Page last updated: 2024-10-24

mitotic metaphase chromosome alignment

Definition

Target type: biologicalprocess

A chromosome localization process whereby chromosomes are positioned in a specific order and orientation at the metaphase plate (spindle equator), during mitotic chromosome segregation. This alignment ensures that each daughter cell will receive the correct number of chromosomes during cell division. [ISBN:0815316194]

Mitotic metaphase chromosome alignment is a critical stage in cell division where the duplicated chromosomes are precisely arranged along the metaphase plate, a central plane within the cell. This organized arrangement ensures that each daughter cell receives an identical set of chromosomes during cytokinesis. The process involves a complex interplay of microtubules, kinetochores, and motor proteins, leading to a highly regulated and dynamic assembly.

1. **Microtubule Attachment:** During prometaphase, spindle microtubules, emanating from opposite poles of the cell, attach to the kinetochore, a specialized protein complex on the centromere region of each chromosome. Kinetochores act as the interface between chromosomes and microtubules.

2. **Chromosome Movement and Tension:** Once attached, microtubules exert forces on chromosomes, causing them to move towards the spindle poles. This movement is regulated by motor proteins, such as dynein and kinesin, which walk along the microtubules.

3. **Congression:** As microtubules pull on chromosomes, they undergo a process called congression, moving towards the metaphase plate. This movement is driven by a balance of forces from microtubules attached to the kinetochores and the opposing forces from the spindle poles.

4. **Alignment at the Metaphase Plate:** The alignment of chromosomes at the metaphase plate is achieved when all chromosomes are properly bi-oriented, meaning that each sister chromatid is attached to microtubules emanating from opposite poles. This creates a tension across the chromosomes, ensuring equal distribution of genetic material to daughter cells.

5. **Metaphase Checkpoint:** The cell cycle includes a checkpoint at the metaphase stage, called the spindle assembly checkpoint. This checkpoint ensures that all chromosomes are properly aligned before the cell progresses to anaphase. If any chromosome is not correctly attached or aligned, the checkpoint will arrest the cell cycle until the error is corrected.

6. **Role of Motor Proteins:** Motor proteins play a crucial role in chromosome alignment. Kinetochore-associated motor proteins, like dynein, pull chromosomes towards the poles. Other motor proteins, like kinesin, can stabilize microtubule attachments or move chromosomes towards the equator.

7. **Dynamic Microtubule Dynamics:** Microtubules are constantly growing and shrinking, providing a dynamic framework for chromosome movement. The constant polymerization and depolymerization of microtubules contribute to the forces needed for chromosome alignment.

8. **Importance of Precise Alignment:** The accurate and precise alignment of chromosomes at the metaphase plate is critical for ensuring proper segregation of genetic material during cell division. Any errors in alignment can lead to aneuploidy, a condition where cells have an abnormal number of chromosomes, which can contribute to various developmental disorders and diseases.'
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Proteins (4)

ProteinDefinitionTaxonomy
Echinoderm microtubule-associated protein-like 4An echinoderm microtubule-associated protein-like 4 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9HC35]Homo sapiens (human)
Kinesin-like protein KIFC1A kinesin-like protein KIFC1 that is encoded in the genome of human. [PRO:DNx]Homo sapiens (human)
Centromere-associated protein EA centromere-associated protein E that is encoded in the genome of human. [PMID:12719470, PMID:15592459, PMID:17785528, PRO:KER]Homo sapiens (human)
G2/mitotic-specific cyclin-B1A G2/mitotic-specific cyclin-B1 that is encoded in the genome of human. [PRO:DAN]Homo sapiens (human)

Compounds (112)

