LRRC17
gene geneOn this page
Also known as P37NBH_RG318M05.3
Summary
LRRC17 (leucine rich repeat containing 17, HGNC:16895) is a protein-coding gene on chromosome 7q22.1, encoding Leucine-rich repeat-containing protein 17 (Q8N6Y2). Involved in bone homeostasis.
Predicted to be involved in bone marrow development and negative regulation of osteoclast differentiation. Predicted to be located in extracellular region. Predicted to be active in extracellular matrix and extracellular space.
Source: NCBI Gene 10234 — RefSeq curated summary.
At a glance
- GWAS associations: 1
- Clinical variants (ClinVar): 2 total
- MANE Select transcript:
NM_001031692
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:16895 |
| Approved symbol | LRRC17 |
| Name | leucine rich repeat containing 17 |
| Location | 7q22.1 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | P37NB, H_RG318M05.3 |
| Ensembl gene | ENSG00000128606 |
| Ensembl biotype | protein_coding |
| OMIM | 618749 |
| Entrez | 10234 |
Gene structure
Transcript identifiers
Ensembl transcripts: 8 — 6 protein_coding, 2 protein_coding_CDS_not_defined
ENST00000249377, ENST00000339431, ENST00000455453, ENST00000485478, ENST00000498487, ENST00000875757, ENST00000875758, ENST00000965933
RefSeq mRNA: 2 — MANE Select: NM_001031692
NM_001031692, NM_005824
CCDS: CCDS34721, CCDS5727
Canonical transcript exons
ENST00000339431 — 4 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001364991 | 102933774 | 102934685 |
| ENSE00001516446 | 102913000 | 102913145 |
| ENSE00003645513 | 102939430 | 102939585 |
| ENSE00003645974 | 102944210 | 102945111 |
Expression profiles
Bgee: expression breadth ubiquitous, 240 present calls, max score 98.70.
FANTOM5 (CAGE): breadth broad, TPM avg 18.3422 / max 620.1543, expressed in 837 samples.
FANTOM5 promoters (5 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 80263 | 10.1932 | 721 |
| 80264 | 6.5970 | 629 |
| 80262 | 1.0765 | 266 |
| 80265 | 0.3708 | 155 |
| 80266 | 0.1047 | 46 |
Top tissues by expression
281 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| secondary oocyte | CL:0000655 | 98.70 | gold quality |
| oocyte | CL:0000023 | 97.92 | gold quality |
| periodontal ligament | UBERON:0008266 | 96.57 | gold quality |
| right coronary artery | UBERON:0001625 | 94.57 | gold quality |
| left ovary | UBERON:0002119 | 94.00 | gold quality |
| right ovary | UBERON:0002118 | 93.04 | gold quality |
| ventricular zone | UBERON:0003053 | 92.80 | gold quality |
| ovary | UBERON:0000992 | 92.47 | gold quality |
| descending thoracic aorta | UBERON:0002345 | 92.29 | gold quality |
| gall bladder | UBERON:0002110 | 89.80 | gold quality |
| blood vessel layer | UBERON:0004797 | 88.86 | gold quality |
| coronary artery | UBERON:0001621 | 88.63 | gold quality |
