ONTOLOGY REPORT - ANNOTATIONS


Term:hydroxyurea
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Accession:CHEBI:44423 term browser browse the term
Definition:An urea that has formula CH4N2O2.
Synonyms:related_synonym: CH4N2O2;   Hydroxycarbamid;   Hydroxycarbamide;   Hydroxyharnstoff;   InChI=1S/CH4N2O2/c2-1(4)3-5/h5H,(H3,2,3,4);   InChIKey=VSNHCAURESNICA-UHFFFAOYSA-N;   N-HYDROXYUREA;   N-carbamoylhydroxylamine;   NC(=O)NO;   carbamohydroxamic acid;   carbamohydroximic acid;   carbamoyl oxime;   carbamyl hydroxamate;   hydrea;   oxyurea
 alt_id: CHEBI:44420;   CHEBI:5816
 xref_casrn: 127-07-1
 xref: ChEMBL:104730 "ChEMBL COMPOUND";   ChemIDplus:127-07-1 "CAS Registry Number";   ChemIDplus:1741548 "Beilstein Registry Number";   DrugBank:DB01005 "DrugBank";   Gmelin:130423 "Gmelin Registry Number";   KEGG COMPOUND:127-07-1 "CAS Registry Number";   KEGG COMPOUND:C07044 "KEGG COMPOUND"
 xref_mesh: MESH:D006918
 xref: PDBeChem:NHY "PDBeChem";   Wikipedia:Hydroxyurea "Wikipedia"


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hydroxyurea term browser
Symbol Object Name GBrowse Qualifiers Evidence Chr Start Stop Reference Source
G Aldoa aldolase A, fructose-bisphosphate GBrowse link multiple interactions ISO 1 185,970,658 185,974,615 RGD:6480464 CTD
G Alox5 arachidonate 5-lipoxygenase GBrowse link multiple interactions ISO 4 152,610,283 152,657,891 RGD:6480464 CTD
G Atp6v1f ATPase, H transporting, lysosomal V1 subunit F GBrowse link increases mutagenesis ISO 4 56,347,184 56,350,085 RGD:6480464 CTD
G Atr ataxia telangiectasia and Rad3 related GBrowse link multiple interactions ISO 8 100,936,342 101,014,881 RGD:6480464 CTD
G Atr ataxia telangiectasia and Rad3 related GBrowse link multiple interactions ISO 8 100,936,342 101,014,881 RGD:6480464 CTD
G Bax Bcl2-associated X protein GBrowse link increases expression ISO 1 95,933,023 95,938,176 RGD:6480464 CTD
G Bax Bcl2-associated X protein GBrowse link increases expression ISO 1 95,933,023 95,938,176 RGD:6480464 CTD
G Bcl2l1 Bcl2-like 1 GBrowse link decreases response to substance EXP 3 143,129,087 143,180,199 RGD:6480464 CTD
G Blm Bloom syndrome, RecQ helicase-like GBrowse link increases expression ISO 1 136,271,573 136,358,077 RGD:6480464 CTD
G Bmi1 Bmi1 polycomb ring finger oncogene GBrowse link decreases expression ISO 17 92,784,216 92,787,947 RGD:6480464 CTD
G Bora bora, aurora kinase A activator GBrowse link decreases expression ISO 15 82,829,209 82,852,061 RGD:6480464 CTD
G Bpnt1 3'(2'), 5'-bisphosphate nucleotidase 1 GBrowse link increases mutagenesis ISO 13 101,340,544 101,367,549 RGD:6480464 CTD
G Bscl2 Berardinelli-Seip congenital lipodystrophy 2 (seipin) GBrowse link increases expression ISO 1 211,509,675 211,518,963 RGD:6480464 CTD
G Casp3 caspase 3 GBrowse link multiple interactions ISO 16 48,944,226 48,962,420 RGD:6480464 CTD
G Casp3 caspase 3 GBrowse link multiple interactions ISO 16 48,944,226 48,962,420 RGD:6480464 CTD
G Casp3 caspase 3 GBrowse link increases activity ISO 16 48,944,226 48,962,420 RGD:6480464 CTD
G Casp3 caspase 3 GBrowse link increases cleavage ISO 16 48,944,226 48,962,420 RGD:6480464 CTD
G Ccna2 cyclin A2 GBrowse link increases expression ISO 2 123,062,752 123,069,085 RGD:6480464 CTD
G Ccnb1 cyclin B1 GBrowse link increases expression ISO 2 31,574,600 31,581,784 RGD:6480464 CTD
G Ccnb1 cyclin B1 GBrowse link decreases expression ISO 2 31,574,600 31,581,784 RGD:6480464 CTD