CompoundDefinitionClassesRoles
bisindolylmaleimide ibisindolylmaleimide I: a bis(indolyl)maleimide
bisindolylmaleimide ivindoles;
maleimides
boheminebohemine : Purine substituted on C-2, C-6 and N-9 with (3-hydroxypropyl)amino, benzylamino and isopropyl groups respectively; a synthetic, cell-permeable, cyclin-dependent kinase (CDK) inhibitor that is structurally similar to olomoucine and roscovitine.purinesEC 2.7.11.22 (cyclin-dependent kinase) inhibitor
gw8510GW8510: 3' substituted indolone as a scaffold for the development of neuroprotective drug; structure in first source
indirubin-3'-monoximeindirubin-3'-monoxime : A member of the class of biindoles that is indirubin in which the keto group at position 3' has undergone condensation with hydroxylamine to form the corresponding oxime.

indirubin-3'-monoxime: has antiangiogenic activity
nsc 664704kenpaullone : An indolobenzazepine that is paullone in which the hydrogen at position 9 is replaced by a bromo substituent. It is an ATP-competitive inhibitor of cyclin-dependent kinases (CDKs) and glycogen synthase kinase 3beta (GSK3beta).

kenpaullone: inhibits CDK1/cyclin B; structure in first source
indolobenzazepine;
lactam;
organobromine compound
cardioprotective agent;
EC 2.7.11.22 (cyclin-dependent kinase) inhibitor;
EC 2.7.11.26 (tau-protein kinase) inhibitor;
geroprotector
nu2058NU2058: structure in first source
nu6102NU6102: structure in first source
o(6)-benzylguanineO(6)-benzylguanine: a suicide inhibitor of O(6)-methylguanine-DNA methyltransferase activity
olomoucineolomoucine : A 9H-purine that is substituted by a (2-hydroxyethyl)nitrilo, benzylnitrilo and a methyl group at positions 2,6 and 9, respectively. It is a cyclin-dependent kinase inhibitor.

olomoucine: inhibits protein P34CDC2
2,6-diaminopurines;
ethanolamines
EC 2.7.11.22 (cyclin-dependent kinase) inhibitor
pd 1530354-((3-bromophenyl)amino)-6,7-dimethoxyquinazoline: structure given in first source

PD-153035 : A member of the class of quinazolines carrying a 3-bromophenylamino substituent at position 4 and two methoxy substituents at positions 6 and 7.
aromatic amine;
aromatic ether;
bromobenzenes;
quinazolines;
secondary amino compound
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor;
epidermal growth factor receptor antagonist
imatinibaromatic amine;
benzamides;
N-methylpiperazine;
pyridines;
pyrimidines
antineoplastic agent;
apoptosis inducer;
tyrosine kinase inhibitor
indazolesIndazoles: A group of heterocyclic aromatic organic compounds consisting of the fusion of BENZENE and PYRAZOLES.indazole
indirubin
indigohydroxyindoles
2-phenylindolealpha-phenylindole: RN given refers to parent cpdphenylindole
staurosporineindolocarbazole alkaloid;
organic heterooctacyclic compound
apoptosis inducer;
bacterial metabolite;
EC 2.7.11.13 (protein kinase C) inhibitor;
geroprotector
baicalindihydroxyflavone;
glucosiduronic acid;
glycosyloxyflavone;
monosaccharide derivative
antiatherosclerotic agent;
antibacterial agent;
anticoronaviral agent;
antineoplastic agent;
antioxidant;
cardioprotective agent;
EC 2.7.7.48 (RNA-directed RNA polymerase) inhibitor;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
ferroptosis inhibitor;
neuroprotective agent;
non-steroidal anti-inflammatory drug;
plant metabolite;
prodrug
physodic acidphysodic acid: lichen constituentcarbonyl compound
fascaplysinefascaplysine: from tropic sea sponges
o(6)-n-butylguanine
birb 796aromatic ether;
morpholines;
naphthalenes;
pyrazoles;
ureas
EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor;
immunomodulator
cyc 202seliciclib : 2,6-Diaminopurine carrying benzylamino, (2R)-1-hydroxybutan-2-yl and isopropyl substituents at C-6, C-2-N and N-9 respectively. It is an experimental drug candidate in the family of pharmacological cyclin-dependent kinase (CDK) inhibitors.2,6-diaminopurinesantiviral drug;
EC 2.7.11.22 (cyclin-dependent kinase) inhibitor
sb 216763indoles;
maleimides
2,4-diamino-6-benzyloxy-5-nitrosopyrimidine2,4-diamino-6-benzyloxy-5-nitrosopyrimidine: inhibits O(6)-alkylguanine-DNA alkyltransferase; structure given in first source
paullonepaullone : An indolobenzazepine that is 5,6,7,12-tetrahydroindolo[3,2-d][1]benzazepine carrying an oxo substituent at position 6.

