DRG2

gene
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Summary

DRG2 (developmentally regulated GTP binding protein 2, HGNC:3030) is a protein-coding gene on chromosome 17p11.2, encoding Developmentally-regulated GTP-binding protein 2 (P55039). Catalyzes the conversion of GTP to GDP through hydrolysis of the gamma-phosphate bond in GTP.

This gene encodes a GTP-binding protein known to function in the regulation of cell growth and differentiation. Read-through transcripts containing this gene and a downstream gene have been identified, but they are not thought to encode a fusion protein. This gene is located within the Smith-Magenis syndrome region on chromosome 17.

Source: NCBI Gene 1819 — RefSeq curated summary.

At a glance

  • GWAS associations: 6
  • Clinical variants (ClinVar): 65 total — 1 pathogenic
  • MANE Select transcript: NM_001388

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:3030
Approved symbolDRG2
Namedevelopmentally regulated GTP binding protein 2
Location17p11.2
Locus typegene with protein product
StatusApproved
Ensembl geneENSG00000108591
Ensembl biotypeprotein_coding
OMIM602986
Entrez1819

Gene structure

Transcript identifiers

Ensembl transcripts: 34 — 18 protein_coding, 9 retained_intron, 7 nonsense_mediated_decay

ENST00000225729, ENST00000395726, ENST00000467099, ENST00000473213, ENST00000482564, ENST00000496428, ENST00000497744, ENST00000577450, ENST00000577771, ENST00000578173, ENST00000578767, ENST00000579224, ENST00000579601, ENST00000580055, ENST00000580929, ENST00000582314, ENST00000582419, ENST00000582528, ENST00000583162, ENST00000583355, ENST00000584212, ENST00000864160, ENST00000864161, ENST00000864162, ENST00000864163, ENST00000864164, ENST00000864165, ENST00000864166, ENST00000864167, ENST00000864168, ENST00000925712, ENST00000925714, ENST00000968692, ENST00000968693

RefSeq mRNA: 2 — MANE Select: NM_001388 NM_001330144, NM_001388

CCDS: CCDS11191, CCDS82082

Canonical transcript exons

ENST00000225729 — 13 exons

ExonStartEnd
ENSE000023711871810715418107969
ENSE000027014161808794818088087
ENSE000034946701809901718099077
ENSE000034994941810192118101997
ENSE000035074471810380118103889
ENSE000035766481810149318101590
ENSE000035935311810056918100659
ENSE000035963921810462318104681
ENSE000036289351810643318106486
ENSE000036487611809963318099723
ENSE000036507391809381318093973
ENSE000036622471809827018098359
ENSE000036694081810036318100435

Expression profiles

Bgee: expression breadth ubiquitous, 251 present calls, max score 93.30.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 27.3530 / max 191.2047, expressed in 1802 samples.

FANTOM5 promoters (3 alternative TSS)

Promoter IDTPM avgSamples expressed
15978225.92081792
1597810.9038617
1597830.5284136

Top tissues by expression

281 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
granulocyteCL:000009493.30gold quality
right lobe of liverUBERON:000111493.11gold quality
adenohypophysisUBERON:000219692.70gold quality
apex of heartUBERON:000209892.02gold quality
pituitary glandUBERON:000000791.87gold quality
type B pancreatic cellCL:000016991.84gold quality
lower esophagus mucosaUBERON:003583491.81gold quality
body of uterusUBERON:000985391.79gold quality
gastrocnemiusUBERON:000138891.70gold quality
right ovaryUBERON:000211891.53gold quality
right lobe of thyroid glandUBERON:000111991.49gold quality
olfactory bulbUBERON:000226491.47gold quality
left ovaryUBERON:000211991.44gold quality
endocervixUBERON:000045891.38gold quality
muscle of legUBERON:000138391.24gold quality
left lobe of thyroid glandUBERON:000112091.12gold quality
esophagogastric junction muscularis propriaUBERON:003584190.89gold quality
skin of legUBERON:000151190.83gold quality
lower esophagusUBERON:001347390.82gold quality
lower esophagus muscularis layerUBERON:003583390.82gold quality
left uterine tubeUBERON:000130390.73gold quality
left adrenal gland cortexUBERON:003582590.73gold quality
right uterine tubeUBERON:000130290.69gold quality
metanephros cortexUBERON:001053390.68gold quality
ectocervixUBERON:001224990.66gold quality
mucosa of stomachUBERON:000119990.58gold quality
muscle layer of sigmoid colonUBERON:003580590.58gold quality
hindlimb stylopod muscleUBERON:000425290.56gold quality
skin of abdomenUBERON:000141690.55gold quality
left adrenal glandUBERON:000123490.49gold quality

