A validated antibody toolbox for ALS research

  1. Riham Ayoubi
  2. Emma J MacDougall
  3. Ian McDowell
  4. Michael S Biddle
  5. Bárbara T Ferreira
  6. CongYao Zha
  7. Marie-France Dorion
  8. Jay P Ross
  9. Sara Gonzalez Bolivar
  10. Vera Ruiz Moleon
  11. Charles Alende
  12. Vincent Francis
  13. Maryam Fotouhi
  14. Mathilde Chaineau
  15. Carol X Chen
  16. Valerio EC Piscopo
  17. Vincent Soubannier
  18. Irina Shlaifer
  19. Zhipeng You
  20. Michael Nicouleau
  21. Tracy Keates
  22. Wen Hwa Lee
  23. Brian D Marsden
  24. Leonidas Koukouflis
  25. Edvard Wigren
  26. Carolyn A Marks
  27. Luke M Healy
  28. Patrick A Dion
  29. Guy A Rouleau
  30. Edward A Fon
  31. Harvinder S Virk
  32. Susanne Gräslund
  33. Opher Gileadi
  34. Aled M Edwards
  35. Thomas M Durcan
  36. Peter S McPherson
  37. Carl Laflamme  Is a corresponding author
  1. Structural Genomics Consortium, Montreal Neurological Institute-Hospital (The Neuro), McGill University, Canada
  2. Neurodegenerative Diseases Research Group, Department of Neurology and Neurosurgery, Montreal Neurological Institute-Hospital (The Neuro), McGill University, Canada
  3. NIHR Respiratory Biomedical Research Centre, Department of Respiratory Sciences, University of Leicester, United Kingdom
  4. Early Drug Discovery Unit (EDDU), Department of Neurology and Neurosurgery, Montreal Neurological Institute-Hospital (The Neuro), McGill University, Canada
  5. Department of Genetics, Stanford University School of Medicine, United States
  6. Structural Genomics Consortium, Nuffield Department of Medicine, University of Oxford, United Kingdom
  7. Centre for Human Genetics and Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, United Kingdom
  8. Nuffield Department of Medicine, University of Oxford, United Kingdom
  9. Structural Genomics Consortium, Department of Medicine, Karolinska Institute, Sweden
  10. Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute-Hospital (The Neuro), McGill University, Canada
  11. School of Pharmaceutical Sciences, Faculty of Medicine, University of Ottawa, Canada
6 figures, 3 tables and 3 additional files

Figures

Figure 1 with 5 supplements
Summary of antibody performance for ALS-RAP proteins.

(A) Overview of the identification of high-quality antibodies targeting ALS-RAP proteins. (B) Percentage of ALS-RAP targets covered by at least one specific renewable (monoclonal or recombinant) antibody for the indicated application. (C) Percentage of tested antibodies that met specificity criteria in each indicated application.

Figure 1—figure supplement 1
Characterization of ALS-RAP targets.

Number of PubMed entries related to ALS-RAP genes. Black points represent the number of entries retrieved using the search term “gene name + ALS,” while gray points represent entries retrieved using the gene name alone. The x-axis indicates the number of PubMed entries, and the y-axis lists the gene names.

Figure 1—figure supplement 2
ALS-RAP RNA expression across brain cell types.

Heatmap showing normalized RNA expression values from the Human Protein Atlas (HPA) single-nuclei brain dataset. Expression is given as nTPM values on a scale from 0 to 500. Genes denoted with an asterisk (*) are classified as “barely detectable” but show substantial expression in a single-cell type.

Figure 1—figure supplement 3
Protein-level characterization of iPSC-derived neurological cells.

(A) Table listing cell type–specific marker proteins. (B) WB analysis of marker proteins using antibodies against the indicated proteins. A Ponceau-stained membrane is shown to assess protein loading and transfer efficiency. Lysates were prepared from the indicated human iPSC-derived cell types or fetal astrocyte culture. Vertical lines between the motor neuron and DA neuron lanes and between the DA neuron and microglia lanes indicate that WB were spliced to remove additional conditions not relevant to this study. DA, dopaminergic; NPC, neuronal progenitor cells.

Figure 1—figure supplement 4
Quality control and marker validation of iPSC-derived microglia.