paullone: structure in first source
indolobenzazepine;
lactam
EC 2.7.11.22 (cyclin-dependent kinase) inhibitor;
EC 2.7.11.26 (tau-protein kinase) inhibitor
nu 6027
meridianin gmeridianin G: from the tunicate Aplidium meridianum; structure in first source
5-iodoindirubin-3'-monoxime5-iodoindirubin-3'-monoxime: inhibits GSK-3beta
2H-pyrazolo[4,3-b]quinoxalin-3-aminequinoxaline derivative
7-n-butyl-6-(4'-hydroxyphenyl)-5h-pyrrolo(2,3b)pyrazine
6-bromoindirubin-3'-oxime6-bromoindirubin-3'-oxime : A member of the class of biindoles that is indirubin substituted at position 6 by a bromo group and in which the keto group at position 3' has undergone condensation with hydroxylamine to form the corresponding oxime.

6-bromoindirubin-3'-oxime: structure in first source
purvalanol bpurvalanol B: protein kinase inhibitor; structure in first sourcepurvalanolprotein kinase inhibitor
purvalanol a6-((3-chloro)anilino)-2-(isopropyl-2-hydroxyethylamino)-9-isopropylpurine: purvalanol A is the (1R)-isomer;purvalanol
2-methyl-5-(4-methylanilino)-1,3-benzothiazole-4,7-dioneaminotoluene
cgp 60474substituted aniline
cgp 74514a
monastrol(S)-monastrol : An ethyl 4-(3-hydroxyphenyl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate that has S configuration.

ethyl 4-(3-hydroxyphenyl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate : A member of the class of thioureas that is 3,4-dihydropyrimidine-2(1)-thione substituted by a 3-hydroxyphenyl group at position 4, an ethoxycarbonyl group at position 5, and a methyl group at position 6.

monastrol : A racemate comprising equimolar amounts of R- and S-monastrol.

monastrol: stops mitosis by fostering formation of monopolar spindles; structure in first source
enoate ester;
ethyl ester;
phenols;
racemate;
thioureas
antileishmanial agent;
antimitotic;
antineoplastic agent;
EC 3.5.1.5 (urease) inhibitor
1,4-dimethoxy-10H-acridine-9-thioneacridines
bms 387032N-(5-(((5-(1,1-dimethylethyl)-2-oxazolyl)methyl)thio)-2-thiazolyl)-4-piperidinecarboxamide: a CDK2 inhibitor with antineoplastic activity; structure in first source

N-(5-{[(5-tert-butyl-1,3-oxazol-2-yl)methyl]sulfanyl}-1,3-thiazol-2-yl)piperidine-4-carboxamide : A secondary carboxamide resulting from the formal condensation of the carboxy group of piperidine-4-carboxylic acid with the amino group of 5-{[(5-tert-butyl-1,3-oxazol-2-yl)methyl]sulfanyl}-1,3-thiazol-2-amine. It is an ATP-competitive inhibitor of CDK2, CDK7 and CDK9 kinases and exhibits anti-cancer properties.
1,3-oxazoles;
1,3-thiazoles;
organic sulfide;
piperidinecarboxamide;
secondary carboxamide
angiogenesis inhibitor;
antineoplastic agent;
apoptosis inducer;
EC 2.7.11.22 (cyclin-dependent kinase) inhibitor
7-butyl-6-(4-methoxyphenyl)-5H-pyrrolo[2,3-b]pyrazinepyrroles
4-benzyl-2-methyl-1,2,4-thiadiazolidine-3,5-dione4-benzyl-2-methyl-1,2,4-thiadiazolidine-3,5-dione: a GSK3beta inhibitor

