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anti lmo2  (Santa Cruz Biotechnology)


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    Structured Review

    Santa Cruz Biotechnology anti lmo2
    The LDB1 complex containing <t>LMO2</t> and GATA1 directly enhances the transcription of the Bcl11a gene. ( A-E ) ChIP-qPCR assays were performed to assess the occupancy of putative LDB1 complex component proteins, including LDB1, LMO2, GATA1, TAL1, and E2A, at the Bcl11a locus in E14.5 WT and KO FLCs. n = 3. Control, isotype control Ab; LDB1, anti-LDB1 Ab; <t>LMO2,</t> <t>anti-LMO2</t> Ab; GATA1, anti-GATA1 Ab; TAL1, anti-TAL1 Ab, E2A, anti-E2A Ab; WT, E14.5 FLCs; KO, E14.5 KO FLCs. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b ) differ significantly at P < 0.05. ( F and G ) Dual-luciferase reporter assays were performed using the 210 bp region covering primer #3 ( Bcl11a intron #3) or the 225 bp region covering primer #4 ( Bcl11a intron #4) at Bcl11a locus. The relative luciferase activity of each construct containing either Bcl11a intron #3 or Bcl11a intron #4 was measured in HEK293T cells transfected with the indicated combination of each expression vector encoding Ldb1 , Lmo2 , or Gata1 cDNA. The schematic diagrams of each cloned enhancer region ( F ) and the results of the luciferase reporter assays ( G ) are presented. Ldb1 , expression vector encoding Ldb1 cDNA; Lmo2 , expression vector encoding Lmo2 cDNA; Gata1 , expression vector encoding Gata1 cDNA; ◯, transfected cells; ☓, untransfected cells. n = 5. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b, c ) differ significantly at P < 0.05. ( H and I ) ChIP-qPCR assays were performed to assess LDB1 occupancy at the human BCL11A locus in K562 cells. The locations of each indicated primer set within the BCL11A locus are shown in the schematic diagram ( H ) along with the corresponding ChIP-qPCR results ( I ). n = 3. Mock K562, empty vector transfected K562 cells; KO K562, human LDB1 knockout K562 cells; Control, isotype control Ab; LDB1, anti-LDB1 Ab. Statistical significance was assessed by two-tailed Student's t -test. ∗ P < 0.05. All data are presented as the mean ± SEM.
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    1) Product Images from "LDB1 represses fetal hemoglobin expression by enhancing BCL11A transcription"

    Article Title: LDB1 represses fetal hemoglobin expression by enhancing BCL11A transcription

