HS1BP3
gene geneOn this page
Also known as HS1-BP3FLJ14249
Summary
HS1BP3 (HCLS1 binding protein 3, HGNC:24979) is a protein-coding gene on chromosome 2p24.1, encoding HCLS1-binding protein 3 (Q53T59). May be a modulator of IL-2 signaling.
The protein encoded by this gene shares similarity with mouse Hs1bp3, an Hcls1/Hs1-interacting protein that may be involved in lymphocyte activation.
Source: NCBI Gene 64342 — RefSeq curated summary.
At a glance
- GWAS associations: 4
- Clinical variants (ClinVar): 91 total
- MANE Select transcript:
NM_022460
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:24979 |
| Approved symbol | HS1BP3 |
| Name | HCLS1 binding protein 3 |
| Location | 2p24.1 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | HS1-BP3, FLJ14249 |
| Ensembl gene | ENSG00000118960 |
| Ensembl biotype | protein_coding |
| OMIM | 609359 |
| Entrez | 64342 |
Gene structure
Transcript identifiers
Ensembl transcripts: 12 — 11 protein_coding, 1 nonsense_mediated_decay
ENST00000304031, ENST00000402541, ENST00000406618, ENST00000415264, ENST00000445102, ENST00000446825, ENST00000458740, ENST00000631166, ENST00000651498, ENST00000897119, ENST00000897120, ENST00000897121
RefSeq mRNA: 1 — MANE Select: NM_022460
NM_022460
CCDS: CCDS1700
Canonical transcript exons
ENST00000304031 — 7 exons
| Exon | Start | End |
|---|---|---|
| ENSE00000715860 | 20645340 | 20645505 |
| ENSE00001319210 | 20617818 | 20619245 |
| ENSE00001830605 | 20651032 | 20651098 |
| ENSE00003478169 | 20624732 | 20624892 |
| ENSE00003486168 | 20623896 | 20624031 |
| ENSE00003544902 | 20638436 | 20638652 |
| ENSE00003665602 | 20640973 | 20641180 |
Expression profiles
Bgee: expression breadth ubiquitous, 241 present calls, max score 91.96.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 15.5896 / max 85.6573, expressed in 1790 samples.
FANTOM5 promoters (2 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 27145 | 15.5638 | 1790 |
| 27146 | 0.0258 | 9 |
Top tissues by expression
273 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| lower esophagus muscularis layer | UBERON:0035833 | 91.96 | gold quality |
| lower esophagus | UBERON:0013473 | 91.93 | gold quality |
| esophagogastric junction muscularis propria | UBERON:0035841 | 91.78 | gold quality |
| popliteal artery | UBERON:0002250 | 91.08 | gold quality |
| tibial artery | UBERON:0007610 | 91.07 | gold quality |
| aorta | UBERON:0000947 | 90.84 | gold quality |
| ascending aorta | UBERON:0001496 | 90.62 | gold quality |
| thoracic aorta | UBERON:0001515 | 90.56 | gold quality |
| mucosa of stomach | UBERON:0001199 | 90.27 | gold quality |
| muscle layer of sigmoid colon | UBERON:0035805 | 90.24 | gold quality |
| right adrenal gland | UBERON:0001233 | 90.23 | gold quality |
| right adrenal gland cortex | UBERON:0035827 | 90.05 | gold quality |
| left adrenal gland cortex | UBERON:0035825 | 89.69 | gold quality |
| left adrenal gland | UBERON:0001234 | 89.49 | gold quality |
| adrenal cortex | UBERON:0001235 | 89.41 | gold quality |
| descending thoracic aorta | UBERON:0002345 | 89.38 | gold quality |
| monocyte | CL:0000576 | 89.17 | gold quality |
| mononuclear cell | CL:0000842 | 88.88 | gold quality |
| leukocyte | CL:0000738 | 88.73 | gold quality |
| left coronary artery | UBERON:0001626 | 88.73 | gold quality |
| adrenal gland | UBERON:0002369 | 88.67 | gold quality |
| coronary artery | UBERON:0001621 | 88.61 | gold quality |
| apex of heart | UBERON:0002098 | 88.24 | gold quality |