| vena cava | UBERON:0004087 | 88.59 | gold quality |
| thoracic aorta | UBERON:0001515 | 88.33 | gold quality |
| left coronary artery | UBERON:0001626 | 88.26 | gold quality |
| ascending aorta | UBERON:0001496 | 88.11 | gold quality |
| male germ line stem cell (sensu Vertebrata) in testis | CL:0000089 ∩ UBERON:0000473 | 87.69 | gold quality |
| buccal mucosa cell | CL:0002336 | 87.41 | gold quality |
| mucosa of paranasal sinus | UBERON:0005030 | 86.62 | gold quality |
| cardiac muscle of right atrium | UBERON:0003379 | 86.45 | gold quality |
| ganglionic eminence | UBERON:0004023 | 85.59 | gold quality |
| tibia | UBERON:0000979 | 85.46 | gold quality |
| calcaneal tendon | UBERON:0003701 | 85.18 | gold quality |
| mammary duct | UBERON:0001765 | 83.89 | gold quality |
| parietal pleura | UBERON:0002400 | 83.69 | gold quality |
| stromal cell of endometrium | CL:0002255 | 83.57 | gold quality |
| skin of hip | UBERON:0001554 | 83.56 | gold quality |
| endocervix | UBERON:0000458 | 83.53 | gold quality |
| mammalian vulva | UBERON:0000997 | 83.44 | gold quality |
| adrenal tissue | UBERON:0018303 | 83.14 | gold quality |
Single-cell (SCXA)
Detected in 3 experiment(s), a significant marker in 3.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-HCAD-56 | yes | 1078.90 |
| E-HCAD-10 | yes | 60.43 |
| E-ANND-3 | yes | 5.78 |
Regulation
Is transcription factor: no
miRNA regulators (miRDB)
86 targeting LRRC17, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-30A-5P | 100.00 | 76.31 | 3233 |
| HSA-MIR-30B-5P | 100.00 | 76.29 | 3248 |
| HSA-MIR-30C-5P | 100.00 | 76.29 | 3248 |
| HSA-MIR-30D-5P | 100.00 | 76.32 | 3233 |
| HSA-MIR-30E-5P | 100.00 | 76.32 | 3242 |
| HSA-MIR-4673 | 100.00 | 66.64 | 1490 |
| HSA-MIR-3613-3P | 100.00 | 76.36 | 7965 |
| HSA-MIR-3163 | 100.00 | 77.23 | 8605 |
| HSA-MIR-568 | 99.98 | 69.86 | 2084 |
| HSA-MIR-4645-5P | 99.98 | 65.81 | 1284 |
| HSA-LET-7F-2-3P | 99.98 | 70.98 | 2588 |
| HSA-MIR-1185-1-3P | 99.98 | 71.04 | 2593 |
| HSA-MIR-1185-2-3P | 99.98 | 71.04 | 2593 |
| HSA-MIR-12136 | 99.98 | 72.81 | 5713 |
| HSA-MIR-507 | 99.97 | 70.11 | 1915 |
| HSA-MIR-607 | 99.97 | 73.62 | 5593 |
| HSA-MIR-3688-3P | 99.97 | 72.02 | 2834 |
| HSA-MIR-557 | 99.96 | 70.01 | 1640 |
| HSA-MIR-450B-5P | 99.92 | 71.48 | 3175 |
| HSA-MIR-589-3P | 99.91 | 69.62 | 2088 |
| HSA-MIR-576-5P | 99.84 | 70.46 | 2582 |
| HSA-MIR-4495 | 99.82 | 72.08 | 3080 |
| HSA-MIR-4307 | 99.82 | 70.45 | 3374 |
| HSA-MIR-4799-5P | 99.82 | 70.60 | 2663 |
| HSA-MIR-4659A-3P | 99.80 | 72.62 | 4248 |
| HSA-MIR-4659B-3P | 99.80 | 72.62 | 4248 |
| HSA-MIR-4694-3P | 99.79 | 69.53 | 2640 |
| HSA-MIR-199A-3P | 99.75 | 70.48 | 929 |
| HSA-MIR-199B-3P | 99.75 | 70.48 | 929 |
| HSA-MIR-3129-5P | 99.75 | 70.46 | 914 |
Literature-anchored findings (GeneRIF, showing 4)
