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(-) Description

Authors :  R. A. Stavenger, B. Zhao, B. -B. S. Zhou, M. J. Brown, D. Lee, D. A. Holt
Date :  10 Jun 05  (Deposition) - 13 Jun 06  (Release) - 24 Feb 09  (Revision)
Resolution :  1.70
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Chk1; Crystal Structure, Signaling Protein, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  R. A. Stavenger, B. Zhao, B. -B. S. Zhou, M. J. Brown, D. Lee, D. A. Holt
Pyrrolo[2, 3-B]Pyridines Inhibit The Checkpoint Kinase Chk1
To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

    EC Number2.7.1.37
    Expression System Cell LineSF9
    Expression System CommonFALL ARMYWORM
    Expression System Taxid7108
    Expression System VectorPFASTBAC1
    Expression System Vector TypeBACULOVIRUS
    FragmentRESIDUE 1-273
    GeneCHEK1, CHK1
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606

 Structural Features

(-) Chains, Units

Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
2AC2SOFTWARELEU A:15 , TYR A:20 , VAL A:23 , ALA A:36 , LYS A:38 , LEU A:84 , GLU A:85 , TYR A:86 , CYS A:87 , GLY A:90 , ASP A:94 , LEU A:137 , ASP A:148 , HOH A:520 , HOH A:535BINDING SITE FOR RESIDUE 199 A 400

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
1Asn A:229 -Pro A:230

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (2, 2)

Asymmetric/Biological Unit (2, 2)
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant

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

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
1PROTEIN_KINASE_ATPPS00107 Protein kinases ATP-binding region signature.CHK1_HUMAN15-38  1A:15-38
2PROTEIN_KINASE_STPS00108 Serine/Threonine protein kinases active-site signature.CHK1_HUMAN126-138  1A:126-138

(-) Exons   (0, 0)

(no "Exon" information available for 1ZYS)

(-) 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:271
 aligned with CHK1_HUMAN | O14757 from UniProtKB/Swiss-Prot  Length:476

    Alignment length:271
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272 
               SCOP domains d1zysa_ A: Cell cycle checkpoint kinase chk1                                                                                                                                                                                                                                    SCOP domains
               CATH domains 1zysA01 A:3-97 Phosphorylase Kinase; domain 1                                                  1zysA02 A:98-273 Transferase(Phosphotransferase) domain 1                                                                                                                        CATH domains
               Pfam domains ------Pkinase-1zysA01 A:9-265                                                                                                                                                                                                                                          -------- Pfam domains
         Sec.struct. author Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------Q------------------------------------------------------------------V-------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------PROTEIN_KINASE_ATP      ---------------------------------------------------------------------------------------PROTEIN_KINAS--------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272 

Chain B from PDB  Type:PROTEIN  Length:5
               SCOP domains ----- SCOP domains
               CATH domains ----- CATH domains
               Pfam domains ----- Pfam domains
         Sec.struct. author .eee. Sec.struct. author
                 SAPs(SNPs) ----- SAPs(SNPs)
                    PROSITE ----- PROSITE
                 Transcript ----- Transcript
                 1zys B 301 ASVSA 305

   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, 1)

Asymmetric/Biological Unit

(-) CATH Domains  (2, 2)

Asymmetric/Biological Unit
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
Clan: PKinase (934)

