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ONTOLOGY REPORT - ANNOTATIONS


Term:terminal bouton
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Accession:GO:0043195 term browser browse the term
Definition:Terminal inflated portion of the axon, containing the specialized apparatus necessary to release neurotransmitters. The axon terminus is considered to be the whole region of thickening and the terminal bouton is a specialized region of it.
Synonyms:exact_synonym: bouton;   presynaptic bouton;   synaptic bouton;   terminal button
 xref: NIF_Subcellular:sao187426937



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terminal bouton term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G AAK1 AP2 associated kinase 1 located_in ISO PMID:11877461 UniProt PMID:11877461 RGD:8553925 NCBI chr2A:69,506,651...69,686,765
Ensembl chr2A:70,638,470...70,804,579
JBrowse link
G ACHE acetylcholinesterase (Yt blood group) ISO RGD PMID:4104277 RGD:11557982 (All species) (All species) NCBI chr 7:92,915,065...92,922,079
Ensembl chr 7:106,311,944...106,318,184
JBrowse link
G ADCYAP1 adenylate cyclase activating polypeptide 1 ISO buttons in the medial parvocellular subdivision of rat PVN (hypothalamus), apposed to CRH neurons RGD PMID:9792613 RGD:2312463 NCBI chr18:13,414,618...13,421,668
Ensembl chr18:15,713,479...15,717,749
JBrowse link
G ADORA1 adenosine A1 receptor ISO RGD PMID:16952160 RGD:1625217 NCBI chr 1:178,728,751...178,769,066
Ensembl chr 1:183,023,466...183,063,760
JBrowse link
G AP1S1 adaptor related protein complex 1 subunit sigma 1 located_in ISO (PMID:20203623) MGI PMID:20203623 NCBI chr 7:93,294,826...93,301,202
Ensembl chr 7:106,536,452...106,543,316
JBrowse link
G AP3D1 adaptor related protein complex 3 subunit delta 1 located_in IEA Ensembl
TreeGrafter
GO_REF:0000107 GO_REF:0000118 NCBI chr19:1,110,419...1,161,826
Ensembl chr19:2,085,540...2,137,593
JBrowse link
G BDNF brain derived neurotrophic factor ISO RGD PMID:16626872 RGD:8655644 NCBI chr11:27,618,322...27,687,661
Ensembl chr11:27,520,312...27,589,239
JBrowse link
G BLVRB biliverdin reductase B ISO RGD PMID:11056461 RGD:11553940 (All species) (All species) NCBI chr19:37,496,344...37,516,127
Ensembl chr19:46,007,321...46,025,120
JBrowse link
G CAD carbamoyl-phosphate synthetase 2, aspartate transcarbamylase, and dihydroorotase ISO RGD PMID:1673139 RGD:5132585 NCBI chr2A:27,218,699...27,245,156
Ensembl chr2A:27,306,527...27,332,804
JBrowse link
G CALB1 calbindin 1 located_in ISO
IEA
RGD
TreeGrafter
PMID:7559179 GO_REF:0000118 RGD:11556241 (All species) (All species) NCBI chr 8:86,747,702...86,771,995
Ensembl chr 8:88,699,532...88,723,814
JBrowse link
G CALB2 calbindin 2 located_in IEA TreeGrafter GO_REF:0000118 NCBI chr16:53,620,317...53,653,372
Ensembl chr16:71,195,770...71,227,937
JBrowse link
G CALCA calcitonin related polypeptide alpha located_in IEA Ensembl GO_REF:0000107 NCBI chr11:15,055,897...15,061,539
Ensembl chr11:14,745,588...14,751,267
JBrowse link
G CCK cholecystokinin ISO nonpyramidal neurons in the basolateral amygdalar complex without colchicine treatment RGD PMID:12763251 RGD:1626094 NCBI chr 3:42,168,012...42,176,358
Ensembl chr 3:42,431,022...42,439,396
JBrowse link