- Whole-genome microarray mRNA-expression profiles of myofibroblasts and skin fibroblasts revealed four additional genes that are significantly differentially expressed in these two cell types: NKX2-3 and LRRC17 in myofibroblasts and SHOX2 and TBX5 in skin fibroblasts (PMID:27036009)
- low circulating plasma level of LRRc17 might serve as an independent and additive risk factor for osteoporotic fractures. (PMID:27355564)
- LRRC17 Is Linked to Prognosis of Ovarian Cancer Through a p53-dependent Anti-apoptotic Function. (PMID:32988884)
- LRRc17 controls BMSC senescence via mitophagy and inhibits the therapeutic effect of BMSCs on ovariectomy-induced bone loss. (PMID:33865167)
Cross-species orthologs
3 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | lrrc17 | ENSDARG00000037960 |
| mus_musculus | Lrrc17 | ENSMUSG00000039883 |
| rattus_norvegicus | Lrrc17 | ENSRNOG00000012817 |
Paralogs (22): IGFALS (ENSG00000099769), TLR8 (ENSG00000101916), RXFP2 (ENSG00000133105), CD180 (ENSG00000134061), TLR4 (ENSG00000136869), TLR2 (ENSG00000137462), LRRC32 (ENSG00000137507), LRRC3 (ENSG00000160233), LRRC53 (ENSG00000162621), TLR3 (ENSG00000164342), VASN (ENSG00000168140), RXFP1 (ENSG00000171509), NRROS (ENSG00000174004), TLR10 (ENSG00000174123), TLR1 (ENSG00000174125), TLR6 (ENSG00000174130), LRRC3B (ENSG00000179796), TSKU (ENSG00000182704), TLR5 (ENSG00000187554), TLR7 (ENSG00000196664), LRIT2 (ENSG00000204033), LRRC3C (ENSG00000204913)
Protein
Protein identifiers
Leucine-rich repeat-containing protein 17 — Q8N6Y2 (reviewed: Q8N6Y2)
Alternative names: p37NB
All UniProt accessions (2): Q8N6Y2, C9JT74
UniProt curated annotations — full annotation on UniProt →
Function. Involved in bone homeostasis. Acts as a negative regulator of RANKL-induced osteoclast precursor differentiation from bone marrow precursors.
Subcellular location. Secreted. Extracellular space.
Tissue specificity. Expressed in osteoblast cell lines. Well expressed in ovary, heart, pancreas, skeletal muscle, lung, and fetal kidney and lung and only at the basal levels in the other tissues examined including adult kidney. More expressed in S-type neuroblastoma cells than in N-type neuroblastoma cells.
Isoforms (2)
| UniProt ID | Names | Canonical? |
|---|---|---|
| Q8N6Y2-1 | 1 | yes |
| Q8N6Y2-2 | 2 |
RefSeq proteins (2): NP_001026862, NP_005815 (=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR000483 | Cys-rich_flank_reg_C | Domain |
| IPR001611 | Leu-rich_rpt | Repeat |
| IPR003591 | Leu-rich_rpt_typical-subtyp | Repeat |
| IPR032675 | LRR_dom_sf | Homologous_superfamily |
| IPR050541 | LRR_TM_domain-containing | Family |
Pfam: PF13855
UniProt features (17 total): repeat 6, domain 3, sequence variant 3, splice variant 2, signal peptide 1, chain 1, sequence conflict 1
Structure
Experimental structures (PDB)
0 structures.
