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(-) Description

Title :  CASPASE-8 IN COMPLEX WITH DARPIN-8.4
 
Authors :  J. Barandun, T. Schroeder, P. R. E. Mittl, M. G. Grutter
Date :  08 Dec 10  (Deposition) - 28 Dec 11  (Release) - 12 Mar 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.80
Chains :  Asym./Biol. Unit :  A,B,C,D,E,F,G,H
Keywords :  Hydrolase-Inhibitor Complex, Devd Darpin, Ankyrin Repeat Protein, Ribosome Display, Apoptosis (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  T. Schroeder, J. Barandun, M. G. Grutter
Caspase-8 In Complex With Darpin-8. 4
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - CASPASE-8
    ChainsA, C
    EC Number3.4.22.61
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System VectorPET11D
    Expression System Vector TypePLASMID
    FragmentP18 SUBUNIT, RESIDUES 218-374
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymCASP-8, APOPTOTIC CYSTEINE PROTEASE, APOPTOTIC PROTEASE MCH- CAP4, FADD-HOMOLOGOUS ICE/CED-3-LIKE PROTEASE, FADD-LIKE ICE, FLICE, ICE-LIKE APOPTOTIC PROTEASE 5, MORT1-ASSOCIATED CED-3 HOMOLOG, MACH
 
Molecule 2 - CASPASE-8
    ChainsB, D
    EC Number3.4.22.61
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System VectorPET11D
    Expression System Vector TypePLASMID
    FragmentP10 SUBUNIT, RESIDUES 376-479
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymCASP-8, APOPTOTIC CYSTEINE PROTEASE, APOPTOTIC PROTEASE MCH- CAP4, FADD-HOMOLOGOUS ICE/CED-3-LIKE PROTEASE, FADD-LIKE ICE, FLICE, ICE-LIKE APOPTOTIC PROTEASE 5, MORT1-ASSOCIATED CED-3 HOMOLOG, MACH
 
Molecule 3 - DARPIN-8.4
    ChainsE, F
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System StrainK-12
    Expression System Taxid83333
    Expression System VariantXL1BLUE
    Expression System VectorPQE30
    Expression System Vector TypePLASMID
    FragmentN3C, RESIDUES 1-169
    Organism ScientificSYNTHETIC CONSTRUCT
    Organism Taxid32630
    Other DetailsIN-VITRO EVOLVED SEQUENCE
 
Molecule 4 - AC-IETD-CHO
    ChainsG, H
    FragmentAC-IETD-CHO INHIBITOR, RESIDUES 1-4
    Organism ScientificSYNTHETIC CONSTRUCT
    Organism Taxid32630
    SyntheticYES

 Structural Features

(-) Chains, Units

  12345678
Asymmetric/Biological Unit ABCDEFGH

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 8)

Asymmetric/Biological Unit (2, 8)
No.NameCountTypeFull Name
1EDO5Ligand/Ion1,2-ETHANEDIOL
2SO43Ligand/IonSULFATE ION

(-) Sites  (8, 8)

Asymmetric Unit (8, 8)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:242 , ASN A:261 , GLY A:262 , THR A:263 , HIS A:264 , HOH A:2160 , HOH A:2161 , HOH A:2162BINDING SITE FOR RESIDUE SO4 A1372
2AC2SOFTWAREASN B:414 , GLU B:417 , TRP B:420 , LYS B:453 , HOH B:2061 , ILE H:1BINDING SITE FOR RESIDUE EDO B1479
3AC3SOFTWAREARG B:471 , LYS B:472 , TYR D:448 , LYS E:144BINDING SITE FOR RESIDUE SO4 B1480
4AC4SOFTWAREHIS C:242 , ASN C:261 , GLY C:262 , THR C:263 , HIS C:264 , HOH C:2129 , HOH C:2131BINDING SITE FOR RESIDUE SO4 C1371
5AC5SOFTWAREGLN B:465 , TYR C:334 , THR C:337 , SER C:338 , GLU D:396 , PHE D:399BINDING SITE FOR RESIDUE EDO D1480
6AC6SOFTWAREASP C:303 , ASN C:306 , HOH C:2069 , LEU E:19 , GLU E:20 , ARG E:23 , ASP E:44 , LEU E:53BINDING SITE FOR RESIDUE EDO E1169
7AC7SOFTWAREGLU A:275 , HOH A:2117 , ASN F:74 , ASP F:105 , ALA F:108 , HOH F:2086 , HOH F:2134BINDING SITE FOR RESIDUE EDO F1169
8AC8SOFTWAREGLY F:124 , HIS F:125 , LEU F:126 , GLU F:127 , HOH F:2135BINDING SITE FOR RESIDUE EDO F1170

