LLPS-Hos-2316
CHEK1

▼ OVERVIEW


Status: Reviewed
Protein Name: Serine/threonine-protein kinase Chk1; CHK1 checkpoint homolog; Cell cycle checkpoint kinase; Checkpoint kinase-1
Gene Name: CHEK1, CHK1
Ensembl Gene: ENSG00000149554.12
Ensembl Protein: ENSP00000435371.1
Organism: Homo sapiens
Taxa ID: 9606
LLPS Type: Others
PDB: 1NVS (A, B) More


▼ PROPERTY



——— Disorder propensity (calculated by IUPred2A)

▼ Classification


Condensates:
CondensateDescriptionTissue/CellPMIDs
Centrosome/Spindle pole body
"...MiCroKiTS 4.0: a database of midbody, centrosome, kinetochore, telomere and spindle."
N/A15311285, 15483402
ChromatinPredicted from orthologsN/A(View)

▼ FUNCTION


Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest and activation of DNA repair in response to the presence of DNA damage or unreplicated DNA. May also negatively regulate cell cycle progression during unperturbed cell cycles. This regulation is achieved by a number of mechanisms that together help to preserve the integrity of the genome. Recognizes the substrate consensus sequence [R-X-X-S/T]. Binds to and phosphorylates CDC25A, CDC25B and CDC25C. Phosphorylation of CDC25A at 'Ser-178' and 'Thr-507' and phosphorylation of CDC25C at 'Ser-216' creates binding sites for 14-3-3 proteins which inhibit CDC25A and CDC25C. Phosphorylation of CDC25A at 'Ser-76', 'Ser-124', 'Ser-178', 'Ser-279' and 'Ser-293' promotes proteolysis of CDC25A. Phosphorylation of CDC25A at 'Ser-76' primes the protein for subsequent phosphorylation at 'Ser-79', 'Ser-82' and 'Ser-88' by NEK11, which is required for polyubiquitination and degradation of CDCD25A. Inhibition of CDC25 leads to increased inhibitory tyrosine phosphorylation of CDK-cyclin complexes and blocks cell cycle progression. Also phosphorylates NEK6. Binds to and phosphorylates RAD51 at 'Thr-309', which promotes the release of RAD51 from BRCA2 and enhances the association of RAD51 with chromatin, thereby promoting DNA repair by homologous recombination. Phosphorylates multiple sites within the C-terminus of TP53, which promotes activation of TP53 by acetylation and promotes cell cycle arrest and suppression of cellular proliferation. Also promotes repair of DNA cross-links through phosphorylation of FANCE. Binds to and phosphorylates TLK1 at 'Ser-743', which prevents the TLK1-dependent phosphorylation of the chromatin assembly factor ASF1A. This may enhance chromatin assembly both in the presence or absence of DNA damage. May also play a role in replication fork maintenance through regulation of PCNA. May regulate the transcription of genes that regulate cell-cycle progression through the phosphorylation of histones. Phosphorylates histone H3.1 (to form H3T11ph), which leads to epigenetic inhibition of a subset of genes. May also phosphorylate RB1 to promote its interaction with the E2F family of transcription factors and subsequent cell cycle arrest.

