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胰岛素样生长因子1

胰岛素样生长因子1
已知的结构
PDB直系同源搜索: PDBe RCSB
识别号
别名IGF1;, IGF-I, IGF1A, IGFI, MGF, insulin like growth factor 1, IGF
外部IDOMIM147440 MGI96432 HomoloGene:515 GeneCardsIGF1
相关疾病
growth delay due to insulin-like growth factor type 1 deficiency[1]
基因位置(人类
12号染色体
染色体12号染色体[2]
12号染色体
胰岛素样生长因子1的基因位置
胰岛素样生长因子1的基因位置
基因座12q23.2起始102,395,874 bp[2]
终止102,481,744 bp[2]
RNA表达模式




查阅更多表达数据
直系同源
物种人类小鼠
Entrez
Ensembl
UniProt
mRNA​序列

NM_000618
​NM_001111283
​NM_001111284
​NM_001111285

蛋白序列

NP_000609
​NP_001104753
​NP_001104754
​NP_001104755

NP_001104744
​NP_001104745
​NP_001104746
​NP_001300939
​NP_034642

基因位置​(UCSC)Chr 12: 102.4 – 102.48 MbChr 10: 87.69 – 87.77 Mb
PubMed​查找[4][5]
维基数据
查看/编辑人类查看/编辑小鼠

胰岛素样生长因子1(英语:Insulin-like growth factor 1IGF-1)也被称为生长调节素C(somatomedin C),是一个由人类基因 IGF1 编码的蛋白质[6][7]。在1970年代,IGF-1也曾经被称为“酸硫化英语sulfation因子”[8],并认为其作用为“不受抑制的胰岛样活力”(nonsuppressible insulin-like activity,NSILA)。

IGF-1是一个在三级结构上与胰岛素类似的激素,在儿童成长发育中有重要作用,并持续在成人的合成代谢中起作用。一种人工合成的IGF-1类似物,美卡舍明英语mecasermin,用于治疗发育停滞[9]

IGF-1蛋白由一个肽链构成,包括70个氨基酸残基和三个分子内二硫键,分子量为7,649道尔顿[10]

已经发现,垂体前部的生长激素(GH)分泌受到GH释放激素( GHRH )和生长抑素的调节,GHRH和生长抑素之间的相互作用引起搏动性GH分泌,在青春期最高。GH诱导肝脏中胰岛素样生长因子1的产生,并调节许多其他组织中IGF-1的旁分泌。IGF-1是GH的合成代谢和促有丝分裂活性的介体。

参考文献

  1. ^ 與胰岛素样生长因子1相關的疾病;在維基數據上查看/編輯參考. 
  2. ^ 2.0 2.1 2.2 GRCh38: Ensembl release 89: ENSG00000017427 - Ensembl, May 2017
  3. ^ 3.0 3.1 3.2 GRCm38: Ensembl release 89: ENSMUSG00000020053 - Ensembl, May 2017
  4. ^ Human PubMed Reference:. National Center for Biotechnology Information, U.S. National Library of Medicine. 
  5. ^ Mouse PubMed Reference:. National Center for Biotechnology Information, U.S. National Library of Medicine. 
  6. ^ Höppener JW, de Pagter-Holthuizen P, Geurts van Kessel AH, Jansen M, Kittur SD, Antonarakis SE, Lips CJ, Sussenbach JS. The human gene encoding insulin-like growth factor I is located on chromosome 12. Hum. Genet. 1985, 69 (2): 157–60. PMID 2982726. doi:10.1007/BF00293288. 
  7. ^ Jansen M, van Schaik FM, Ricker AT, Bullock B, Woods DE, Gabbay KH, Nussbaum AL, Sussenbach JS, Van den Brande JL. Sequence of cDNA encoding human insulin-like growth factor I precursor. Nature. 1983, 306 (5943): 609–11. PMID 6358902. doi:10.1038/306609a0. 
  8. ^ Salmon WD, Daughaday WH. A hormonally controlled serum factor which stimulates sulfate incorporation by cartilage in vitro. J Lab Clin Med. 1957, 49 (6): 825–36. PMID 13429201. 
  9. ^ Keating GM. Mecasermin. BioDrugs. 2008, 22 (3): 177–88. PMID 18481900. doi:10.2165/00063030-200822030-00004. 
  10. ^ Rinderknecht E, Humbel RE. The amino acid sequence of human insulin-like growth factor I and its structural homology with proinsulin. J Biol Chem. 1978, 253 (8): 2769–2776. PMID 632300. 

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胰岛素样生长因子1
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