    Journal: Redox Biology

    doi: 10.1016/j.redox.2026.104070

    The LDB1 complex containing LMO2 and GATA1 directly enhances the transcription of the Bcl11a gene. ( A-E ) ChIP-qPCR assays were performed to assess the occupancy of putative LDB1 complex component proteins, including LDB1, LMO2, GATA1, TAL1, and E2A, at the Bcl11a locus in E14.5 WT and KO FLCs. n = 3. Control, isotype control Ab; LDB1, anti-LDB1 Ab; LMO2, anti-LMO2 Ab; GATA1, anti-GATA1 Ab; TAL1, anti-TAL1 Ab, E2A, anti-E2A Ab; WT, E14.5 FLCs; KO, E14.5 KO FLCs. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b ) differ significantly at P < 0.05. ( F and G ) Dual-luciferase reporter assays were performed using the 210 bp region covering primer #3 ( Bcl11a intron #3) or the 225 bp region covering primer #4 ( Bcl11a intron #4) at Bcl11a locus. The relative luciferase activity of each construct containing either Bcl11a intron #3 or Bcl11a intron #4 was measured in HEK293T cells transfected with the indicated combination of each expression vector encoding Ldb1 , Lmo2 , or Gata1 cDNA. The schematic diagrams of each cloned enhancer region ( F ) and the results of the luciferase reporter assays ( G ) are presented. Ldb1 , expression vector encoding Ldb1 cDNA; Lmo2 , expression vector encoding Lmo2 cDNA; Gata1 , expression vector encoding Gata1 cDNA; ◯, transfected cells; ☓, untransfected cells. n = 5. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b, c ) differ significantly at P < 0.05. ( H and I ) ChIP-qPCR assays were performed to assess LDB1 occupancy at the human BCL11A locus in K562 cells. The locations of each indicated primer set within the BCL11A locus are shown in the schematic diagram ( H ) along with the corresponding ChIP-qPCR results ( I ). n = 3. Mock K562, empty vector transfected K562 cells; KO K562, human LDB1 knockout K562 cells; Control, isotype control Ab; LDB1, anti-LDB1 Ab. Statistical significance was assessed by two-tailed Student's t -test. ∗ P < 0.05. All data are presented as the mean ± SEM.
    Figure Legend Snippet: The LDB1 complex containing LMO2 and GATA1 directly enhances the transcription of the Bcl11a gene. ( A-E ) ChIP-qPCR assays were performed to assess the occupancy of putative LDB1 complex component proteins, including LDB1, LMO2, GATA1, TAL1, and E2A, at the Bcl11a locus in E14.5 WT and KO FLCs. n = 3. Control, isotype control Ab; LDB1, anti-LDB1 Ab; LMO2, anti-LMO2 Ab; GATA1, anti-GATA1 Ab; TAL1, anti-TAL1 Ab, E2A, anti-E2A Ab; WT, E14.5 FLCs; KO, E14.5 KO FLCs. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b ) differ significantly at P < 0.05. ( F and G ) Dual-luciferase reporter assays were performed using the 210 bp region covering primer #3 ( Bcl11a intron #3) or the 225 bp region covering primer #4 ( Bcl11a intron #4) at Bcl11a locus. The relative luciferase activity of each construct containing either Bcl11a intron #3 or Bcl11a intron #4 was measured in HEK293T cells transfected with the indicated combination of each expression vector encoding Ldb1 , Lmo2 , or Gata1 cDNA. The schematic diagrams of each cloned enhancer region ( F ) and the results of the luciferase reporter assays ( G ) are presented. Ldb1 , expression vector encoding Ldb1 cDNA; Lmo2 , expression vector encoding Lmo2 cDNA; Gata1 , expression vector encoding Gata1 cDNA; ◯, transfected cells; ☓, untransfected cells. n = 5. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b, c ) differ significantly at P < 0.05. ( H and I ) ChIP-qPCR assays were performed to assess LDB1 occupancy at the human BCL11A locus in K562 cells. The locations of each indicated primer set within the BCL11A locus are shown in the schematic diagram ( H ) along with the corresponding ChIP-qPCR results ( I ). n = 3. Mock K562, empty vector transfected K562 cells; KO K562, human LDB1 knockout K562 cells; Control, isotype control Ab; LDB1, anti-LDB1 Ab. Statistical significance was assessed by two-tailed Student's t -test. ∗ P < 0.05. All data are presented as the mean ± SEM.

    Techniques Used: ChIP-qPCR, Control, Luciferase, Activity Assay, Construct, Transfection, Expressing, Plasmid Preparation, Clone Assay, Knock-Out, Two Tailed Test

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    Incubation:

    Article Title: RUNX1 is required for oncogenic Myb and Myc enhancer activity in T-cell acute lymphoblastic leukemia
    Article Snippet: 29 Mouse T-ALL cells treated with ethanol or 10 nM 4-OHT were lysed, and nuclei were fragmented to a size of 150–300 bp by using Bioruptor (Diagenode). .. Fragmented chromatin was incubated overnight at 4°C with normal immunoglobulin G (sc-2027, Santa Cruz Biotechnology) or anti-TAL1 (C-21, Santa Cruz Biotechnology), anti-RUNX1 (ab23980, Abcam), anti-RUNX3 (9647, Cell Signaling Technology), anti-NOTCH1 (C-20, Santa Cruz Biotechnology), anti-Histone 3 (ab1791, Abcam), or anti-H2K27ac (ab4729, Abcam). .. Chromatin-antibody complexes were pulled down by incubating with magnetic beads (Dynal) for 4 hours.