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2Y1L)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Lys A:231 -Pro A:232
2Lys C:231 -Pro C:232

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (2, 4)

Asymmetric/Biological Unit (2, 4)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_014204R248WCASP8_HUMANDisease (CASP8D)17860424A/CR248W
2UniProtVAR_020127D285HCASP8_HUMANPolymorphism1045485A/CD285H

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

(-) PROSITE Motifs  (3, 6)

Asymmetric/Biological Unit (3, 6)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CASPASE_P20PS50208 Caspase family p20 domain profile.CASP8_HUMAN232-364
 
  2A:232-364
C:232-364
2CASPASE_HISPS01121 Caspase family histidine active site.CASP8_HUMAN304-318
 
  2A:304-318
C:304-318
3CASPASE_CYSPS01122 Caspase family cysteine active site.CASP8_HUMAN351-362
 
  2A:351-362
C:351-362

(-) Exons   (0, 0)

(no "Exon" information available for 2Y1L)

(-) 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:150
 aligned with CASP8_HUMAN | Q14790 from UniProtKB/Swiss-Prot  Length:479

    Alignment length:150
                                   231       241       251       261       271       281       291       301       311       321       331       341       351       361       371
          CASP8_HUMAN   222 LDKVYQMKSKPRGYCLIINNHNFAKAREKVPKLHSIRDRNGTHLDAGALTTTFEELHFEIKPHDDCTVEQIYEILKIYQLMDHSNMDCFICCILSHGDKGIIYGTDGQEAPIYELTSQFTGLKCPSLAGKPKVFFIQACQGDNYQKGIPV 371
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ............eeeeeee...hhhhhhhhhhhh......hhhhhhhhhhhhhhhh.eeeeeee..hhhhhhhhhhhhhhh......eeeeeee..ee..eee.....eeehhhhhhhhh...hhhhh...eeeeee.......eeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------W------------------------------------H-------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----------CASPASE_P20  PDB: A:232-364 UniProt: 232-364                                                                                         ------- PROSITE (1)
                PROSITE (2) ----------------------------------------------------------------------------------CASPASE_HIS    --------------------------------CASPASE_CYS --------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2y1l A 222 LDKVYQMKSKPRGYCLIINNHNFAKAREKVPKLHSIRDRNGTHLDAGALTTTFEELHFEIKPHDDCTVEQIYEILKIYQLMDHSNMDCFICCILSHGDKGIIYGTDGQEAPIYELTSQFTGLKCPSLAGKPKVFFIQACQGDNYQKGIPV 371
                                   231       241       251       261       271       281       291       301       311       321       331       341       351       361       371

Chain B from PDB  Type:PROTEIN  Length:87
 aligned with CASP8_HUMAN | Q14790 from UniProtKB/Swiss-Prot  Length:479

    Alignment length:87
                                   401       411       421       431       441       451       461       471       
          CASP8_HUMAN   392 YIPDEADFLLGMATVNNCVSYRNPAEGTWYIQSLCQSLRERCPRGDDILTILTEVNYEVSNKDDKKNMGKQMPQPTFTLRKKLVFPS 478
               SCOP domains --------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .ee....eeeee........eee...eehhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhh...hhh.ee...eeee.......... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) --------------------------------------------------------------------------------------- PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript --------------------------------------------------------------------------------------- Transcript
                 2y1l B 392 YIPDEADFLLGMATVNNCVSYRNPAEGTWYIQSLCQSLRERCPRGDDILTILTEVNYEVSNKDDKKNMGKQMPQPTFTLRKKLVFPS 478
                                   401       411       421       431       441       451       461       471       

