PIKFYVE基因|基因功能、疾病关联、突变与基因编辑研究

PIKFYVE是磷脂酰肌醇代谢的关键激酶,调控内体运输与自噬,与神经退行性疾病和癌症相关。

基因信息卡

基因符号 PIKFYVE
基因全名 phosphoinositide kinase, FYVE-type zinc finger containing
基因类型 蛋白编码基因
染色体位置 2q34
NCBI Gene ID 200576 ncbi.nlm.nih.gov/gene/200576
Ensembl ID ENSG00000143442
UniProt ID Q9Y2I7
OMIM ID 609414
HGNC ID 23785
基因别名 CFC1, PIP5K, FYVE, MGC40405

基因功能与研究简介

PIKFYVE基因编码一种含FYVE锌指结构域的磷脂酰肌醇激酶,主要催化磷脂酰肌醇3-磷酸(PI3P)转化为磷脂酰肌醇3,5-二磷酸(PI(3,5)P2)。该酶在内体运输、自噬、细胞信号传导等过程中发挥关键作用。PIKFYVE功能异常与多种疾病相关,包括神经退行性疾病和癌症。

疾病关联

疾病类别 疾病生理机制 基因组证据
肌萎缩侧索硬化症(ALS) PIKFYVE突变可能导致内体运输障碍,影响神经元存活,与ALS发病相关。 较强研究证据
额颞叶痴呆(FTD) PIKFYVE突变可能通过影响自噬和蛋白质稳态,参与FTD的病理过程。 较强研究证据
肝细胞癌 PIKFYVE在肝癌中表达上调,可能通过促进细胞增殖和迁移参与肿瘤发生。 癌症相关
帕金森病 PIKFYVE活性异常可能影响多巴胺能神经元的功能,与帕金森病存在潜在关联。 潜在关联

表达谱

组织表达
组织 nTPM 级别
暂无可靠数据 高表达
暂无可靠数据 中等表达
暂无可靠数据 中等表达
暂无可靠数据 中等表达
细胞系表达
细胞系 nTPM 笔记
HeLa 暂无可靠数据 宫颈癌细胞系
HEK293 暂无可靠数据 胚胎肾细胞系
SH-SY5Y 暂无可靠数据 神经母细胞瘤细胞系
数据来源:Human Protein Atlas(proteinatlas.org)

突变与遗传变异

Hotspot Mutations
变体 类型 频率 功能描述
p.Ile318Thr 错义突变 罕见 可能影响激酶活性
p.Arg183Trp 错义突变 罕见 可能影响蛋白稳定性
p.Gln626* 无义突变 罕见 导致截短蛋白,功能丧失
突变功能分类

Loss of Function(功能缺失,LOF)

功能丧失型突变,导致PIKFYVE激酶活性降低或缺失,影响内体运输和自噬。

Gain of Function(功能获得,GOF)

功能获得型突变,增强PIKFYVE活性,可能促进细胞增殖,与癌症相关。

Dominant Negative(显性负效应,DN)

显性负性突变,突变蛋白干扰野生型PIKFYVE的功能,导致细胞功能障碍。

基因本体论 (Gene Ontology)

• GO:0000166 • GO:0005524
• GO:0016303 • GO:0016310
• GO:0032049 • GO:0036094
• GO:0046854 • GO:0005768
• GO:0005769 • GO:0005770
• GO:0005829 • GO:0005886
• GO:0010008 • GO:0031901
• GO:0031902 • GO:0043231
• GO:0006914 • GO:0010506
• GO:0032456 • GO:0042147
• GO:0006897 • GO:0006898
• GO:0016192 • GO:0032456
• GO:0042147 • GO:0006897
• GO:0006898 • GO:0016192

相关通路

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蛋白质功能简介

PIKFYVE蛋白是一种含有FYVE锌指结构域的磷脂酰肌醇激酶,主要催化PI3P磷酸化为PI(3,5)P2。该蛋白定位于内体膜,参与内体运输、自噬、细胞信号传导等过程。其活性异常与神经退行性疾病和癌症相关。

相关产品

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PIKFYVE基因敲除HEK293细胞 EDJ-KQ1660 200576 详情 立即询价
PIKFYVE基因敲除SRA01/04细胞 EDJ-KQ66 200576 详情 立即询价
PIKFYVE基因敲除HCT116细胞 EDJ-KQ21420 200576 详情 立即询价
PIKFYVE基因敲除A549细胞 EDJ-KQ21419 200576 详情 立即询价
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