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q8N6Y2-F1 | 78.90 | 0.59 |
Function
Pathways and Gene Ontology
Reactome pathways
0 pathways
MSigDB gene sets: 158 (showing top):
BROWNE_HCMV_INFECTION_30MIN_DN, GOBP_MYELOID_CELL_DIFFERENTIATION, GSE45365_CTRL_VS_MCMV_INFECTION_NK_CELL_UP, GSE45365_NK_CELL_VS_CD8A_DC_UP, HORIUCHI_WTAP_TARGETS_DN, ACTACCT_MIR196A_MIR196B, GOBP_NEGATIVE_REGULATION_OF_CELL_DEVELOPMENT, GOBP_REGULATION_OF_OSTEOCLAST_DIFFERENTIATION, GOBP_SKELETAL_SYSTEM_DEVELOPMENT, GOBP_OSTEOBLAST_DIFFERENTIATION, GNF2_PTX3, GOBP_MYELOID_LEUKOCYTE_DIFFERENTIATION, GOBP_REGULATION_OF_LEUKOCYTE_DIFFERENTIATION, GOBP_REGULATION_OF_HEMOPOIESIS, GOBP_BONE_DEVELOPMENT
GO Biological Process (3): ossification (GO:0001503), negative regulation of osteoclast differentiation (GO:0045671), bone marrow development (GO:0048539)
GO Molecular Function (2): signaling receptor activity (GO:0038023), protein binding (GO:0005515)
GO Cellular Component (3): obsolete extracellular space (GO:0005615), plasma membrane (GO:0005886), extracellular region (GO:0005576)
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| multicellular organismal process | 1 |
| negative regulation of myeloid leukocyte differentiation | 1 |
| osteoclast differentiation | 1 |
| regulation of osteoclast differentiation | 1 |
| tissue development | 1 |
| hematopoietic or lymphoid organ development | 1 |
| bone development | 1 |
| molecular transducer activity | 1 |
| binding | 1 |
| membrane | 1 |
| cell periphery | 1 |
| cellular anatomical structure | 1 |
Protein interactions and networks
STRING
1200 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| LRRC17 | FBXL13 | Q8NEE6 | 572 |
| LRRC17 | CCDC69 | A6NI79 | 455 |
| LRRC17 | SIX4 | Q9UIU6 | 453 |
| LRRC17 | E2F8 | A0AVK6 | 437 |
| LRRC17 | RENBP | P51606 | 430 |
| LRRC17 | PLEKHH2 | Q8IVE3 | 423 |
| LRRC17 | SESTD1 | Q86VW0 | 407 |
| LRRC17 | NFIB | O00712 | 406 |
| LRRC17 | GAS2L3 | Q86XJ1 | 404 |
| LRRC17 | MEIS1 | O00470 | 398 |
| LRRC17 | PBX2 | P40425 | 398 |
| LRRC17 | PBX1 | P40424 | 394 |
| LRRC17 | EBF2 | Q9HAK2 | 394 |
| LRRC17 | CDO1 | P78513 | 387 |
| LRRC17 | SATB2 | Q9UPW6 | 387 |
IntAct
4 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| P | psi-mi:“MI:0914”(association) | 0.350 | |
| LRRC17 | ZZEF1 | psi-mi:“MI:0914”(association) | 0.350 |
BioGRID (21): LRRC17 (Protein-RNA), C1QBP (Affinity Capture-MS), CNPY3 (Affinity Capture-MS), CNPY4 (Affinity Capture-MS), ARMCX3 (Affinity Capture-MS), TEFM (Affinity Capture-MS), ZZEF1 (Affinity Capture-MS), HECTD3 (Affinity Capture-MS), PRKCI (Affinity Capture-MS), RANBP6 (Affinity Capture-MS), KBTBD7 (Affinity Capture-MS), PRTN3 (Affinity Capture-MS), TMEM214 (Affinity Capture-MS), BCL7B (Affinity Capture-MS), MPO (Affinity Capture-MS)
ESM2 similar proteins: C0STK7, C3YZ59, O00206, O15455, O42235, O60938, O62702, O93233, P58727, Q0PV50, Q2V898, Q45R42, Q58A48, Q5BK65, Q5M7S9, Q5TJ59, Q62192, Q65YW8, Q65Z91, Q68Y56, Q6AXL3, Q6DF55, Q6R5N8, Q6R5P0, Q7Z2Q7, Q80X72, Q8BMT4, Q8BZT5, Q8C031, Q8N6Y2, Q8R5M3, Q8SPE8, Q8SPE9, Q965M2, Q99467, Q99MB1, Q99PH1, Q9CQ76, Q9CXD9, Q9DE66
Diamond homologs: O15335, O55226, O70210, O94933, O94991, Q27972, Q5RAC4, Q6RKD8, Q7M6Z0, Q7Z2Q7, Q80WD1, Q810B7, Q810B8, Q810B9, Q810C0, Q810C1, Q86UN3, Q8BGX3, Q8C110, Q8IW52, Q8N6Y2, Q8N967, Q96PX8, Q9H156, Q9H5Y7, Q9HBL6, Q9NZU1, B1H134, B1H234, Q5R6T0, Q70AK3, Q8BGT1, Q9CQ76, Q9CXD9, Q9NZU0, D3ZTV3, D4ABX8, E5DHB5, F1NUK7, F7D3V9
SIGNOR signaling
0 interactions.