Single-cell (SCXA)

Detected in 2 experiment(s), a significant marker in 1.

ExperimentMarker?Max mean expression
E-ANND-3yes3.91
E-CURD-10no274.03

Regulation

Is transcription factor: no

Upstream regulators (CollecTRI, top): GLI1, SP1

miRNA regulators (miRDB)

38 targeting DRG2, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-4510100.0066.602050
HSA-MIR-6127100.0066.762188
HSA-MIR-6129100.0066.462080
HSA-MIR-6130100.0066.692012
HSA-MIR-6133100.0066.482064
HSA-MIR-6740-5P100.0065.64932
HSA-MIR-205-3P99.9269.923165
HSA-MIR-368699.9070.532432
HSA-MIR-6783-3P99.8967.922059
HSA-MIR-1343-3P99.8966.781815
HSA-MIR-4728-5P99.8569.394718
HSA-MIR-6785-5P99.8268.684428
HSA-MIR-6794-5P99.7666.381048
HSA-MIR-149-3P99.7268.223963
HSA-MIR-6883-5P99.6968.053785
HSA-MIR-7106-5P99.5367.473574
HSA-MIR-361299.4566.021333
HSA-MIR-65099.4565.771309
HSA-MIR-6722-3P99.4567.621919
HSA-MIR-318299.4068.152454
HSA-MIR-4652-3P99.3370.022742
HSA-MIR-6852-5P99.1766.692073
HSA-MIR-6799-5P99.1465.722093
HSA-MIR-939-3P98.9765.072347
HSA-MIR-5001-3P98.9167.281394
HSA-MIR-501-5P98.7768.881328
HSA-MIR-7155-5P98.6566.141290
HSA-MIR-4700-5P98.6367.431915
HSA-MIR-6742-3P97.9564.501490
HSA-MIR-808997.7466.211698

Literature-anchored findings (GeneRIF, showing 13)

  • overexpression of DRG2 in Jurkat cells affects genes regulating cell-cycle arrest and apoptosis, and that these molecular changes may be important in the growth or differentiation of cells (PMID:15113831)
  • Basal expression level of DRG2 is regulated by the Sp1 transcription factor. (PMID:21296692)
  • miR19153p functions as a silencer of apoptosis, which regulates lung cancer apoptosis via targeting DRG2/PBX2. (PMID:26572100)
  • Results demonstrate that DRG2 is an endosomal protein and a key regulator of Rab5 deactivation and Tfn recycling. (PMID:26582392)
  • Authors observed that knockdown of DRG2 in HeLa cells affected growth in a wound-healing assay, and tumorigenicity in nude mice xenografts. (PMID:27669826)
  • Taken together, our data demonstrate that DRG2 acts as a regulator of mitochondrial fission by controlling the expression of Drp1. (PMID:28363867)
  • Results show that the SNP (rs2257609 C>T) located in the intron region of SLC5A10 variant does not affect the expression of SLC5A10 mRNA, but alters the mRNA expression and promoter activity of DRG2. It is significantly associated with worse overall and disease-free survival of non-small-cell lung cancer (NSCLC) patients. (PMID:30281872)
  • Using immunoprecipitation, authors show that DRG2 interacts with tau, which regulates microtubule polymerization. Collectively, these data demonstrate that DRG2 may aid in affecting microtubule dynamics in HeLa cells. (PMID:30453731)
  • Knockdown of DRG2 in HeLa cells treated with epidermal growth factor (EGF) affects microtubule dynamics, perinuclear Golgi stacking, and cell migration. (PMID:31199931)
  • DRG2 supports the growth of primary tumors and metastases of melanoma by enhancing VEGF-A expression. (PMID:31693298)
  • Developmentally regulated GTP-binding protein 2 levels in prostate cancer cell lines impact docetaxel-induced apoptosis. (PMID:34190439)
  • Developmentally regulated GTP-binding protein-2 regulates adipocyte differentiation. (PMID:34520979)
  • Developmentally regulated GTPases: structure, function and roles in disease. (PMID:34664086)