G Ccnd1 cyclin D1 GBrowse link increases expression ISO 1 205,357,235 205,366,757 RGD:6480464 CTD
G Ccnd1 cyclin D1 GBrowse link decreases expression ISO 1 205,357,235 205,366,757 RGD:6480464 CTD
G Ccnd2 cyclin D2 GBrowse link increases expression ISO 4 163,523,817 163,546,501 RGD:6480464 CTD
G Ccnd3 cyclin D3 increases expression ISO RGD:6480464 CTD
G Ccne1 cyclin E1 GBrowse link increases expression ISO 1 90,568,189 90,577,426 RGD:6480464 CTD
G Ccne2 cyclin E2 GBrowse link decreases expression ISO 5 25,032,748 25,044,509 RGD:6480464 CTD
G Ccng1 cyclin G1 GBrowse link increases expression ISO 10 25,776,380 25,782,754 RGD:6480464 CTD
G Ccng2 cyclin G2 GBrowse link increases expression ISO 14 16,338,132 16,346,628 RGD:6480464 CTD
G Cdc25a cell division cycle 25A GBrowse link increases expression ISO 8 114,237,704 114,255,971 RGD:6480464 CTD
G Cdca8 cell division cycle associated 8 GBrowse link decreases expression ISO 5 144,251,164 144,276,352 RGD:6480464 CTD
G Cdk4 cyclin-dependent kinase 4 decreases expression ISO RGD:6480464 CTD
G Cdk4 cyclin-dependent kinase 4 decreases expression ISO RGD:6480464 CTD
G Cdk5rap1 CDK5 regulatory subunit associated protein 1 GBrowse link increases mutagenesis ISO 3 144,803,213 144,840,056 RGD:6480464 CTD
G Cdkn1a cyclin-dependent kinase inhibitor 1A GBrowse link multiple interactions ISO 20 7,376,325 7,386,778 RGD:6480464 CTD
G Cdkn1a cyclin-dependent kinase inhibitor 1A GBrowse link increases expression ISO 20 7,376,325 7,386,778 RGD:6480464 CTD
G Cdkn1a cyclin-dependent kinase inhibitor 1A GBrowse link increases expression ISO 20 7,376,325 7,386,778 RGD:6480464 CTD
G Cdkn1a cyclin-dependent kinase inhibitor 1A GBrowse link increases expression EXP 20 7,376,325 7,386,778 RGD:6480464 CTD
G Cdkn1a cyclin-dependent kinase inhibitor 1A GBrowse link increases expression ISO 20 7,376,325 7,386,778 RGD:6480464 CTD
G Cdkn1a cyclin-dependent kinase inhibitor 1A GBrowse link increases expression ISO 20 7,376,325 7,386,778 RGD:6480464 CTD
G Cdkn1b cyclin-dependent kinase inhibitor 1B GBrowse link increases expression ISO 4 171,841,705 171,846,506 RGD:6480464 CTD
G Cdkn1b cyclin-dependent kinase inhibitor 1B GBrowse link multiple interactions ISO 4 171,841,705 171,846,506 RGD:6480464 CTD
G Cdkn1c cyclin-dependent kinase inhibitor 1C GBrowse link increases expression ISO 1 203,835,215 203,837,844 RGD:6480464 CTD
G Cdkn2a cyclin-dependent kinase inhibitor 2A GBrowse link multiple interactions ISO 5 108,908,749 108,916,380 RGD:6480464 CTD
G Cdkn2a cyclin-dependent kinase inhibitor 2A GBrowse link increases expression ISO 5 108,908,749 108,916,380 RGD:6480464 CTD
G Chchd3 coiled-coil-helix-coiled-coil-helix domain containing 3 GBrowse link decreases expression ISO 4 59,891,615 60,170,903 RGD:6480464 CTD
G Chek1 checkpoint kinase 1 GBrowse link multiple interactions ISO 8 37,954,322 37,974,748 RGD:6480464 CTD
G Chek1 checkpoint kinase 1 GBrowse link decreases expression ISO 8 37,954,322 37,974,748 RGD:6480464 CTD
G Cideb cell death-inducing DFFA-like effector b GBrowse link decreases expression ISO 15 33,916,472 33,920,872 RGD:6480464 CTD
G Cks2 CDC28 protein kinase regulatory subunit 2 GBrowse link decreases expression ISO 17 19,423,502 19,429,451 RGD:6480464 CTD
G Cpb2 carboxypeptidase B2 (plasma) GBrowse link decreases expression ISO 15 56,104,920 56,154,321 RGD:6480464 CTD