(A) Immunofluorescence staining showing expression of IBA1 and PU.1 in iMGs, with no detectable signal in undifferentiated iPSCs. (B) Representative flow cytometry plots demonstrating expression of CD45 and CD11b in iMGs but not in iPSCs. (C) Quantification of the percentage of CD45-positive, CD11b-positive, and double-positive cells in iPSCs and iMGs, as measured by flow cytometry (N=4). Statistical analysis was performed using two-way ANOVA with Bonferroni post hoc test. (D) RT-qPCR expression levels of canonical microglial markers in iMGs compared to iPSCs (N=3). Statistical analysis was performed using Student’s t-test. iMG, iPSC-derived microglia; iPSC, induced pluripotent stem cell. *p≤0.05, **p≤0.01, ***p≤0.001, ****p≤0.0001. Scale bar, 50 µm.

Figure 1—figure supplement 5
STRING analysis of known physical interactions between ALS-RAP proteins.
YCharOS antibody characterization workflow for Galectin-1 (LGALS1).

Ten Galectin-1 antibodies were evaluated side-by-side across three applications using HAP1 WT and LGALS1 KO cells. (A) Whole-cell protein lysates from HAP1 WT and LGALS1 KO cells (20 µg per lane) were analyzed in WB using the indicated Galectin-1 antibodies. Ponceau-stained membranes are shown to assess protein loading and transfer efficiency. (B) Whole-cell protein lysates (10 µg) and conditioned media (10 µg) from HAP1 WT and LGALS1 KO cells were analyzed in WB using antibody 12936, as in (A), to detect intracellular and secreted Galectin-1. (C) Immunoprecipitation was performed from HAP1 WT cell lysates using the indicated Galectin-1 antibodies. Starting material (SM), unbound fractions (UB), and whole immunoprecipitates (IP) were analyzed by WB. Anti-Galectin-1 antibody A21218 was used as a primary antibody. (D) HAP1 WT and LGALS1 KO cells were differentially labeled with green and far-red fluorescent dyes, respectively, mixed at a 1:1 ratio, and plated in optically clear 96-well plates. Cells were stained with the indicated Galectin-1 antibodies, followed by Coralite 555–conjugated secondary antibodies and DAPI. Images were acquired in the blue (DAPI), green (WT), red (antibody staining), and far-red (KO) channels. Representative grayscale images of the blue and red channels are shown; WT and KO cells are outlined with green and magenta dashed lines, respectively. Scale bar, 10 µm. Recombinant antibodies are denoted by double asterisks (**) and monoclonal antibodies by single asterisks (*) after the catalogue numbers; polyclonal antibodies are unmarked. Antibody screening was performed in two independent experiments; representative data from one experiment are shown. Galectin-1 antibody characterization raw datasets are available at https://doi.org/10.5281/zenodo.21538630.

Accessing curated antibody characterization data through the OGA website.

YCharOS antibody characterization data for ALS-RAP proteins are accessible through the Only Good Antibodies (OGA) website (https://onlygoodantibodies.co.uk/). The OGA homepage provides a searchable interface for the 33 ALS-RAP proteins, together with 35 additional neurological disease-associated proteins evaluated by YCharOS, and includes links to key OGA publications, data interpretation guidelines, antibody characterization protocols, and a portal for nominating new targets. (A) Representative results page generated by searching LGALS1, showing filters for host species, clonality, recombinant format, and OGA-recommended applications; the WB filter is applied. A schematic panel at the top illustrates ideal antibody performance across applications, while antibodies matching the selected filters are displayed in randomized order. (B) Number of antibodies returned following application of the selected filters.

Detection of 13 ALS-RAP proteins across five human-derived neurological cell types and three primary cell types.

WB showing detection of 13 ALS-RAP proteins in eight lysates from the indicated five iPSC-derived cell types and three primary cell types. For each protein, two independent experiments are shown: chemiluminescence-based WB (left), performed using a defined lysate batch across all corresponding blots, and fluorescence-based WB (right), performed using a second independent lysate batch. Proteins are listed in alphabetical order. Vertical lines between the motor neuron and DA neuron lanes indicate that the blots were spliced to remove additional conditions not relevant to this study. Lane identities: 1, motor neurons; 2, DA neurons; 3, oligodendrocytes; 4, astrocytes; 5, microglia; 6, fetal astrocytes; 7, fetal microglia; 8, MDMs. DA, dopaminergic; MDM, monocyte-derived macrophages. Raw WB data and supporting working sheet for the ALS-RAP protein expression profiling across neurological cell types by chemiluminescent WB are available at https://doi.org/10.5281/zenodo.18484385. Raw WB data and supporting working sheet for the ALS-RAP protein expression profiling across neurological cell types by fluorescent WB are available at https://doi.org/10.5281/zenodo.18484483.