Chain C from PDB  Type:PROTEIN  Length:148
 aligned with CASP8_HUMAN | Q14790 from UniProtKB/Swiss-Prot  Length:479

    Alignment length:148
                                   232       242       252       262       272       282       292       302       312       322       332       342       352       362        
          CASP8_HUMAN   223 DKVYQMKSKPRGYCLIINNHNFAKAREKVPKLHSIRDRNGTHLDAGALTTTFEELHFEIKPHDDCTVEQIYEILKIYQLMDHSNMDCFICCILSHGDKGIIYGTDGQEAPIYELTSQFTGLKCPSLAGKPKVFFIQACQGDNYQKGIP 370
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........eeeeeee...hhhhhhhhhhhh......hhhhhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhhhh......eeeeeee..ee..eee.....eeehhhhhhhhh...hhhhh...eeeeee.......eeee. Sec.struct. author
                 SAPs(SNPs) -------------------------W------------------------------------H------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ---------CASPASE_P20  PDB: C:232-364 UniProt: 232-364                                                                                         ------ PROSITE (1)
                PROSITE (2) ---------------------------------------------------------------------------------CASPASE_HIS    --------------------------------CASPASE_CYS -------- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2y1l C 223 DKVYQMKSKPRGYCLIINNHNFAKAREKVPKLHSIRDRNGTHLDAGALTTTFEELHFEIKPHDDCTVEQIYEILKIYQLMDHSNMDCFICCILSHGDKGIIYGTDGQEAPIYELTSQFTGLKCPSLAGKPKVFFIQACQGDNYQKGIP 370
                                   232       242       252       262       272       282       292       302       312       322       332       342       352       362        

Chain D from PDB  Type:PROTEIN  Length:90
 aligned with CASP8_HUMAN | Q14790 from UniProtKB/Swiss-Prot  Length:479

    Alignment length:90
                                   399       409       419       429       439       449       459       469       479
          CASP8_HUMAN   390 TRYIPDEADFLLGMATVNNCVSYRNPAEGTWYIQSLCQSLRERCPRGDDILTILTEVNYEVSNKDDKKNMGKQMPQPTFTLRKKLVFPSD 479
               SCOP domains ------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..eee....eeeee........eee...eehhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhh..hhh.ee...eeee........... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (1) ------------------------------------------------------------------------------------------ PROSITE (1)
                PROSITE (2) ------------------------------------------------------------------------------------------ PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------ Transcript
                 2y1l D 390 TRYIPDEADFLLGMATVNNCVSYRNPAEGTWYIQSLCQSLRERCPRGDDILTILTEVNYEVSNKDDKKNMGKQMPQPTFTLRKKLVFPSD 479
                                   399       409       419       429       439       449       459       469       479

Chain E from PDB  Type:PROTEIN  Length:156
                                                                                                                                                                                            
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhh............hhhhhhhhh.hhhhhhhhhhh............hhhhhhhhh.hhhhhhhhhhh............hhhhhhhhh.hhhhhhhhhhh............hhhhhhhhh.hhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2y1l E  13 DLGKKLLEAARAGRDDEVRILMANGADVNAEDASGWTPLHLAAFNGHLEIVEVLLKNGADVNAVDHAGMTPLRLAALFGHLEIVEVLLKNGADVNANDMEGHTPLHLAAMFGHLEIVEVLLKNGADVNAQDKFGKTAFDISIDNGNEDLAEILQKL 168
                                    22        32        42        52        62        72        82        92       102       112       122       132       142       152       162      

Chain F from PDB  Type:PROTEIN  Length:156
                                                                                                                                                                                            
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhh............hhhhhhhhhhhhhhhhhhhhh............hhhhhhhhh.hhhhhhhhhhh............hhhhhhhhh.hhhhhhhhhhh............hhhhhhhhh.hhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2y1l F  13 DLGKKLLEAARAGRDDEVRILMANGADVNAEDASGWTPLHLAAFNGHLEIVEVLLKNGADVNAVDHAGMTPLRLAALFGHLEIVEVLLKNGADVNANDMEGHTPLHLAAMFGHLEIVEVLLKNGADVNAQDKFGKTAFDISIDNGNEDLAEILQKL 168
                                    22        32        42        52        62        72        82        92       102       112       122       132       142       152       162      