    Article Title: FBXO32 activates the PI3K/AKT pathway by inhibiting PTEN through ubiquitination of TAL1 in hepatocellular carcinoma.
    Article Snippet: This is a PDF of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability.. This version will undergo additional copyediting, typesetting and review before it is published in its final form.. As such, this version is no longer the Accepted Manuscript, but it is not yet the definitive Version of Record; we are providing this early version to give early visibility of the article.

    Article Title: LDB2 regulates the expression of DLL4 through the formation of oligomeric complexes in endothelial cells
    Article Snippet: .. After centrifugation, the cleared supernatant was incubated with anti-TAL1 (Santa Cruz), anti-GATA2 (Santa Cruz), anti-FLAG (Sigma), and IgG for immunoprecipitation. ..

    other:

    Article Title: An enhancer RNA recruits KMT2A to regulate transcription of Myb
    Article Snippet: anti-TAL1 , Santa Cruz , Cat# sc12984; RRID:AB_2199699.

    Immunoprecipitation:

    Article Title: LDB1 represses fetal hemoglobin expression by enhancing BCL11A transcription.
    Article Snippet: .. Sheared chromatin was immunoprecipitated using 2 μg of the following Abs per sample: anti-LDB1 (Santa Cruz Biotechnology sc-365074) and its isotype control (R&D Systems MAB004), anti-GATA1 (Santa Cruz Biotechnology sc-265) and its isotype control (Santa Cruz Biotechnology, Inc. sc-3883), anti-TAL1 (Santa Cruz Biotechnology sc-393287), anti-LMO2 (Santa Cruz Biotechnology sc-65736), anti-E2A (Santa Cruz Biotechnology sc-416) and their isotype control (Thermo Fisher Scientific 14-4714-85). .. Immune complexes were then collected with protein A sepharose (Sigma-Aldrich GE17-5280-01) or protein G sepharose (Sigma-Aldrich GE17-0618-01) and extracted with an extraction buffer containing 1% SDS (Sigma-Aldrich L4509-500G) and 100 mM NaHCO3 (Sigma-Aldrich S5761-500G).

    Article Title: FBXO32 activates the PI3K/AKT pathway by inhibiting PTEN through ubiquitination of TAL1 in hepatocellular carcinoma.
    Article Snippet: This is a PDF of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability.. This version will undergo additional copyediting, typesetting and review before it is published in its final form.. As such, this version is no longer the Accepted Manuscript, but it is not yet the definitive Version of Record; we are providing this early version to give early visibility of the article.

    Article Title: LDB2 regulates the expression of DLL4 through the formation of oligomeric complexes in endothelial cells
    Article Snippet: .. After centrifugation, the cleared supernatant was incubated with anti-TAL1 (Santa Cruz), anti-GATA2 (Santa Cruz), anti-FLAG (Sigma), and IgG for immunoprecipitation. ..

    Article Title: LDB1 represses fetal hemoglobin expression by enhancing BCL11A transcription
    Article Snippet: .. Sheared chromatin was immunoprecipitated using 2 μg of the following Abs per sample: anti-LDB1 (Santa Cruz Biotechnology sc-365074) and its isotype control (R&D Systems MAB004), anti-GATA1 (Santa Cruz Biotechnology sc-265) and its isotype control (Santa Cruz Biotechnology, Inc. sc-3883), anti-TAL1 (Santa Cruz Biotechnology sc-393287), anti-LMO2 (Santa Cruz Biotechnology sc-65736), anti-E2A (Santa Cruz Biotechnology sc-416) and their isotype control (Thermo Fisher Scientific 14-4714-85). .. Immune complexes were then collected with protein A sepharose (Sigma-Aldrich GE17-5280-01) or protein G sepharose (Sigma-Aldrich GE17-0618-01) and extracted with an extraction buffer containing 1% SDS (Sigma-Aldrich L4509-500G) and 100 mM NaHCO 3 (Sigma-Aldrich S5761-500G).

