SRSF1(Serine/Arginine-rich Splicing Factor 1,富含丝氨酸/精氨酸的剪接因子1)是SR蛋白家族(Serine/Arginine-rich proteins)的核心成员,该家族以含有丝氨酸-精氨酸重复结构域(RS domain)为特征,主要参与前体mRNA的剪接调控(pre-mRNA splicing),这是基因表达中关键的一步,通过选择性剪接(alternative splicing)产生不同蛋白质亚型。SRSF1通过其RNA识别模体(RRM)结合特定RNA序列,促进剪接体的组装,从而影响mRNA的成熟过程。此外,它还参与mRNA出核运输、翻译调控及基因组稳定性维持。SRSF1的突变或异常表达会导致剪接错误,引发癌症(如乳腺癌、肺癌)、神经退行性疾病(如阿尔茨海默病)和病毒感染易感性增加。例如,SRSF1过表达会激活促癌信号通路(如PI3K-AKT),抑制凋亡,并导致剪接失衡,产生促肿瘤蛋白亚型;而低表达则可能诱发细胞周期停滞或异常DNA损伤修复。SR蛋白家族的共性包括依赖磷酸化调控其剪接活性(如SRPK激酶修饰RS结构域),并在发育、细胞分化及应激响应中发挥广泛作用。若SRSF1表达异常,还会干扰其他剪接因子(如SRSF2、hnRNPs)的功能,形成竞争性或协同性调控网络,进一步放大对基因表达的影响。
This gene encodes a member of the arginine/serine-rich splicing factor protein family. The encoded protein can either activate or repress splicing, depending on its phosphorylation state and its interaction partners. Multiple transcript variants have been found for this gene. There is a pseudogene of this gene on chromosome 13. [provided by RefSeq, Jun 2014]
该基因编码精氨酸/富丝氨酸剪接因子蛋白家族中的一员。所编码的蛋白质可以激活或抑制剪接,这取决于它的磷酸化状态和其相互作用伴侣。多个抄本变形也发现了这种基因。有13对染色体该基因的假[由RefSeq的,2014年6月提供]
SRSF1基因(以及对应的蛋白质)的细胞分布位置:
SRSF1基因的本体(GO)信息:
名称 |
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3040 Spliceosome [PATH:hsa03040] |
5168 Herpes simplex infection [PATH:hsa05168] |
名称 |
---|
Cleavage of Growing Transcript in the Termination Region |
Gene Expression |
mRNA 3'-end processing |
mRNA Splicing |
mRNA Splicing - Major Pathway |
mRNA Splicing - Minor Pathway |
Post-Elongation Processing of Intron-Containing pre-mRNA |
Post-Elongation Processing of the Transcript |
Processing of Capped Intron-Containing Pre-mRNA |
RNA Polymerase II Transcription |
RNA Polymerase II Transcription Termination |
Transcription |
Transport of Mature mRNA derived from an Intron-Containing Transcript |
Transport of Mature Transcript to Cytoplasm |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Neoplasm Metastasis | 0.120542884 | 3 | 0 | BeFree_CTD_human |
Schizophrenia | 0.12 | 1 | 0 | CTD_human |
HIV Infections | 0.12 | 1 | 0 | CTD_human |
Non-Small Cell Lung Carcinoma | 0.000814326 | 3 | 0 | BeFree |
Lung Neoplasms | 0.000814326 | 3 | 0 | BeFree |
Adenocarcinoma of lung (disorder) | 0.000542884 | 2 | 0 | BeFree |
Malignant neoplasm of breast | 0.000542884 | 2 | 0 | BeFree |
Malignant neoplasm of lung | 0.000542884 | 2 | 0 | BeFree |
Breast Carcinoma | 0.000542884 | 2 | 0 | BeFree |
Carcinoma of lung | 0.000542884 | 2 | 0 | BeFree |
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