Detection of 10 ALS-RAP proteins across five human-derived neurological cell types and two primary cell types.

WB showing detection of 10 ALS-RAP proteins in 7 lysates from the indicated five iPSC-derived cell types and 2 primary cell types. Fetal astrocyte lysate was not available for either chemiluminescence-based WB (left) and fluorescence-based WB (right). Proteins are listed in alphabetical order. Lane identities: 1, motor neurons; 2, DA neurons; 3, oligodendrocytes; 4, astrocytes; 5, microglia; 7, fetal microglia; 8, MDMs. DA, dopaminergic; MDM, monocyte-derived macrophages. Raw WB data and supporting working sheet for the ALS-RAP protein expression profiling across neurological cell types by chemiluminescent WB are available at https://doi.org/10.5281/zenodo.18484385. Raw WB data and supporting working sheet for the ALS-RAP protein expression profiling across neurological cell types by fluorescent WB are available at https://doi.org/10.5281/zenodo.18484483.

Detection of seven ALS-RAP proteins across five human-derived neurological cell types and primary cell types.

(A) Chemiluminescence-based WB (left) showing detection of seven ALS-RAP proteins in seven lysates from the indicated five iPSC-derived cell types and two primary cell types. Fetal astrocyte lysate was not available for this WB. Fluorescence-based WB (right) showing detection of seven ALS-RAP proteins in eight lysates from the indicated five iPSC-derived cell types and three primary cell types. A representative Ponceau-stained membrane and total protein stain of all eight samples are shown to exemplify protein loading and transfer efficiency. Lane identities: 1, motor neurons; 2, DA neurons; 3, oligodendrocytes; 4, astrocytes; 5, microglia; 6, fetal astrocytes; 7, fetal microglia; 8, MDMs. DA, dopaminergic; MDM, monocyte-derived macrophages. (B) Summary of 16 targets for which WB data and Human Protein Atlas RNA expression profiles are concordant, grouped by expression category. Raw WB data and supporting working sheet for the ALS-RAP protein expression profiling across neurological cell types by chemiluminescent WB are available at https://doi.org/10.5281/zenodo.18484385. Raw WB data and supporting working sheet for the ALS-RAP protein expression profiling across neurological cell types by fluorescent WB are available at https://doi.org/10.5281/zenodo.18484483.