    Control:

    Article Title: LDB1 represses fetal hemoglobin expression by enhancing BCL11A transcription.
    Article Snippet: .. Sheared chromatin was immunoprecipitated using 2 μg of the following Abs per sample: anti-LDB1 (Santa Cruz Biotechnology sc-365074) and its isotype control (R&D Systems MAB004), anti-GATA1 (Santa Cruz Biotechnology sc-265) and its isotype control (Santa Cruz Biotechnology, Inc. sc-3883), anti-TAL1 (Santa Cruz Biotechnology sc-393287), anti-LMO2 (Santa Cruz Biotechnology sc-65736), anti-E2A (Santa Cruz Biotechnology sc-416) and their isotype control (Thermo Fisher Scientific 14-4714-85). .. Immune complexes were then collected with protein A sepharose (Sigma-Aldrich GE17-5280-01) or protein G sepharose (Sigma-Aldrich GE17-0618-01) and extracted with an extraction buffer containing 1% SDS (Sigma-Aldrich L4509-500G) and 100 mM NaHCO3 (Sigma-Aldrich S5761-500G).

    Article Title: LDB1 represses fetal hemoglobin expression by enhancing BCL11A transcription
    Article Snippet: .. Sheared chromatin was immunoprecipitated using 2 μg of the following Abs per sample: anti-LDB1 (Santa Cruz Biotechnology sc-365074) and its isotype control (R&D Systems MAB004), anti-GATA1 (Santa Cruz Biotechnology sc-265) and its isotype control (Santa Cruz Biotechnology, Inc. sc-3883), anti-TAL1 (Santa Cruz Biotechnology sc-393287), anti-LMO2 (Santa Cruz Biotechnology sc-65736), anti-E2A (Santa Cruz Biotechnology sc-416) and their isotype control (Thermo Fisher Scientific 14-4714-85). .. Immune complexes were then collected with protein A sepharose (Sigma-Aldrich GE17-5280-01) or protein G sepharose (Sigma-Aldrich GE17-0618-01) and extracted with an extraction buffer containing 1% SDS (Sigma-Aldrich L4509-500G) and 100 mM NaHCO 3 (Sigma-Aldrich S5761-500G).

    Centrifugation:

    Article Title: LDB2 regulates the expression of DLL4 through the formation of oligomeric complexes in endothelial cells
    Article Snippet: .. After centrifugation, the cleared supernatant was incubated with anti-TAL1 (Santa Cruz), anti-GATA2 (Santa Cruz), anti-FLAG (Sigma), and IgG for immunoprecipitation. ..