| saphenous vein | UBERON:0007318 | 88.02 | gold quality |
| right coronary artery | UBERON:0001625 | 87.99 | gold quality |
| right lobe of liver | UBERON:0001114 | 87.71 | gold quality |
| adult mammalian kidney | UBERON:0000082 | 87.67 | gold quality |
| granulocyte | CL:0000094 | 87.56 | gold quality |
| cardia of stomach | UBERON:0001162 | 87.55 | silver quality |
| right atrium auricular region | UBERON:0006631 | 87.36 | gold quality |
Single-cell (SCXA)
Detected in 2 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | yes | 4.81 |
| E-MTAB-6379 | no | 445.34 |
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): BRD4, CTCF, JMJD6
miRNA regulators (miRDB)
57 targeting HS1BP3, 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-4747-5P | 100.00 | 67.90 | 2681 |
| HSA-MIR-5196-5P | 100.00 | 67.98 | 2761 |
| HSA-MIR-4725-3P | 99.96 | 69.53 | 2520 |
| HSA-MIR-6780B-5P | 99.96 | 69.60 | 2562 |
| HSA-MIR-6825-5P | 99.96 | 69.81 | 3431 |
| HSA-MIR-9983-3P | 99.94 | 71.48 | 3631 |
| HSA-MIR-589-3P | 99.91 | 69.62 | 2088 |
| HSA-MIR-4493 | 99.90 | 66.48 | 977 |
| HSA-MIR-6783-3P | 99.89 | 67.92 | 2059 |
| HSA-MIR-1343-3P | 99.89 | 66.78 | 1815 |
| HSA-MIR-124-3P | 99.89 | 73.74 | 3043 |
| HSA-MIR-506-3P | 99.89 | 73.55 | 3057 |
| HSA-MIR-129-5P | 99.88 | 70.26 | 3273 |
| HSA-MIR-4271 | 99.88 | 68.32 | 2244 |
| HSA-MIR-4492 | 99.87 | 68.25 | 3611 |
| HSA-MIR-4779 | 99.86 | 66.50 | 1583 |
| HSA-MIR-4420 | 99.82 | 70.08 | 1624 |
| HSA-MIR-181B-2-3P | 99.81 | 70.06 | 1646 |
| HSA-MIR-181B-3P | 99.81 | 70.06 | 1646 |
| HSA-MIR-6739-5P | 99.80 | 67.87 | 2806 |
| HSA-MIR-6885-3P | 99.75 | 70.36 | 3187 |
| HSA-MIR-6733-5P | 99.74 | 67.94 | 2759 |
| HSA-MIR-6752-3P | 99.72 | 66.71 | 1587 |
| HSA-MIR-378G | 99.71 | 64.90 | 1106 |
| HSA-MIR-4516 | 99.61 | 67.78 | 3390 |
| HSA-MIR-4505 | 99.27 | 67.81 | 2678 |
| HSA-MIR-149-5P | 99.25 | 67.16 | 1315 |
| HSA-MIR-5787 | 99.22 | 67.86 | 2628 |
| HSA-MIR-6791-5P | 99.16 | 65.92 | 1844 |
| HSA-MIR-4292 | 99.16 | 65.57 | 1767 |
Literature-anchored findings (GeneRIF, showing 5)
- The 828C–>G mutation causes a substitution of a glycine for an alanine residue in the HS1-BP3 protein. It was found in 2 unrelated patients with familial essential tremor. (PMID:15699368)
- HS1PB3 protein is mutated in essential tremor combined with Parkinson disease. (PMID:16116142)
- Results do not support a role for these DRD3 and HS1BP3 variants in PD. (PMID:19524641)
- Results suggest that HS1BP3 regulates apoptosis via HS1 and stimulates AP-1-mediated transcription. (PMID:21699750)
- HS1BP3 is localized to ATG16L1- and ATG9-positive autophagosome precursors and we show that HS1BP3 binds phosphatidic acid (PA) through its PX domain. Furthermore, we find the total PA content of cells to be significantly upregulated in the absence of HS1BP3. (PMID:28004827)
Cross-species orthologs
3 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | hs1bp3 | ENSDARG00000034222 |
| mus_musculus | Hs1bp3 | ENSMUSG00000020605 |
| rattus_norvegicus | Hs1bp3 | ENSRNOG00000006062 |
Protein
Protein identifiers
HCLS1-binding protein 3 — Q53T59 (reviewed: Q53T59)
Alternative names: HS1-binding protein 3
All UniProt accessions (9): A0A0D9SFN1, A0A494C0K6, B5MC96, Q53T59, F6TR53, F8WDN8, H7BZ19, H7BZZ1, H7C0Y9
UniProt curated annotations — full annotation on UniProt →
Function. May be a modulator of IL-2 signaling.
Subunit / interactions. Binds HCLS1. Interacts with the SH3 domain of HCLS1 in vitro.
