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SAVE-THE-DATE: San Antonio Pediatric Cancer Symposium (SAPCS)

May 10, 2022

The San Antonio Pediatric Cancer Symposium (SAPCS), hosted by the Greehey Children’s Cancer Research Institute at UT Health San Antonio and in conjunction with the Mays Cancer Center, will bring together some of the most respected childhood cancer rese …


Cellular Oncology: Single-cell RNA profiling identifies diverse cellular responses to EWSR1/FLI1 down regulation in Ewing sarcoma cells (Houghton, Chen, Kitagawa, Ignatius)

January 12, 2022

Roxane Khoogar, Fuyang Li, Yidong Chen, Myron Ignatius, Elizabeth R. Lawlor, Katsumi Kitagawa, Tim H.-M. Huang, Doris A. Phelps & Peter J. Houghton Background The EWSR1/FLI1 gene fusion is the most common rearrangement leading to cell transformatio …


Please welcome the Greehey CCRI summer 2021 interns

June 7, 2021

*not all summer program students pictured                     Greehey CCRI would like to welcome the 2021 Donald G McEwen, Memorial Summer Undergraduate Research Program students. Gaby Ruban – Dr. Chen …


Frontiers in Molecular Biosciences: The Role of Human Centromeric RNA in Chromosome StabilityThe Role of Human Centromeric RNA in Chromosome Stability (Kitagawa Lab)

April 20, 2021

Introduction Accurate chromosome segregation is fundamental for cell division. Errors in this process can lead to chromosome instability, leading to aneuploidy, which is correlated with cancer (Zhu et al., 2011; Santaguida and Amon, 2015). The centrome …


Jove: Mass Spectrometry Analysis to Identify Ubiquitylation of EYFP-tagged CENP-A (EYFP-CENP-A)

June 10, 2020

Yohei Niikura*1, Lei Fang*2, Risa Kitagawa*3, Peizhao Li1, Yao Xi1, Ju You1, Yan Guo2, Katsumi Kitagawa3 Summary CENP-A ubiquitylation is an important requirement for CENP-A deposition at the centromere, inherited through dimerization between cell divi …


Katsumi Kitagawa, Pharm.D., PhD Awarded $1M NSF Grant

March 16, 2020

Overview: Centromeres are essential for chromosome segregation during mitosis. The kinetochore is the protein complex associated with the centromere. Dysfunction in centromeres causes chromosome instability and can result in aneuploidy. The overall goa …


Developmental Cell: CENP-A Ubiquitylation Is Indispensable to Cell Viability

September 23, 2019

Summary CENP-A is a centromere-specific histone H3 variant that epigenetically determines centromere identity, but how CENP-A is deposited at the centromere remains obscure. We previously reported that CENP-A K124 ubiquitylation, mediated by the CUL4A- …


MDPI: CENP-A Ubiquitylation Contributes to Maintaining the Chromosomal Location of the Centromere

January 15, 2019

Yohei Niikura 1,2,* Risa Kitagawa 1 and Katsumi Kitagawa 1,* Abstract The centromere plays an essential role in accurate chromosome segregation, and the chromosomal location of the centromere is determined by the presence of a histone H3 variant, centr …


Atlas of Science: The position of the centromere is marked with ubiquitylation of CENP-A

January 30, 2018

Chromosomes must segregate equally between daughter cells during cell division, and for proper chromosome segregation, spindle microtubules must attach to a single region of each chromosome, termed the “centromere,” in most eukaryotes. The kinetochore …


UT Health SA Newsroom: Greehey Institute begins 2018 with new faculty studying children’s cancer

January 18, 2018

The Greehey Children’s Cancer Research Institute at UT Health San Antonio is on an impressive and rising trajectory as 2018 begins. This includes the recruitment of seven new faculty members, further bolstering the Alamo City’s thriving biosciences sec …


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