X-group (possible homology)

7514 Ferredoxin reductase-like, C-terminal NADP-linked domain

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Ligands and drugs

1,712

Member domains

442

with ligand contacts (≤ 4 Å)

25.8% of members

398

with DrugDomain annotations

23.2% of members

393

with a DrugBank compound

23.0% 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)

4.8

Superclasses per 20 proteins

narrower than 86% of the 256 X-groups with enough proteins to compare (median 7.6)

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
Nucleosides, nucleotides, and analogues	78	21.5	3.62×	q < 0.0001
Homogeneous metal compounds	15	38.2	0.39×	q < 0.0001
Homogeneous non-metal compounds	6	16.8	0.36×	q = 4.8e-3
Benzenoids	2	5.7	0.35×	q = 0.18
Organoheterocyclic compounds	4	12.0	0.33×	q = 0.02
Organic oxygen compounds	3	15.5	0.19×	q = 2.7e-4
Lipids and lipid-like molecules	1	8.7	0.12×	q = 4.2e-3
Organic acids and derivatives	0	12.1	0	q < 0.0001

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	378
DB03461	NAP	Nicotinamide adenine dinucleotide phosphate	98
DB03247	FMN	Flavin mononucleotide	38
DB02098	A2P	Adenosine-2'-5'-Diphosphate	21
DB18267	HEM	Ferroheme	11
DB14128	NAD	Nadide	9
DB00157	NAI	NADH	6
DB03979	DGG	1-[Glycerolylphosphonyl]-2-[8-(2-Hexyl-Cyclopropyl)-Octanal-1-Yl]-3-[Hexadecanal-1-Yl]-Glycerol	5
DB02338	NDP	NADPH	4
DB02701	NCA	Nicotinamide	3
DB04450	HTG	Heptyl 1-Thiohexopyranoside	3
DB00155	—	Citrulline	2
DB02027	—	N-{(4S)-4-Amino-5-[(2-aminoethyl)amino]pentyl}-N'-nitroguanidine	2
DB02044	—	N-[3-(aminomethyl)benzyl]acetamidine	2
DB03707	—	S-Ethyl-N-Phenyl-Isothiourea	2
DB04223	—	Nitroarginine	2
DB08018	—	N-{(3S,4S)-4-[(6-AMINO-4-METHYLPYRIDIN-2-YL)METHYL]PYRROLIDIN-3-YL}-N'-(4-CHLOROBENZYL)ETHANE-1,2-DIAMINE	2
DB08019	—	N-{(3R,4S)-4-[(6-amino-4-methylpyridin-2-yl)methyl]pyrrolidin-3-yl}-N'-(3-chlorobenzyl)ethane-1,2-diamine	2
DB00115	—	Cyanocobalamin	1
DB00134	—	Methionine	1

Most frequently bound compounds

PDB ligand	Name	Domains in contact
FAD	FLAVIN-ADENINE DINUCLEOTIDE	415
NAP	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE	99
A2P	ADENOSINE-2'-5'-DIPHOSPHATE	21
FMN	FLAVIN MONONUCLEOTIDE	21
MGmetal	MAGNESIUM ION	18
CL	CHLORIDE ION	16
NDP	NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE	16
ZNmetal	ZINC ION	14
NAmetal	SODIUM ION	13
2AM	ADENOSINE-2'-MONOPHOSPHATE	12
HEM	PROTOPORPHYRIN IX CONTAINING FE	10
NAD	NICOTINAMIDE-ADENINE-DINUCLEOTIDE	10
FDA	DIHYDROFLAVINE-ADENINE DINUCLEOTIDE	8
NAI	1,4-DIHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE	7
CAmetal	CALCIUM ION	5
U4O	[4-[[(4~{E})-4-(furan-2-ylmethylidene)-2,3-dihydro-1~{H}-acridin-9-yl]carbonyl]piperazin-1-yl]-pyridin-2-yl-methanone	4
BR	BROMIDE ION	3
DGG	1-[GLYCEROLYLPHOSPHONYL]-2-[8-(2-HEXYL-CYCLOPROPYL)-OCTANAL-1-YL]-3-[HEXADECANAL-1-YL]-GLYCEROL	3
HTG	heptyl 1-thio-beta-D-glucopyranoside	3
IOD	IODIDE ION	3