Chain G from PDB  Type:PROTEIN  Length:4
                                    
               SCOP domains ---- SCOP domains
               CATH domains ---- CATH domains
               Pfam domains ---- Pfam domains
         Sec.struct. author .ee. Sec.struct. author
                 SAPs(SNPs) ---- SAPs(SNPs)
                    PROSITE ---- PROSITE
                 Transcript ---- Transcript
                 2y1l G   1 IETD   4

Chain H from PDB  Type:PROTEIN  Length:4
                                    
               SCOP domains ---- SCOP domains
               CATH domains ---- CATH domains
               Pfam domains ---- Pfam domains
         Sec.struct. author .ee. Sec.struct. author
                 SAPs(SNPs) ---- SAPs(SNPs)
                    PROSITE ---- PROSITE
                 Transcript ---- Transcript
                 2y1l H   1 IETD   4

   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 2Y1L)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2Y1L)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2Y1L)

(-) Gene Ontology  (70, 70)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B,C,D   (CASP8_HUMAN | Q14790)
molecular function
    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:0097153    cysteine-type endopeptidase activity involved in apoptotic process    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, and contributing to the apoptotic process.
    GO:0097199    cysteine-type endopeptidase activity involved in apoptotic signaling pathway    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, and contributing to the apoptotic signaling pathway.
    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:0035877    death effector domain binding    Interacting selectively and non-covalently with a DED domain (death effector domain) of a protein, a homotypic protein interaction module composed of a bundle of six alpha-helices that is related in structure to the death domain (DD).
    GO:0005123    death receptor binding    Interacting selectively and non-covalently with any member of the death receptor (DR) family. The DR family falls within the tumor necrosis factor receptor superfamily and is characterized by a cytoplasmic region of ~80 residues termed the death domain (DD).
    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: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: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:0032403    protein complex binding    Interacting selectively and non-covalently with any protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0097110    scaffold protein binding    Interacting selectively and non-covalently with a scaffold protein. Scaffold proteins are crucial regulators of many key signaling pathways. Although not strictly defined in function, they are known to interact and/or bind with multiple members of a signaling pathway, tethering them into complexes.
    GO:0005164    tumor necrosis factor receptor binding    Interacting selectively and non-covalently with the tumor necrosis factor receptor.
    GO:0031625    ubiquitin protein ligase binding    Interacting selectively and non-covalently with a ubiquitin protein ligase enzyme, any of the E3 proteins.
biological process
    GO:0042113    B cell activation    The change in morphology and behavior of a mature or immature B cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.
    GO:0042110    T cell activation    The change in morphology and behavior of a mature or immature T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.
    GO:0036462    TRAIL-activated apoptotic signaling pathway    An extrinsic apoptotic signaling pathway initiated by the binding of the ligand TRAIL (tumor necrosis factor-related apoptosis-inducing ligand) to a death receptor on the cell surface.
    GO:0035666    TRIF-dependent toll-like receptor signaling pathway    Any series of molecular signals generated as a consequence of binding to a toll-like receptor where the TRIF adaptor mediates transduction of the signal. Toll-like receptors directly bind pattern motifs from a variety of microbial sources to initiate innate immune response.
    GO:0097202    activation of cysteine-type endopeptidase activity    Any process that initiates the activity of the inactive enzyme cysteine-type endopeptidase.
    GO:0006919    activation of cysteine-type endopeptidase activity involved in apoptotic process    Any process that initiates the activity of the inactive enzyme cysteine-type endopeptidase in the context of an apoptotic process.
    GO:0097296    activation of cysteine-type endopeptidase activity involved in apoptotic signaling pathway    Any process that initiates the activity of an inactive cysteine-type endopeptidase involved in the apoptotic signaling pathway.
    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:0097190    apoptotic signaling pathway    A series of molecular signals which triggers the apoptotic death of a cell. The pathway starts with reception of a signal, and ends when the execution phase of apoptosis is triggered.