Disease & clinical
Clinical variants and AI predictions
ClinVar
2 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 0 |
| Uncertain significance | 1 |
| Likely benign | 0 |
| Benign | 0 |
Top pathogenic / likely-pathogenic (0)
SpliceAI
1366 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 7:102913213:TGC:T | acceptor_gain | 1.0000 |
| 7:102913216:C:CC | acceptor_gain | 1.0000 |
| 7:102926372:ATCC:A | acceptor_loss | 1.0000 |
| 7:102926373:TC:T | acceptor_gain | 1.0000 |
| 7:102926373:TCCTG:T | acceptor_loss | 1.0000 |
| 7:102926374:CC:C | acceptor_gain | 1.0000 |
| 7:102926375:C:CC | acceptor_gain | 1.0000 |
| 7:102926376:T:C | acceptor_loss | 1.0000 |
| 7:102927069:CA:C | acceptor_gain | 1.0000 |
| 7:102939428:A:AG | acceptor_gain | 1.0000 |
| 7:102939429:G:GG | acceptor_gain | 1.0000 |
| 7:102939429:GA:G | acceptor_gain | 1.0000 |
| 7:102939429:GAGTT:G | acceptor_gain | 1.0000 |
| 7:102939581:TCCTG:T | donor_gain | 1.0000 |
| 7:102939582:CCTG:C | donor_gain | 1.0000 |
| 7:102939583:CTG:C | donor_gain | 1.0000 |
| 7:102939584:TG:T | donor_gain | 1.0000 |
| 7:102939585:GG:G | donor_gain | 1.0000 |
| 7:102939585:GGTA:G | donor_loss | 1.0000 |
| 7:102939586:G:GA | donor_loss | 1.0000 |
| 7:102939586:G:GG | donor_gain | 1.0000 |
| 7:102939587:TAAGT:T | donor_loss | 1.0000 |
| 7:102913211:AGTGC:A | acceptor_gain | 0.9900 |
| 7:102913212:GTGC:G | acceptor_gain | 0.9900 |
| 7:102913214:GC:G | acceptor_gain | 0.9900 |
| 7:102913215:CC:C | acceptor_gain | 0.9900 |
| 7:102913217:T:C | acceptor_loss | 0.9900 |
| 7:102926269:ATTAC:A | donor_loss | 0.9900 |
| 7:102926270:TTA:T | donor_loss | 0.9900 |
| 7:102926271:TA:T | donor_loss | 0.9900 |
AlphaMissense
2922 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 7:102934248:T:C | L112P | 1.000 |
| 7:102934314:T:C | L134P | 1.000 |
| 7:102944413:T:A | C378S | 1.000 |
| 7:102944414:G:C | C378S | 1.000 |
| 7:102934242:T:C | L110P | 0.999 |
| 7:102934257:A:T | N115I | 0.999 |
| 7:102934258:T:A | N115K | 0.999 |
| 7:102934258:T:G | N115K | 0.999 |
| 7:102934320:T:C | L136P | 0.999 |
| 7:102934329:A:T | N139I | 0.999 |
| 7:102934330:C:A | N139K | 0.999 |
| 7:102934330:C:G | N139K | 0.999 |
| 7:102934386:T:C | L158P | 0.999 |
| 7:102934406:T:A | W165R | 0.999 |
| 7:102934406:T:C | W165R | 0.999 |
| 7:102934487:T:A | C192S | 0.999 |
| 7:102934488:G:C | C192S | 0.999 |
| 7:102939553:T:C | L299P | 0.999 |
| 7:102944335:T:A | W352R | 0.999 |
| 7:102944335:T:C | W352R | 0.999 |
| 7:102944341:T:A | C354S | 0.999 |
| 7:102944341:T:C | C354R | 0.999 |
| 7:102944342:G:A | C354Y | 0.999 |
| 7:102944342:G:C | C354S | 0.999 |
| 7:102944413:T:C | C378R | 0.999 |
| 7:102934112:T:C | C67R | 0.998 |
| 7:102934185:A:T | N91I | 0.998 |
| 7:102934186:C:A | N91K | 0.998 |
| 7:102934186:C:G | N91K | 0.998 |
| 7:102934248:T:A | L112Q | 0.998 |
