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Effects of the JADE-HBO1 complex on gene expression

ABSTRACT: We find that 499 genes are up-regulated and 457 are down-regulated in response to over-expression of JADE1, while 397 genes are up-regulated and 385 are down-regulated after HBO1 knock-down.

ORGANISM(S): Homo sapiens

PROVIDER: GSE33220 | GEO | 2012/03/15

SECONDARY ACCESSION(S): PRJNA156611

REPOSITORIES: GEO

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Effects of the JADE-HBO1 complex on gene expression

Project description:We find that 499 genes are up-regulated and 457 are down-regulated in response to over-expression of JADE1, while 397 genes are up-regulated and 385 are down-regulated after HBO1 knock-down. For each condition - HBO1 siRNA treatment or JADE1 over-expression - two biological replicates were analyzed in duplicate.

2012-03-15 | E-GEOD-33220 | biostudies-arrayexpress

Genome-wide map of HBO1 in cancer derived human cell line

Project description:We used ChIP-seq technology in order to map chromatin binding sites of the HBO1 MYST complex in the RKO cell line. We obtained a significant enrichment of the HBO1 signal right after TSS regions of genes and also In the proximal promoter region, with no signal on TSS. This enrichment also correlates with gene expression level. HBO1 signal in RKO cell line.

2012-03-15 | E-GEOD-33007 | biostudies-arrayexpress

HBO1 Catalyzes Lysine Benzoylation in Mammalian Cells

Project description:Lysine benzoylation (Kbz) is a newly discovered protein post-translational modification (PTM). This PTM can be stimulated by benzoate and contributes to gene expression. However, its regulatory enzymes and substrate proteins remain largely unknown, hindering further functional studies. Here we identified and validated the lysine acetyltransferase (KAT) HBO1 as a “writer” of Kbz in mammalian cells. In addition, we report the first benzoylome in mammalian cells, identifying 1747 Kbz sites, among them at least 77 are the HBO1-targeted Kbz substrates. Bioinformatics analysis showed that HBO1-targeted Kbz sites were involved in multiple processes, including chromatin remodeling, transcription regulation, immune regulation, and tumor growth. Our results thus identify key regulatory elements of the Kbz pathway, and reveal new enzymatic activity and functions of HBO1 in cellular physiology.

2022-10-14 | PXD034187 | Pride

Histone acetylation by HBO1 activates Wnt/β-catenin signaling to promote leukemogenesis in B-cell acute lymphoblastic leukemia

Project description:To investigate the underlying mechanism by which HBO1 promotes B-ALL progression, we established NALM-6 cell lines in which HBO1 has been knocked down by shRNA. We then performed gene expression profiling analysis of NALM-6/shHBO1 cells.

2024-05-31 | GSE233678 | GEO

HBO1 catalyzes lysine lactylation and mediates histone H3K9la to regulate gene transcription

Project description:Lysine lactylation (Kla) links metabolism and gene regulation and plays a key role in multiple biological processes. However, the regulatory mechanism and functional consequence of Kla remain to be explored. Here, we report that HBO1 functions as a lysine lactyltransferase to regulate transcription. Interestingly, CUT&Tag assays demonstrate that HBO1 is required for histone H3K9la on TSSs and the regulated Kla can facilitate in signaling pathways and progress of tumorigenesis. Our study reveals HBO1 serves as a lactyltransferase to mediate a histone Kla-dependent gene transcription.

2024-01-16 | GSE239656 | GEO

Comparison of HBO1 siRNA-treated Human Umbilical Vein Endothelial Cells (HUVECs) and control siRNA-treated HUVECs

Project description:To determine the role of HBO1 in EC physiology, gene expression analysis was conducted on control and HBO1 siRNA-treated HUVECs. A total of 263 differentially regulated protein-coding transcripts were detected, many of which are key for growth and angiogenesis. Additionally, many genes involved in cell cycle, cell division, and DNA replication were dysregulated. HBO1-regulated genes were verified by qRT-PCR, including those with roles in vessel tone regulation (e.g. ACE1), vessel formation (e.g. CXCL16), EC activation (e.g. E-selectin), and cholesterol efflux (e.g. ABCG1).

2018-01-19 | GSE93608 | GEO

NUP98-HBO1-induced gene signature in human CB CD34+ cells

Project description:Chronic myelomonocytic leukemia (CMML) is an incurable hematopoietic stem cell malignancy. We identified a novel NUP98-HBO1 fusion from a patient with CMML. HBO1, a histone acetyltransferase (HAT) which belongs to the MYST family, is the first NUP98 fusion partner encodes HAT. To determine the effect of the NUP98-HBO1 fusion on downstream target gene regulation, we performed gene expression array analysis of NUP98-HBO1-transduced human cord blood (CB) CD34+ cells.

2019-03-13 | GSE112909 | GEO

SILAC experiment quantifying the proteomics of WT and HBO1-KO HeLa

Project description:Lysine lactylation (Kla) links metabolism and gene regulation and plays a key role in multiple biological processes. We report that HBO1 functions as a lysine lactyltransferase to regulate transcription. Quantitative proteomic analysis further revealsed 95 endogenous Kla sites targeted by HBO1, with the majority located on histones.

2024-04-13 | PXD051415 | Pride

Mapping BRD1 and HBO1 genomic binding in BRCA1 mutant cells

Project description:The BRCA1 tumor suppressor has many functions in DNA damage repair, DNA replication, and beyond. Loss of any of these functions can lead to breast and ovarian carcinogenesis and also therapeutic sensitivity. In this study, we have discovered a novel role for BRCA1 in controlling replication initiation by regulating the bromodomain-protein BRD1 and the histone acetyltransferase HBO1. Specifically, we show that BRCA1 regulates localization of the BRD1-HBO1 complex to replication origins where the complex normally acetylates histone H3 on lysine 14. We performed chromatin-immunoprecipitation seqeuncing (ChIP-seq) for BRD1 and HBO1 in a BRCA1 mutant line (UWB1.289) and demonstrate that BRD1 and HBO1 co-occupy ORC2 binding sites and replication origins.

2024-01-11 | GSE244027 | GEO

Expression data from human subcutaneous adipocytes

Project description:An Affimetrix GeneChip Human Genome U133 Plus 2.0 Array was used to study the effect of oleoylethnolamide on gene expression. The addition of 0.01 mM oleoylethanolamide (OEA) to human subcutaneous adipocytes significantly affected the expression of 1013 genes, with 556 being up-regulated and 457 being down-regulated.

2014-11-04 | GSE55539 | GEO

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