TASP1

Last update 08 May 2025

Basic Info

Synonyms

C20orf13, chromosome 20 open reading frame 13, dJ585I14.2

+ [8]

Introduction

Protease responsible for KMT2A/MLL1 processing and activation (PubMed:14636557). It also activates KMT2D/MLL2 (By similarity). Through substrate activation, it controls the expression of HOXA genes, and the expression of key cell cycle regulators including CCNA1, CCNB1, CCNE1 and CDKN2A (By similarity) (PubMed:14636557).

100 Clinical Results associated with TASP1

100 Translational Medicine associated with TASP1

0 Patents (Medical) associated with TASP1

Literatures (Medical) associated with TASP1

01 Nov 2024·Theoretical and Applied Genetics

Correction to: Identification and map‑based cloning of an EMS‑induced mutation in wheat gene TaSP1 related to spike architecture

Author: Liu, Mengjie ; Fu, Xian ; Li, Suoping ; Zhou, Niuniu ; Zhang, Lin ; Zhang, Dale ; Cheng, Ruiru ; Zhou, Huidan ; Zhao, Xinpeng ; Bai, Shenglong

01 Jun 2024·Theoretical and Applied Genetics

Identification and map-based cloning of an EMS-induced mutation in wheat gene TaSP1 related to spike architecture

Article

Author: Liu, Mengjie ; Fu, Xian ; Li, Suoping ; Zhang, Lin ; Zhou, Niuniu ; Zhang, Dale ; Cheng, Ruiru ; Zhou, Huidan ; Zhao, Xinpeng ; Bai, Shenglong

KEY MESSAGEA candidate gene TaSP1 related to spike shape was cloned, and the gene-specific marker was developed to efficiently track the superior haplotype in common wheat. Spike shape, an important factor that affects wheat grain yield, is mainly defined by spike length (SPL), spikelet number (SPN), and compactness. Zhoumai32 mutant 1160 (ZM1160), a mutant obtained from ethyl methane sulfonate (EMS) treatment of hexaploid wheat variety Zhoumai32, was used to identify and clone the candidate gene that conditioned the spike shape. Genetic analysis of an F₂ population derived from a cross of ZM1160 and Bainong207 suggested that the compact spike shape in ZM1160 was controlled by a single recessive gene, and therefore, the mutated gene was designated as Tasp1. With polymorphic markers identified through bulked segregant analysis (BSA), the gene was mapped to a 2.65-cM interval flanked by markers YZU0852 and MIS46239 on chromosome 7D, corresponding to a 0.42-Mb physical interval of Chinese spring (CS) reference sequences (RefSeq v1.0). To fine map TaSP1, 15 and seven recombinants were, respectively, screened from 1599 and 1903 F₃ plants derived from the heterozygous F₂ plants. Finally, TaSP1 was delimited to a 21.9 Kb (4,870,562 to 4,892,493 bp) Xmis48123-Xmis48104 interval. Only one high-confidence gene TraesCS7D02G010200 was annotated in this region, which encodes an unknown protein with a putative vWA domain. Quantitative reverse transcription PCR (qRT-PCR) analysis showed that TraesCS7D02G010200 was mainly expressed in the spike. Haplotype analysis of 655 wheat cultivars using the candidate gene-specific marker Xg010200p2 identified a superior haplotype TaSP1b with longer spike and more spikelet number. TaSP1 is beneficial to the improvement in wheat spike shape.

01 Sep 2023·European journal of medical genetics

Long-term follow-up and novel variant in Suleiman-El-Hattab syndrome: Expanding the genotypic and clinical spectrum of a rare neurodevelopmental disorder.

Article

Author: Kayhan, Gulsum ; Sezer, Abdullah ; Percin, Ferda E

Suleiman-El-Hattab syndrome (SULEHS, OMIM #618950) is an autosomal recessive multisystem developmental disorder characterized by distinctive facial appearance, global developmental delay/intellectual disability, poor expressive speech and happy demeanor. SULEHS is an ultra-rare disorder associated with biallelic loss-of-function variants of the TASP1 gene, and up-to-date, seven patients from five families have been reported in the literature. Loss of TASP1 function has been reported to alter H3K4 histone modifications and expression of TFIIA and HOX transcription factors in the SULEHS phenotype. In this report, a new patient molecularly diagnosed with SULEHS by a novel homozygous c.404-2A > G variant in the TASP1 gene is presented with the long-term follow-up. Although the majority of the patient's clinical characteristics were similar to those of previously reported SULEHS patients, this study was the first to describe some additional anomalies, such as cystic hygroma, increased nuchal thickness, coarctation of the aorta, pulmonary stenosis, pulmonary sequestration anomaly, chronic constipation, encephalomalacia, and aggressive behavior. Because of the remarkable similarities between the clinical features of Baraitser-Winter syndrome (BRWS) and the patient, BRWS was considered the most likely diagnosis before the molecular diagnosis. Network analysis also supported that the interaction of the SULEHS-associated TASP1 gene with the BRWS-associated ACTB and ACTG1 genes through common intermediate molecules. Overall, despite the existence of differences in clinical features, inheritance patterns, and underlying pathophysiology between BRWS and SULEHS, both diseases could be considered in the differential diagnosis due to the high clinical similarities, including the dysmorphic features, growth parameters, neurodevelopmental phenotype, neurological problems, and multisystem involvement. Additionally, this report could contribute to a better understanding of the genotypic and clinical features of SULEHS by describing a novel pathogenic variant and new clinical features, such as prenatal manifestations.

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TASP1

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