    GO:0007166    cell surface receptor signaling pathway    A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
    GO:0006921    cellular component disassembly involved in execution phase of apoptosis    The breakdown of structures such as organelles, proteins, or other macromolecular structures during apoptosis.
    GO:0071260    cellular response to mechanical stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a mechanical stimulus.
    GO:0071407    cellular response to organic cyclic compound    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an organic cyclic compound stimulus.
    GO:0071550    death-inducing signaling complex assembly    A process of protein complex assembly in which the arrangement and bonding together of the set of components that form the protein complex is mediated by a death domain (DD) interaction, as part of the extrinsic apoptotic signaling pathway.
    GO:0097194    execution phase of apoptosis    A stage of the apoptotic process that starts with the controlled breakdown of the cell through the action of effector caspases or other effector molecules (e.g. cathepsins, calpains etc.). Key steps of the execution phase are 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:0097191    extrinsic apoptotic signaling pathway    A series of molecular signals in which a signal is conveyed from the cell surface to trigger the apoptotic death of a cell. The pathway starts with either a ligand binding to a cell surface receptor, or a ligand being withdrawn from a cell surface receptor (e.g. in the case of signaling by dependence receptors), and ends when the execution phase of apoptosis is triggered.
    GO:0030225    macrophage differentiation    The process in which a relatively unspecialized monocyte acquires the specialized features of a macrophage.
    GO:0030101    natural killer cell activation    The change in morphology and behavior of a natural killer cell in response to a cytokine, chemokine, cellular ligand, or soluble factor.
    GO:0043124    negative regulation of I-kappaB kinase/NF-kappaB signaling    Any process that stops, prevents, or reduces the frequency, rate or extent of -kappaB kinase/NF-kappaB signaling.
    GO:1902042    negative regulation of extrinsic apoptotic signaling pathway via death domain receptors    Any process that stops, prevents or reduces the frequency, rate or extent of extrinsic apoptotic signaling pathway via death domain receptors.
    GO:0070423    nucleotide-binding oligomerization domain containing signaling pathway    Any series of molecular signals generated as a consequence of binding to a nucleotide-binding oligomerization domain containing (NOD) protein.
    GO:0043123    positive regulation of I-kappaB kinase/NF-kappaB signaling    Any process that activates or increases the frequency, rate or extent of I-kappaB kinase/NF-kappaB signaling.
    GO:0045651    positive regulation of macrophage differentiation    Any process that activates or increases the frequency, rate or extent of macrophage differentiation.
    GO:1900740    positive regulation of protein insertion into mitochondrial membrane involved in apoptotic signaling pathway    Any process that activates or increases the frequency, rate or extent of protein insertion into mitochondrial membrane involved in apoptotic signaling pathway.
    GO:0045862    positive regulation of proteolysis    Any process that activates or increases the frequency, rate or extent of the hydrolysis of a peptide bond or bonds within a protein.
    GO:0051291    protein heterooligomerization    The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of component monomers that are not all identical. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
    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:0042981    regulation of apoptotic process    Any process that modulates the occurrence or rate of cell death by apoptotic process.
    GO:1902041    regulation of extrinsic apoptotic signaling pathway via death domain receptors    Any process that modulates the frequency, rate or extent of extrinsic apoptotic signaling pathway via death domain receptors.
    GO:0010939    regulation of necrotic cell death    Any process that modulates the rate, frequency or extent of necrotic cell death. Necrotic cell death is a cell death process that is morphologically characterized by a gain in cell volume (oncosis), swelling of organelles, plasma membrane rupture and subsequent loss of intracellular contents.
    GO:0010803    regulation of tumor necrosis factor-mediated signaling pathway    Any process that modulates the rate or extent of the tumor necrosis factor-mediated signaling pathway. The tumor necrosis factor-mediated signaling pathway is the series of molecular signals generated as a consequence of tumor necrosis factor binding to a cell surface receptor.