G CCKAR cholecystokinin A receptor ISO RGD PMID:3408996 RGD:2313271 NCBI chr 4:20,881,340...20,890,986
Ensembl chr 4:26,157,702...26,166,773
JBrowse link
G CNGA1 cyclic nucleotide gated channel subunit alpha 1 ISO RGD PMID:21809342 RGD:6902901 NCBI chr 4:74,196,877...74,213,563
Ensembl chr 4:84,910,653...84,945,248
JBrowse link
G CNGB1 cyclic nucleotide gated channel subunit beta 1 ISO RGD PMID:21809342 RGD:6902901 NCBI chr16:38,160,056...38,249,474
Ensembl chr16:57,292,093...57,375,460
JBrowse link
G CPLX1 complexin 1 located_in IEA TreeGrafter GO_REF:0000118 NCBI chr 4:889,037...930,046
Ensembl chr 4:819,833...858,953
JBrowse link
G CPLX2 complexin 2 located_in IEA TreeGrafter GO_REF:0000118 NCBI chr 5:171,144,671...171,233,028
Ensembl chr 5:178,115,947...178,128,595
JBrowse link
G CPLX3 complexin 3 located_in IEA TreeGrafter GO_REF:0000118 NCBI chr15:53,769,138...53,774,330
Ensembl chr15:73,386,826...73,391,991
JBrowse link
G CPLX4 complexin 4 located_in IEA TreeGrafter GO_REF:0000118 NCBI chr18:52,691,095...52,713,697
Ensembl chr18:55,998,958...56,040,108
JBrowse link
G CYFIP1 cytoplasmic FMR1 interacting protein 1 ISO RGD PMID:26843638 RGD:11342679 Ensembl chr15:20,462,811...20,573,684 JBrowse link
G CYP19A1 cytochrome P450 family 19 subfamily A member 1 ISO RGD PMID:20926671 RGD:4890044 NCBI chr15:30,152,924...30,282,854
Ensembl chr15:48,486,688...48,521,554
JBrowse link
G DBH dopamine beta-hydroxylase ISO RGD PMID:19651110 RGD:5129482 NCBI chr 9:104,761,504...104,784,445
Ensembl chr 9:133,371,821...133,393,697
JBrowse link
G DPYSL2 dihydropyrimidinase like 2 located_in ISO RGD PMID:19755421 RGD:2316240 NCBI chr 8:25,786,950...25,927,782
Ensembl chr 8:22,693,863...22,834,080
JBrowse link
G DRD4 dopamine receptor D4 ISO MMO:0000663 RGD PMID:10819901 PMID:11902112 RGD:1625058 RGD:728755 NCBI chr11:640,401...646,775 JBrowse link
G ERC2 ELKS/RAB6-interacting/CAST family member 2 ISO RGD PMID:12163476 RGD:1299401 NCBI chr 3:55,438,875...56,417,072
Ensembl chr 3:56,836,941...57,599,248
JBrowse link
G ESR1 estrogen receptor 1 ISO RGD PMID:17314305 RGD:1601103 NCBI chr 6:149,507,599...149,918,523
Ensembl chr 6:154,317,002...154,631,551
JBrowse link
G FMR1 fragile X messenger ribonucleoprotein 1 ISO RGD PMID:15028757 RGD:1300188 NCBI chr  X:136,937,889...136,976,828
Ensembl chr  X:147,365,748...147,405,321
JBrowse link
G GABRB3 gamma-aminobutyric acid type A receptor subunit beta3 ISO RGD PMID:12812758 RGD:1601270 NCBI chr15:3,129,481...3,357,495
Ensembl chr15:23,981,359...24,058,357
JBrowse link
G GHRH growth hormone releasing hormone located_in IEA Ensembl
TreeGrafter
GO_REF:0000107 GO_REF:0000118 NCBI chr20:33,573,001...33,583,699
Ensembl chr20:34,687,587...34,693,240
JBrowse link
G GRIA2 glutamate ionotropic receptor AMPA type subunit 2 ISO RGD PMID:15844209 RGD:1642495 NCBI chr 4:149,566,563...149,712,135
Ensembl chr 4:161,380,933...161,524,376
JBrowse link
G GRIA3 glutamate ionotropic receptor AMPA type subunit 3 ISO RGD PMID:15844209 RGD:1642495 NCBI chr  X:112,380,229...112,687,740
Ensembl chr  X:122,562,330...122,870,130
JBrowse link
G GRIA4 glutamate ionotropic receptor AMPA type subunit 4 ISO RGD PMID:15844209 RGD:1642495 NCBI chr11:100,498,632...100,873,764