TDZD-8 : A member of the class of thiadiazolidines that is 1,2,4-thiadiazolidine-3,5-dione which is substituted by a methyl group at position 2 and by a benzyl group at position 4. It is a non-ATP competitive inhibitor of glycogen synthase kinase 3beta (GSK3beta). An experimental compound which was being developed for the potential treatment of Alzheimer's disease.
benzenes;
thiadiazolidine
anti-inflammatory agent;
antineoplastic agent;
apoptosis inducer;
EC 2.7.11.26 (tau-protein kinase) inhibitor;
neuroprotective agent
sb 4152863-(3-chloro-4-hydroxyphenylamino)-4-(4-nitrophenyl)-1H-pyrrole-2,5-dione: a glycogen synthase kinase-3 inhibitor; structure in first sourceC-nitro compound;
maleimides;
monochlorobenzenes;
phenols;
secondary amino compound;
substituted aniline
antioxidant;
apoptosis inducer;
EC 2.7.11.26 (tau-protein kinase) inhibitor;
neuroprotective agent
alsterpaullonealsterpaullone : An organic heterotetracyclic compound that is 1,3-dihydro-2H-1-benzazepin-2-one which shares its 4-5 bond with the 3-2 bond of 5-nitro-1H-indole.

alsterpaullone: structure in first source
C-nitro compound;
caprolactams;
organic heterotetracyclic compound
anti-HIV-1 agent;
antineoplastic agent;
apoptosis inducer;
EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor;
EC 2.7.11.22 (cyclin-dependent kinase) inhibitor;
EC 2.7.11.26 (tau-protein kinase) inhibitor
quercetin7-hydroxyflavonol;
pentahydroxyflavone
antibacterial agent;
antineoplastic agent;
antioxidant;
Aurora kinase inhibitor;
chelator;
EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor;
geroprotector;
phytoestrogen;
plant metabolite;
protein kinase inhibitor;
radical scavenger
apigeninChamomile: Common name for several daisy-like plants (MATRICARIA; TRIPLEUROSPERMUM; ANTHEMIS; CHAMAEMELUM) native to Europe and Western Asia, now naturalized in the United States and Australia.trihydroxyflavoneantineoplastic agent;
metabolite
luteolin3'-hydroxyflavonoid;
tetrahydroxyflavone
angiogenesis inhibitor;
anti-inflammatory agent;
antineoplastic agent;
apoptosis inducer;
c-Jun N-terminal kinase inhibitor;
EC 2.3.1.85 (fatty acid synthase) inhibitor;
immunomodulator;
nephroprotective agent;
plant metabolite;
radical scavenger;
vascular endothelial growth factor receptor antagonist
kaempferol7-hydroxyflavonol;
flavonols;
tetrahydroxyflavone
antibacterial agent;
geroprotector;
human blood serum metabolite;
human urinary metabolite;
human xenobiotic metabolite;
plant metabolite
harmineharmine : A harmala alkaloid in which the harman skeleton is methoxy-substituted at C-7.

