ECOD
T-group (topology)

101.1.1 Three-helical HTH

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Ligands and drugs

24,488
Member domains
1,953
with ligand contacts (≤ 4 Å)
8.0% of members
1,618
with DrugDomain annotations
6.6% of members
616
with a DrugBank compound
2.5% of members

Aggregated over all current member domains of this group. Drug annotations come from DrugDomain; buffers and crystallization additives are excluded from the tables below.

Chemical profile

Chemical profiles are computed for X-groups. 101.1.1 belongs to X-group 101 HTH, which binds 8.7 ligand superclasses per 20 proteins, broader than 73% of the 256 X-groups with enough proteins to compare. View its chemical profile →

DrugBank compounds

DrugBankPDB ligandNameDomains
DB17031ETHomidium16
DB03895MGRMalachite Green14
DB00406CVIGentian violet cation11
DB03264DCCDodecyl-Coa10
DB01017MIYMinocycline8
DB03309NHEN-cyclohexyltaurine8
DB03419URAUracil8
DB03796PLMPalmitic Acid8
DB04555CDPCytidine-5'-Diphosphate8
DB09459TLAL-tartaric acid8
DB03825RHQRhodamine 6G7
DB04209DEQDequalinium7
DB00759TACTetracycline6
DB01123PRLProflavine6
DB02709STLResveratrol6
DB02832SRMSiroheme6
DB04115BERBerberine6
DB00254DXTDoxycycline5
DB01045RFPRifampin5
DB04447DTT1,4-Dithiothreitol5

Most frequently bound compounds

PDB ligandNameDomains in contact
ZNmetalZINC ION526
MGmetalMAGNESIUM ION284
CLCHLORIDE ION104
FESFE2/S2 (INORGANIC) CLUSTER84
1N7CHAPSO30
CAmetalCALCIUM ION22
NImetalNICKEL (II) ION18
SF4IRON/SULFUR CLUSTER18
KmetalPOTASSIUM ION17
MGRMALACHITE GREEN14
NAmetalSODIUM ION14
NHE2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID12
TDC5A,6-ANHYDROTETRACYCLINE12
CVICRYSTAL VIOLET11
CTPCYTIDINE-5'-TRIPHOSPHATE10
UNXUNKNOWN ATOM OR ION10
CDmetalCADMIUM ION9
DCCDODECYL-COA9
TLAL(+)-TARTARIC ACID9
CDPCYTIDINE-5'-DIPHOSPHATE8