Ensembl chr11:103,983,862...104,355,280
JBrowse link
G GRIK1 glutamate ionotropic receptor kainate type subunit 1 ISO RGD PMID:15844209 PMID:16360275 RGD:1642473 RGD:1642495 NCBI chr21:15,976,931...16,357,578
Ensembl chr21:29,364,269...29,743,379
JBrowse link
G GRIK2 glutamate ionotropic receptor kainate type subunit 2 ISO RGD PMID:15844209 RGD:1642495 NCBI chr 6:98,720,430...99,903,582
Ensembl chr 6:103,334,707...103,783,092
JBrowse link
G GRIK3 glutamate ionotropic receptor kainate type subunit 3 ISO RGD PMID:15844209 RGD:1642495 NCBI chr 1:36,060,594...36,312,781
Ensembl chr 1:37,415,254...37,651,705
JBrowse link
G GRIK4 glutamate ionotropic receptor kainate type subunit 4 ISO RGD PMID:15844209 PMID:16360275 RGD:1642473 RGD:1642495 NCBI chr11:115,348,836...115,827,873
Ensembl chr11:119,564,412...119,750,000
JBrowse link
G GRIK5 glutamate ionotropic receptor kainate type subunit 5 ISO RGD PMID:15844209 PMID:16360275 RGD:1642473 RGD:1642495 NCBI chr19:38,886,108...38,956,938
Ensembl chr19:47,389,804...47,544,604
JBrowse link
G GRIN1 glutamate ionotropic receptor NMDA type subunit 1 ISO RGD PMID:19666514 RGD:2325961 NCBI chr 9:108,198,350...108,228,887
Ensembl chr 9:137,168,722...137,197,382
JBrowse link
G GRIN2A glutamate ionotropic receptor NMDA type subunit 2A ISO RGD PMID:19666514 RGD:2325961 NCBI chr16:8,682,169...9,105,581
Ensembl chr16:9,919,143...10,336,167
JBrowse link
G GRIN2B glutamate ionotropic receptor NMDA type subunit 2B ISO RGD PMID:19666514 RGD:2325961 NCBI chr12:13,543,104...13,987,437
Ensembl chr12:13,969,387...14,388,799
JBrowse link
G GRIP1 glutamate receptor interacting protein 1 ISO MMO:0000110 RGD PMID:15226318 PMID:26109571 RGD:152995501 RGD:152995513 NCBI chr12:21,841,611...22,562,418
Ensembl chr12:22,744,177...23,069,480
JBrowse link
G GRM4 glutamate metabotropic receptor 4 located_in ISO PMID:11906782 UniProt PMID:11906782 RGD:8554275 NCBI chr 6:33,592,030...33,718,712
Ensembl chr 6:34,696,058...34,830,868
JBrowse link
G GRM7 glutamate metabotropic receptor 7 ISO RGD PMID:12823458 RGD:2289008 NCBI chr 3:6,811,005...7,691,344
Ensembl chr 3:6,907,180...7,933,536
JBrowse link
G HCN4 hyperpolarization activated cyclic nucleotide gated potassium channel 4 ISO RGD PMID:12786975 RGD:1299239 NCBI chr15:52,231,906...52,285,220
Ensembl chr15:70,997,020...71,042,285
JBrowse link
G HSPA8 heat shock protein family A (Hsp70) member 8 located_in ISO
IEA
RGD
TreeGrafter
PMID:9878698 GO_REF:0000118 RGD:10059325 NCBI chr11:117,890,545...117,895,262
Ensembl chr11:121,809,800...121,815,773
JBrowse link
G ILK integrin linked kinase ISO localized to the ends of axons but not dendrites in polarized neurons RGD PMID:17490631 RGD:2301744 NCBI chr11:6,735,735...6,742,922
Ensembl chr11:6,418,717...6,425,788
JBrowse link
G KCNC2 potassium voltage-gated channel subfamily C member 2 ISO RGD PMID:15488478 RGD:9685742 NCBI chr12:72,566,924...72,736,270 JBrowse link
G KCNMA1 potassium calcium-activated channel subfamily M alpha 1 located_in ISO (PMID:15328414) MGI PMID:15328414 NCBI chr10:73,391,297...74,158,488
Ensembl chr10:76,062,047...76,820,644
JBrowse link
G L1CAM L1 cell adhesion molecule located_in ISO (PMID:16537644) MGI PMID:16537644 NCBI chr  X:143,412,303...143,437,090