Cross-species orthologs

5 orthologs

OrganismSymbolGene ID
danio_reriodrg2ENSDARG00000006642
mus_musculusDrg2ENSMUSG00000020537
rattus_norvegicusDrg2ENSRNOG00000055309
drosophila_melanogasterCG6195FBGN0038723
caenorhabditis_elegansWBGENE00015346

Paralogs (4): MTG2 (ENSG00000101181), GTPBP10 (ENSG00000105793), GTPBP4 (ENSG00000107937), DRG1 (ENSG00000185721)

Protein

Protein identifiers

Developmentally-regulated GTP-binding protein 2P55039 (reviewed: P55039)

Alternative names: Translation factor GTPase DRG2

All UniProt accessions (10): P55039, A8MZF9, J3KRL5, J3QKV7, J3QKW7, J3QL90, J3QLF3, J3QQI1, J3QR71, J3QRI9

UniProt curated annotations — full annotation on UniProt →

Function. Catalyzes the conversion of GTP to GDP through hydrolysis of the gamma-phosphate bond in GTP. When hydroxylated at C-3 of ‘Lys-21’ by JMJD7, may bind to RNA and play a role in translation.

Subunit / interactions. Interacts with RWDD1; this interaction confers protection to polyubiquitination and proteolytic degradation. Interacts with JMJD7; this interaction is direct.

Subcellular location. Nucleus. Cytoplasm.

Tissue specificity. Highest levels in skeletal muscle, heart and kidney. Low levels in colon, thymus, spleen, small intestine, lung and Leukocytes.

Post-translational modifications. Hydroxylated (with S stereochemistry) at C-3 of Lys-21 by JMJD7; this modification hinders trypsin-catalyzed proteolysis in vitro. Polyubiquitinated.

Similarity. Belongs to the TRAFAC class OBG-HflX-like GTPase superfamily. OBG GTPase family.

RefSeq proteins (2): NP_001317073, NP_001379* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR004095TGSDomain
IPR005225Small_GTP-bdDomain
IPR006073GTP-bdDomain
IPR006074GTP1-OBG_CSConserved_site
IPR012675Beta-grasp_dom_sfHomologous_superfamily
IPR012676TGS-likeHomologous_superfamily
IPR027417P-loop_NTPaseHomologous_superfamily
IPR031167G_OBGDomain
IPR031662GTP-binding_2Domain
IPR045001DRGFamily

Pfam: PF01926, PF02824, PF16897

Catalyzed reactions (Rhea), 1 shown:

  • GTP + H2O = GDP + phosphate + H(+) (RHEA:19669)

UniProt features (14 total): binding site 7, domain 2, sequence variant 2, chain 1, modified residue 1, mutagenesis site 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-P55039-F185.400.54

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Ligand- & substrate-binding residues (7): 69–76; 76; 94–98; 96; 115–118; 246–249; 269–271

Post-translational modifications (1): 21

Mutagenesis-validated functional residues (1):

PositionPhenotype
21impairs jmjd7-mediated hydroxylation and ribonucleic acid binding.