Harmine: Alkaloid isolated from seeds of PEGANUM HARMALA; ZYGOPHYLLACEAE. It is identical to banisterine, or telepathine, from Banisteria caapi and is one of the active ingredients of hallucinogenic drinks made in the western Amazon region from related plants. It has no therapeutic use, but (as banisterine) was hailed as a cure for postencephalitic PARKINSON DISEASE in the 1920's.
harmala alkaloidanti-HIV agent;
EC 1.4.3.4 (monoamine oxidase) inhibitor;
metabolite
genistein7-hydroxyisoflavonesantineoplastic agent;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
geroprotector;
human urinary metabolite;
phytoestrogen;
plant metabolite;
tyrosine kinase inhibitor
baicaleintrihydroxyflavoneangiogenesis inhibitor;
anti-inflammatory agent;
antibacterial agent;
anticoronaviral agent;
antifungal agent;
antineoplastic agent;
antioxidant;
apoptosis inducer;
EC 1.13.11.31 (arachidonate 12-lipoxygenase) inhibitor;
EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor;
EC 4.1.1.17 (ornithine decarboxylase) inhibitor;
ferroptosis inhibitor;
geroprotector;
hormone antagonist;
plant metabolite;
prostaglandin antagonist;
radical scavenger
chrysinchrysin : A dihydroxyflavone in which the two hydroxy groups are located at positions 5 and 7.7-hydroxyflavonol;
dihydroxyflavone
anti-inflammatory agent;
antineoplastic agent;
antioxidant;
EC 2.7.11.18 (myosin-light-chain kinase) inhibitor;
hepatoprotective agent;
plant metabolite
fisetin3'-hydroxyflavonoid;
7-hydroxyflavonol;
tetrahydroxyflavone
anti-inflammatory agent;
antioxidant;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
geroprotector;
metabolite;
plant metabolite
alvocidibalvocidib : A synthetic dihydroxyflavone that is 5,7-dihydroxyflavone which is substituted by a 3-hydroxy-1-methylpiperidin-4-yl group at position 8 and by a chlorine at the 2' position (the (-)-3S,4R stereoisomer). A cyclin-dependent kinase 9 (CDK9) inhibitor, it has been studied for the treatment of acute myeloid leukaemia, arthritis and atherosclerotic plaque formation.

alvocidib: structure given in first source
dihydroxyflavone;
hydroxypiperidine;
monochlorobenzenes;
tertiary amino compound
antineoplastic agent;
antirheumatic drug;
apoptosis inducer;
EC 2.7.11.22 (cyclin-dependent kinase) inhibitor
su 9516
(E)-3-(2-Hydroxyphenyl)-2-propenalcinnamaldehydes
arcyriaflavin aarcyriaflavin A: from marine ascidian, Eudistoma sp.; structure given in first sourceindolocarbazole
pd 0183812PD 0183812: inhibits CDK4 and CDK6; structure in first source
palbociclibaminopyridine;
aromatic ketone;
cyclopentanes;
piperidines;
pyridopyrimidine;
secondary amino compound;
tertiary amino compound
antineoplastic agent;
EC 2.7.11.22 (cyclin-dependent kinase) inhibitor
jnj-7706621sulfonamide
olomoucine iiolomoucine II: structure in first source
vx680N-arylpiperazine
cyc 1164-methyl-5-(2-(4-morpholinophenylamino)pyrimidin-4-yl)thiazol-2-amine: an aurora kinase inhibitor; structure in first source
1-azakenpaullone1-azakenpaullone : An organic heterotetracyclic compound that is 7,12-dihydropyrido[3',2':2,3]azepino[4,5-b]indole substituted at positions 6 and 9 by oxo and bromo groups respectively.lactam;
organic heterotetracyclic compound;
organobromine compound;
organonitrogen heterocyclic compound
EC 2.7.11.26 (tau-protein kinase) inhibitor;
Wnt signalling activator
2-[(3-iodophenyl)methylthio]-5-pyridin-4-yl-1,3,4-oxadiazolearyl sulfide
b 43RK-24466 : A member of the class of pyrrolopyrimidines that is 7H-pyrrolo[2,3-d]pyrimidine substituted by amino, 4-phenoxyphenyl, and cyclopentyl groups at positions 4, 5 and 7, respectively. It is a potent inhibitor of Lck that inhibits Lck (64-509) and LckCD isoforms (IC50 of less than 1 and 2 nM, respectively).aromatic amine;
aromatic ether;
cyclopentanes;
primary amino compound;
pyrrolopyrimidine
EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor;
geroprotector
aminopurvalanol aaminopurvalanol A: casein kinase I alpha inhibitor; structure in first sourcemonochlorobenzenes;
purvalanol
protein kinase inhibitor
ispinesibbenzamides
cvt 313CVT 313: a potent inhibitor of CDK2 that prevents neointimal proliferation; structure given in first source
npi 2358NPI 2358: antineoplastic; structure in first source