▼ SEQUENCE


Protein Sequence (FASTA)
1     MRSAVLKSLQ  PGSLPDCKAA  LGGSGNISTS  PFWSRRHSEG  QDTGTRAVLL  YGAGARVCGS  60
61    VTPSSFGGKS  AAFGFLQWWA  KDSPPRCSVE  SWQCPLWKTG  TWCKPWEKVP  MEKPDIGMPE  120
121   PDAQRFFHQL  MAGVVYLHGI  GITHRDIKPE  NLLLDERDNL  KISDFGLATV  FRYNNRERLL  180
181   NKMCGTLPYV  APELLKRREF  HAEPVDVWSC  GIVLTAMLAG  ELPWDQPSDS  CQEYSDWKEK  240
241   KTYLNPWKKI  DSAPLALLHK  ILVENPSARI  TIPDIKKDRW  YNKPLKKGAK  RPRVTSGGVS  300
301   ESPSGFSKHI  QSNLDFSPVN  SASSEENVKY  SSSQPEPRTG  LSLWDTSPSY  IDKLVQGISF  360
361   SQPTCPDHML  LNSQLLGTPG  SSQNPWQRLV  KRMTRFFTKL  DADKSYQCLK  ETCEKLGYQW  420
421   KKSCMNQVTI  STTDRRNNKL  IFKVNLLEMD  DKILVDFRLS  KGDGLEFKRH  FLKIKGKLID  480
481   IVSSQKIWLP  AT  492
Nucleotide CDS Sequence (FASTA)
1     ATGGCAGTGC  CCTTTGTGGA  AGACTGGGAC  TTGGTGCAAA  CCCTGGGAGA  AGGTGCCTAT  60
61    GGAGAAGTTC  AACTTGCTGT  GAATAGAGTA  ACTGAAGAAG  CAGTCGCAGT  GAAGATTGTA  120
121   GATATGAAGC  GTGCCGTAGA  CTGTCCAGAA  AATATTAAGA  AAGAGATCTG  TATCAATAAA  180
181   ATGCTAAATC  ATGAAAATGT  AGTAAAATTC  TATGGTCACA  GGAGAGAAGG  CAATATCCAA  240
241   TATTTATTTC  TGGAGTACTG  TAGTGGAGGA  GAGCTTTTTG  ACAGAATAGA  GCCAGACATA  300
301   GGCATGCCTG  AACCAGATGC  TCAGAGATTC  TTCCATCAAC  TCATGGCAGG  GGTGGTTTAT  360
361   CTGCATGGTA  TTGGAATAAC  TCACAGGGAT  ATTAAACCAG  AAAATCTTCT  GTTGGATGAA  420
421   AGGGATAACC  TCAAAATCTC  AGACTTTGGC  TTGGCAACAG  TATTTCGGTA  TAATAATCGT  480
481   GAGCGTTTGT  TGAACAAGAT  GTGTGGTACT  TTACCATATG  TTGCTCCAGA  ACTTCTGAAG  540
541   AGAAGAGAAT  TTCATGCAGA  ACCAGTTGAT  GTTTGGTCCT  GTGGAATAGT  ACTTACTGCA  600
601   ATGCTCGCTG  GAGAATTGCC  ATGGGACCAA  CCCAGTGACA  GCTGTCAGGA  GTATTCTGAC  660
661   TGGAAAGAAA  AAAAAACATA  CCTCAACCCT  TGGAAAAAAA  TCGATTCTGC  TCCTCTAGCT  720
721   CTGCTGCATA  AAATCTTAGT  TGAGAATCCA  TCAGCAAGAA  TTACCATTCC  AGACATCAAA  780
781   AAAGATAGAT  GGTACAACAA  ACCCCTCAAG  AAAGGGGCAA  AAAGGCCCCG  AGTCACTTCA  840
841   GGTGGTGTGT  CAGAGTCTCC  CAGTGGATTT  TCTAAGCACA  TTCAATCCAA  TTTGGACTTC  900
901   TCTCCAGTAA  ACAGTGCTTC  TAGTGAAGAA  AATGTGAAGT  ACTCCAGTTC  TCAGCCAGAA  960
961   CCCCGCACAG  GTCTTTCCTT  ATGGGATACC  AGCCCCTCAT  ACATTGATAA  ATTGGTACAA  1020
1021  GGGATCAGCT  TTTCCCAGCC  CACATGTCCT  GATCATATGC  TTTTGAATAG  TCAGTTACTT  1080
1081  GGCACCCCAG  GATCCTCACA  GGTTACTATA  TCAACAACTG  ATAGGAGAAA  CAATAAACTC  1140
1141  ATTTTCAAAG  TGAATTTGTT  AGAAATGGAT  GATAAAATAT  TGGTTGACTT  CCGGCTTTCT  1200
1201  AAGGGTGATG  GATTGGAGTT  CAAGAGACAC  TTCCTGAAGA  TTAAAGGGAA  GCTGATTGAT  1260
1261  ATTGTGAGCA  GCCAGAAGAT  TTGGCTTCCT  GCCACATGA  1299

▼ KEYWORD


ID
Family
3D-structure
Alternative splicing
ATP-binding
Cell cycle
Complete proteome
Cytoplasm
Cytoskeleton
DNA damage
DNA repair
Isopeptide bond
Kinase
Nucleotide-binding
Nucleus
Phosphoprotein
Polymorphism
Reference proteome
Serine/threonine-protein kinase
Transferase
Ubl conjugation