Ensembl chr  X:153,298,690...153,324,228
JBrowse link
G LOC100968349 heat shock cognate 71 kDa protein-like located_in IEA TreeGrafter GO_REF:0000118 NCBI chr13:84,809,840...84,812,136 JBrowse link
G MSR1 macrophage scavenger receptor 1 located_in IEA TreeGrafter GO_REF:0000118 NCBI chr 8:15,335,795...15,421,472
Ensembl chr 8:12,088,873...12,175,927
JBrowse link
G MYLK2 myosin light chain kinase 2 ISO RGD PMID:16515842 RGD:1600505 NCBI chr20:28,113,024...28,128,142
Ensembl chr20:29,243,391...29,258,508
JBrowse link
G NAPA NSF attachment protein alpha located_in IEA TreeGrafter GO_REF:0000118 NCBI chr19:44,479,871...44,507,315
Ensembl chr19:53,135,166...53,162,757
JBrowse link
G NAPB NSF attachment protein beta located_in IEA TreeGrafter GO_REF:0000118 NCBI chr20:23,316,153...23,363,142
Ensembl chr20:23,667,469...23,713,935
JBrowse link
G NMU neuromedin U located_in ISO
IEA
RGD
TreeGrafter
PMID:15297576 GO_REF:0000118 RGD:1642123 NCBI chr 4:68,299,538...68,340,680
Ensembl chr 4:74,867,364...74,904,965
JBrowse link
G NPY neuropeptide Y ISO RGD PMID:21344400 RGD:10448936 NCBI chr 7:24,963,056...24,970,803
Ensembl chr 7:24,568,041...24,574,657
JBrowse link
G NTRK2 neurotrophic receptor tyrosine kinase 2 located_in IEA Ensembl GO_REF:0000107 NCBI chr 9:39,663,986...40,208,770
Ensembl chr 9:84,021,837...84,372,678
JBrowse link
G NTSR1 neurotensin receptor 1 ISO RGD PMID:10818259 RGD:9743847 NCBI chr20:59,100,110...59,151,563
Ensembl chr20:60,392,736...60,446,056
JBrowse link
G OPHN1 oligophrenin 1 located_in IEA Ensembl
TreeGrafter
GO_REF:0000107 GO_REF:0000118 NCBI chr  X:57,288,297...57,674,685
Ensembl chr  X:67,359,364...67,739,114
JBrowse link
G OPN1SW opsin 1, short wave sensitive ISO RGD PMID:20209167 RGD:6893562 NCBI chr 7:120,724,363...120,727,649
Ensembl chr 7:133,246,131...133,251,464
JBrowse link
G OXT oxytocin/neurophysin I prepropeptide ISO RGD PMID:18987209 RGD:2303962 NCBI chr20:3,157,246...3,159,013 JBrowse link
G P2RX2 purinergic receptor P2X 2 ISO RGD PMID:10974431 RGD:1642670 NCBI chr12:129,969,793...129,974,399 JBrowse link
G P2RX3 purinergic receptor P2X 3 ISO RGD PMID:9721930 PMID:16018975 RGD:1642677 RGD:1642692 NCBI chr11:52,579,190...52,614,329
Ensembl chr 3:160,070,875...160,106,120
JBrowse link
G P2RX4 purinergic receptor P2X 4 ISO RGD PMID:15476696 RGD:1642694 NCBI chr12:118,807,961...118,832,267
Ensembl chr12:122,178,672...122,202,959
JBrowse link
G P2RX7 purinergic receptor P2X 7 ISO RGD PMID:16018975 RGD:1642692 NCBI chr12:118,731,761...118,786,039
Ensembl chr12:122,102,888...122,154,068
JBrowse link
G PCLO piccolo presynaptic cytomatrix protein ISO RGD PMID:11182086 RGD:9850132 NCBI chr 7:74,714,364...75,126,518 JBrowse link
G PNMT phenylethanolamine N-methyltransferase ISO RGD PMID:19651110 RGD:5129482 NCBI chr17:17,618,399...17,620,691
Ensembl chr17:17,835,277...17,837,180
JBrowse link
G POLG DNA polymerase gamma, catalytic subunit ISO RGD PMID:15979612 RGD:8694099 NCBI chr15:68,008,214...68,028,241
Ensembl chr15:87,214,451...87,234,739
JBrowse link
G PPP2CA protein phosphatase 2 catalytic subunit alpha ISO RGD PMID:15728831 RGD:8554004 NCBI chr 5:129,599,606...129,629,312
Ensembl chr 5:135,751,958...135,765,786