Tables

Table 1
ALS-associated genes selected for the ALS-RAP study.
Gene nameUniProt IDEffect size (variants; effect size)ClinGen curated descriptionPubMed entries
(gene name +ALS)
PubMed entries
(gene name)
SOD1P00441Rare; highDefinitive467910,855
TARDBPQ13148Rare; highDefinitive28465061
C9orf72Q96LT7Rare; highDefinitive19522757
FUSP35637Rare; highDefinitive13325694
VCPP55072Rare; highDefinitive2672354
OPTNQ96CV9Rare; highDefinitive2061640
SQSTM1Q13501Rare; intermediateModerate1833848
TBK1Q9UHD2Rare; highDefinitive1782749
VAPBO95292Rare; intermediateDefinitive169417
ATXN2Q99700Rare; intermediateDefinitive163437
UBQLN2Q9UHD9Rare; highDefinitive139206
ALS2Q96Q42Rare; intermediateDefinitive127250
ANGP03950Rare; intermediateLimited991592
SETXQ7Z333Rare; intermediateNot available93257
CHCHD10Q8WYQ3Rare; intermediateModerate93174
HNRNPA1P09651Rare; unknownNot available91574
PFN1P07737Rare; intermediateDefinitive79356
TAF15Q92804Rare; intermediateLimited66251
NEK1Q96PY6Rare; highDefinitive64192
MATR3P43243Rare; unknownDefinitive61162
KIF5AQ12840Rare; intermediateDefinitive61259
CHMP2BQ9UQN3Rare; intermediateDefinitive48225
TIA1P31483Rare; intermediateLimited471146
ANXA11P50995Rare; intermediateDefinitive47124
CCNFP41002Rare; smallLimited41184
FIG4Q92562Rare; intermediateLimited40170
HNRNPA2B1P22626Rare; unknownModerate38535
SPG11Q96JI7Rare; intermediateDefinitive34283
TUBA4AP68366Rare; highModerate3295
SIGMAR1Q99720Rare; unknownNot available27202
CAV1Q03135Rare; smallLimited146065
ACSL5Q9ULC5Common; smallNot available4192
LGALS1P09382Rare; highNot available3308
Table 2
Galectin-1 antibodies tested in this study.
CompanyCatalog numberLot numberRRID
(antibody registry)
ClonalityClone IDHostConcentration
(µg/µL)
Vendors recommended applications
Abcamab108389*1018000-29AB_10863417Recombinant monoEPR3205Rabbit1.35WB, IF
Abcamab138513†1086382-8AB_2894851MonoclonalEPR3206(2)Rabbit0.26WB, IF
Abcamab192842*1011456-2AB_3725515Recombinant monoSP247Rabbit0.04WB
ABclonalA21218*3522042922AB_3725523Recombinant monoARC53156Rabbit1.20WB
Aviva Systems BiologyARP58491_P050QC25810-42978AB_2046045Polyclonal-Rabbit0.50WB
Bio-Techne (R&D Systems)MAB1152†CJKC0325011AB_3657585Monoclonal933133Mouse0.50WB
Cell Signaling Technology12936*3AB_2798065Recombinant monoD608TRabbit0.10WB, IF
Thermo Fisher ScientificMA5-32779*79527780AB_2810056Recombinant monoJM13-37Rabbit1.00WB, IP, IF
Thermo Fisher ScientificMA5-35566*79531623AB_2849466Recombinant mono7W5Q6Rabbit2.00WB, IF
Thermo Fisher ScientificMA5-47904*79531680AB_3074348Recombinant monoSAIC-25B-112Rabbit1.00WB
  1. *

    Recombinant antibody.

  2. †

    Monoclonal antibody.