▼ GENE ONTOLOGY


ID
Classification
Description
Cellular Component
Centrosome
Cellular Component
Chromatin
Cellular Component
Condensed nuclear chromosome
Cellular Component
Cytoplasm
Cellular Component
Cytosol
Cellular Component
Extracellular space
Cellular Component
Intracellular membrane-bounded organelle
Cellular Component
Nucleoplasm
Cellular Component
Nucleus
Cellular Component
Protein-containing complex
Molecular Function
ATP binding
Molecular Function
Histone kinase activity (H3-T11 specific)
Molecular Function
Kinase activity
Molecular Function
Protein domain specific binding
Molecular Function
Protein kinase activity
Molecular Function
Protein serine/threonine kinase activity
Biological Process
Apoptotic process
Biological Process
Cell cycle
Biological Process
Cellular response to DNA damage stimulus
Biological Process
Cellular response to mechanical stimulus
Biological Process
Chromatin-mediated maintenance of transcription
Biological Process
DNA damage checkpoint
Biological Process
DNA damage induced protein phosphorylation
Biological Process
DNA repair
Biological Process
DNA replication
Biological Process
Intracellular signal transduction
Biological Process
Negative regulation of G0 to G1 transition
Biological Process
Negative regulation of mitotic nuclear division
Biological Process
Peptidyl-threonine phosphorylation
Biological Process
Positive regulation of cell cycle
Biological Process
Protein phosphorylation
Biological Process
Regulation of double-strand break repair via homologous recombination
Biological Process
Regulation of histone H3-K9 acetylation
Biological Process
Regulation of mitotic centrosome separation
Biological Process
Regulation of signal transduction by p53 class mediator
Biological Process
Regulation of transcription from RNA polymerase II promoter in response to UV-induced DNA damage
Biological Process
Replicative senescence
Biological Process
Signal transduction involved in G2 DNA damage checkpoint

