UniProt functional annotation for O95633

UniProt code: O95633.

Organism: Homo sapiens (Human).
Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
 
Function: Isoform 1 or the secreted form is a binding and antagonizing protein for members of the TGF-beta family, such us activin, BMP2 and MSTN. Inhibits activin A-, activin B-, BMP2- and MSDT-induced cellular signaling; more effective on activin A than on activin B. Involved in bone formation; inhibits osteoclast differentiationc. Involved in hematopoiesis; involved in differentiation of hemopoietic progenitor cells, increases hematopoietic cell adhesion to fibronectin and seems to contribute to the adhesion of hematopoietic precursor cells to the bone marrow stroma. Isoform 2 or the nuclear form is probably involved in transcriptional regulation via interaction with MLLT10. {ECO:0000269|PubMed:11948405, ECO:0000269|PubMed:15451575, ECO:0000269|PubMed:15574124, ECO:0000269|PubMed:16336961, ECO:0000269|PubMed:17868029, ECO:0000269|PubMed:17878677}.
 
Subunit: Interacts with INHBA and INHBB. Interacts with FN1. Interacts with ADAM12. Isoform 2 interacts with MLLT10; the interaction enhances MLLT10 in vitro transcriptional activity and self-association. Interacts with MSTN. {ECO:0000269|PubMed:12697670, ECO:0000269|PubMed:15574124, ECO:0000269|PubMed:16336961, ECO:0000269|PubMed:17868029, ECO:0000269|PubMed:17878677, ECO:0000269|PubMed:18768470, ECO:0000269|PubMed:22052913}.
Subcellular location: [Isoform 1]: Secreted.
Subcellular location: [Isoform 2]: Nucleus. Note=Although alternative initiation has been demonstrated and resulted in different localization, the major source of nuclear FSTL3 appears not to depend on translation initiation at Met-27 according to. {ECO:0000269|PubMed:16150905}.
Tissue specificity: Expressed in a wide range of tissues. {ECO:0000269|PubMed:11459787}.
Disease: Note=A chromosomal aberration involving FSTL3 is found in a case of B-cell chronic lymphocytic leukemia. Translocation t(11;19)(q13;p13) with CCDN1. {ECO:0000269|PubMed:9671416}.

Annotations taken from UniProtKB at the EBI.