Spondin 2 (SPON2)

DIL1; Mindin; M-spondin; Extracellular Matrix Protein; Differentially expressed in cancerous and non-cancerous lung cells 1

SPN	R403
HGNC	11253
MGI	1923724
PubMed	10512675
RGD	708584
UniProt	Q9BUD6

The full-length SPON2 cDNA encodes a 331-amino acid protein with a domain organization similar to those of zebrafish mindin-1/mindin-2 and F-spondin (SPON1): a hydrophobic signal sequence in the N terminus, an FS1 domain, an FS2 domain, and a thrombospondin type I repeat.

The mouse mindin protein, which is 85% identical to the human protein, is a conserved member of a family of secreted extracellular matrix proteins. RNA blot analysis detected expression in a variety of tissues, with abundant expression in lung and lymphoid tissues. Immunoblot blot analysis showed expression of a 42-kD protein under reducing conditions and expression of dimers and oligomers in a concentration-dependent manner under nonreducing conditions.

Reference

"Identification of genes (SPON2 and C20orf2) differentially expressed between cancerous and noncancerous lung cells by mRNA differential display."
Genomics 61:5-14(1999) [PubMed] [Europe PMC] [Abstract]

"The secreted protein discovery initiative (SPDI), a large-scale effort to identify novel human secreted and transmembrane proteins: a bioinformatics assessment."
Genome Res. 13:2265-2270(2003) [PubMed] [Europe PMC] [Abstract]

"Complete sequencing and characterization of 21,243 full-length human cDNAs."
Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract]

"Generation and annotation of the DNA sequences of human chromosomes 2 and 4."
Nature 434:724-731(2005) [PubMed] [Europe PMC] [Abstract]

"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract]

"Structure of the F-spondin domain of mindin, an integrin ligand and pattern recognition molecule."
EMBO J. 28:286-297(2009) [PubMed] [Europe PMC] [Abstract]