Key resources table
Reagent type (species) or resourceDesignationSource or referenceIdentifiersAdditional information
AntibodyHRP-Goat polyclonal anti-Rabbit antibody Secondary Antibody (H+L)Thermo Fisher ScientificCAT#65-6120;
RRID:AB_2533967
0.05 µg/mL
AntibodyHRP-Goat polyclonal anti-Mouse antibody Secondary Antibody (H+L)Thermo Fisher ScientificCAT#62-6520; RRID:AB_25339470.1 µg/mL
AntibodyIRDye 680CW Goat polyclonal anti-Rabbit Secondary Antibody (H+L)LI-COR BiosciencesCAT#926-68071; RRID:NA0.05 µg/mL
AntibodyIRDye 680CW Goat polyclonal anti-Mouse Secondary Antibody (H+L)LI-COR BiosciencesCAT#926-68070; RRID:NA0.1 µg/mL
AntibodyIRDye 800CW Goat polyclonal anti-Rabbit Secondary Antibody (H+L)LI-COR BiosciencesCAT#926-32211; RRID:NA0.05 µg/mL
AntibodyIRDye 800CW Goat polyclonal anti-Mouse Secondary Antibody (H+L)LI-COR BiosciencesCAT#926-32210; RRID:NA0.1 µg/mL
AntibodyHRP-Goat multiclonal recombinant anti-Rabbit Secondary Antibody (H+L)ProteintechCAT#RGAR001; RRID:AB_30735050.05 µg/mL
AntibodyHRP-Goat multiclonal recombinant anti-Mouse Secondary Antibody (H+L)ProteintechCAT#RGAM001; RRID:AB_30683330.5 µg/mL
AntibodyCoraLite Plus 555-Goat multiclonal recombinant Anti-Rabbit Secondary Antibody (H+L)ProteintechCAT# RGAR003; RRID:AB_30735070.5 µg/mL
AntibodyCoraLite Plus 555-Goat multiclonal recombinant Anti-Mouse Secondary Antibody (H+L)ProteintechCAT# RGAM003; RRID:AB_30685390.5 µg/mL
AntibodyRabbit recombinant monoclonal anti-Galectin-1 (clone EPR3205)AbcamCAT#ab108389;
RRID:AB_10863417
WB:1/100; IP 2 µg;
IF:1/100
AntibodyRabbit recombinant monoclonal anti-Galectin-1 (clone EPR3206(2))AbcamCAT#ab138513;
RRID:AB_2894851
WB:1/10,000; IP 2 µg; IF:1/250
AntibodyRabbit recombinant monoclonal anti-Galectin-1 (clone SP247)AbcamCAT#ab192842;
RRID:AB_3725515
WB:1/100; IP 2 µg;
IF:1/100
AntibodyRabbit recombinant monoclonal anti-Galectin-1 (clone ARC53156)ABclonalCAT#A21218;
RRID:AB_3725523
WB:1/11,000; IP 2 µg; IF:1/500
AntibodyRabbit polyclonal anti-Galectin-1Aviva Systems BiologyCAT#ARP58491_P050; RRID:AB_2046045WB:1/100; IP 2 µg;
IF:1/250
AntibodyMouse monoclonal anti-Galectin-1 (clone 933133)Bio-Techne (R&D Systems)CAT# MAB1152;
RRID:AB_3657585
WB:1/250; IP 2 µg;
IF:1/500
AntibodyRabbit recombinant monoclonal anti-Galectin-1 (clone D608T)Cell Signaling TechnologyCAT#12936;
RRID:AB_2798065
WB:1/1000; IP 2 µg;
IF:1/50
AntibodyRabbit recombinant monoclonal anti-Galectin-1 (clone JM13-37)Thermo Fisher ScientificCAT#MA5-32779;
RRID:AB_2810056
WB:1/2000; IP 2 µg;
IF:1/2000
AntibodyRabbit recombinant monoclonal anti-Galectin-1 (clone A7W5Q6)Thermo Fisher ScientificCAT#MA5-35566;
RRID:AB_2849466
WB:1/200; IP 2 µg;
IF:1/100
AntibodyRabbit recombinant monoclonal anti-Galectin-1 (clone SAIC-25B-112)Thermo Fisher ScientificCAT#MA5-47904;
RRID:AB_3074348
WB:1/1000; IP 2 µg;
IF:1/1000
AntibodyRabbit recombinant monoclonal anti-CHMP2B (clone JE54-35)Thermo Fisher ScientificCAT#MA5-36184; RRID:AB_2890433WB:1/500
AntibodyRabbit recombinant monoclonal anti-FIG4 (clone N202/7R)AddgeneCAT#192037; RRID:AB_2916241WB:1/100
AntibodyMouse monoclonal anti-FUS (clone CL0190)AbcamCAT#ab154141; RRID:AB_2885092WB:1/1000
AntibodyMouse monoclonal anti-HNRNPA1 (clone 4B10)Bio-Techne (Novus Biologicals)CAT#NB100-672; RRID:AB_524308WB:1/1000
AntibodyRabbit recombinant monoclonal anti-MATR3 (clone EPR10634(B))AbcamCAT#ab151739; RRID:AB_2885091WB:1/10,000
AntibodyRabbit polyclonal anti-NEK1GeneTexCAT#GTX130828; RRID:AB_2886357WB:1/500
AntibodyMouse monoclonal anti-OPTN (clone 6C1H4)ProteintechCAT#60293-1-Ig; RRID:AB_2881408WB:1/5000
AntibodyRabbit recombinant monoclonal anti-SIGMAR1 (clone D4J2E)Cell Signaling TechnologyCAT#61994; RRID:AB_2799617WB:1/1000
AntibodyMouse monoclonal anti-SOD1 (clone 2F10G1)ProteintechCAT#67480-1-Ig; RRID:AB_2882707Chemiluminescent WB:1/10,000
AntibodyRabbit polyclonal anti-SOD1GeneTexCAT#GTX100554; RRID:AB_10618670Fluorescent WB:1/1000