plinabulin : A member of the class of 2,5-diketopiperazines that is piperazine-2,5-dione substituted by benzylidene and (5-tert-butyl-1H-imidazol-4-yl)methylidene groups at positions 3 and 6, respectively. It is a vascular disrupting agent and a microtubule destabalising agent which was in clinical trials (now discontinued) for the treatment of non-small cell lung cancer.
2,5-diketopiperazines;
benzenes;
imidazoles;
olefinic compound
angiogenesis inhibitor;
antineoplastic agent;
apoptosis inducer;
microtubule-destabilising agent
chir 99021CHIR 99021 : A member of the class of aminopyrimidines that is 2-aminopyrimidine substituted at positions N2, 5 and 6 by (5-cyanopyridin-2-yl)ethyl, 4-methylimidazol-2-yl and 2,4-dichlorophenyl groups respectively.

Chir 99021: structure in first source
aminopyridine;
aminopyrimidine;
cyanopyridine;
diamine;
dichlorobenzene;
imidazoles;
secondary amino compound
EC 2.7.11.26 (tau-protein kinase) inhibitor
nu 61404-(6-cyclohexylmethoxy-9H-purin-2-ylamino)-N,N-diethylbenzamide: a cyclin-dependent kinase inhibitor; structure in first source
meridianin ameridianin A: structure in first source
rgb 286638
at 75194-(2,6-dichlorobenzamido)-N-(piperidin-4-yl)-pyrazole-3-carboxamide : A member of the class of pryrazoles that is 4-amino-1H-pyrazole-3-carboxylic acid in which the primary amino group has been acylated by a 2,6-dichlorobenzoyl group and in which the carboxylic acid has been converted into a carboxamide by formal condensation with the primary amino group of 4-aminopiperidine.dichlorobenzene;
piperidines;
pyrazoles;
secondary carboxamide
antineoplastic agent;
EC 2.7.11.22 (cyclin-dependent kinase) inhibitor
pf 5732286-(4-(3-(methylsulfonyl)benzylamino)-5-(trifluoromethyl)pyrimidin-2-ylamino)-3,4-dihydroquinolin-2(1H)-one: structure in first sourcequinolines
crizotinibcrizotinib : A 3-[1-(2,6-dichloro-3-fluorophenyl)ethoxy]-5-[1-(piperidin-4-yl)pyrazol-4-yl]pyridin-2-amine that has R configuration at the chiral centre. The active enantiomer, it acts as a kinase inhibitor and is used for the treatment of patients with locally advanced or metastatic non-small cell lung cancer (NSCLC)

Crizotinib: A piperidine and aminopyridine derivative that acts as an inhibitor of RECEPTOR PROTEIN-TYROSINE KINASES, including ANAPLASTIC LYMPHOMA KINASE (ALK) and HEPATOCYTE GROWTH FACTOR RECEPTOR (HGFR; c-Met). It is used in the treatment of NON-SMALL CELL LUNG CANCER.
3-[1-(2,6-dichloro-3-fluorophenyl)ethoxy]-5-[1-(piperidin-4-yl)pyrazol-4-yl]pyridin-2-amineantineoplastic agent;
biomarker;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor
nvp-tae684piperidines
pha 848125N,1,4,4-tetramethyl-8-((4-(4-methylpiperazin-1-yl)phenyl)amino)-4,5-dihydro-1H-pyrazolo(4,3-h)quinazoline-3-carboxamide: a cyclin dependent kinase inhibitor
14-methyl-20-oxa-5,7,14,26-tetraazatetracyclo(19.3.1.1(2,6).1(8,12))heptacosa-1(25),2(26),3,5,8(27),9,11,16,21,23-decaene14-methyl-20-oxa-5,7,14,26-tetraazatetracyclo(19.3.1.1(2,6).1(8,12))heptacosa-1(25),2(26),3,5,8(27),9,11,16,21,23-decaene: has antineoplastic activity; also inhibits Fms-like tyrosine kinase-3; structure in first source
azd5438sulfonamide
p276-00P276-00: antineoplastic, cyclin-dependent kinase inhibitor; structure in first source
cx 4945
cink4CINK4: cyclin-dependent kinase 4 inhibitor; may have tumor suppression activity; structure in first sourceindoles
ldc067
bs 194
entrectinibentrectinib : A member of the class of indazoles that is 1H-indazole substituted by [4-(4-methylpiperazin-1-yl)-2-(tetrahydro-2H-pyran-4-ylamino)benzoyl]amino and 3,5-difluorobenzyl groups at positions 3 and 5, respectively. It is a potent inhibitor of TRKA, TRKB, TRKC, ROS1, and ALK (IC50 values of 0.1 to 1.7 nM), and used for the treatment of NTRK, ROS1 and ALK gene fusion-positive solid tumours.

