RSU1

Last update 08 May 2025

Basic Info

Synonyms

FLJ31034, Ras suppressor protein 1, RSP-1

+ [3]

Introduction

Potentially plays a role in the Ras signal transduction pathway. Capable of suppressing v-Ras transformation in vitro.

100 Clinical Results associated with RSU1

100 Translational Medicine associated with RSU1

0 Patents (Medical) associated with RSU1

116

Literatures (Medical) associated with RSU1

03 Jan 2025·Science Advances

Klp2-mediated Rsp1-Mto1 colocalization inhibits microtubule-dependent microtubule assembly in fission yeast

Article

Author: Yao, Xuebiao ; Nie, Lingyun ; Liang, Zhuobi ; Zheng, Fan ; Liu, Wenyue ; Fu, Chuanhai ; Liu, Xing ; Zheng, Shengnan ; Jiang, Kai ; Xiang, Shengqi

Microtubule assembly takes place at the centrosome and noncentrosomal microtubule–organizing centers (MTOCs). However, the mechanisms controlling the activity of noncentrosomal MTOCs are poorly understood. Here, using the fission yeast Schizosaccharomyces pombe as a model organism, we demonstrate that the kinesin-14 motor Klp2 interacts with the J-domain Hsp70/Ssa1 cochaperone Rsp1, an inhibitory factor of microtubule assembly, and that Klp2 is required for the proper localization of Rsp1 to microtubules. In addition, we demonstrate that Klp2 is not required for the localization of Mto1, a factor promoting microtubule assembly, to microtubules. Moreover, Rsp1-Ssa1 inhibits the interaction of Mto1-Mto2 with the gamma-tubulin small complex. The absence of Klp2 reduces the colocalization of Rsp1 and Mto1 foci on preexisting microtubules, resulting in an increased microtubule-dependent microtubule assembly. Our results suggest that Klp2 regulates the activity of noncentrosomal MTOCs by targeting Rsp1 to the sites of Mto1 activity and reveal a mechanism for the inhibition of noncentrosomal microtubule assembly by a kinesin-14 motor.

01 Jun 2024·iScience

RSU-1 regulates the integrity of dense bodies in muscle cells of aging Caenorhabditis elegans

Article

Author: Tse, Yu Chung ; Zhang, Dandan ; Jiang, Ling ; Wang, Xinyan ; Yee Yuen, Karen Wing

Muscle contraction is vital for animal survival, and the sarcomere is the fundamental unit for this process. However, the functions of many conserved sarcomere proteins remain unknown, as their mutants do not exhibit obvious defects. To address this, Caenorhabditis elegans was utilized as a model organism to investigate RSU-1 function in the body wall muscle. RSU-1 is found to colocalize with UNC-97 at the dense body and M-line, and it is particularly crucial for regulating locomotion in aging worms, rather than in young worms. This suggests that RSU-1 has a specific function in maintaining muscle function during aging. Furthermore, the interaction between RSU-1 and UNC-97/PINCH is essential for RSU-1 to modulate locomotion, preserve filament structure, and sustain the M-line and dense body throughout aging. Overall, these findings highlight the significant contribution of RSU-1, through its interaction with UNC-97, in maintaining proper muscle cell function in aging worms.

01 Mar 2024·Mammalian Genome

Identification of genetic variants affecting reproduction traits in Vrindavani cattle

Article

Author: Kumar, Subodh ; Anitta, P L ; Singh, Akansha ; Agrawal, Swati ; Ahmad, Sheikh Firdous ; Gangwar, Munish ; Kumar, Amit

Genome-wide association studies (GWAS) are one of the best ways to look into the connection between single-nucleotide polymorphisms (SNPs) and the phenotypic performance. This study aimed to identify the genetic variants that significantly affect the important reproduction traits in Vrindavani cattle using genome-wide SNP chip array data. In this study, 96 randomly chosen Vrindavani cows were genotyped using the Illumina Bovine50K BeadChip platform. A linear regression model of the genome-wide association study was fitted in the PLINK program between genome-wide SNP markers and reproduction traits, including age at first calving (AFC), inter-calving period (ICP), dry days (DD), and service period (SP) across the first three lactations. Information on different QTLs and genes, overlapping or adjacent to genomic coordinates of significant SNPs, was also mined from relevant databases in order to identify the biological pathways associated with reproductive traits in bovine. The Bonferroni correction resulted in total 39 SNP markers present on different chromosomes being identified that significantly affected the variation in AFC (6 SNPs), ICP (7 SNPs), DD (9 SNPs), and SP (17 SNPs). Novel potential candidate genes associated with reproductive traits that were identified using the GWAS methodology included UMPS, ITGB5, ADAM2, UPK1B, TEX55, bta-mir-708, TMPO, TDRD5, MAPRE2, PTER, AP3B1, DPP8, PLAT, TXN2, NDUFAF1, TGFA, DTNA, RSU1, KCNQ1, ADAM32, and CHST8. The significant SNPs and genes associated with the reproductive traits and the enriched genes may be exploited as candidate biomarkers in animal improvement programs, especially for improved reproduction performance in bovines.

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RSU1

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