RefSeq proteins (1): NP_071905* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR001683 | PX_dom | Domain |
| IPR036871 | PX_dom_sf | Homologous_superfamily |
| IPR037901 | HS1BP3_PX | Domain |
| IPR039701 | HS1BP3 | Family |
Pfam: PF00787
UniProt features (18 total): modified residue 6, sequence variant 4, region of interest 3, compositionally biased region 3, chain 1, domain 1
Structure
Experimental structures (PDB)
0 structures.
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q53T59-F1 | 67.69 | 0.33 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Post-translational modifications (6): 139, 194, 249, 337, 1, 3
Function
Pathways and Gene Ontology
Reactome pathways
0 pathways
MSigDB gene sets: 123 (showing top):
GSE45365_CTRL_VS_MCMV_INFECTION_NK_CELL_UP, MODULE_255, MODULE_317, GTGCCTT_MIR506, BLALOCK_ALZHEIMERS_DISEASE_UP, HU_GENOTOXIN_ACTION_DIRECT_VS_INDIRECT_24HR, GRYDER_PAX3FOXO1_ENHANCERS_IN_TADS, TGGAAA_NFAT_Q4_01, GRYDER_PAX3FOXO1_TOP_ENHANCERS, MODULE_69, BOYLAN_MULTIPLE_MYELOMA_C_CLUSTER_DN, GOMF_PHOSPHATIDYLINOSITOL_BINDING, GOMF_LIPID_BINDING, GOMF_PHOSPHOLIPID_BINDING, LIANG_HEMATOPOIESIS_STEM_CELL_NUMBER_SMALL_VS_HUGE_DN
GO Biological Process (1): regulation of apoptotic process (GO:0042981)
GO Molecular Function (2): phosphatidylinositol binding (GO:0035091), protein binding (GO:0005515)
GO Cellular Component (2): mitochondrion (GO:0005739), endoplasmic reticulum (GO:0005783)
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| cytoplasm | 2 |
| intracellular membrane-bounded organelle | 2 |
| apoptotic process | 1 |
| regulation of programmed cell death | 1 |
| anion binding | 1 |
| binding | 1 |
| endomembrane system | 1 |
Protein interactions and networks
STRING
608 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| HS1BP3 | CHP1 | Q99653 | 763 |
| HS1BP3 | HCLS1 | P14317 | 648 |
| HS1BP3 | LDAH | Q9H6V9 | 615 |
| HS1BP3 | TOR2A | Q5JU69 | 551 |
| HS1BP3 | REEP4 | Q9H6H4 | 501 |
| HS1BP3 | SNX10 | Q9Y5X0 | 462 |
| HS1BP3 | SNX21 | Q969T3 | 459 |
| HS1BP3 | LINGO4 | Q6UY18 | 452 |
| HS1BP3 | DRD3 | P35462 | 447 |
| HS1BP3 | SNX18 | Q96RF0 | 444 |
| HS1BP3 | GDF7 | Q7Z4P5 | 442 |
| HS1BP3 | SNX20 | Q7Z614 | 441 |
| HS1BP3 | LINGO2 | Q7L985 | 417 |
| HS1BP3 | NKAIN3 | Q8N8D7 | 402 |
| HS1BP3 | LINGO1 | Q96FE5 | 396 |
IntAct
30 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| HS1BP3 | FGFR3 | psi-mi:“MI:0915”(physical association) | 0.560 |
| HS1BP3 | GSN | psi-mi:“MI:0915”(physical association) | 0.560 |
| HS1BP3 | PMP22 | psi-mi:“MI:0915”(physical association) | 0.560 |
| HS1BP3 | SPRED1 | psi-mi:“MI:0915”(physical association) | 0.560 |
| TMED3 | HS1BP3 | psi-mi:“MI:0914”(association) | 0.530 |
| VGLL4 | YAP1 | psi-mi:“MI:0914”(association) | 0.530 |
| TCP10L | RNF40 | psi-mi:“MI:0914”(association) | 0.350 |
| ANTXR2 | ELOA | psi-mi:“MI:0914”(association) | 0.350 |
| HS1BP3 | PDXDC1 | psi-mi:“MI:0914”(association) | 0.350 |
| HS1BP3 | TAF5L | psi-mi:“MI:0914”(association) | 0.350 |
| RWDD2B | CMPK1 | psi-mi:“MI:0914”(association) | 0.350 |
| ANTXR2 | HS1BP3 | psi-mi:“MI:0914”(association) | 0.350 |
| HS1BP3 | MPO | psi-mi:“MI:0914”(association) | 0.350 |
| DDX28 | UBA6 | psi-mi:“MI:0914”(association) | 0.350 |
| KIAA1191 | UBA6 | psi-mi:“MI:0914”(association) | 0.350 |
| MRPL49 | UBA6 | psi-mi:“MI:0914”(association) | 0.350 |