Function

Pathways and Gene Ontology

Reactome pathways

1 pathways

IDPathway
R-HSA-9629569Protein hydroxylation

MSigDB gene sets: 188 (showing top): GOBP_CYTOPLASMIC_TRANSLATION, HORIUCHI_WTAP_TARGETS_DN, SHEPARD_CRASH_AND_BURN_MUTANT_UP, GRAESSMANN_APOPTOSIS_BY_DOXORUBICIN_UP, GCM_MYCL1, GOBP_TRANSLATION, GCM_PRKCG, GCM_RING1, HOSHIDA_LIVER_CANCER_SUBCLASS_S3, GCM_FCGR2B, GCM_DPF2, MORF_PML, GCM_ATM, MORF_PDPK1, MORF_IKBKG

GO Biological Process (2): cytoplasmic translation (GO:0002181), signal transduction (GO:0007165)

GO Molecular Function (7): RNA binding (GO:0003723), GTPase activity (GO:0003924), GTP binding (GO:0005525), metal ion binding (GO:0046872), nucleotide binding (GO:0000166), protein binding (GO:0005515), hydrolase activity (GO:0016787)

GO Cellular Component (5): nucleus (GO:0005634), nucleoplasm (GO:0005654), cytoplasm (GO:0005737), cytosol (GO:0005829), membrane (GO:0016020)

Reactome top-level categories

Rollup of top-1 pathways:

CategoryPathways
Gamma carboxylation, hypusinylation, hydroxylation, and arylsulfatase activation1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular anatomical structure4
translation1
cell communication1
cellular process1
signaling1
regulation of cellular process1
cellular response to stimulus1
nucleic acid binding1
ribonucleoside triphosphate phosphatase activity1
guanyl ribonucleotide binding1
purine ribonucleoside triphosphate binding1
cation binding1
nucleoside phosphate binding1
heterocyclic compound binding1
binding1
catalytic activity1
intracellular membrane-bounded organelle1
nuclear lumen1
intracellular anatomical structure1
cytoplasm1

Protein interactions and networks

STRING

2718 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
DRG2RWDD1Q9H446926
DRG2ZC3H15Q8WU90805
DRG2GCN1Q92616615
DRG2LRRC18Q8N456605
DRG2JMJD7P0C870507
DRG2MAP7Q14244476
DRG2EAPPQ56P03472
DRG2ARFGEF3Q5TH69449
DRG2RPL27AP46776445
DRG2DRC3Q9H069432
DRG2MYO15AQ9UKN7419
DRG2ATPAF2Q8N5M1409
DRG2ZCCHC4Q9H5U6409
DRG2NATD1Q8N6N6400
DRG2MLECQ14165394

IntAct

53 interactions, top by confidence:

ABTypeScore
RWDD1DRG2psi-mi:“MI:0915”(physical association)0.900
DRG2RWDD1psi-mi:“MI:0915”(physical association)0.900
CFTRESYT2psi-mi:“MI:2364”(proximity)0.710
DRG2NAB2psi-mi:“MI:0915”(physical association)0.560
DRG2TSSK3psi-mi:“MI:0915”(physical association)0.560
JMJD7DRG2psi-mi:“MI:0915”(physical association)0.560
EIF4A3DRG2psi-mi:“MI:0915”(physical association)0.560
DRG2JPH3psi-mi:“MI:0915”(physical association)0.560
DRG2SPRED1psi-mi:“MI:0915”(physical association)0.560
DRG2HSPA8psi-mi:“MI:0914”(association)0.530
nleB1DRG2psi-mi:“MI:0915”(physical association)0.370
DRG2nleB1psi-mi:“MI:0915”(physical association)0.370
Xpo1IFT56psi-mi:“MI:0914”(association)0.350
HSCBRBP5psi-mi:“MI:0914”(association)0.350
MKI67ARHGAP10psi-mi:“MI:0914”(association)0.350
LRRK2psi-mi:“MI:0914”(association)0.350
Mpsi-mi:“MI:0914”(association)0.350
KCNE3PIK3R2psi-mi:“MI:0914”(association)0.350
DRG2MAPK13psi-mi:“MI:0914”(association)0.350
TNFRSF1BMAP3K7psi-mi:“MI:0914”(association)0.350
DRG2DHPSpsi-mi:“MI:0914”(association)0.350