entrectinib: inhibits TRK, ROS1, and ALK receptor tyrosine kinases; structure in first source
benzamides;
difluorobenzene;
indazoles;
N-methylpiperazine;
oxanes;
secondary amino compound;
secondary carboxamide
antibacterial agent;
antineoplastic agent;
apoptosis inducer;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor
(R)-DRF053(R)-DRF053 : A member of the class of 2,6-diaminopurines that is 2,6-diamiopurine which is substituted by an isopropyl group at position 9 and in which the amino groups at positions 2 and 6 are substituted by a 1-hydroxybutan-2-yl and 3-(pyridin-2-yl)phenyl groups, respectively (the R enantiomer). A cyclin dependent kinase inhibitor, widely used as its hydrochloride hydrate.2,6-diaminopurines;
phenylpyridine;
primary alcohol;
secondary amino compound
EC 2.7.11.22 (cyclin-dependent kinase) inhibitor
4-[6-[4-(methoxycarbonylamino)phenyl]-4-(4-morpholinyl)-1-pyrazolo[3,4-d]pyrimidinyl]-1-piperidinecarboxylic acid methyl esterWYE-354: an mTOR inhibitor; structure in first sourcecarbamate ester
thiopental sodiumorganochlorine compound;
piperazines;
pyrimidines
antineoplastic agent;
tyrosine kinase inhibitor
ribociclibribociclib: inhibits both CDK4 and CDK6
bay 1000394roniciclib: an antineoplastic agent that inhibits cyclin-dependent kinases; structure in first source
pha 793887piperidinecarboxamide
tak-632TAK-632 : A member of the class of benzothiazoles that is 1,3-benzothiazole substituted by (cyclopropanecarbonyl)amino, 4-fluoro-3-{2-[3-(trifluoromethyl)phenyl]acetamido}phenoxy, and cyano groups at positions 2, 6 and 7, respectively. It is a potent pan-RAF inhibitor with IC50 of 1.4, 2.4 and 8.3 nM for CRAF, BRAF(V600E), BRAF(WT), respectively.(trifluoromethyl)benzenes;
aromatic ether;
benzothiazoles;
cyclopropylcarboxamide;
monofluorobenzenes;
nitrile;
secondary carboxamide
antineoplastic agent;
apoptosis inducer;
B-Raf inhibitor;
EC 2.7.11.26 (tau-protein kinase) inhibitor;
necroptosis inhibitor
abemaciclib
dinaciclibpyrazolopyrimidine
nms p937NMS P937: a polo-like kinase 1 inhibitor; structure in first source
gilteritinibgilteritinib : A member of the class of pyrazines that is pyrazine-2-carboxamide which is substituted by {3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}nitrilo, (oxan-4-yl)nitrilo and ethyl groups at positions 3,5 and 6, respectively. It is a potent inhibitor of FLT3 and AXL tyrosine kinase receptors (IC50 = 0.29 nM and 0.73 nM, respectively). Approved by the FDA for the treatment of acute myeloid leukemia in patients who have a FLT3 gene mutation.

