Thr391

Site Information
AtIPRRNtLPAMDNS SwissProt Entrez-Gene
Blast this site against: NCBI SwissProt PDB
Site Group ID: 448383
Associated spectra: 1 CST

In vivo Characterization
Methods used to characterize site in vivo:	mass spectrometry ( 1 , 2 , 3 , 4 , 5 , 6 , 7 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 ) , phospho-antibody ( 49 ) , western blotting ( 49 )
Disease tissue studied:	breast cancer ( 4 , 10 , 49 ) , breast ductal carcinoma ( 4 ) , HER2 positive breast cancer ( 1 ) , luminal A breast cancer ( 1 ) , luminal B breast cancer ( 1 ) , breast cancer, surrounding tissue ( 1 ) , breast cancer, triple negative ( 1 , 4 ) , gastric cancer ( 19 , 20 , 21 , 22 ) , gastric carcinoma ( 19 , 20 , 21 , 22 ) , leukemia ( 15 , 32 , 33 , 34 , 45 , 46 , 47 , 48 ) , chronic myelogenous leukemia ( 32 , 33 , 34 , 45 , 46 , 47 , 48 ) , T cell leukemia ( 15 ) , lung cancer ( 6 , 10 , 23 , 24 , 25 , 26 , 27 ) , mesothelioma ( 27 ) , non-small cell lung cancer ( 10 , 23 , 24 , 25 , 26 , 27 ) , non-small cell lung adenocarcinoma ( 6 , 25 , 26 ) , non-small cell large cell lung carcinoma ( 23 ) , non-small cell squamous cell lung carcinoma ( 24 , 27 ) , neuroblastoma ( 2 , 35 , 36 ) , ovarian cancer ( 4 ) , pancreatic ductal adenocarcinoma ( 5 )
Relevant cell line - cell type - tissue:	'pancreatic, ductal'-pancreas ( 5 ) , 293 (epithelial) [AT1 (human), transfection] ( 31 ) , 293 (epithelial) ( 12 , 13 , 14 ) , breast ( 1 , 4 ) , BT-20 (breast cell) ( 10 ) , Calu-3 (pulmonary) ( 25 ) , COS (fibroblast) ( 49 ) , Flp-In T-Rex-293 (epithelial) [PRKD1 (human), genetic knockin] ( 11 ) , Flp-In T-Rex-293 (epithelial) ( 11 ) , H2077 (pulmonary) ( 10 ) , H322M (pulmonary) ( 10 ) , HCC1937 (breast cell) ( 10 ) , HCC2279 (pulmonary) ( 10 ) , HCC366 (pulmonary) ( 10 ) , HCC78 (pulmonary) ( 10 ) , HCC827 (pulmonary) ( 10 ) , HeLa (cervical) ( 3 , 9 , 43 ) , Jurkat (T lymphocyte) ( 7 , 16 , 17 , 18 , 28 , 29 , 30 , 37 , 38 , 39 , 40 , 41 , 42 , 44 , 50 , 51 , 52 , 53 ) , K562 (erythroid) ( 9 , 32 , 33 , 34 , 45 , 46 , 47 , 48 , 54 , 55 , 56 ) , Kit225 (T lymphocyte) ( 15 ) , LAN-6 (neural crest) ( 2 , 35 ) , LCLC-103H (pulmonary) ( 10 ) , lung ( 6 ) , MCF-10A (breast cell) [GAB2 (human), transfection] ( 49 ) , MCF-10A (breast cell) ( 49 ) , MCF-7 (breast cell) ( 10 ) , MDA-MB-468 (breast cell) ( 10 ) , MKN-45 (gastric) ( 19 , 20 , 21 , 22 ) , NCI-H1395 (pulmonary) ( 10 ) , NCI-H1568 (pulmonary) ( 10 ) , NCI-H2030 (pulmonary) ( 10 ) , NCI-H2170 (squamous) ( 24 ) , NCI-H2172 (pulmonary) ( 10 ) , NCI-H226 (pulmonary) ( 27 ) , NCI-H2342 (pulmonary) ( 26 ) , NCI-H520 (squamous) ( 10 ) , NCI-H647 (pulmonary) ( 10 ) , NCI-H661 (pulmonary) ( 23 ) , ovary ( 4 ) , PC9 (pulmonary) ( 10 ) , SH-SY5Y (neural crest) ( 2 , 36 ) , SK-N-BE(2) (neural crest) ( 2 ) , SMS-KCN-A (neural crest) ( 2 )

Upstream Regulation
Regulatory protein:	PIK3CA (human) ( 49 )
Treatments:	Akt-I-1,2 ( 49 ) , EGF ( 49 ) , Go_6850 ( 49 ) , Go_6976 ( 49 ) , H-89 ( 49 ) , IL-2 ( 15 ) , insulin ( 49 ) , KN-62 ( 49 ) , LY294002 ( 49 ) , mPKI ( 49 ) , rapamycin ( 49 ) , U0126 ( 49 ) , wortmannin ( 49 ) , Y27632 ( 49 )

Downstream Regulation
Effects of modification on GAB2:	activity, inhibited ( 49 ) , intracellular localization ( 49 ) , molecular association, regulation ( 49 ) , phosphorylation ( 49 )
Effects of modification on biological processes:	cell growth, altered ( 49 )
Induce interaction with:	14-3-3 beta (human) ( 49 )
Inhibit interaction with:	EGFR (human) ( 49 ) , GRB2 (human) ( 49 ) , SHC1 (human) ( 49 )

References
1	Mertins P, et al. (2016) Proteogenomics connects somatic mutations to signalling in breast cancer. Nature 534, 55-62 27251275 Curated Info