BioGRID (105): RWDD1 (Two-hybrid), HSPA8 (Affinity Capture-MS), RWDD1 (Affinity Capture-MS), RWDD1 (Two-hybrid), DDX55 (Co-fractionation), RWDD1 (Co-fractionation), DRG2 (Proximity Label-MS), DRG2 (Proximity Label-MS), DRG2 (Affinity Capture-MS), CUL1 (Affinity Capture-Western), SKP1 (Affinity Capture-Western), RWDD1 (Affinity Capture-MS), HSPA8 (Affinity Capture-MS), DRG2 (Affinity Capture-MS), DRG2 (Proximity Label-MS)

ESM2 similar proteins: A0A384E139, A1RRV1, A1RVI0, A4YF02, B5YA17, C0QTG9, C3MKR6, C3MRI1, C3MUB4, C3MY77, C3MZK6, C3N1A2, C3N7M8, C3N992, C3NFU5, C3NMW1, C4KIT6, C4KKU5, E3GZ90, O27449, O29758, O58452, O67004, P32235, P39466, P55039, P77919, Q3AC00, Q4JC10, Q51796, Q54WT4, Q55075, Q57557, Q58947, Q58D56, Q5JGT7, Q6L0E6, Q8PWQ0, Q8RDH4, Q8U374

Diamond homologs: A0M5C6, A0Q1T4, A1VXH9, A2RE30, A2RJQ6, A3CM33, A3DBS5, A4VUC8, A4W0M2, A6TQJ6, A7H1H0, A7I166, A7Z781, A8AWM9, A8EV83, A8F478, A8FJQ1, A8MHK8, A8Z631, A8Z6G0, A9KMF5, B0K414, B0KAB8, B0S3Z4, B1HVB2, B1IBL9, B1YJR9, B2A6B7, B2GGD9, B2IQ29, B2USD4, B3PMC1, B4U3Q7, B5E4J4, B5YEQ1, B5ZA69, B6JKN2, B8CXZ0, B8E0B2, B8FM68

SIGNOR signaling

0 interactions.

Disease & clinical

Clinical variants and AI predictions

ClinVar

65 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic1
Likely pathogenic0
Uncertain significance49
Likely benign1
Benign3

Top pathogenic / likely-pathogenic (1)

Variant IDHGVSClassification
155143GRCh38/hg38 17p11.2(chr17:16858500-20559337)x1Pathogenic

SpliceAI

2105 predictions. Top by Δscore:

VariantEffectΔscore
17:18088085:AGG:Adonor_gain1.0000
17:18088086:GG:Gdonor_gain1.0000
17:18088086:GGG:Gdonor_gain1.0000
17:18088086:GGGTG:Gdonor_loss1.0000
17:18088087:G:GTdonor_gain1.0000
17:18088087:GGTGA:Gdonor_loss1.0000
17:18088088:G:GGdonor_gain1.0000
17:18088088:GTGA:Gdonor_loss1.0000
17:18088089:T:Adonor_loss1.0000
17:18093805:T:Gacceptor_gain1.0000
17:18093811:A:AGacceptor_gain1.0000
17:18093812:G:GGacceptor_gain1.0000
17:18098268:A:AGacceptor_gain1.0000
17:18098269:G:GGacceptor_gain1.0000
17:18098360:G:GGdonor_gain1.0000
17:18099015:A:AGacceptor_gain1.0000
17:18099016:G:GGacceptor_gain1.0000
17:18099630:CA:Cacceptor_loss1.0000
17:18099631:A:ACacceptor_loss1.0000
17:18099632:G:Tacceptor_loss1.0000
17:18099632:GGAA:Gacceptor_gain1.0000
17:18099710:G:GTdonor_gain1.0000
17:18099711:G:Tdonor_gain1.0000
17:18100432:CAAGG:Cdonor_loss1.0000
17:18100434:AGGTG:Adonor_loss1.0000
17:18100437:T:Gdonor_loss1.0000
17:18100567:A:AGacceptor_gain1.0000
17:18100568:G:GGacceptor_gain1.0000
17:18100660:G:GGdonor_gain1.0000
17:18100687:G:GTdonor_gain1.0000