    GO:0046677    response to antibiotic    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 antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.
    GO:0032025    response to cobalt ion    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 cobalt ion stimulus.
    GO:0009409    response to cold    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 cold stimulus, a temperature stimulus below the optimal temperature for that organism.
    GO:0032355    response to estradiol    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 stimulus by estradiol, a C18 steroid hormone hydroxylated at C3 and C17 that acts as a potent estrogen.
    GO:0045471    response to ethanol    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 ethanol stimulus.
    GO:0032496    response to lipopolysaccharide    Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria.
    GO:0034612    response to tumor necrosis factor    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 tumor necrosis factor stimulus.
    GO:0039650    suppression by virus of host cysteine-type endopeptidase activity involved in apoptotic process    Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host caspase activity. Caspases are cysteine-type endopeptidases which contribute to the apoptotic process.
    GO:0060715    syncytiotrophoblast cell differentiation involved in labyrinthine layer development    The process in which a chorionic trophoblast cell acquires specialized features of a syncytiotrophoblast of the labyrinthine layer of the placenta.
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
cellular component
    GO:0031265    CD95 death-inducing signaling complex    A protein complex formed upon binding of Fas/CD95/APO-1 to its ligand. The complex includes FADD/Mort1, procaspase-8/10 and c-FLIP in addition to the ligand-bound receptor.
    GO:0044297    cell body    The portion of a cell bearing surface projections such as axons, dendrites, cilia, or flagella that includes the nucleus, but excludes all cell projections.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005856    cytoskeleton    Any of the various filamentous elements that form the internal framework of cells, and typically remain after treatment of the cells with mild detergent to remove membrane constituents and soluble components of the cytoplasm. The term embraces intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0031264    death-inducing signaling complex    A protein complex formed by the association of signaling proteins with a death receptor upon ligand binding. The complex includes procaspases and death domain-containing proteins in addition to the ligand-bound receptor, and may control the activation of caspases 8 and 10.
    GO:0045121    membrane raft    Any of the small (10-200 nm), heterogeneous, highly dynamic, sterol- and sphingolipid-enriched membrane domains that compartmentalize cellular processes. Small rafts can sometimes be stabilized to form larger platforms through protein-protein and protein-lipid interactions.
    GO:0005815    microtubule organizing center    An intracellular structure that can catalyze gamma-tubulin-dependent microtubule nucleation and that can anchor microtubules by interacting with their minus ends, plus ends or sides.
    GO:0005741    mitochondrial outer membrane    The outer, i.e. cytoplasm-facing, lipid bilayer of the mitochondrial envelope.
    GO:0005739    mitochondrion    A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
    GO:0043005    neuron projection    A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
    GO:0005654    nucleoplasm    That part of the nuclear content other than the chromosomes or the nucleolus.
    GO:0043234    protein complex    A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical.
    GO:0097342    ripoptosome    A protein complex whose core components are the receptor-interacting serine/threonine-protein kinases RIPK1 and RIPK3 (also called RIP1 and RIP3). Formation of the ripoptosome can induce an extrinsic apoptotic signaling pathway or a necroptotic signaling pathway. The composition of this protein complex may depend on several factors including nature of the signal, cell type and more.

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 Related Entries

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

UniProtKB/Swiss-Prot
        CASP8_HUMAN | Q147901f9e 1i4e 1qdu 1qtn 2c2z 2fun 2k7z 3h11 3kjn 3kjq 4jj7 4prz 4ps1 4zbw 5jqe 5l08

(-) Related Entries Specified in the PDB File

1f9e CASPASE-8 SPECIFICITY PROBED AT SUBSITE S4 : CRYSTALSTRUCTURE OF THE CASPASE-8-Z-DEVD -CHO
1i4e CRYSTAL STRUCTURE OF THE CASPASE-8/P35 COMPLEX
1qdu CRYSTAL STRUCTURE OF THE COMPLEX OF CASPASE -8 WITH THE TRIPEPTIDE KETONE INHIBITOR ZEVD-DCBMK
1qtn CRYSTAL STRUCTURE OF THE COMPLEX OF CASPASE -8 WITH THE TETRAPEPTIDE INHIBITOR ACE-IETD -ALDEHYDE
2c2z CRYSTAL STRUCTURE OF CASPASE-8 IN COMPLEX WITH AZA-PEPTIDE MICHAEL ACCEPTOR INHIBITOR
2fun ALTERNATIVE P35-CASPASE-8 COMPLEX