2	Palacios-Moreno J, et al. (2015) Neuroblastoma Tyrosine Kinase Signaling Networks Involve FYN and LYN in Endosomes and Lipid Rafts. PLoS Comput Biol 11, e1004130 25884760 Curated Info
3	Sharma K, et al. (2014) Ultradeep human phosphoproteome reveals a distinct regulatory nature of Tyr and Ser/Thr-based signaling. Cell Rep 8, 1583-94 25159151 Curated Info
4	Mertins P, et al. (2014) Ischemia in tumors induces early and sustained phosphorylation changes in stress kinase pathways but does not affect global protein levels. Mol Cell Proteomics 13, 1690-704 24719451 Curated Info
5	Britton D, et al. (2014) Quantification of pancreatic cancer proteome and phosphorylome: indicates molecular events likely contributing to cancer and activity of drug targets. PLoS One 9, e90948 24670416 Curated Info
6	Schweppe DK, Rigas JR, Gerber SA (2013) Quantitative phosphoproteomic profiling of human non-small cell lung cancer tumors. J Proteomics 91, 286-96 23911959 Curated Info
7	Mertins P, et al. (2013) Integrated proteomic analysis of post-translational modifications by serial enrichment. Nat Methods 10, 634-7 23749302 Curated Info
8	Shiromizu T, et al. (2013) Identification of missing proteins in the neXtProt database and unregistered phosphopeptides in the PhosphoSitePlus database as part of the Chromosome-centric Human Proteome Project. J Proteome Res 12, 2414-21 23312004 Curated Info
9	Zhou H, et al. (2013) Toward a comprehensive characterization of a human cancer cell phosphoproteome. J Proteome Res 12, 260-71 23186163 Curated Info
10	Klammer M, et al. (2012) Phosphosignature predicts dasatinib response in non-small cell lung cancer. Mol Cell Proteomics 11, 651-68 22617229 Curated Info
11	Franz-Wachtel M, et al. (2012) Global detection of protein kinase D-dependent phosphorylation events in nocodazole-treated human cells. Mol Cell Proteomics 11, 160-70 22496350 Curated Info
12	Mulhern D (2011) CST Curation Set: 12830; Year: 2011; Biosample/Treatment: cell line, HEK 293/untreated; Disease: -; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-(Ser/Thr) AMPK Substrate (P-S/T(2)-102) Rabbit mAb Cat#: 5759, PTMScan(R) Phospho-AMPK Substrate Motif (LXRXXS/T) Immunoaffinity Beads Cat#: 5760 Curated Info
13	Mulhern D (2011) CST Curation Set: 12831; Year: 2011; Biosample/Treatment: cell line, HEK 293/untreated; Disease: -; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-(Ser/Thr) AMPK Substrate (P-S/T(2)-102) Rabbit mAb Cat#: 5759, PTMScan(R) Phospho-AMPK Substrate Motif (LXRXXS/T) Immunoaffinity Beads Cat#: 5760 Curated Info
14	Mulhern D (2011) CST Curation Set: 12841; Year: 2011; Biosample/Treatment: cell line, HEK 293/untreated; Disease: -; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXS/T) (23C8D2) Rabbit mAb Cat#: 10001, PTMScan(R) Phospho-Akt Substrate Motif (RXRXXS/T) Immunoaffinity Beads Cat#: 1979 Curated Info
15	Osinalde N, et al. (2011) Interleukin-2 signaling pathway analysis by quantitative phosphoproteomics. J Proteomics 75, 177-91 21722762 Curated Info
16	Mulhern D (2011) CST Curation Set: 12682; Year: 2011; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (F/Y/M)Xp[ST](L/I/M) Curated Info
17	Guo A (2011) CST Curation Set: 12457; Year: 2011; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
18	Guo A (2011) CST Curation Set: 12074; Year: 2011; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (F/Y/M)Xp[ST](L/I/M) Curated Info
19	Moritz A (2011) CST Curation Set: 11933; Year: 2011; Biosample/Treatment: cell line, MKN-45/untreated; Disease: gastric carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