▼ KEGG



▼ ORTHOLOGY


DrLLPS IDOrganismIdentityE-valueScore
LLPS-Pat-4142Pan troglodytes99.180.0 997
LLPS-Nol-3860Nomascus leucogenys96.950.0 989
LLPS-Gog-1334Gorilla gorilla96.930.0 785
LLPS-Pap-0910Pan paniscus96.930.0 785
LLPS-Chs-1303Chlorocebus sabaeus96.420.0 776
LLPS-Maf-1618Macaca fascicularis96.420.0 781
LLPS-Man-0863Macaca nemestrina96.150.0 978
LLPS-Cea-0969Cercocebus atys95.940.0 972
LLPS-Aim-1370Ailuropoda melanoleuca95.440.0 869
LLPS-Urm-0927Ursus maritimus94.880.0 769
LLPS-Caj-2216Callithrix jacchus94.70.0 954
LLPS-Fec-1757Felis catus94.630.0 771
LLPS-Mup-0986Mustela putorius furo94.370.0 768
LLPS-Sus-0234Sus scrofa94.370.0 766
LLPS-Caf-0316Canis familiaris94.370.0 768
LLPS-Cas-0871Carlito syrichta94.120.0 765
LLPS-Eqc-0459Equus caballus93.610.0 763
LLPS-Orc-1101Oryctolagus cuniculus93.610.0 762
LLPS-Mal-4018Mandrillus leucophaeus93.10.0 935
LLPS-Paa-2825Papio anubis93.10.0 937
LLPS-Fud-3309Fukomys damarensis92.840.0 757
LLPS-Loa-1935Loxodonta africana92.580.0 753
LLPS-Otg-1817Otolemur garnettii92.430.0 837
LLPS-Myl-1940Myotis lucifugus92.370.0 749
LLPS-Bot-2858Bos taurus92.330.0 753
LLPS-Ova-0881Ovis aries92.330.0 754
LLPS-Dio-1015Dipodomys ordii91.560.0 750
LLPS-Mea-1876Mesocricetus auratus91.050.0 745
LLPS-Mod-0285Monodelphis domestica90.540.0 741
LLPS-Mum-1027Mus musculus90.030.0 715
LLPS-Sah-2443Sarcophilus harrisii89.770.0 738
LLPS-Poa-3527Pongo abelii87.980.0 696
LLPS-Ora-1316Ornithorhynchus anatinus85.930.0 705
LLPS-Cap-0190Cavia porcellus84.140.0 671
LLPS-Pes-2151Pelodiscus sinensis83.380.0 675
LLPS-Ict-0623Ictidomys tridecemlineatus82.10.0 628
LLPS-Meg-0506Meleagris gallopavo79.590.0 655
LLPS-Anp-1915Anas platyrhynchos79.280.0 660
LLPS-Fia-0313Ficedula albicollis78.770.0 651
LLPS-Anc-1483Anolis carolinensis77.490.0 644
LLPS-Tag-2869Taeniopygia guttata76.940.0 587
LLPS-Lac-0480Latimeria chalumnae72.630.0 599
LLPS-Xet-2092Xenopus tropicalis71.210.0 581
LLPS-Leo-1865Lepisosteus oculatus66.750.0 560
LLPS-Scf-0795Scleropages formosus62.692e-175 509
LLPS-Aon-1560Aotus nancymaae61.711e-138 413
LLPS-Asm-2354Astyanax mexicanus61.644e-173 503
LLPS-Icp-3002Ictalurus punctatus60.364e-168 490
LLPS-Scm-0616Scophthalmus maximus59.341e-155 458
LLPS-Gaa-1945Gasterosteus aculeatus58.789e-149 441
LLPS-Dar-1318Danio rerio58.384e-150 442
LLPS-Orn-2089Oreochromis niloticus58.382e-146 435
LLPS-Orl-0085Oryzias latipes58.311e-153 453
LLPS-Xim-3461Xiphophorus maculatus58.162e-155 457
LLPS-Ten-1608Tetraodon nigroviridis58.083e-156 460
LLPS-Pof-0292Poecilia formosa57.542e-148 439
LLPS-Tar-2156Takifugu rubripes56.523e-143 426
LLPS-Spr-0899Sporisorium reilianum48.543e-49 184
LLPS-Usm-1165Ustilago maydis47.955e-48 181
LLPS-Cis-1569Ciona savignyi47.487e-110 341
LLPS-Crn-1453Cryptococcus neoformans47.068e-45 169
LLPS-Cii-0910Ciona intestinalis47.011e-102 322
LLPS-Drm-0392Drosophila melanogaster44.428e-99 314
LLPS-Kop-0972Komagataella pastoris43.94e-30 127
LLPS-Sac-0027Saccharomyces cerevisiae42.63e-28 122
LLPS-Fus-1526Fusarium solani42.422e-29 125
LLPS-Chc-1066Chondrus crispus42.117e-30 125
LLPS-Cogr-0633Colletotrichum graminicola41.823e-30 129
LLPS-Beb-0941Beauveria bassiana41.821e-29 126
LLPS-Sot-0650Solanum tuberosum41.423e-32 131
LLPS-Trv-1287Trichoderma virens41.421e-29 127
LLPS-Trr-1185Trichoderma reesei41.421e-29 126
LLPS-Coo-1397Colletotrichum orbiculare41.219e-30 127
LLPS-Yal-0727Yarrowia lipolytica41.186e-29 124
LLPS-Blg-0735Blumeria graminis41.079e-29 124
LLPS-Mao-0805Magnaporthe oryzae40.836e-30 128
LLPS-Gag-1166Gaeumannomyces graminis40.612e-29 126