AntibodyRabbit recombinant monoclonal anti-SQSTM1 (clone EPR4844)AbcamCAT#ab109012; RRID:AB_2810880Fluorescent WB:1/1000
AntibodyMouse monoclonal anti-SQSTM1 (clone 2C11)AbcamCAT#ab56416; RRID:AB_945626Chemiluminescent WB:1/1000
AntibodyRabbit recombinant monoclonal anti-TAF15 (clone JE61-92)Thermo Fisher ScientificCAT#MA5-44822; RRID:AB_2931279WB:1/1000
AntibodyRabbit recombinant monoclonal anti-TARDBP (clone 11N20)ProteintechCAT#80001-1-RR; RRID:AB_2882933WB:1/10,000
AntibodyRabbit recombinant monoclonal anti-TBK1 (clone EP611Y)AbcamCAT#ab40676; RRID:AB_776632Chemiluminescent WB:1/10,000
AntibodyRabbit recombinant monoclonal anti-TBK1 (clone E8I3G)Cell Signaling TechnologyCAT#38066; RRID:AB_2827657Fluorescent WB:1/1000
AntibodyRabbit recombinant monoclonal anti-TIA1 (clone D1Q3K)Cell Signaling TechnologyCAT#86050; RRID:AB_2800070WB:1/1000
AntibodyMouse monoclonal anti-UBQLN2 (clone 6H9)AbcamCAT#ab190283; RRID:AB_2747782WB:1/1000
AntibodyRabbit recombinant monoclonal anti-VCP (clone 7F3)Cell Signaling TechnologyCAT#2649; RRID:AB_2214629Chemiluminescent WB:1/10,000
AntibodyRabbit recombinant monoclonal anti-VCP (clone EPR3307(2))AbcamCAT#ab109240; RRID:AB_10862588Fluorescent WB:1/500
AntibodyRabbit polyclonal anti-ANXA11Aviva Systems BiologyCAT#ARP87950_P050; RRID:AB_2894925WB:1/1000
AntibodyMouse monoclonal anti-C9orf72 (clone GT1553)GeneTexCAT#GTX634482; RRID:AB_2784545WB:1/1000
AntibodyRabbit polyclonal anti-CHCHD10ProteintechCAT#25671-1-AP; RRID:AB_2880187Chemiluminescent WB:1/500
AntibodyMouse monoclonal anti-CHCHD10 (clone OTI3B8)Thermo Fisher ScientificCAT#MA5-27535; RRID:AB_2724132Fluorescent WB:1/500
AntibodyRabbit recombinant monoclonal anti-LGALS1 (clone EPR3206(2))AbcamCAT#ab138513; RRID:AB_2894851WB:1/500
AntibodyRabbit recombinant monoclonal anti-PFN1 (clone ARC1469)ABclonalCAT#A9188; RRID:AB_2863682WB:1/10,000
AntibodyRabbit recombinant monoclonal anti-SPG11 (clone 2H25L11)Thermo Fisher ScientificCAT#702776; RRID:AB_2725406WB:1/200
AntibodyMouse monoclonal anti-ACSL5 (clone 5H8)AbnovaCAT#H00051703-M01; RRID:AB_509241WB:1/200
AntibodyRabbit recombinant monoclonal anti-CAV1 (clone SZ02-01)Thermo Fisher ScientificCAT#MA5-32020; RRID:AB_2809314Chemiluminescent WB:1/500
AntibodyRabbit recombinant monoclonal anti-CAV1 (clone ARC50848)ABclonalCAT#A19006; RRID:AB_2862498Fluorescent WB:1/500
AntibodyRabbit recombinant monoclonal anti-ATXN2 (clone EPR23630-49)AbcamCAT#ab254362; RRID:AB_2885130WB:1/1000
AntibodyRabbit recombinant monoclonal anti-TUBA4A (clone
EPR13478(B))
AbcamCAT#ab176560; RRID:AB_2860019Chemiluminescent WB:1/500
AntibodyRabbit recombinant monoclonal anti-TUBA4A (clone JM73-24)Thermo Fisher ScientificCAT#MA5-32738; RRID:AB_2810015Fluorescent WB:1/1000
AntibodyRabbit recombinant monoclonal anti-VAPB (clone EPR27026-50)AbcamCAT#ab315013; RRID:AB_3086770Chemiluminescent WB:1/500
AntibodyRabbit polyclonal anti-VAPBThermo Fisher ScientificCAT#PA5-53023; RRID:AB_2649391Fluorescent WB:1/200
AntibodyRabbit recombinant monoclonal anti-ALS2 (clone EPR11185)AbcamCAT#ab170896; RRID:AB_2885099WB:1/1000
AntibodyMouse monoclonal anti-HNRNPA2B1 (clone DP3B3)Bio-Techne (Novus Biologicals)CAT#NB120-6102; RRID:AB_790226WB:1/500
AntibodyRabbit recombinant monoclonal anti-KIF5A (clone 241124H1)ProteintechCAT#84013-4-RR; RRID:AB_3671581WB:1/500
AntibodyRabbit recombinant monoclonal anti-Synaptotagmin 1 (clone HL1626)GeneTexCAT#GTX637119; RRID:AB_3068350WB:1/500
AntibodyRabbit recombinant monoclonal anti-CD44 (clone EPR18668)AbcamCAT#ab189524; RRID:AB_2885107WB:1/1000
AntibodyRabbit recombinant monoclonal anti-ISL1 (clone EPR10362)AbcamCAT#ab178400; RRID:AB_2927537WB:1/500
AntibodyRat recombinant monoclonal anti-Myelin Basic Protein antibody (clone 12)AbcamCAT#ab7349; RRID:AB_305869WB:1/500
AntibodyRabbit polyclonal anti-Tyrosine HydroxylasePel-FreezeCAT#P40101-150: RRID:AB_2617184WB:1/500