JBrowse link
G PRKN parkin RBR E3 ubiquitin protein ligase located_in ISO PMID:12925569 ParkinsonsUK-UCL PMID:12925569 RGD:11541113 NCBI chr 6:159,293,016...160,679,106
Ensembl chr 6:164,314,990...165,678,770
JBrowse link
G PRNP prion protein (Kanno blood group) located_in IEA Ensembl GO_REF:0000107 NCBI chr20:4,713,616...4,728,847
Ensembl chr20:4,523,155...4,523,916
JBrowse link
G PRPH peripherin ISO RGD PMID:10416873 RGD:11554026 (All species) (All species) NCBI chr12:39,451,832...39,456,800
Ensembl chr12:40,337,626...40,342,611
JBrowse link
G PRSS12 serine protease 12 located_in IEA Ensembl
TreeGrafter
GO_REF:0000107 GO_REF:0000118 NCBI chr 4:110,727,731...110,801,258
Ensembl chr 4:121,279,868...121,353,151
JBrowse link
G PTPRN2 protein tyrosine phosphatase receptor type N2 ISO RGD PMID:9714834 RGD:2311685 NCBI chr 7:149,158,513...150,390,077
Ensembl chr 7:160,851,703...161,756,325
JBrowse link
G RAB3A RAB3A, member RAS oncogene family located_in IEA Ensembl GO_REF:0000107 NCBI chr19:17,672,661...17,679,541
Ensembl chr19:18,649,166...18,656,768
JBrowse link
G RAB5A RAB5A, member RAS oncogene family located_in IEA Ensembl GO_REF:0000107 NCBI chr 3:19,866,110...19,903,701
Ensembl chr 3:20,197,067...20,234,579
JBrowse link
G RPL26 ribosomal protein L26 ISO RGD PMID:19760869 RGD:11036076 NCBI chr17:43,274,839...43,282,606
Ensembl chr17:48,009,198...48,015,977
JBrowse link
G SCARA5 scavenger receptor class A member 5 located_in IEA TreeGrafter GO_REF:0000118 NCBI chr 8:27,143,737...27,271,301
Ensembl chr 8:24,345,260...24,469,881
JBrowse link
G SCGN secretagogin, EF-hand calcium binding protein located_in IEA TreeGrafter GO_REF:0000118 NCBI chr 6:25,486,599...25,571,272
Ensembl chr 6:25,812,443...25,862,227
JBrowse link
G SLC18A1 solute carrier family 18 member A1 located_in IEA TreeGrafter GO_REF:0000118 NCBI chr 8:19,369,843...19,408,412
Ensembl chr 8:16,318,744...16,353,708
JBrowse link
G SLC18A2 solute carrier family 18 member A2 located_in ISO
IEA
RGD
TreeGrafter
PMID:20534840 GO_REF:0000118 RGD:5130935 NCBI chr10:113,823,005...113,862,451
Ensembl chr10:117,250,639...117,290,064
JBrowse link
G SLC18A3 solute carrier family 18 member A3 located_in IEA TreeGrafter GO_REF:0000118 NCBI chr10:44,630,006...44,632,419 JBrowse link
G SLC4A8 solute carrier family 4 member 8 located_in ISO PMID:22102085 ARUK-UCL PMID:22102085 RGD:15090838 NCBI chr12:37,243,593...37,329,083
Ensembl chr12:38,134,574...38,214,036
JBrowse link
G SNCA synuclein alpha ISO RGD PMID:10777786 PMID:15804428 RGD:2291796 RGD:737667 NCBI chr 4:82,018,585...82,132,938
Ensembl chr 4:92,737,608...92,850,600
JBrowse link
G SNCB synuclein beta ISO RGD PMID:10777786 RGD:737667 NCBI chr 5:171,918,297...171,928,672
Ensembl chr 5:178,988,439...178,998,800
JBrowse link
G SYP synaptophysin located_in IEA Ensembl GO_REF:0000107 NCBI chr  X:41,487,538...41,500,039
Ensembl chr  X:49,340,021...49,352,420
JBrowse link
G SYT11 synaptotagmin 11 located_in ISO PMID:12925569 ParkinsonsUK-UCL PMID:12925569 RGD:11541113 NCBI chr 1:131,193,999...131,218,752
Ensembl chr 1:135,026,032...135,046,943
JBrowse link
G TH tyrosine hydroxylase ISO RGD PMID:14681933 RGD:1580024 NCBI chr11:2,204,820...2,212,750
Ensembl chr11:2,231,248...2,242,433
