| ID | Sequence | Length | GC content |
|---|---|---|---|
| GAGGAAGAAGCGGAGGAGGCGGCUCCCGCGCUCGCAGGGCCGUGCCACC… | 1414 nt | 0.6740 | |
| GAUUCAGAUCCUCUCUGCCUCCUUUGGCUGGACGUGCCUCAGCCAGAGU… | 1048 nt | 0.5859 | |
| CAGGUUUGGAAAACUGCAAUAGUCACUAAGACCAUUCGGGGCUGUUUGG… | 1316 nt | 0.5904 | |
| CAGGUUUGGAAAACUGCAAUAGUCACUAAGACCAUUCGGGGCUGUUUGG… | 1055 nt | 0.5848 |
The protein encoded by this gene is one of six similar proteins that bind insulin-like growth factors I and II (IGF-I and IGF-II). The encoded protein can be secreted into the bloodstream, where it binds IGF-I and IGF-II with high affinity, or it can remain intracellular, interacting with many different ligands. High expression levels of this protein promote the growth of several types of tumors and may be predictive of the chances of recovery of the patient. Several transcript variants, one encoding a secreted isoform and the others encoding nonsecreted isoforms, have been found for this gene. [provided by RefSeq, Sep 2015]
A study in mice demonstrated that perinatal lead exposure altered adult hippocampal cell composition, increasing oligodendrocyte proportion by 12.4% and causing differential gene expression in specific cell clusters [Bakulski et al. DOI:10.1093/toxsci/kfaa069]. In the context of traumatic brain injury, research in animal models shows that the IGFBP2 mRNA is upregulated close to the injury site, with this increase being glutamate-dependent and potentially involved in edema formation [Mangiola et al. DOI:10.1155/2015/736104]. A study in mice demonstrated that the IGFBP2 was specifically down-regulated following Kupffer cell-specific exposure to α-particle radiation, as identified through oligonucleotide microarray analysis of liver tissue [Roudkenar et al. DOI:10.1269/jrr.07078].