(-) Gene Ontology  (44, 44)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CHK1_HUMAN | O14757)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0035402    histone kinase activity (H3-T11 specific)    Catalysis of the transfer of a phosphate group to the threonine-11 residue of the N-terminal tail of histone H3.
    GO:0016301    kinase activity    Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
    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:0004672    protein kinase activity    Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction: a protein + ATP = a phosphoprotein + ADP.
    GO:0004674    protein serine/threonine kinase activity    Catalysis of the reactions: ATP + protein serine = ADP + protein serine phosphate, and ATP + protein threonine = ADP + protein threonine phosphate.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
biological process
    GO:0000077    DNA damage checkpoint    A cell cycle checkpoint that regulates progression through the cell cycle in response to DNA damage. A DNA damage checkpoint may blocks cell cycle progression (in G1, G2 or metaphase) or slow the rate at which S phase proceeds.
    GO:0006975    DNA damage induced protein phosphorylation    The widespread phosphorylation of various molecules, triggering many downstream processes, that occurs in response to the detection of DNA damage.
    GO:0006281    DNA repair    The process of restoring DNA after damage. Genomes are subject to damage by chemical and physical agents in the environment (e.g. UV and ionizing radiations, chemical mutagens, fungal and bacterial toxins, etc.) and by free radicals or alkylating agents endogenously generated in metabolism. DNA is also damaged because of errors during its replication. A variety of different DNA repair pathways have been reported that include direct reversal, base excision repair, nucleotide excision repair, photoreactivation, bypass, double-strand break repair pathway, and mismatch repair pathway.
    GO:0006260    DNA replication    The cellular metabolic process in which a cell duplicates one or more molecules of DNA. DNA replication begins when specific sequences, known as origins of replication, are recognized and bound by initiation proteins, and ends when the original DNA molecule has been completely duplicated and the copies topologically separated. The unit of replication usually corresponds to the genome of the cell, an organelle, or a virus. The template for replication can either be an existing DNA molecule or RNA.
    GO:0031572    G2 DNA damage checkpoint    A cell cycle checkpoint that detects and negatively regulates progression from G2 to M phase in the cell cycle in response to DNA damage.
    GO:0000086    G2/M transition of mitotic cell cycle    The mitotic cell cycle transition by which a cell in G2 commits to M phase. The process begins when the kinase activity of M cyclin/CDK complex reaches a threshold high enough for the cell cycle to proceed. This is accomplished by activating a positive feedback loop that results in the accumulation of unphosphorylated and active M cyclin/CDK complex.
    GO:0007049    cell cycle    The progression of biochemical and morphological phases and events that occur in a cell during successive cell replication or nuclear replication events. Canonically, the cell cycle comprises the replication and segregation of genetic material followed by the division of the cell, but in endocycles or syncytial cells nuclear replication or nuclear division may not be followed by cell division.
    GO:0006974    cellular response to DNA damage 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 stimulus indicating damage to its DNA from environmental insults or errors during metabolism.
    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:0048096    chromatin-mediated maintenance of transcription    Maintenance of transcription by remodelling of chromatin into an 'open configuration'. Once established, this regulation is mitotically stable and is maintained over many cell divisions. It is also heritable.
    GO:0035407    histone H3-T11 phosphorylation    The modification of histone H3 by the addition of an phosphate group to a threonine residue at position 11 of the histone.
    GO:0045839    negative regulation of mitotic nuclear division    Any process that stops, prevents or reduces the rate or extent of mitosis. Mitosis is the division of the eukaryotic cell nucleus to produce two daughter nuclei that, usually, contain the identical chromosome complement to their mother.
    GO:0018107    peptidyl-threonine phosphorylation    The phosphorylation of peptidyl-threonine to form peptidyl-O-phospho-L-threonine.
    GO:0016310    phosphorylation    The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
    GO:0006468    protein phosphorylation    The process of introducing a phosphate group on to a protein.
    GO:0042127    regulation of cell proliferation    Any process that modulates the frequency, rate or extent of cell proliferation.
    GO:0010569    regulation of double-strand break repair via homologous recombination    Any process that modulates the frequency, rate or extent of the error-free repair of a double-strand break in DNA in which the broken DNA molecule is repaired using homologous sequences.
    GO:0010468    regulation of gene expression    Any process that modulates the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
    GO:2000615    regulation of histone H3-K9 acetylation    Any process that modulates the frequency, rate or extent of histone H3-K9 acetylation.
    GO:0046602    regulation of mitotic centrosome separation    Any process that modulates the frequency, rate or extent of the separation of duplicated centrosome components at the beginning of mitosis.
    GO:1901796    regulation of signal transduction by p53 class mediator    Any process that modulates the frequency, rate or extent of signal transduction by p53 class mediator.
    GO:0010767    regulation of transcription from RNA polymerase II promoter in response to UV-induced DNA damage    Any process that modulates the frequency, rate or extent of transcription from an RNA polymerase II promoter as a result of a UV damage stimulus.
    GO:0090399    replicative senescence    A cell aging process associated with the dismantling of a cell as a response to telomere shortening and/or cellular aging.
cellular component
    GO:0005813    centrosome    A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
    GO:0000785    chromatin    The ordered and organized complex of DNA, protein, and sometimes RNA, that forms the chromosome.
    GO:0000781    chromosome, telomeric region    The terminal region of a linear chromosome that includes the telomeric DNA repeats and associated proteins.
    GO:0000794    condensed nuclear chromosome    A highly compacted molecule of DNA and associated proteins resulting in a cytologically distinct nuclear chromosome.
    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: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:0043231    intracellular membrane-bounded organelle    Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.
    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:0005654    nucleoplasm    That part of the nuclear content other than the chromosomes or the nucleolus.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    GO:0005657    replication fork    The Y-shaped region of a replicating DNA molecule, resulting from the separation of the DNA strands and in which the synthesis of new strands takes place. Also includes associated protein complexes.


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 Related Entries

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

        CHK1_HUMAN | O147571ia8 1nvq 1nvr 1nvs 1zlt 2ayp 2br1 2brb 2brg 2brh 2brm 2brn 2bro 2c3j 2c3k 2c3l 2cgu 2cgv 2cgw 2cgx 2e9n 2e9o 2e9p 2e9u 2e9v 2gdo 2ghg 2hog 2hxl 2hxq 2hy0 2qhm 2qhn 2r0u 2wmq 2wmr 2wms 2wmt 2wmu 2wmv 2wmw 2wmx 2x8d 2x8e 2x8i 2xey 2xez 2xf0 2ydi 2ydj 2ydk 2yer 2yex 2ym3 2ym4 2ym5 2ym6 2ym7 2ym8 2ywp 3f9n 3jvr 3jvs 3nlb 3ot3 3ot8 3pa3 3pa4 3pa5 3tkh 3tki 3u9n 4fsm 4fsn 4fsq 4fsr 4fst 4fsu 4fsw 4fsy 4fsz 4ft0 4ft3 4ft5 4ft7 4ft9 4fta 4ftc 4fti 4ftj 4ftk 4ftl 4ftm 4ftn 4fto 4ftq 4ftr 4ftt 4ftu 4gh2 4hyh 4hyi 4jik 4qye 4qyf 4qyg 4qyh 4rvk 4rvl 4rvm 5dls 5f4n

(-) Related Entries Specified in the PDB File

1nvq 1nvr 1nvs