CUBN (cubilin)

symbol:
CUBN
locus group:
protein-coding gene
location:
10p13
gene_family:
alias symbol:
IFCR|gp280
alias name:
intrinsic factor-cobalamin receptor
entrez id:
8029
ensembl gene id:
ENSG00000107611
ucsc gene id:
uc001ioo.4
refseq accession:
NM_001081
hgnc_id:
HGNC:2548
approved reserved:
1998-11-02
10p13
基因染色体位置图

CUBN(Cubilin)是一种大型跨膜蛋白,属于LDL受体相关蛋白(LRP)家族成员,主要在小肠、肾脏和卵黄囊等组织中表达。它的生物学功能是作为多配体受体,与内源性或外源性配体结合,参与维生素B12(钴胺素)的吸收、肾脏的重吸收功能以及胚胎发育等过程。CUBN与另一种蛋白AMN(Amnionless)形成复合物,称为“Cubam”,这对维生素B12在回肠的吸收至关重要。在肾脏中,CUBN参与重吸收过滤蛋白(如白蛋白和转铁蛋白),维持蛋白质稳态。CUBN突变会导致遗传性疾病,如Imerslund-Gräsbeck综合征(IGS),表现为维生素B12缺乏和蛋白尿,因为突变破坏了CUBN与配体或AMN的结合能力。此外,CUBN表达异常与慢性肾病、糖尿病肾病和某些癌症相关。CUBN过表达可能增强维生素B12吸收或肾脏蛋白重吸收,但具体影响尚不明确;而降低表达则可能导致维生素B12缺乏、蛋白尿或肾功能障碍。CUBN属于LDL受体相关蛋白家族,该家族成员通常参与内吞作用、信号转导和脂质代谢等过程,具有相似的结构域(如EGF重复序列和LDL受体结合域)。研究CUBN有助于理解营养吸收、肾脏疾病和发育异常的机制。

Cubilin (CUBN) acts as a receptor for intrinsic factor-vitamin B12 complexes. The role of receptor is supported by the presence of 27 CUB domains. Cubulin is located within the epithelium of intestine and kidney. Mutations in CUBN may play a role in autosomal recessive megaloblastic anemia. [provided by RefSeq, Jul 2008]

Cubilin(CUBN)充当内在因子维生素B12复合物的受体。受体的作用是由27 CUB结构域的存在支持。 Cubulin位于肠和肾上皮内。在CUBN突变可能在常染色体隐性遗传巨幼细胞贫血的作用。 [由RefSeq的,2008年7月提供]

CUBN基因的碱基序列:[NCBI]
Loading Gene Browser...
CUBN基因的碱基突变:           仅显示部分snp
rs703058       rs703059       rs703060       rs703061       rs703062       rs703064       rs703065       rs703066       rs703070       rs703072       rs703073       rs703074       rs703075       rs725396       rs780618       rs780619       rs780620      

CUBN基因在不同组织中的表达:    [UniProt]

基因在不同组织中的表达图
正向引物序列
正向Tm值
反向引物序列
反向Tm值
评分
CTTGCAGCAGACTGTTGAC
60
GGAATCATGCAGATTGAGGC
60
CTTTACAGATTGTGGCGGA
58
AGGCTGTCATAAGCATTTGG
59
GTCCATAAATGGGAGAGGCT
59
TGCTCCTATAAGGACTGGG
58
TCAATCTCCAACAGCCTCG
60
AGGGATCCGGTTCTAAACTC
59
GAGATTTACTCAGGAACACCC
58
GCAAGGATTTCTGTAACTTCC
57
GAGATTTACTCAGGAACACCCT
60
GCAAGGATTTCTGTAACTTCCC
60
CTTGCAGCAGACTGTTGAC
60
GAATCATGCAGATTGAGGCA
59
CCAAATGCTTATGACAGCCT
59
ACTAAATGTGAGAGTGATGGTG
58
ATCAATCTCCAACAGCCTC
57
GGGATCCGGTTCTAAACTC
57
GTCCATAAATGGGAGAGGC
58
TGCTCCTATAAGGACTGGG
58
      尚未收录相关数据

CUBN基因(以及对应的蛋白质)的细胞分布位置:

[UniProt]     [GenomeNet]