20	Moritz A (2011) CST Curation Set: 11934; Year: 2011; Biosample/Treatment: cell line, MKN-45/untreated; Disease: gastric carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
21	Moritz A (2011) CST Curation Set: 11936; Year: 2011; Biosample/Treatment: cell line, MKN-45/untreated; Disease: gastric carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
22	Moritz A (2011) CST Curation Set: 11943; Year: 2011; Biosample/Treatment: cell line, MKN-45/untreated; Disease: gastric carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
23	Rikova K (2011) CST Curation Set: 10898; Year: 2011; Biosample/Treatment: cell line, NCI-H661/untreated; Disease: lung cancer; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[STY]) Curated Info
24	Rikova K (2011) CST Curation Set: 10916; Year: 2011; Biosample/Treatment: cell line, NCI-H2170/untreated; Disease: non-small cell squamous cell lung carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[STY]) Curated Info
25	Rikova K (2011) CST Curation Set: 10888; Year: 2011; Biosample/Treatment: cell line, Calu-3/untreated; Disease: lung cancer; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[STY]) Curated Info
26	Rikova K (2011) CST Curation Set: 10886; Year: 2011; Biosample/Treatment: cell line, NCI-H2342/untreated; Disease: non-small cell lung cancer; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[STY]) Curated Info
27	Rikova K (2011) CST Curation Set: 10904; Year: 2011; Biosample/Treatment: cell line, NCI-H226/untreated; Disease: non-small cell squamous cell lung carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[STY]) Curated Info
28	Possemato A (2010) CST Curation Set: 10873; Year: 2010; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (F/Y/M)Xp[ST](L/I/M) Curated Info
29	Possemato A (2010) CST Curation Set: 10714; Year: 2010; Biosample/Treatment: cell line, Jurkat/pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXS/T) (23C8D2) Rabbit mAb Cat#: 10001, PTMScan(R) Phospho-Akt Substrate Motif (RXRXXS/T) Immunoaffinity Beads Cat#: 1979 Curated Info
30	Possemato A (2010) CST Curation Set: 10726; Year: 2010; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXS/T) (23C8D2) Rabbit mAb Cat#: 10001, PTMScan(R) Phospho-Akt Substrate Motif (RXRXXS/T) Immunoaffinity Beads Cat#: 1979 Curated Info
31	Xiao K, et al. (2010) Global phosphorylation analysis of beta-arrestin-mediated signaling downstream of a seven transmembrane receptor (7TMR). Proc Natl Acad Sci U S A 107, 15299-304 20686112 Curated Info
32	Beausoleil S (2010) CST Curation Set: 10284; Year: 2010; Biosample/Treatment: cell line, K-562/untreated; Disease: chronic myelogenous leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
33	Beausoleil S (2010) CST Curation Set: 10280; Year: 2010; Biosample/Treatment: cell line, K-562/untreated; Disease: chronic myelogenous leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
34	Beausoleil S (2010) CST Curation Set: 10279; Year: 2010; Biosample/Treatment: cell line, K-562/untreated; Disease: chronic myelogenous leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
35	Guo A (2010) CST Curation Set: 9944; Year: 2010; Biosample/Treatment: cell line, LAN-6/NGF; Disease: neuroblastoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXS/T) (23C8D2) Rabbit mAb Cat#: 10001, PTMScan(R) Phospho-Akt Substrate Motif (RXRXXS/T) Immunoaffinity Beads Cat#: 1979 Curated Info
36	Guo A (2010) CST Curation Set: 9945; Year: 2010; Biosample/Treatment: cell line, SH-SY5Y/untreated; Disease: -; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXS/T) (23C8D2) Rabbit mAb Cat#: 10001, PTMScan(R) Phospho-Akt Substrate Motif (RXRXXS/T) Immunoaffinity Beads Cat#: 1979 Curated Info