| SNRNP27 | BPNT1 | psi-mi:“MI:0914”(association) | 0.350 |
| VENTX | UBA6 | psi-mi:“MI:0914”(association) | 0.350 |
| CEP170 | ERVK3-1 | psi-mi:“MI:2364”(proximity) | 0.270 |
BioGRID (57): HS1BP3 (Two-hybrid), HS1BP3 (Affinity Capture-MS), HS1BP3 (Affinity Capture-MS), NAA38 (Co-fractionation), HS1BP3 (Proximity Label-MS), ABTB2 (Affinity Capture-MS), PDXDC1 (Affinity Capture-MS), HS1BP3 (Affinity Capture-MS), RAD50 (Affinity Capture-MS), HS1BP3 (Affinity Capture-MS), HS1BP3 (Affinity Capture-MS), HS1BP3 (Affinity Capture-MS), HS1BP3 (Proximity Label-MS), HS1BP3 (Affinity Capture-MS), C20orf194 (Affinity Capture-MS)
ESM2 similar proteins: A2AKB4, A4IFK0, A5PMU4, O54824, O62666, O62674, O62675, O62676, O62677, O62678, O75128, P49796, P59672, P78524, P97432, Q0V8R5, Q14005, Q14596, Q32LQ1, Q3B7M3, Q3TC93, Q501R9, Q53GL0, Q53T59, Q5BJM5, Q5F3C8, Q5JV73, Q5NBX1, Q5RC94, Q5SUE8, Q5SYB0, Q5T7N3, Q5VT97, Q6P9J5, Q80TI1, Q80UZ0, Q80XA6, Q86XL3, Q8C4S8, Q8K124
Diamond homologs: Q3TC93, Q53T59
SIGNOR signaling
0 interactions.
Disease & clinical
Clinical variants and AI predictions
ClinVar
91 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 0 |
| Uncertain significance | 66 |
| Likely benign | 8 |
| Benign | 2 |
Top pathogenic / likely-pathogenic (0)
SpliceAI
1377 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 2:20624032:C:CC | acceptor_gain | 1.0000 |
| 2:20624726:A:AC | donor_gain | 1.0000 |
| 2:20624727:C:CC | donor_gain | 1.0000 |
| 2:20624727:CTT:C | donor_loss | 1.0000 |
| 2:20624729:TA:T | donor_loss | 1.0000 |
| 2:20624730:A:AC | donor_gain | 1.0000 |
| 2:20624730:AC:A | donor_loss | 1.0000 |
| 2:20624730:ACGGT:A | donor_gain | 1.0000 |
| 2:20624731:C:CA | donor_gain | 1.0000 |
| 2:20624731:CG:C | donor_gain | 1.0000 |
| 2:20624731:CGG:C | donor_gain | 1.0000 |
| 2:20624731:CGGT:C | donor_gain | 1.0000 |
| 2:20624731:CGGTC:C | donor_gain | 1.0000 |
| 2:20624749:T:TA | donor_gain | 1.0000 |
| 2:20624888:TGGAG:T | acceptor_gain | 1.0000 |
| 2:20624889:GGAG:G | acceptor_gain | 1.0000 |
| 2:20624890:GAG:G | acceptor_gain | 1.0000 |
| 2:20624891:AG:A | acceptor_gain | 1.0000 |
| 2:20624893:C:A | acceptor_loss | 1.0000 |
| 2:20624893:C:CC | acceptor_gain | 1.0000 |
| 2:20624902:C:CT | acceptor_gain | 1.0000 |
| 2:20638463:T:TA | donor_gain | 1.0000 |
| 2:20638466:T:TA | donor_gain | 1.0000 |
| 2:20638469:T:TA | donor_gain | 1.0000 |
| 2:20638651:ACC:A | acceptor_loss | 1.0000 |
| 2:20638652:CCTG:C | acceptor_loss | 1.0000 |
| 2:20638653:C:CG | acceptor_loss | 1.0000 |
| 2:20638654:T:C | acceptor_loss | 1.0000 |
| 2:20641014:T:TA | donor_gain | 1.0000 |
| 2:20645334:GCTCA:G | donor_loss | 1.0000 |
AlphaMissense
2563 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 2:20645350:A:T | V63D | 0.997 |
| 2:20645417:A:G | Y41H | 0.995 |
| 2:20645473:A:G | L22P | 0.995 |
| 2:20645344:A:G | F65S | 0.994 |
| 2:20645379:C:A | K53N | 0.994 |
| 2:20645379:C:G | K53N | 0.994 |
| 2:20645417:A:C | Y41D | 0.993 |
| 2:20645416:T:G | Y41S | 0.992 |
| 2:20640978:A:G | F134S | 0.990 |
| 2:20641044:A:G | F112S | 0.990 |
| 2:20641055:C:A | R108S | 0.990 |
| 2:20641055:C:G | R108S | 0.990 |
| 2:20641080:A:T | V100D | 0.990 |
| 2:20645383:A:G | F52S | 0.990 |
| 2:20645382:G:C | F52L | 0.989 |
| 2:20645382:G:T | F52L | 0.989 |
| 2:20645384:A:G | F52L | 0.989 |
| 2:20641083:A:G | F99S | 0.987 |
| 2:20641168:A:C | Y71D | 0.986 |