" d="M482.414,245.296c3.539,4.293,4.455,10.009,0.202,11 c-4.244,0.996-4.983-10.983-8.293-8.438c-5.271,4.08,9.834,12.271,5.144,17.287c-3.717,3.607-6.172-5.75-10.839-1.976 c-4.673,3.776,6.781,7.299,2.831,11.326c-4.354,4.045-6.979-1.449-9.837-5.517c-1.193-1.742-2.059-3.851-3.595-2.748 c-1.516,1.078-1.854,1.795-0.938,3.666c2.374,4.854,9.235,10.119,5.156,12.535c-5.636,3.346-5.044-8.871-9.426-7.574 c-4.388,1.291,2.557,10.66-1.245,11.141c-4.089,0.545-3.483-10.239-6.979-8.575c-2.522,1.206-0.929,3.071-0.938,4.899 c0.004,1.32-0.964,3.6-2.372,4.062c-3.593,1.171-8.544-1.065-10.251-3.59c-6.04-8.93,0.396-15.997,4.639-7.015 c3.023,4.642,5.182,0.834,2.839-2.219c-1.032-1.354-4.309-5.901-0.781-7.252c2.904-1.113,4.271,1.941,5.985,4.592 c2.61,4.016,5.485,0.117,3.031-3.414c-1.828-2.633-2.74-3.803,3.156-7.42c6.405-4.369,6.52,3.869,10.077,0.646 c2.309-1.832-4.783-5.149,0.06-8.995c2.896-2.293,5.18,6.207,7.961,3.516c3.523-2.737-7.717-7.369,0.117-11.736 C473.413,240.77,480.519,242.891,482.414,245.296z"/> Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
  • 质膜
  • 细胞质
  • 细胞外
  • 高尔基体
  • 囊泡
  • 细胞骨架
  • 内质网
  • 细胞核
  • 内体
  • 溶酶体
  • 线粒体

CUBN基因的本体(GO)信息:

GO库代码
对应的蛋白质
来源代码
GO:0005509
B0YIZ6 (UniProtKB)
IEA
GO:0005509
H7C480 (UniProtKB)
IEA
GO:0001894
O60494 (UniProtKB)
NAS
GO:0004872
O60494 (UniProtKB)
IEA
GO:0005215
O60494 (UniProtKB)
TAS
GO:0005509
O60494 (UniProtKB)
IEA
GO:0005515
O60494 (UniProtKB)
IPI
GO:0005765
O60494 (UniProtKB)
IEA
GO:0005783
O60494 (UniProtKB)
IEA
GO:0005794
O60494 (UniProtKB)
IEA
GO:0005829
O60494 (UniProtKB)
TAS
GO:0005829
O60494 (UniProtKB)
TAS
GO:0005886
O60494 (UniProtKB)
TAS
GO:0005886
O60494 (UniProtKB)
TAS
GO:0005886
O60494 (UniProtKB)
TAS
GO:0005886
O60494 (UniProtKB)
TAS
GO:0005886
O60494 (UniProtKB)
TAS
GO:0005886
O60494 (UniProtKB)
TAS
GO:0005886
O60494 (UniProtKB)
TAS
GO:0005886
O60494 (UniProtKB)
TAS
GO:0005905
O60494 (UniProtKB)
IEA
GO:0006898
O60494 (UniProtKB)
NAS
GO:0008203
O60494 (UniProtKB)
IEA
GO:0009235
O60494 (UniProtKB)
TAS
GO:0010008
O60494 (UniProtKB)
TAS
GO:0015889
O60494 (UniProtKB)
TAS
GO:0016020
O60494 (UniProtKB)
TAS
GO:0016324
O60494 (UniProtKB)
IDA
GO:0030139
O60494 (UniProtKB)
IDA
GO:0031232
O60494 (UniProtKB)
NAS
GO:0031419
O60494 (UniProtKB)
IEA
GO:0031526
O60494 (UniProtKB)
NAS
GO:0042157
O60494 (UniProtKB)
TAS
GO:0042359
O60494 (UniProtKB)
TAS
GO:0042803
O60494 (UniProtKB)
IDA
GO:0042953
O60494 (UniProtKB)
IEA
GO:0043202
O60494 (UniProtKB)
TAS
GO:0043202
O60494 (UniProtKB)
TAS
GO:0070062
O60494 (UniProtKB)
IDA
GO:0070062
O60494 (UniProtKB)
IDA
GO:0070062
O60494 (UniProtKB)
IDA
GO:0070062
O60494 (UniProtKB)
IDA
GO:0004872
Q5JQ33 (UniProtKB)
IEA
GO:0006898
Q5JQ33 (UniProtKB)
IEA
GO:0016020
Q5JQ33 (UniProtKB)
IEA

可能调控 CUBN基因的相关microRNA:     

Reactome

BioGrid

mentha

String

基因与其他基因之间的相互作用关系图
序号 作用方式 资源库来源/分值 基因名称 基因名称
疾病名称 关系值 NofPmids NofSnps 来源
疾病名称 关系值 NofPmids NofSnps 来源
Megaloblastic anemia due to inborn errors of metabolism 0.482714419 10 30 BeFree_CLINVAR_CTD_human_ORPHANET_UNIPROT
Amphetamine-Related Disorders 0.12 1 0 CTD_human
melanoma 0.12 1 0 CTD_human
Diabetic Nephropathy 0.08 1 0 RGD
Coronary heart disease 0.002909916 2 0 BeFree_GAD
Congenital neurologic anomalies 0.00272435 1 0 LHGDN
Spina Bifida 0.002638474 1 0 BeFree_GAD
Diabetes Mellitus, Insulin-Dependent 0.002638474 1 1 BeFree_GAD
Blood pressure finding 0.002367032 1 1 GAD
Inflammation 0.002367032 1 0 GAD

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