IRF3(干扰素调节因子3)是干扰素调节因子(IRF)基因家族的重要成员,该家族由9个成员(IRF1-9)组成,主要参与调控干扰素(IFN)和免疫相关基因的表达。IRF家族基因的共同特点是含有保守的DNA结合域,能够识别干扰素刺激反应元件(ISRE),从而调控下游基因的转录。IRF3在先天免疫反应中起核心作用,特别是在抗病毒防御中。它通常在细胞质中处于非活性状态,但当病毒或病原体相关分子模式(如dsRNA或LPS)被模式识别受体(如TLR3、RIG-I或MDA5)识别后,IRF3会被TBK1或IKKε激酶磷酸化,导致其构象变化、二聚化并转位到细胞核,激活I型干扰素(如IFN-α/β)和促炎细胞因子的表达。IRF3的突变或功能异常可能导致免疫缺陷,增加病毒感染易感性,或与自身免疫疾病(如系统性红斑狼疮)相关。IRF3过表达会增强干扰素反应,可能用于抗病毒治疗,但也可能导致过度炎症反应或自身免疫疾病;而IRF3表达降低或缺失会削弱抗病毒免疫,增加感染风险。IRF3还与其他基因如MAVS、STING等相互作用,形成抗病毒信号网络。此外,IRF3在肿瘤免疫中也发挥作用,其激活可促进肿瘤微环境中的免疫监视。
This gene encodes a member of the interferon regulatory transcription factor (IRF) family. The encoded protein is found in an inactive cytoplasmic form that upon serine/threonine phosphorylation forms a complex with CREBBP. This complex translocates to the nucleus and activates the transcription of interferons alpha and beta, as well as other interferon-induced genes. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]
该基因编码的干扰素调节转录因子(IRF)家族的一个成员。所编码的蛋白质是在非活性细胞质形式发现,在丝氨酸/苏氨酸磷酸化形成具有CREBBP的复合物。这种复杂转移到细胞核并激活干扰素α和β,以及其他干扰素诱导的基因的转录。编码多种亚型选择性剪接的转录物变体已经观察到这种基因。 [由RefSeq的,2011年11月提供]
IRF3基因(以及对应的蛋白质)的细胞分布位置:
IRF3基因的本体(GO)信息:
名称 |
---|
4620 Toll-like receptor signaling pathway [PATH:hsa04620] |
4622 RIG-I-like receptor signaling pathway [PATH:hsa04622] |
4623 Cytosolic DNA-sensing pathway [PATH:hsa04623] |
5203 Viral carcinogenesis [PATH:hsa05203] |
5133 Pertussis [PATH:hsa05133] |
5162 Measles [PATH:hsa05162] |
5164 Influenza A [PATH:hsa05164] |
5161 Hepatitis B [PATH:hsa05161] |
5160 Hepatitis C [PATH:hsa05160] |
5168 Herpes simplex infection [PATH:hsa05168] |
5169 Epstein-Barr virus infection [PATH:hsa05169] |
名称 |
---|
Activated TLR4 signalling |
Activation of IRF3/IRF7 mediated by TBK1/IKK epsilon |
Antiviral mechanism by IFN-stimulated genes |
Cytokine Signaling in Immune system |
Cytosolic sensors of pathogen-associated DNA |
Factors involved in megakaryocyte development and platelet production |
Hemostasis |
Immune System |
Innate Immune System |
Interferon alpha/beta signaling |
Interferon gamma signaling |
Interferon Signaling |
IRF3 mediated activation of type 1 IFN |
IRF3-mediated induction of type I IFN |
ISG15 antiviral mechanism |
LRR FLII-interacting protein 1 (LRRFIP1) activates type I IFN production |
MyD88-independent TLR3/TLR4 cascade |
Negative regulators of RIG-I/MDA5 signaling |
Regulation of innate immune responses to cytosolic DNA |
RIG-I/MDA5 mediated induction of IFN-alpha/beta pathways |
STING mediated induction of host immune responses |
Toll Like Receptor 3 (TLR3) Cascade |
Toll Like Receptor 4 (TLR4) Cascade |
Toll-Like Receptors Cascades |
TRAF3-dependent IRF activation pathway |
TRAF6 mediated IRF7 activation |
TRIF-mediated TLR3/TLR4 signaling |
ZBP1(DAI) mediated induction of type I IFNs |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Infection | 0.024519152 | 9 | 0 | LHGDN |
Virus Diseases | 0.009500466 | 35 | 0 | BeFree |
Lupus Erythematosus, Systemic | 0.006448592 | 5 | 0 | BeFree_GAD_LHGDN |
Hepatitis C, Chronic | 0.005005506 | 3 | 0 | BeFree_GAD |
Hepatitis C | 0.004538567 | 9 | 0 | BeFree_GAD |
Reoviridae Infections | 0.003267234 | 2 | 0 | BeFree_LHGDN |
Measles | 0.003267234 | 2 | 0 | BeFree_LHGDN |
Liver Cirrhosis | 0.002909916 | 3 | 0 | BeFree_GAD |
Lymphoma | 0.00272435 | 1 | 0 | LHGDN |
Rabies (disorder) | 0.00272435 | 1 | 0 | LHGDN |
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