G Cradd CASP2 and RIPK1 domain containing adaptor with death domain GBrowse link increases mutagenesis ISO 7 32,504,279 32,517,581 RGD:6480464 CTD
G Cxcr1 chemokine (C-X-C motif) receptor 1 GBrowse link increases mutagenesis ISO 9 73,510,488 73,511,537 RGD:6480464 CTD
G Dclre1c DNA cross-link repair 1C GBrowse link increases response to substance ISO 17 85,896,581 85,928,644 RGD:6480464 CTD
G Ddb2 damage specific DNA binding protein 2 GBrowse link increases expression ISO 3 75,568,487 75,591,428 RGD:6480464 CTD
G Dlgap1 discs, large (Drosophila) homolog-associated protein 1 GBrowse link increases mutagenesis ISO 9 109,455,911 110,018,738 RGD:6480464 CTD
G Dnmt1 DNA (cytosine-5-)-methyltransferase 1 GBrowse link affects response to substance ISO 8 19,926,995 19,973,256 RGD:6480464 CTD
G Dym dymeclin GBrowse link increases mutagenesis ISO 18 71,889,053 72,188,251 RGD:6480464 CTD
G Ech1 enoyl CoA hydratase 1, peroxisomal GBrowse link increases mutagenesis ISO 1 83,932,720 83,938,918 RGD:6480464 CTD
G Edn3 endothelin 3 GBrowse link decreases expression ISO 3 166,491,368 166,514,051 RGD:6480464 CTD
G Epo erythropoietin GBrowse link increases expression ISO 12 19,551,768 19,555,208 RGD:6480464 CTD
G Ercc5 excision repair cross-complementing rodent repair deficiency, complementation group 5 GBrowse link increases expression ISO 9 43,248,023 43,293,196 RGD:6480464 CTD
G Fas Fas (TNF receptor superfamily, member 6) GBrowse link increases expression ISO 1 238,259,443 238,274,745 RGD:6480464 CTD
G Fas Fas (TNF receptor superfamily, member 6) GBrowse link increases expression ISO 1 238,259,443 238,274,745 RGD:6480464 CTD
G Faslg Fas ligand (TNF superfamily, member 6) GBrowse link increases expression ISO 13 77,472,950 77,480,210 RGD:6480464 CTD
G Fkbp3 FK506 binding protein 3 GBrowse link increases expression ISO 6 86,410,859 86,422,588 RGD:6480464 CTD
G Fos FBJ osteosarcoma oncogene GBrowse link multiple interactions ISO 6 109,559,135 109,562,001 RGD:6480464 CTD
G Gadd45a growth arrest and DNA-damage-inducible, alpha GBrowse link increases expression ISO 4 96,649,941 96,652,243 RGD:6480464 CTD
G Galnt16 UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase 16 GBrowse link increases mutagenesis ISO 6 104,285,081 104,366,257 RGD:6480464 CTD
G Gapdh glyceraldehyde-3-phosphate dehydrogenase GBrowse link multiple interactions ISO 4 161,282,215 161,286,090 RGD:6480464 CTD
G Gapdh glyceraldehyde-3-phosphate dehydrogenase GBrowse link affects localization ISO 4 161,282,215 161,286,090 RGD:6480464 CTD
G Gapdh glyceraldehyde-3-phosphate dehydrogenase GBrowse link decreases activity ISO 4 161,282,215 161,286,090 RGD:6480464 CTD
G Got2 glutamic-oxaloacetic transaminase 2, mitochondrial (aspartate aminotransferase 2) GBrowse link multiple interactions ISO 19 9,629,687 9,655,336 RGD:6480464 CTD
G Grb14 growth factor receptor bound protein 14 GBrowse link increases mutagenesis ISO 3 46,832,380 46,952,670 RGD:6480464 CTD
G Hdac2 histone deacetylase 2 GBrowse link multiple interactions ISO 20 41,162,093 41,186,492 RGD:6480464 CTD
G Hesx1 HESX homeobox 1 GBrowse link increases mutagenesis ISO 16 2,255,128 2,257,233 RGD:6480464 CTD
G Hspa8 heat shock 70kDa protein 8 GBrowse link increases expression ISO 8 43,784,035 43,787,760 RGD:6480464 CTD
G Ier3 immediate early response 3 GBrowse link increases expression ISO 20 3,076,568 3,077,772 RGD:6480464 CTD
