IGFBPL1 is a secreted IGF (Insulin-like growth factor) binding protein that is known to contain an Ig-like C2-type (immunoglobulin-like) domain, an IGFBP N-terminal domain and a Kazal-like domain. IGF-binding proteins characteristically act to extend the half-life of IGFs and may influence the growth promoting effects of the IGFs. The interaction of IGFBPs with IGFs can affect cell surface receptors, specifically, IGFBPs may enhance or decrease a cells insulin sensitivity. IGFBPL1 has been found to be down-regulated in multiple tumors and thus may be a likely tumor suppressor candidate. Highly expressed in both brain and testis, IGFBPL1 is found at lower levels in the prostate, bladder and lung.
Function:
IGF-binding proteins prolong the half-life of IGFs and have been shown to either inhibit or stimulate the growth promoting effects of the IGFs in cell culture. They alter the interaction of IGFs with their cell surface receptors (By similarity). May be a putative tumor suppressor protein.
Subcellular Location:
Secreted.
Tissue Specificity:
Expressed at the highest level in both brain and testis, with lower levels in the prostate, bladder and lung.
Similarity:
Contains 1 Ig-like C2-type (immunoglobulin-like) domain.
Contains 1 IGFBP N-terminal domain.
Contains 1 Kazal-like domain.
SWISS:
Q8WX77
Gene ID:
347252
Database links:
Entrez Gene: 347252 Human
Omim: 610413 Human
SwissProt: Q8WX77 Human
|
|