JBrowse link
G UNC13A unc-13 homolog A located_in IEA TreeGrafter GO_REF:0000118 NCBI chr19:17,088,654...17,175,559
Ensembl chr19:18,068,006...18,150,642
JBrowse link
G UNC13B unc-13 homolog B located_in IEA TreeGrafter GO_REF:0000118 NCBI chr 9:35,011,350...35,255,148
Ensembl chr 9:35,817,353...36,059,894
JBrowse link
G USH2A usherin located_in ISO RGD PMID:16434480 RGD:1600128 NCBI chr 1:191,193,130...191,994,664
Ensembl chr 1:196,048,086...196,850,216
JBrowse link
hippocampal mossy fiber expansion term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G MICAL1 microtubule associated monooxygenase, calponin and LIM domain containing 1 located_in IEA Ensembl GO_REF:0000107 NCBI chr 6:107,247,084...107,269,138
Ensembl chr 6:111,295,548...111,317,214
JBrowse link
G TNN tenascin N located_in IEA Ensembl GO_REF:0000107 NCBI chr 1:150,580,248...150,661,687
Ensembl chr 1:154,278,714...154,357,823
JBrowse link
photoreceptor cell terminal bouton term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G RAPGEF3 Rap guanine nucleotide exchange factor 3 ISO RGD PMID:19883736 RGD:2314691 NCBI chr12:40,974,756...40,999,471
Ensembl chr12:41,848,785...41,873,252
JBrowse link
G SLC1A7 solute carrier family 1 member 7 located_in ISO (MGI:7310191|PMID:16973698) UniProt PMID:16973698 MGI:7310191 NCBI chr 1:52,359,809...52,415,466
Ensembl chr 1:53,960,400...54,015,396
JBrowse link
rod bipolar cell terminal bouton term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G RAPGEF3 Rap guanine nucleotide exchange factor 3 ISO RGD PMID:19883736 RGD:2314691 NCBI chr12:40,974,756...40,999,471
Ensembl chr12:41,848,785...41,873,252
JBrowse link

Term paths to the root
Path 1
Term Annotations click to browse term
  cellular_component 17179
    cellular anatomical entity 16965
      presynapse 845
        terminal bouton 96
          C bouton 0
          F bouton 0
          S bouton 0
          hippocampal mossy fiber expansion 2
          multiple synapse bouton + 0
          photoreceptor cell terminal bouton 2
          rod bipolar cell terminal bouton 1
          synaptic vesicle, readily releasable pool 0
          synaptic vesicle, resting pool 0
          type I terminal bouton + 0
          type II terminal bouton 0
          type III terminal bouton 0
Path 2
Term Annotations click to browse term
  cellular_component 17179
    cellular anatomical entity 16965
      cell projection 2483
        plasma membrane bounded cell projection 2420
          neuron projection 1527
            axon 798
              distal axon 405
                axon terminus 213
                  terminal bouton 96
                    C bouton 0
                    F bouton 0
                    S bouton 0
                    hippocampal mossy fiber expansion 2
                    multiple synapse bouton + 0
                    photoreceptor cell terminal bouton 2
                    rod bipolar cell terminal bouton 1
                    synaptic vesicle, readily releasable pool 0
                    synaptic vesicle, resting pool 0
                    type I terminal bouton + 0
                    type II terminal bouton 0
                    type III terminal bouton 0
paths to the root