ECOD
X-group (possible homology)

5032 Photosystem II 10 kDa phosphoprotein PsbH

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Ligands and drugs

377
Member domains
332
with ligand contacts (≤ 4 Å)
88.1% of members
254
with DrugDomain annotations
67.4% of members
254
with a DrugBank compound
67.4% 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.

17
Proteins with classified ligands
5
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 compounds18.20.12×q = 8.4e-4
Lipids and lipid-like molecules171.99.11×not tested
Hydrocarbons10.18.54×not tested
Organoheterocyclic compounds172.66.59×not tested
Organic oxygen compounds23.30.60×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
DB02133CLAChlorophyll A247
DB03426DGDDigalactosyl Diacyl Glycerol (Dgdg)218
DB06755BCRBeta carotene199
DB04450HTGHeptyl 1-Thiohexopyranoside51
DB15914RRXCryptoxanthin45
DB03193STEStearic acid34
DB02043LHG1,2-Dipalmitoyl-Phosphatidyl-Glycerole10

Most frequently bound compounds

PDB ligandNameDomains in contact
CLACHLOROPHYLL A325
DGDDIGALACTOSYL DIACYL GLYCEROL (DGDG)296
BCRBETA-CAROTENE255
LMG1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE115
UNLUnknown ligand88
HTGheptyl 1-thio-beta-D-glucopyranoside85
RRX(3R)-beta,beta-caroten-3-ol58
SQD1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL44
STESTEARIC ACID42
LHG1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE17
DGADIACYL GLYCEROL15
8CT(6'R,11cis,11'cis,13cis,15cis)-4',5'-didehydro-5',6'-dihydro-beta,beta-carotene10
CL7CHLOROPHYLL D6
LFAEICOSANE6
NEX(1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL5
PLMPALMITIC ACID5
WVN1,3,3-trimethyl-2-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-[(1R)-2,6,6-trimethylcyclohex-2-en-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohexene4
CHLCHLOROPHYLL B2
CAmetalCALCIUM ION1
P6GHEXAETHYLENE GLYCOL1