G Il13 interleukin 13 GBrowse link affects expression ISO 10 39,093,512 39,096,069 RGD:6480464 CTD
G Kif3b kinesin family member 3B GBrowse link increases mutagenesis ISO 3 143,642,175 143,681,902 RGD:6480464 CTD
G Kpna2 karyopherin alpha 2 GBrowse link decreases expression ISO 10 96,342,214 96,352,613 RGD:6480464 CTD
G Kras v-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog GBrowse link decreases expression ISO 4 182,869,242 182,895,106 RGD:6480464 CTD
G LOC100359600 karyopherin alpha 2-like GBrowse link decreases expression ISO 6 10,523,393 10,524,982 RGD:6480464 CTD
G Mad2l1 MAD2 mitotic arrest deficient-like 1 (yeast) GBrowse link decreases expression ISO 4 96,380,039 96,386,042 RGD:6480464 CTD
G Mapk1 mitogen activated protein kinase 1 GBrowse link decreases phosphorylation EXP 11 85,968,732 86,030,387 RGD:6480464 CTD
G Mapk3 mitogen activated protein kinase 3 GBrowse link decreases phosphorylation EXP 1 185,935,044 185,941,245 RGD:6480464 CTD
G Mapk8 mitogen-activated protein kinase 8 GBrowse link decreases phosphorylation EXP 16 8,925,133 9,004,897 RGD:6480464 CTD
G Mdm2 p53 E3 ubiquitin protein ligase GBrowse link increases expression ISO 7 56,996,694 57,020,926 RGD:6480464 CTD
G Mdm2 p53 E3 ubiquitin protein ligase GBrowse link affects expression ISO 7 56,996,694 57,020,926 RGD:6480464 CTD
G Mdm2 p53 E3 ubiquitin protein ligase GBrowse link increases expression ISO 7 56,996,694 57,020,926 RGD:6480464 CTD
G Mecom MDS1 and EVI1 complex locus GBrowse link increases expression ISO 2 114,814,409 114,882,676 RGD:6480464 CTD
G Mgmt O-6-methylguanine-DNA methyltransferase GBrowse link increases expression ISO 1 196,629,366 196,866,937 RGD:6480464 CTD
G Mpg N-methylpurine-DNA glycosylase GBrowse link increases expression ISO 10 15,643,334 15,649,561 RGD:6480464 CTD
G Nampt nicotinamide phosphoribosyltransferase GBrowse link decreases expression ISO 6 51,129,160 51,166,514 RGD:6480464 CTD
G Nek3 NIMA-related kinase 3 GBrowse link decreases expression ISO 16 74,524,839 74,547,785 RGD:6480464 CTD
G Neurod4 neuronal differentiation 4 GBrowse link decreases expression ISO 7 8,534,957 8,547,130 RGD:6480464 CTD
G Nfkb1 nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 GBrowse link increases expression ISO 2 233,091,013 233,187,501 RGD:6480464 CTD
G Nfkbia nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha GBrowse link increases expression ISO 6 75,729,302 75,732,475 RGD:6480464 CTD
G Nudt12 nudix (nucleoside diphosphate linked moiety X)-type motif 12 GBrowse link increases expression ISO 9 97,551,943 97,565,919 RGD:6480464 CTD
G Nus1 nuclear undecaprenyl pyrophosphate synthase 1 homolog (S. cerevisiae) GBrowse link decreases expression ISO 20 31,143,886 31,170,668 RGD:6480464 CTD
G Pcna proliferating cell nuclear antigen GBrowse link increases expression ISO 3 120,008,715 120,012,589 RGD:6480464 CTD
G Pklr pyruvate kinase, liver and RBC GBrowse link decreases expression ISO 2 181,214,853 181,223,505 RGD:6480464 CTD
G Ppp1r12a protein phosphatase 1, regulatory subunit 12A GBrowse link decreases expression ISO 7 46,876,552 46,986,022 RGD:6480464 CTD
G Prc1 protein regulator of cytokinesis 1 GBrowse link decreases expression ISO 1 136,112,674 136,133,720 RGD:6480464 CTD
G Prl2b1 Prolactin family 2, subfamily b, member 1 GBrowse link increases expression ISO 17 44,180,979 44,188,002 RGD:6480464 CTD
