X-group (possible homology)

133 DH domain-like

Ligands and drugs

884
Member domains
81
with ligand contacts (≤ 4 Å)
9.2% of members
78
with DrugDomain annotations
8.8% of members
74
with a DrugBank compound
8.4% 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

ClassyFire chemical superclasses of the ligands bound by this X-group's proteins, from DrugDomain annotations.

4
Proteins with classified ligands
6
Superclasses bound (of 23)
—
Superclasses per 20 proteins
fewer than 20 proteins: too few to compare at equal depth

The raw number of superclasses rises with the number of proteins sampled; the per-20 value compares X-groups at equal depth.

SuperclassProteinsExpected
0.25×observed / expected4×
RatioSignificance
Organohalogen compounds10.089×not tested
Organic nitrogen compounds10.17.95×not tested
Organoheterocyclic compounds30.64.94×not tested
Benzenoids10.33.47×not tested
Organic acids and derivatives10.61.64×not tested
Nucleosides, nucleotides, and analogues11.10.92×not tested
enriched (q < 0.05)depleted (q < 0.05)not significantnot tested (expected < 5)

Unit: a protein (UniProt accession) with a ligand-binding domain in this X-group, counted once per superclass. Expected counts use each superclass's frequency across all ligand-binding X-groups; significance is Fisher's exact test with Benjamini–Hochberg correction. Buffers and crystallization additives are excluded. ECOD v295.2; the method follows the ECOD 2027 update, whose published figures used a slightly different artifact filter.

DrugBank compounds

DrugBankPDB ligandNameDomains
DB02031THG(6S)-5,6,7,8-tetrahydrofolic acid2
DB00116——1
DB00142—Glutamic acid1
DB03247FMNFlavin mononucleotide1
DB03256—(6R)-Folinic acid1

Most frequently bound compounds

PDB ligandNameDomains in contact
UNXUNKNOWN ATOM OR ION3
LXA~{N}-(1~{H}-benzimidazol-2-ylmethyl)-2-methoxy-ethanamide2
THG(6S)-5,6,7,8-TETRAHYDROFOLATE2
60P3-methylthiophene-2-carboxylic acid1
9JY(2S)-3-[(3S)-1-(ethylsulfonyl)piperidin-3-yl]-2-{[3-(4-methylphenyl)imidazo[1,2-a]pyrazin-8-yl]amino}propan-1-ol1
9K1(2S)-2-{[3-(4-methylphenyl)imidazo[1,2-a]pyrazin-8-yl]amino}-3-(pyridin-3-yl)propan-1-ol1
KLU(2S)-4-(chloroacetyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxamide1
LFON,1-dimethyl-1H-indole-3-carboxamide1
O2AN-methyl-1H-indole-7-carboxamide1
RWS1-(5-methyl-1,3,4-thiadiazol-2-yl)piperidine1
T7YN-[3-(2-oxopyrrolidin-1-yl)phenyl]acetamide1
UWS6-methyl-2-[(3-methyl-1,2-oxazol-5-yl)methyl]pyridazin-3(2H)-one1
VW7N-(8-methyl-1,2,3,4-tetrahydroquinolin-5-yl)acetamide1
W0YN-methyl-4-sulfamoylbenzamide1
WJ72-bromo-4-fluoro-N,N-dimethylbenzamide1
WKYN-(3-methylpyridin-4-yl)acetamide1
YXBN-[(1H-indol-4-yl)methyl]ethanamine1
YXH1-(1H-benzimidazol-2-yl)methanamine1
YXU5-methoxy-1H-pyrrolo[3,2-b]pyridine1
YXY4,4-difluorocyclohexane-1-carboxamide1