AlphaMissense

2365 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
17:18088086:G:CK21N1.000
17:18088086:G:TK21N1.000
17:18093816:C:TT23I1.000
17:18093824:C:GH26D1.000
17:18093837:T:CL30P1.000
17:18093842:G:CA32P1.000
17:18093849:T:CL34P1.000
17:18093861:G:CR38P1.000
17:18093911:T:CF55L1.000
17:18093913:T:AF55L1.000
17:18093913:T:GF55L1.000
17:18093953:G:AG69R1.000
17:18093953:G:CG69R1.000
17:18093954:G:AG69E1.000
17:18093968:G:CG74R1.000
17:18093969:G:AG74D1.000
17:18093971:A:CK75Q1.000
17:18093972:A:TK75M1.000
17:18098324:T:CF94L1.000
17:18098325:T:CF94S1.000
17:18098325:T:GF94C1.000
17:18098326:C:AF94L1.000
17:18098326:C:GF94L1.000
17:18098341:T:GC99W1.000
17:18099042:T:CL114P1.000
17:18099044:G:CD115H1.000
17:18099045:A:GD115G1.000
17:18099048:T:CL116P1.000
17:18099053:G:AG118R1.000
17:18099053:G:CG118R1.000

dbSNP variants (sampled 300 via entrez): RS1000210526 (17:18105177 G>C), RS1000268454 (17:18098855 C>A), RS1000325226 (17:18092717 T>C), RS1000395212 (17:18094431 C>T), RS1000706461 (17:18106449 G>A), RS1000840361 (17:18089365 C>T), RS1001107885 (17:18090816 G>T), RS1001270265 (17:18091726 C>T), RS1001274133 (17:18088490 G>T), RS1001580384 (17:18101181 C>G), RS1001599269 (17:18104575 G>T), RS1001675008 (17:18095323 T>C), RS1001937548 (17:18103227 G>C), RS1002005408 (17:18096436 C>T), RS1002052549 (17:18103498 GC>G)

Disease associations

OMIM: gene MIM:602986 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

6 associations (top):

StudyTraitp-value
GCST002539_86Schizophrenia2.000000e-08
GCST004946_149Schizophrenia7.000000e-10
GCST012229_193Hip index5.000000e-09
GCST012229_194Hip index5.000000e-08
GCST90020024_515A body shape index2.000000e-08
GCST90020029_583Waist circumference adjusted for body mass index7.000000e-11

EFO canonical traits (2, from GWAS)

EFO IDTrait name
EFO:0008039BMI-adjusted hip circumference
EFO:0007789BMI-adjusted waist circumference

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

29 total (human), top 29 by PubMed support.

ChemicalActions (top 5)PubMed papers
aristolochic acid Iincreases expression1
bisphenol Faffects cotreatment, increases expression1
2,4,6-tribromophenolincreases expression1
bisphenol Adecreases expression1
decabromobiphenyl etherincreases expression1
beta-lapachonedecreases expression1
14-deoxy-11,12-didehydroandrographolidedecreases expression1
abrineincreases expression1
2,2’,4,4’-tetrabromodiphenyl etherincreases expression1
pentabrominated diphenyl ether 100increases expression1
hexabrominated diphenyl ether 153decreases expression1
Temozolomideincreases expression1
Air Pollutants, Occupationalaffects expression1
Benzo(a)pyrenedecreases methylation1
Dexamethasoneincreases expression, affects cotreatment1
Doxorubicinincreases expression1
Estradioldecreases expression1
Indomethacinaffects cotreatment, increases expression1
Ivermectindecreases expression1
Quercetindecreases expression1
Ribonucleotidesaffects binding1
Seleniumincreases expression1
Smokedecreases expression1
Vitalliumincreases expression1
Vitamin Eincreases expression1
1-Methyl-3-isobutylxanthineaffects cotreatment, increases expression1
beta-Naphthoflavoneincreases expression1
Genisteindecreases expression, increases expression1
Acrylamidedecreases expression1

Clinical trials (associated diseases)

0 trials via MONDO — disease-level, not drug-specific.

No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.