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    94
    Proteintech tal1 scl
    The LDB1 complex containing LMO2 and GATA1 directly enhances the transcription of the Bcl11a gene. ( A-E ) ChIP-qPCR assays were performed to assess the occupancy of putative LDB1 complex component proteins, including LDB1, LMO2, GATA1, <t>TAL1,</t> and E2A, at the Bcl11a locus in E14.5 WT and KO FLCs. n = 3. Control, isotype control Ab; LDB1, anti-LDB1 Ab; LMO2, anti-LMO2 Ab; GATA1, anti-GATA1 Ab; <t>TAL1,</t> <t>anti-TAL1</t> Ab, E2A, anti-E2A Ab; WT, E14.5 FLCs; KO, E14.5 KO FLCs. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b ) differ significantly at P < 0.05. ( F and G ) Dual-luciferase reporter assays were performed using the 210 bp region covering primer #3 ( Bcl11a intron #3) or the 225 bp region covering primer #4 ( Bcl11a intron #4) at Bcl11a locus. The relative luciferase activity of each construct containing either Bcl11a intron #3 or Bcl11a intron #4 was measured in HEK293T cells transfected with the indicated combination of each expression vector encoding Ldb1 , Lmo2 , or Gata1 cDNA. The schematic diagrams of each cloned enhancer region ( F ) and the results of the luciferase reporter assays ( G ) are presented. Ldb1 , expression vector encoding Ldb1 cDNA; Lmo2 , expression vector encoding Lmo2 cDNA; Gata1 , expression vector encoding Gata1 cDNA; ◯, transfected cells; ☓, untransfected cells. n = 5. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b, c ) differ significantly at P < 0.05. ( H and I ) ChIP-qPCR assays were performed to assess LDB1 occupancy at the human BCL11A locus in K562 cells. The locations of each indicated primer set within the BCL11A locus are shown in the schematic diagram ( H ) along with the corresponding ChIP-qPCR results ( I ). n = 3. Mock K562, empty vector transfected K562 cells; KO K562, human LDB1 knockout K562 cells; Control, isotype control Ab; LDB1, anti-LDB1 Ab. Statistical significance was assessed by two-tailed Student's t -test. ∗ P < 0.05. All data are presented as the mean ± SEM.
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    The LDB1 complex containing LMO2 and GATA1 directly enhances the transcription of the Bcl11a gene. ( A-E ) ChIP-qPCR assays were performed to assess the occupancy of putative LDB1 complex component proteins, including LDB1, LMO2, GATA1, TAL1, and E2A, at the Bcl11a locus in E14.5 WT and KO FLCs. n = 3. Control, isotype control Ab; LDB1, anti-LDB1 Ab; LMO2, anti-LMO2 Ab; GATA1, anti-GATA1 Ab; TAL1, anti-TAL1 Ab, E2A, anti-E2A Ab; WT, E14.5 FLCs; KO, E14.5 KO FLCs. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b ) differ significantly at P < 0.05. ( F and G ) Dual-luciferase reporter assays were performed using the 210 bp region covering primer #3 ( Bcl11a intron #3) or the 225 bp region covering primer #4 ( Bcl11a intron #4) at Bcl11a locus. The relative luciferase activity of each construct containing either Bcl11a intron #3 or Bcl11a intron #4 was measured in HEK293T cells transfected with the indicated combination of each expression vector encoding Ldb1 , Lmo2 , or Gata1 cDNA. The schematic diagrams of each cloned enhancer region ( F ) and the results of the luciferase reporter assays ( G ) are presented. Ldb1 , expression vector encoding Ldb1 cDNA; Lmo2 , expression vector encoding Lmo2 cDNA; Gata1 , expression vector encoding Gata1 cDNA; ◯, transfected cells; ☓, untransfected cells. n = 5. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b, c ) differ significantly at P < 0.05. ( H and I ) ChIP-qPCR assays were performed to assess LDB1 occupancy at the human BCL11A locus in K562 cells. The locations of each indicated primer set within the BCL11A locus are shown in the schematic diagram ( H ) along with the corresponding ChIP-qPCR results ( I ). n = 3. Mock K562, empty vector transfected K562 cells; KO K562, human LDB1 knockout K562 cells; Control, isotype control Ab; LDB1, anti-LDB1 Ab. Statistical significance was assessed by two-tailed Student's t -test. ∗ P < 0.05. All data are presented as the mean ± SEM.

    Journal: Redox Biology

    Article Title: LDB1 represses fetal hemoglobin expression by enhancing BCL11A transcription