37	Possemato A (2009) CST Curation Set: 7129; Year: 2009; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
38	Possemato A (2009) CST Curation Set: 7131; Year: 2009; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
39	Possemato A (2009) CST Curation Set: 7127; Year: 2009; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
40	Possemato A (2009) CST Curation Set: 7130; Year: 2009; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
41	Possemato A (2009) CST Curation Set: 7128; Year: 2009; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
42	Possemato A (2009) CST Curation Set: 6908; Year: 2009; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
43	Zhou J (2009) CST Curation Set: 6349; Year: 2009; Biosample/Treatment: cell line, HeLa/EGF; Disease: cervical adenocarcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXS/T) (23C8D2) Rabbit mAb Cat#: 10001, PTMScan(R) Phospho-Akt Substrate Motif (RXRXXS/T) Immunoaffinity Beads Cat#: 1979 Curated Info
44	Possemato A (2008) CST Curation Set: 5543; Year: 2008; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
45	Possemato A (2008) CST Curation Set: 5184; Year: 2008; Biosample/Treatment: cell line, K562/untreated; Disease: chronic myelogenous leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
46	Possemato A (2008) CST Curation Set: 5185; Year: 2008; Biosample/Treatment: cell line, K562/untreated; Disease: chronic myelogenous leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
47	Possemato A (2008) CST Curation Set: 5189; Year: 2008; Biosample/Treatment: cell line, K562/untreated; Disease: chronic myelogenous leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
48	Possemato A (2008) CST Curation Set: 5190; Year: 2008; Biosample/Treatment: cell line, K562/untreated; Disease: chronic myelogenous leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
49	Brummer T, et al. (2008) Phosphorylation-dependent binding of 14-3-3 terminates signalling by the Gab2 docking protein. EMBO J 27, 2305-16 19172738 Curated Info
50	Possemato A (2008) CST Curation Set: 4831; Year: 2008; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RRXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-PKA Substrate (RRXS/T) (100G7) Rabbit mAb Cat#: 9624, PTMScan(R) Phospho-PKA Substrate Motif (K/RK/RXS/T) Immunoaffinity Beads Cat#: 1984 Curated Info
51	Possemato A (2007) CST Curation Set: 3224; Year: 2007; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
52	Possemato A (2007) CST Curation Set: 3066; Year: 2007; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
53	Possemato A (2007) CST Curation Set: 3068; Year: 2007; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
54	Possemato A (2007) CST Curation Set: 2836; Year: 2007; Biosample/Treatment: cell line, K562/untreated; Disease: chronic myelogenous leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXS/T) (23C8D2) Rabbit mAb Cat#: 10001, PTMScan(R) Phospho-Akt Substrate Motif (RXRXXS/T) Immunoaffinity Beads Cat#: 1979 Curated Info
55	Moritz A (2007) CST Curation Set: 2761; Year: 2007; Biosample/Treatment: cell line, K562/-; Disease: chronic myelogenous leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RRXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-(Ser/Thr) PKA Substrate Antibody Cat#: 9621 Curated Info
56	Possemato A (2007) CST Curation Set: 2627; Year: 2007; Biosample/Treatment: cell line, K562/untreated; Disease: chronic myelogenous leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RRXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-(Ser/Thr) PKA Substrate Antibody Cat#: 9621 Curated Info