X-group (possible homology)

177 Phospholipase C/P1 nuclease

Ligands and drugs

162
Member domains
66
with ligand contacts (≤ 4 Å)
40.7% of members
53
with DrugDomain annotations
32.7% of members
29
with a DrugBank compound
17.9% 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.

10
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
Homogeneous metal compounds104.82.07×not tested
Organic oxygen compounds32.01.53×not tested
Nucleosides, nucleotides, and analogues32.71.10×not tested
Lipids and lipid-like molecules11.10.91×not tested
Organoheterocyclic compounds11.50.66×not tested
Homogeneous non-metal compounds12.10.47×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
DB00141NAGN-Acetylglucosamine16
DB02594DCZDoxecitine3
DB00131AMPAdenosine phosphate2
DB02745URIUridine2
DB03403C5PCytidine-5'-Monophosphate2
DB00173ADEAdenine1
DB01643TMPThymidine monophosphate1
DB02225PC51,2-Di-N-Pentanoyl-Sn-Glycero-3-Dithiophosphocholine1
DB02980THSThymidine-5'-(dithio)phosphate1
DB03798DCM2'-Deoxycytidine-5'-Monophosphate1
DB038273PC(3s)-3,4-Di-N-Hexanoyloxybutyl-1-Phosphocholine1
DB04332ETE2-{2-[2-2-(Methoxy-Ethoxy)-Ethoxy]-Ethoxy}-Ethanol1

Most frequently bound compounds

PDB ligandNameDomains in contact
ZNmetalZINC ION65
NAG2-acetamido-2-deoxy-beta-D-glucopyranose15
NAmetalSODIUM ION9
C5PCYTIDINE-5'-MONOPHOSPHATE6
CAmetalCALCIUM ION6
CDmetalCADMIUM ION6
CLCHLORIDE ION4
5GPGUANOSINE-5'-MONOPHOSPHATE3
AMPADENOSINE MONOPHOSPHATE3
DCZ2'-DEOXYCYTIDINE3
FEmetalFE (III) ION2
U5PURIDINE-5'-MONOPHOSPHATE2
URIURIDINE2
3PC(3S)-3,4-DI-N-HEXANOYLOXYBUTYL-1-PHOSPHOCHOLINE1
ADEADENINE1
AS2-DEOXY-ADENOSINE -5'-THIO-MONOPHOSPHATE1
D5M2'-DEOXYADENOSINE-5'-MONOPHOSPHATE1
DCM2'-DEOXYCYTIDINE-5'-MONOPHOSPHATE1
ETE2-{2-[2-2-(METHOXY-ETHOXY)-ETHOXY]-ETHOXY}-ETHANOL1
GNG2'-DEOXY-GUANOSINE1