    doi: 10.1016/j.redox.2026.104070

    Figure Lengend Snippet: The LDB1 complex containing LMO2 and GATA1 directly enhances the transcription of the Bcl11a gene. ( A-E ) ChIP-qPCR assays were performed to assess the occupancy of putative LDB1 complex component proteins, including LDB1, LMO2, GATA1, TAL1, and E2A, at the Bcl11a locus in E14.5 WT and KO FLCs. n = 3. Control, isotype control Ab; LDB1, anti-LDB1 Ab; LMO2, anti-LMO2 Ab; GATA1, anti-GATA1 Ab; TAL1, anti-TAL1 Ab, E2A, anti-E2A Ab; WT, E14.5 FLCs; KO, E14.5 KO FLCs. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b ) differ significantly at P < 0.05. ( F and G ) Dual-luciferase reporter assays were performed using the 210 bp region covering primer #3 ( Bcl11a intron #3) or the 225 bp region covering primer #4 ( Bcl11a intron #4) at Bcl11a locus. The relative luciferase activity of each construct containing either Bcl11a intron #3 or Bcl11a intron #4 was measured in HEK293T cells transfected with the indicated combination of each expression vector encoding Ldb1 , Lmo2 , or Gata1 cDNA. The schematic diagrams of each cloned enhancer region ( F ) and the results of the luciferase reporter assays ( G ) are presented. Ldb1 , expression vector encoding Ldb1 cDNA; Lmo2 , expression vector encoding Lmo2 cDNA; Gata1 , expression vector encoding Gata1 cDNA; ◯, transfected cells; ☓, untransfected cells. n = 5. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b, c ) differ significantly at P < 0.05. ( H and I ) ChIP-qPCR assays were performed to assess LDB1 occupancy at the human BCL11A locus in K562 cells. The locations of each indicated primer set within the BCL11A locus are shown in the schematic diagram ( H ) along with the corresponding ChIP-qPCR results ( I ). n = 3. Mock K562, empty vector transfected K562 cells; KO K562, human LDB1 knockout K562 cells; Control, isotype control Ab; LDB1, anti-LDB1 Ab. Statistical significance was assessed by two-tailed Student's t -test. ∗ P < 0.05. All data are presented as the mean ± SEM.

    Article Snippet: Sheared chromatin was immunoprecipitated using 2 μg of the following Abs per sample: anti-LDB1 (Santa Cruz Biotechnology sc-365074) and its isotype control (R&D Systems MAB004), anti-GATA1 (Santa Cruz Biotechnology sc-265) and its isotype control (Santa Cruz Biotechnology, Inc. sc-3883), anti-TAL1 (Santa Cruz Biotechnology sc-393287), anti-LMO2 (Santa Cruz Biotechnology sc-65736), anti-E2A (Santa Cruz Biotechnology sc-416) and their isotype control (Thermo Fisher Scientific 14-4714-85).

    Techniques: ChIP-qPCR, Control, Luciferase, Activity Assay, Construct, Transfection, Expressing, Plasmid Preparation, Clone Assay, Knock-Out, Two Tailed Test

    The LDB1 complex containing LMO2 and GATA1 directly enhances the transcription of the Bcl11a gene. ( A-E ) ChIP-qPCR assays were performed to assess the occupancy of putative LDB1 complex component proteins, including LDB1, LMO2, GATA1, TAL1, and E2A, at the Bcl11a locus in E14.5 WT and KO FLCs. n = 3. Control, isotype control Ab; LDB1, anti-LDB1 Ab; LMO2, anti-LMO2 Ab; GATA1, anti-GATA1 Ab; TAL1, anti-TAL1 Ab, E2A, anti-E2A Ab; WT, E14.5 FLCs; KO, E14.5 KO FLCs. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b ) differ significantly at P < 0.05. ( F and G ) Dual-luciferase reporter assays were performed using the 210 bp region covering primer #3 ( Bcl11a intron #3) or the 225 bp region covering primer #4 ( Bcl11a intron #4) at Bcl11a locus. The relative luciferase activity of each construct containing either Bcl11a intron #3 or Bcl11a intron #4 was measured in HEK293T cells transfected with the indicated combination of each expression vector encoding Ldb1 , Lmo2 , or Gata1 cDNA. The schematic diagrams of each cloned enhancer region ( F ) and the results of the luciferase reporter assays ( G ) are presented. Ldb1 , expression vector encoding Ldb1 cDNA; Lmo2 , expression vector encoding Lmo2 cDNA; Gata1 , expression vector encoding Gata1 cDNA; ◯, transfected cells; ☓, untransfected cells. n = 5. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b, c ) differ significantly at P < 0.05. ( H and I ) ChIP-qPCR assays were performed to assess LDB1 occupancy at the human BCL11A locus in K562 cells. The locations of each indicated primer set within the BCL11A locus are shown in the schematic diagram ( H ) along with the corresponding ChIP-qPCR results ( I ). n = 3. Mock K562, empty vector transfected K562 cells; KO K562, human LDB1 knockout K562 cells; Control, isotype control Ab; LDB1, anti-LDB1 Ab. Statistical significance was assessed by two-tailed Student's t -test. ∗ P < 0.05. All data are presented as the mean ± SEM.