AntibodyRabbit recombinant monoclonal anti-CD11b (clone EPR1344)AbcamCAT#ab133357; RRID:AB_2650514WB:1/500
AntibodyRabbit recombinant monoclonal anti-IBA1 (clone E4O4W)Cell Signaling TechnologyCAT#17198; RRID:AB_2820254WB:1/500
AntibodyChicken monoclonal recombinant anti-IBA1 (clone Ch311H9)Synaptic SystemsCAT#234009; RRID:AB_2891282IF:1/1000
AntibodyMouse monoclonal anti-CD11b, pre-conjugated with PE (clone ICRF44)BD BiosciencesCAT#555388; RRID:AB_395789IF:1/20
AntibodyMouse monoclonal anti-CD45, pre-conjugated with Alexa Fluor 700 (clone HI30)BioLegendCAT#304024; RRID:AB_493761IF:1/40
AntibodyRabbit polyclonal anti-PU.1Cell Signaling TechnologyCAT#2266; RRID:AB_10692379IF:1/500
Commercial assay or kitRNeasy Mini KitQIAGENCAT#74106
Commercial assay or kitSTEMdiff Forebrain Neuron Differentiation KitSTEMCELL TechnologiesCAT#08600
Commercial assay or kitSTEMdiff Forebrain Neuron Maturation KitSTEMCELL TechnologiesCAT#08605
Commercial assay or kitSTEMdiff Hematopoietic KitSTEMCELL TechnologiesCAT#05310
Commercial assay or kitSTEMdiff Hematopoietic KitSTEMCELL TechnologiesCAT#05310
Commercial assay or kitSTEMdiff Hematopoietic KitSTEMCELL TechnologiesCAT#05310
Cell line (human)HAP1 WTHorizon DiscoveryCAT#C631; RRID:CVCL_Y019Cells were confirmed mycoplasma-free
Cell line (human)HAP1 LGALS1 KOHorizon DiscoveryCAT#HZGHC005989c006; RRID:CVCL_XQ14Cells were confirmed mycoplasma-free
Cell line (human)Healthy control iPSCs from the AIW002-02 backgroundEDDU, McGill UniversityNACells were confirmed mycoplasma-free
Cell line (human)Healthy control iPSCs from the QPN929 backgroundEDDU, McGill UniversityNACells were confirmed mycoplasma-free
Software, algorithmLI-COR Image Studio Litelicorbio.com/image-studioNA
Software, algorithmFIJI Softwarefiji.sc/RRID:SCR_002285
Software, algorithmMetaXpress High-Content Screening Software version 6.7.1.157moleculardevices.com/products/cellular-imaging-systems/high-content-analysis/metaxpress - overviewRRID:SCR_016654
Software, algorithmPyCharm 2023.3.4jetbrains.com/pycharm/RRID:SCR_018221
Software, algorithmRStudio 2023.09.1cran.rstudio.com/RRID:SCR_000432
OtherAccutaseSTEMCELL TechnologiesCAT#07922
OtherAntibody Registryantibodyregistry.orgRRID:SCR_006397
OtherAstrocyte Growth Supplements (AGS)ScienCell Research LaboratoriesCAT#1852
OtherAstrocyte Medium (AM)ScienCell Research LaboratoriesCAT#1801-b
OtherBLUelf Prestained Protein LadderFroggaBioCAT#PM008
OtherCellosaurus—- a knowledge resource on cell linescellosaurus.orgRRID:SCR_013869
OtherCellTracker deep red dyeThermo Fisher ScientificCAT#C34565
OtherCellTracker green chloromethyl derivative of fluorescein diacetate (CMFDA) dyeThermo Fisher ScientificCAT#C2925
OtherCentrifugal filter unit, Amicon Ultra-15MilliporeSigmaCAT#UFC901096
OtherCiteAb—Reagent Search & Life Science Dataciteab.comRRID:SCR_009653
OtherClinGenhttps://clinicalgenome.org/RRID:SCR_014968
OtherDepMap: The Cancer Dependency Map Project at Broad Institutedepmap.org/portalRRID:SCR_017655
OtherLive/Dead Fixable Aqua viability dyeThermo Fisher ScientificCAT#L34965
OthermTeSR1STEMCELL TechnologiesCAT#85850
OtherNuPAGE Bis-Tris Midi Protein Gels, 10%, 1.0 mmThermo Fisher ScientificCAT#WG1201BOX
OtherNuPAGE MES SDS Running Buffer (20×)Thermo Fisher ScientificCAT#NP000202
OtherNuPAGE MOPS SDS Running Buffer (20×)Thermo Fisher ScientificCAT#NP000102
OtherPhenoPlate, 96-well, optically clear flat bottomPerkinElmerCAT#6055300
OtherPierce IP Lysis BufferThermo Fisher ScientificCAT#87788
OtherPubMedpubmed.ncbi.nlm.nih.govRRID:SCR_004846
OtherRIPA Lysis and Extraction BufferThermo Fisher ScientificCAT#89901
OtherStructural Genomics Consortiumhttps://www.thesgc.org/RRID:SCR_003890
OtherThe Human Protein Atlasproteinatlas.orgRRID:SCR_006710
OtherTRIzolThermo Fisher ScientificCAT#15596026
OtherTrueStain blocking reagentBioLegendCAT#422302
OtherZenodohttps://zenodo.org/RRID:SCR_004129