| 2:20645381:T:C | K53E | 0.986 |
| 2:20645473:A:C | L22R | 0.986 |
| 2:20645473:A:T | L22Q | 0.986 |
| 2:20641023:A:T | V119D | 0.985 |
| 2:20645467:A:T | V24E | 0.985 |
| 2:20645404:A:T | V45E | 0.984 |
| 2:20641172:T:A | K69N | 0.982 |
| 2:20641172:T:G | K69N | 0.982 |
| 2:20645343:G:C | F65L | 0.982 |
| 2:20645343:G:T | F65L | 0.982 |
| 2:20645345:A:G | F65L | 0.982 |
dbSNP variants (sampled 300 via entrez): RS1000063753 (2:20568998 G>A), RS1000104558 (2:20587387 C>G,T), RS1000181905 (2:20594390 C>T), RS1000197065 (2:20564072 T>C), RS1000209363 (2:20637393 C>A), RS1000234333 (2:20605245 G>T), RS1000259304 (2:20589406 T>C), RS1000260295 (2:20555049 C>T), RS1000334309 (2:20554441 G>A), RS1000338632 (2:20626725 C>T), RS1000360736 (2:20631297 T>C), RS1000364757 (2:20650857 G>A,C), RS1000386129 (2:20584490 C>T), RS1000405570 (2:20642190 T>C), RS1000438775 (2:20584180 G>A,C)
Disease associations
OMIM: gene MIM:609359 | disease phenotypes:
GenCC curated gene-disease
Mondo (0):
Orphanet (0):
HPO phenotypes
0 total (0 of 0 shown, HPO-id order):
GWAS associations
4 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST006004_10 | Low density lipoprotein cholesterol levels | 6.000000e-59 |
| GCST006034_30 | Total cholesterol levels | 2.000000e-39 |
| GCST006479_42 | Diverticular disease | 4.000000e-06 |
| GCST008155_46 | Waist-hip ratio | 4.000000e-06 |
EFO canonical traits (4, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0004611 | low density lipoprotein cholesterol measurement |
| EFO:0004574 | total cholesterol measurement |
| EFO:0009959 | diverticular disease |
| EFO:0004343 | waist-hip ratio |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
33 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Valproic Acid | affects expression, increases expression | 3 |
| sodium arsenite | decreases expression, increases expression | 2 |
| aristolochic acid I | increases expression | 1 |
| FR900359 | increases phosphorylation | 1 |
| triphenyl phosphate | affects expression | 1 |
| bisphenol A | increases expression | 1 |
| zinc chromate | increases abundance, increases expression | 1 |
| beta-methylcholine | affects expression | 1 |
| chromium hexavalent ion | increases expression, increases abundance | 1 |
| perfluorooctane sulfonic acid | increases expression | 1 |
| CGP 52608 | affects binding, increases reaction | 1 |
| entinostat | increases expression | 1 |
| jinfukang | increases expression | 1 |
| 4-(4-((5-(4,5-dimethyl-2-nitrophenyl)-2-furanyl)methylene)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzoic acid | decreases expression | 1 |
| Temozolomide | decreases expression | 1 |
| Sunitinib | increases expression | 1 |
| Benzo(a)pyrene | increases methylation | 1 |
| Cadmium | decreases expression, increases abundance | 1 |
| Caffeine | decreases phosphorylation | 1 |
| Cisplatin | increases expression | 1 |
| Ivermectin | decreases expression | 1 |
| Mercury | decreases expression | 1 |
| Methotrexate | decreases expression | 1 |
| Quercetin | increases expression | 1 |
| Rotenone | decreases expression | 1 |
| Silicon Dioxide | increases expression | 1 |
| Smoke | decreases expression | 1 |
| Testosterone | decreases expression | 1 |
| Tetrachlorodibenzodioxin | affects expression | 1 |
| Aflatoxin B1 | increases methylation | 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.