    Journal: Redox Biology

    Article Title: LDB1 represses fetal hemoglobin expression by enhancing BCL11A transcription

    doi: 10.1016/j.redox.2026.104070

    Figure Lengend Snippet: The LDB1 complex containing LMO2 and GATA1 directly enhances the transcription of the Bcl11a gene. ( A-E ) ChIP-qPCR assays were performed to assess the occupancy of putative LDB1 complex component proteins, including LDB1, LMO2, GATA1, TAL1, and E2A, at the Bcl11a locus in E14.5 WT and KO FLCs. n = 3. Control, isotype control Ab; LDB1, anti-LDB1 Ab; LMO2, anti-LMO2 Ab; GATA1, anti-GATA1 Ab; TAL1, anti-TAL1 Ab, E2A, anti-E2A Ab; WT, E14.5 FLCs; KO, E14.5 KO FLCs. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b ) differ significantly at P < 0.05. ( F and G ) Dual-luciferase reporter assays were performed using the 210 bp region covering primer #3 ( Bcl11a intron #3) or the 225 bp region covering primer #4 ( Bcl11a intron #4) at Bcl11a locus. The relative luciferase activity of each construct containing either Bcl11a intron #3 or Bcl11a intron #4 was measured in HEK293T cells transfected with the indicated combination of each expression vector encoding Ldb1 , Lmo2 , or Gata1 cDNA. The schematic diagrams of each cloned enhancer region ( F ) and the results of the luciferase reporter assays ( G ) are presented. Ldb1 , expression vector encoding Ldb1 cDNA; Lmo2 , expression vector encoding Lmo2 cDNA; Gata1 , expression vector encoding Gata1 cDNA; ◯, transfected cells; ☓, untransfected cells. n = 5. Statistical significance was assessed by one-way ANOVA with Tukey HSD analysis. Mean values not sharing the same superscript letter ( a, b, c ) differ significantly at P < 0.05. ( H and I ) ChIP-qPCR assays were performed to assess LDB1 occupancy at the human BCL11A locus in K562 cells. The locations of each indicated primer set within the BCL11A locus are shown in the schematic diagram ( H ) along with the corresponding ChIP-qPCR results ( I ). n = 3. Mock K562, empty vector transfected K562 cells; KO K562, human LDB1 knockout K562 cells; Control, isotype control Ab; LDB1, anti-LDB1 Ab. Statistical significance was assessed by two-tailed Student's t -test. ∗ P < 0.05. All data are presented as the mean ± SEM.

    Article Snippet: Sheared chromatin was immunoprecipitated using 2 μg of the following Abs per sample: anti-LDB1 (Santa Cruz Biotechnology sc-365074) and its isotype control (R&D Systems MAB004), anti-GATA1 (Santa Cruz Biotechnology sc-265) and its isotype control (Santa Cruz Biotechnology, Inc. sc-3883), anti-TAL1 (Santa Cruz Biotechnology sc-393287), anti-LMO2 (Santa Cruz Biotechnology sc-65736), anti-E2A (Santa Cruz Biotechnology sc-416) and their isotype control (Thermo Fisher Scientific 14-4714-85).

    Techniques: ChIP-qPCR, Control, Luciferase, Activity Assay, Construct, Transfection, Expressing, Plasmid Preparation, Clone Assay, Knock-Out, Two Tailed Test