LLPS-Map-1369Magnaporthe poae40.611e-29 126
LLPS-Nec-0056Neurospora crassa40.241e-28 124
LLPS-Asg-1349Ashbya gossypii40.112e-33 136
LLPS-Mel-1245Melampsora laricipopulina40.116e-31 129
LLPS-Scs-0667Sclerotinia sclerotiorum39.885e-28 122
LLPS-Sei-0798Setaria italica39.765e-31 128
LLPS-Scc-0225Schizosaccharomyces cryophilus39.642e-28 122
LLPS-Lem-0657Leptosphaeria maculans39.433e-29 126
LLPS-Ere-0560Erinaceus europaeus39.391e-28 122
LLPS-Cae-0220Caenorhabditis elegans39.398e-29 125
LLPS-Mam-2599Macaca mulatta39.393e-28 122
LLPS-Rhb-3507Rhinopithecus bieti39.393e-28 122
LLPS-Cym-1130Cyanidioschyzon merolae39.361e-31 130
LLPS-Dos-1280Dothistroma septosporum39.114e-29 125
LLPS-Pug-1511Puccinia graminis39.084e-29 125
LLPS-Lep-2156Leersia perrieri38.863e-28 121
LLPS-Phn-1502Phaeosphaeria nodorum38.866e-29 122
LLPS-Arl-1065Arabidopsis lyrata38.822e-29 124
LLPS-Art-2601Arabidopsis thaliana38.821e-29 125
LLPS-Viv-1220Vitis vinifera38.823e-29 124
LLPS-Orbr-0158Oryza brachyantha38.642e-28 121
LLPS-Put-0490Puccinia triticina38.582e-40 157
LLPS-Orb-2279Oryza barthii38.553e-28 121
LLPS-Sob-1429Sorghum bicolor38.552e-30 127
LLPS-Orm-0713Oryza meridionalis38.171e-28 122
LLPS-Bro-1072Brassica oleracea38.151e-28 122
LLPS-Orgl-0300Oryza glumaepatula38.125e-28 121
LLPS-Orni-0188Oryza nivara38.125e-28 121
LLPS-Scp-1189Schizosaccharomyces pombe38.077e-29 123
LLPS-Pyt-1611Pyrenophora teres38.017e-29 124
LLPS-Pytr-1405Pyrenophora triticirepentis38.011e-28 124
LLPS-Ori-0641Oryza indica37.72e-28 121
LLPS-Orr-1376Oryza rufipogon37.633e-28 120
LLPS-Ors-2364Oryza sativa37.633e-28 120
LLPS-Aso-1468Aspergillus oryzae37.58e-28 121
LLPS-Asf-1515Aspergillus flavus37.58e-28 121
LLPS-Hov-1778Hordeum vulgare37.371e-29 125
LLPS-Sol-1999Solanum lycopersicum37.17e-29 122
LLPS-Coc-1456Corchorus capsularis36.993e-29 124
LLPS-Nia-2028Nicotiana attenuata36.932e-28 121
LLPS-Brd-0942Brachypodium distachyon36.574e-28 120
LLPS-Php-0103Physcomitrella patens36.576e-29 123
LLPS-Brr-2260Brassica rapa36.02e-28 121
LLPS-Dac-1428Daucus carota35.271e-28 122
LLPS-Miv-0937Microbotryum violaceum33.124e-42 162
LLPS-Asfu-1276Aspergillus fumigatus32.852e-46 174
LLPS-Phv-0901Phaseolus vulgaris31.528e-40 153
LLPS-Cus-1926Cucumis sativus31.152e-42 161
LLPS-Asni-0929Aspergillus niger31.014e-42 162
LLPS-Ast-0431Aspergillus terreus30.929e-42 161
LLPS-Pot-2144Populus trichocarpa30.892e-37 147
LLPS-Thc-2198Theobroma cacao30.833e-38 150
LLPS-Asc-1261Aspergillus clavatus30.791e-43 166
LLPS-Mae-1984Manihot esculenta30.792e-38 150
LLPS-Via-1019Vigna angularis30.623e-38 149
LLPS-Tum-1385Tuber melanosporum30.63e-43 166
LLPS-Nef-0099Neosartorya fischeri30.542e-43 166
LLPS-Met-1636Medicago truncatula30.528e-37 145
LLPS-Glm-2191Glycine max30.526e-39 152
LLPS-Mua-1730Musa acuminata30.297e-37 145
LLPS-Org-0879Oryza glaberrima30.295e-39 152
LLPS-Scj-0036Schizosaccharomyces japonicus30.262e-46 174
LLPS-Sem-1591Selaginella moellendorffii30.081e-39 154
LLPS-Brn-2176Brassica napus30.052e-37 147
LLPS-Gor-2757Gossypium raimondii29.951e-37 148
LLPS-Prp-0520Prunus persica29.787e-37 145
LLPS-Orp-0226Oryza punctata29.717e-36 143
LLPS-Hea-2139Helianthus annuus29.512e-34 139
LLPS-Asn-0668Aspergillus nidulans29.48e-38 149
LLPS-Tra-0901Triticum aestivum29.34e-36 144
LLPS-Tru-1075Triticum urartu29.31e-35 146
LLPS-Cog-0622Colletotrichum gloeosporioides29.011e-40 158
LLPS-Amt-0049Amborella trichopoda28.535e-33 134
LLPS-Ved-0338Verticillium dahliae28.516e-42 162
LLPS-Fuo-0065Fusarium oxysporum27.712e-39 154
LLPS-Fuv-0386Fusarium verticillioides27.471e-38 152