G Prune prune exopolyphosphatase GBrowse link increases mutagenesis ISO 2 190,165,356 190,192,807 RGD:6480464 CTD
G Psip1 PC4 and SFRS1 interacting protein 1 GBrowse link decreases expression ISO 5 102,304,948 102,336,608 RGD:6480464 CTD
G Psrc1 proline/serine-rich coiled-coil 1 GBrowse link decreases expression ISO 2 203,952,299 203,956,742 RGD:6480464 CTD
G Rab34 RAB34, member RAS oncogene family GBrowse link increases expression ISO 10 64,443,111 64,447,315 RGD:6480464 CTD
G Rad23a RAD23 homolog A (S. cerevisiae) GBrowse link decreases expression ISO 19 24,971,070 24,976,901 RGD:6480464 CTD
G Ran RAN, member RAS oncogene family GBrowse link decreases expression ISO 12 28,736,786 28,739,921 RGD:6480464 CTD
G Rara retinoic acid receptor, alpha GBrowse link increases mutagenesis ISO 10 87,740,479 87,753,265 RGD:6480464 CTD
G Rbm4 RNA binding motif protein 4 GBrowse link increases mutagenesis ISO 1 207,394,470 207,403,393 RGD:6480464 CTD
G Rfx4 regulatory factor X, 4 (influences HLA class II expression) GBrowse link increases mutagenesis ISO 7 20,976,369 21,052,088 RGD:6480464 CTD
G Rnf19a ring finger protein 19A, E3 ubiquitin protein ligase GBrowse link decreases expression ISO 7 71,763,837 71,803,435 RGD:6480464 CTD
G Rpl22l1 ribosomal protein L22 like 1 GBrowse link decreases expression ISO 2 116,168,790 116,170,726 RGD:6480464 CTD
G Rras related RAS viral (r-ras) oncogene homolog GBrowse link increases expression ISO 1 95,490,730 95,495,462 RGD:6480464 CTD
G Rrm2b ribonucleotide reductase M2 B (TP53 inducible) GBrowse link increases expression ISO 7 73,432,161 73,459,541 RGD:6480464 CTD
G Runx1 runt-related transcription factor 1 GBrowse link increases expression ISO 11 32,623,461 32,725,404 RGD:6480464 CTD
G Sgk1 serum/glucocorticoid regulated kinase 1 GBrowse link increases expression ISO 1 23,501,257 23,506,651 RGD:6480464 CTD
G Slc14a1 solute carrier family 14 (urea transporter), member 1 GBrowse link affects transport ISO 18 75,024,200 75,048,481 RGD:6480464 CTD
G Slc16a12 solute carrier family 16, member 12 (monocarboxylic acid transporter 12) GBrowse link increases mutagenesis ISO 1 238,643,040 238,665,699 RGD:6480464 CTD
G Snca synuclein, alpha (non A4 component of amyloid precursor) GBrowse link multiple interactions ISO 4 89,613,731 89,722,807 RGD:6480464 CTD
G Spink4 serine peptidase inhibitor, Kazal type 4 GBrowse link increases mutagenesis ISO 5 58,314,305 58,325,973 RGD:6480464 CTD
G Srxn1 sulfiredoxin 1 GBrowse link increases expression ISO 3 142,457,352 142,462,725 RGD:6480464 CTD
G Tbpl1 TBP-like 1 GBrowse link affects localization ISO 1 23,295,515 23,320,298 RGD:6480464 CTD
G Tmem69 transmembrane protein 69 GBrowse link increases mutagenesis ISO 5 136,831,040 136,834,619 RGD:6480464 CTD
G Tnf tumor necrosis factor GBrowse link increases secretion ISO 20 3,661,000 3,663,618 RGD:6480464 CTD
G Tnfrsf10b tumor necrosis factor receptor superfamily, member 10b GBrowse link increases expression ISO 15 50,138,439 50,163,254 RGD:6480464 CTD
G Top1 topoisomerase (DNA) I GBrowse link decreases expression ISO 3 151,428,931 151,512,884 RGD:6480464 CTD
G Tp53 tumor protein p53 GBrowse link increases expression ISO 10 56,399,721 56,411,150 RGD:6480464 CTD
G Tp53 tumor protein p53 GBrowse link multiple interactions ISO 10 56,399,721 56,411,150 RGD:6480464 CTD