dbSNP variants (sampled 300 via entrez): RS1000007686 (7:102922871 A>G), RS1000178607 (7:102929267 C>A,T), RS1000196679 (7:102936358 T>C), RS1000360631 (7:102915900 A>G), RS1000376502 (7:102944038 T>C), RS1000412969 (7:102915737 A>C), RS1000478541 (7:102944476 G>A), RS1000518726 (7:102927272 A>C), RS1000609223 (7:102943931 TG>T), RS1000632351 (7:102928955 G>A), RS1000974464 (7:102927608 C>T), RS1001180616 (7:102923860 A>T), RS1001189341 (7:102936517 C>T), RS1001212399 (7:102942398 C>T), RS1001350935 (7:102917497 T>C)
Disease associations
OMIM: gene MIM:618749 | disease phenotypes:
GenCC curated gene-disease
Mondo (0):
Orphanet (0):
HPO phenotypes
0 total (0 of 0 shown, HPO-id order):
GWAS associations
1 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST006479_111 | Diverticular disease | 4.000000e-14 |
EFO canonical traits (1, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0009959 | diverticular disease |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
37 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Valproic Acid | increases expression, affects expression, decreases expression, affects cotreatment | 7 |
| trichostatin A | affects cotreatment, increases expression | 3 |
| Estradiol | affects cotreatment, decreases expression, increases expression | 3 |
| methylmercuric chloride | decreases expression, increases expression | 2 |
| sodium arsenite | decreases expression, increases expression | 2 |
| entinostat | increases expression, affects cotreatment | 2 |
| Panobinostat | affects cotreatment, increases expression | 2 |
| Benzo(a)pyrene | decreases expression, decreases methylation | 2 |
| Nickel | decreases expression | 2 |
| Progesterone | affects cotreatment, decreases expression | 2 |
| o,p’-DDT | decreases expression | 1 |
| boron nitride | decreases expression | 1 |
| ferrous chloride | decreases expression | 1 |
| 1-nitropyrene | decreases expression | 1 |
| beta-methylcholine | affects expression | 1 |
| phenethyl isothiocyanate | decreases expression | 1 |
| 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamide | affects cotreatment, increases expression | 1 |
| belinostat | increases expression | 1 |
| abrine | increases expression | 1 |
| dorsomorphin | affects cotreatment, increases expression | 1 |
| bisphenol S | decreases expression | 1 |
| (+)-JQ1 compound | decreases expression | 1 |
| bisphenol AF | decreases expression | 1 |
| Temozolomide | decreases expression | 1 |
| Ketoconazole | decreases expression | 1 |
| Lead | increases expression | 1 |
| Methotrexate | increases expression | 1 |
| Quercetin | affects expression | 1 |
| Silicon Dioxide | decreases expression | 1 |
| Smoke | decreases expression | 1 |
Clinical trials (associated diseases)
0 trials via MONDO — disease-level, not drug-specific.
Related Atlas pages
No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.