X-group (possible homology)

842 Thymidylate synthase-complementing protein Thy1

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Ligands and drugs

303

Member domains

181

with ligand contacts (≤ 4 Å)

59.7% of members

165

with DrugDomain annotations

54.5% of members

162

with a DrugBank compound

53.5% 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

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

Proteins with classified ligands

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.

Superclass	Proteins	Expected	Ratio	Significance
Organosulfur compounds	1	0.2	6.16×	not tested
Nucleosides, nucleotides, and analogues	8	2.2	3.67×	not tested
Benzenoids	1	0.6	1.73×	not tested
Homogeneous non-metal compounds	2	1.7	1.18×	not tested
Organoheterocyclic compounds	1	1.2	0.82×	not tested
Organic acids and derivatives	1	1.2	0.82×	not tested
Homogeneous metal compounds	1	3.9	0.26×	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

DrugBank	PDB ligand	Name	Domains
DB03147	FAD	Flavin adenine dinucleotide	141
DB03800	UMP	Deoxyuridine monophosphate	58
DB01903	BRU	5-Bromo-2'-deoxyuridine 5'-(dihydrogen phosphate)	16
DB03761	UFP	5-fluoro-2'-deoxyuridine-5'-monophosphate	16
DB12676	MEF	Modufolin	6
DB02256	DUR	2'-Deoxyuridine	4
DB03461	NAP	Nicotinamide adenine dinucleotide phosphate	4
DB00140	RBF	Riboflavin	1
DB00293	D16	Raltitrexed	1
DB11596	FFO	Levoleucovorin	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
FAD	FLAVIN-ADENINE DINUCLEOTIDE	145
UMP	2'-DEOXYURIDINE 5'-MONOPHOSPHATE	54
FDA	DIHYDROFLAVINE-ADENINE DINUCLEOTIDE	23
0VJ	2-hydroxy-3-(4-methoxybenzyl)naphthalene-1,4-dione	16
UFP	5-FLUORO-2'-DEOXYURIDINE-5'-MONOPHOSPHATE	16
IOD	IODIDE ION	10
BRU	5-BROMO-2'-DEOXYURIDINE-5'-MONOPHOSPHATE	8
DU	2'-DEOXYURIDINE-5'-MONOPHOSPHATE	8
HUF	[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl] [(2R,3S,4S)-5-[5-methanoyl-7,8-dimethyl-2,4-bis(oxidanylidene)-1H-benzo[g]pteridin-10-yl]-2,3,4-tris(oxidanyl)pentyl] hydrogen phosphate	8
MEF	N-({4-[(6aR)-3-amino-1-oxo-1,2,5,6,6a,7-hexahydroimidazo[1,5-f]pteridin-8(9H)-yl]phenyl}carbonyl)-L-glutamic acid	6
CL	CHLORIDE ION	5
5BU	5-BROMO-URIDINE-5'-MONOPHOSPHATE	4
DUR	2'-DEOXYURIDINE	4
Kmetal	POTASSIUM ION	4
NAP	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE	4
PG6	1-(2-METHOXY-ETHOXY)-2-{2-[2-(2-METHOXY-ETHOXY]-ETHOXY}-ETHANE	3
P6G	HEXAETHYLENE GLYCOL	2
DUS	2'-deoxy-5'-O-sulfouridine	1
FFO	N-[4-({[(6S)-2-amino-5-formyl-4-oxo-3,4,5,6,7,8-hexahydropteridin-6-yl]methyl}amino)benzoyl]-L-glutamic acid	1
UMC	2'-deoxy-5'-uridylic acid	1