicle coat.
    GO:0006888    ER to Golgi vesicle-mediated transport    The directed movement of substances from the endoplasmic reticulum (ER) to the Golgi, mediated by COP II vesicles. Small COP II coated vesicles form from the ER and then fuse directly with the cis-Golgi. Larger structures are transported along microtubules to the cis-Golgi.
    GO:0001913    T cell mediated cytotoxicity    The directed killing of a target cell by a T cell through the release of granules containing cytotoxic mediators or through the engagement of death receptors.
    GO:0007568    aging    A developmental process that is a deterioration and loss of function over time. Aging includes loss of functions such as resistance to disease, homeostasis, and fertility, as well as wear and tear. Aging includes cellular senescence, but is more inclusive. May precede death and may succeed developmental maturation (GO:0021700).
    GO:0006915    apoptotic process    A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
    GO:0006955    immune response    Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat.
    GO:2001235    positive regulation of apoptotic signaling pathway    Any process that activates or increases the frequency, rate or extent of apoptotic signaling pathway.
    GO:1903052    positive regulation of proteolysis involved in cellular protein catabolic process    Any process that activates or increases the frequency, rate or extent of proteolysis involved in cellular protein catabolic process.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
    GO:0051603    proteolysis involved in cellular protein catabolic process    The hydrolysis of a peptide bond or bonds within a protein as part of the chemical reactions and pathways resulting in the breakdown of a protein by individual cells.
    GO:0010033    response to organic substance    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 an organic substance stimulus.
cellular component
    GO:0030134    COPII-coated ER to Golgi transport vesicle    A vesicle with a coat formed of the COPII coat complex proteins. The COPII coat complex is formed by the Sec23p/Sec24p and the Sec13p/Sec31p heterodimers. COPII-associated vesicles transport proteins from the rough endoplasmic reticulum to the Golgi apparatus (anterograde transport).
    GO:0005794    Golgi apparatus    A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
    GO:0000139    Golgi membrane    The lipid bilayer surrounding any of the compartments of the Golgi apparatus.
    GO:0005783    endoplasmic reticulum    The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
    GO:0005788    endoplasmic reticulum lumen    The volume enclosed by the membranes of the endoplasmic reticulum.
    GO:0033116    endoplasmic reticulum-Golgi intermediate compartment membrane    The lipid bilayer surrounding any of the compartments of the endoplasmic reticulum (ER)-Golgi intermediate compartment system.
    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: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.
    GO:0005764    lysosome    A small lytic vacuole that has cell cycle-independent morphology and is found in most animal cells and that contains a variety of hydrolases, most of which have their maximal activities in the pH range 5-6. The contained enzymes display latency if properly isolated. About 40 different lysosomal hydrolases are known and lysosomes have a great variety of morphologies and functions.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

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        CATC_HUMAN | P536341k3b 2djf 2djg 4cdc 4cdd 4cde 4cdf 4oel 4oem

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