X-group (possible homology)

4963 N-terminal additional helical subdomain in reovirus polymerase lambda3

Ligands and drugs

117
Member domains
15
with ligand contacts (≤ 4 Å)
12.8% of members
14
with DrugDomain annotations
12.0% of members
9
with a DrugBank compound
7.7% 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.

6
Proteins with classified ligands
4
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
Nucleosides, nucleotides, and analogues51.63.06×not tested
Organoheterocyclic compounds10.91.10×not tested
Homogeneous non-metal compounds11.30.79×not tested
Homogeneous metal compounds12.90.34×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
DB04137GTPGuanosine-5'-Triphosphate4
DB00171ATPATP1
DB01649GTA7-methyl-GpppA1
DB03493MG77-Methylguanosine1
DB03593G7M7-methyl-5'-guanylic acid1
DB03958GTG7-methyl-guanosine-5'-triphosphate-5'-guanosine1
DB04005UTPUridine 5'-triphosphate1
DB04315GDPGuanosine-5'-Diphosphate1

Most frequently bound compounds

PDB ligandNameDomains in contact
GTPGUANOSINE-5'-TRIPHOSPHATE4
CH13'-DEOXY-CYTIDINE-5'-TRIPHOSPHATE3
A1BVR5-(5-bromo-1-methyl-2-oxo-1,2-dihydrospiro[indole-3,4'-piperidin]-1'-yl)-3-chloropyridine-2-carbonitrile1
A2M2'-O-methyladenosine 5'-(dihydrogen phosphate)1
ATPADENOSINE-5'-TRIPHOSPHATE1
DPODIPHOSPHATE1
G7MN7-METHYL-GUANOSINE-5'-MONOPHOSPHATE1
GDPGUANOSINE-5'-DIPHOSPHATE1
GTAP1-7-METHYLGUANOSINE-P3-ADENOSINE-5',5'-TRIPHOSPHATE1
GTG7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-GUANOSINE1
MG77-METHYLGUANOSINE1
NAmetalSODIUM ION1
SVR8,8'-[CARBONYLBIS[IMINO-3,1-PHENYLENECARBONYLIMINO(4-METHYL-3,1-PHENYLENE)CARBONYLIMINO]]BIS-1,3,5-NAPHTHALENETRISULFONIC ACID1