Additional files

Supplementary file 1

List of 303 antibodies targeting ALS-RAP proteins evaluated in this study, together with the DOI linking to the corresponding antibody characterization reports.

https://cdn.elifesciences.org/articles/111349/elife-111349-supp1-v1.xlsx
Supplementary file 2

Sequences of synthetic ScFv antibodies.

https://cdn.elifesciences.org/articles/111349/elife-111349-supp2-v1.xlsx
MDAR checklist
https://cdn.elifesciences.org/articles/111349/elife-111349-mdarchecklist1-v1.pdf

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  1. Riham Ayoubi
  2. Emma J MacDougall
  3. Ian McDowell
  4. Michael S Biddle
  5. Bárbara T Ferreira
  6. CongYao Zha
  7. Marie-France Dorion
  8. Jay P Ross
  9. Sara Gonzalez Bolivar
  10. Vera Ruiz Moleon
  11. Charles Alende
  12. Vincent Francis
  13. Maryam Fotouhi
  14. Mathilde Chaineau
  15. Carol X Chen
  16. Valerio EC Piscopo
  17. Vincent Soubannier
  18. Irina Shlaifer
  19. Zhipeng You
  20. Michael Nicouleau
  21. Tracy Keates
  22. Wen Hwa Lee
  23. Brian D Marsden
  24. Leonidas Koukouflis
  25. Edvard Wigren
  26. Carolyn A Marks
  27. Luke M Healy
  28. Patrick A Dion
  29. Guy A Rouleau
  30. Edward A Fon
  31. Harvinder S Virk
  32. Susanne Gräslund
  33. Opher Gileadi
  34. Aled M Edwards
  35. Thomas M Durcan
  36. Peter S McPherson
  37. Carl Laflamme
(2026)
A validated antibody toolbox for ALS research
eLife 15:RP111349.
https://doi.org/10.7554/eLife.111349.3