gilteritinib: an FLT3/AXL protein tyrosine kinase inhibitor
aromatic amine;
monomethoxybenzene;
N-methylpiperazine;
oxanes;
piperidines;
primary carboxamide;
pyrazines;
secondary amino compound
antineoplastic agent;
apoptosis inducer;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor
alectinibaromatic ketone;
morpholines;
nitrile;
organic heterotetracyclic compound;
piperidines
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor
bs-181BS-181: a CDK7 inhibitor with antineoplastic activitypyrazolopyrimidine
butyrolactone ibutyrolactone I: selective inhibitor of cdk2 & cdc2 kinase; structure given in first sourcebutenolide
on123300ON123300: a protein kinase inhibitor; structure in first source
ceritinibceritinib : A member of the class of aminopyrimidines that is 2,6-diamino-5-chloropyrimidine in which the amino groups at positions 2 and 6 are respectively carrying 2-methoxy-4-(piperidin-4-yl)-5-methylphenyl and 2-(isopropylsulfonyl)phenyl substituents. Used for the treatment of ALK-positive metastatic non-small cell lung cancer.

ceritinib: an anaplastic lymphoma kinase inhibitor
aminopyrimidine;
aromatic ether;
organochlorine compound;
piperidines;
secondary amino compound;
sulfone
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor
ap26113
amg 925AMG-925 : An organic heterotricyclic compound that is 9H-pyrido[4',3':4,5]pyrrolo[2,3-d]pyrimidine which is substituted by a [6-(hydroxyacetyl)-5,6,7,8-tetrahydro-1,6-naphthyridin-2-yl]nitrilo group at position 2 and by a trans-4-methylcyclohexyl group at position 9. It is a FLT3 and CDK4 dual kinase inhibitor that has antineoplastic activity. Currently under clinical investigation in patients with relapsed or refractory acute myeloid leukemia (AML).
osimertinibosimertinib : A member of the class of aminopyrimidines that is 4-(1-methylindol-3-yl)pyrimidin-2-amine in which one of the amino hydrogens is replaced by a 2-methoxy-4-[2-(dimethylamino)ethyl](methyl)amino-5-acrylamidophenyl group. Used (as the mesylate salt) for treatment of EGFR T790M mutation positive non-small cell lung cancer.

osimertinib: an EGFR tyrosine kinase inhibitor
acrylamides;
aminopyrimidine;
biaryl;
indoles;
monomethoxybenzene;
secondary amino compound;
secondary carboxamide;
substituted aniline;
tertiary amino compound
antineoplastic agent;
epidermal growth factor receptor antagonist
pf-06463922lorlatinib : A cyclic ether that is 16,17-dihydro-2H-8,4-(metheno)pyrazolo[4,3-h][2,5,11]benzoxadiazacyclotetradecin-15(10H)-one substituted by methyl groups at positions 2 and 10R, and by cyano, amino and fluoro groups at positions 3, 7 and 12 respectively. It is a small molecule inhibitor of ALK and ROS1 kinase developed by Pfizer for the treatment of ALK-positive non-small cell lung cancer.

lorlatinib: inhibits both anaplastic lymphoma kinase and c-ros oncogene 1 (ROS1) protein
aminopyridine;
aromatic ether;
azamacrocycle;
benzamides;
cyclic ether;
monofluorobenzenes;
nitrile;
organic heterotetracyclic compound;
pyrazoles
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor
at 9283
can 508CAN 508: has antiangiogenic activity; structure in first source

CAN-508 : A member of the class of pyrazoles that is 1H-pyrazole substituted by amino, (4-hydroxyphenyl)diazenyl, and amino groups at positions 3, 4 and 5, respectively. It is a CDK9 inhibitor (IC50 = 0.35 muM) with 38-fold selectivity for CDK9/cyclin T over other CDK/cyclin complexes.
aromatic amine;
monoazo compound;
phenols;
pyrazoles
angiogenesis inhibitor;
antineoplastic agent;
apoptosis inducer;
EC 2.7.11.22 (cyclin-dependent kinase) inhibitor
ro 3306RO 3306: structure in first source
hymenialdisine
debromohymenialdisine