G Tp53 tumor protein p53 GBrowse link increases expression ISO 10 56,399,721 56,411,150 RGD:6480464 CTD
G Tpp2 tripeptidyl peptidase II GBrowse link affects localization ISO 9 42,984,834 43,066,195 RGD:6480464 CTD
G Tpp2 tripeptidyl peptidase II GBrowse link affects localization ISO 9 42,984,834 43,066,195 RGD:6480464 CTD
G Tradd TNFRSF1A-associated via death domain GBrowse link multiple interactions ISO 19 35,073,150 35,075,251 RGD:6480464 CTD
G Trg T cell receptor gamma locus GBrowse link increases mutagenesis ISO 17 53,496,412 53,528,047 RGD:6480464 CTD
G Triap1 TP53 regulated inhibitor of apoptosis 1 GBrowse link increases expression ISO 12 42,535,655 42,538,148 RGD:6480464 CTD
G Ubac2 UBA domain containing 2 GBrowse link increases mutagenesis ISO 15 107,009,509 107,125,419 RGD:6480464 CTD
G Ube2c ubiquitin-conjugating enzyme E2C GBrowse link decreases expression ISO 3 155,800,357 155,802,757 RGD:6480464 CTD
G Xpc xeroderma pigmentosum, complementation group C GBrowse link increases expression ISO 4 125,672,674 125,699,925 RGD:6480464 CTD
G Xrcc4 X-ray repair complementing defective repair in Chinese hamster cells 4 GBrowse link decreases response to substance ISO 2 19,904,490 20,158,358 RGD:6480464 CTD
G Xrcc5 X-ray repair complementing defective repair in Chinese hamster cells 5 GBrowse link decreases expression ISO 9 71,472,459 71,581,936 RGD:6480464 CTD
G Xrcc5 X-ray repair complementing defective repair in Chinese hamster cells 5 GBrowse link increases mutagenesis ISO 9 71,472,459 71,581,936 RGD:6480464 CTD
G Zfp385a zinc finger protein 385A GBrowse link increases expression ISO 7 142,222,824 142,250,176 RGD:6480464 CTD
G Zfp52 zinc finger protein 52 GBrowse link decreases expression ISO 1 59,540,774 59,568,607 RGD:6480464 CTD

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 492507
    role 482196
      application 245130
        food additive 24032
          flour treatment agent 3865
            urea 2916
              ureas 2889
                hydroxyurea 145
Path 2
Term Annotations click to browse term
  CHEBI ontology 492507
    subatomic particle 491470
      composite particle 491470
        hadron 491470
          baryon 491470
            nucleon 491470
              atomic nucleus 491470
                atom 491470
                  main group element atom 461139
                    p-block element atom 458635
                      carbon group element atom 410624
                        carbon atom 407181
                          organic molecular entity 407174
                            organic group 167657
                              organic divalent group 166492
                                organodiyl group 166492
                                  carbonyl group 166182
                                    carbonyl compound 166182
                                      carboxylic acid 121381
                                        carboacyl group 40896
                                          univalent carboacyl group 40896
                                            carbamoyl group 37115
                                              carboxamide 37106
                                                monocarboxylic acid amide 24326
                                                  urea 2916
                                                    ureas 2889
                                                      hydroxyurea 145
paths to the root