This zinc-finger like domain is distributed throughout the eukaryotic kingdom in NIPA (Nuclear interacting partner of ALK) proteins. NIPA is implicate to perform some sort of antiapoptotic role in nucleophosmin-anaplastic lymphoma kinase (ALK) mediated signaling events [1]. The domain is often repeated, with the second domain usually containing a large insert (approximately 90 residues) after the first three cysteine residues. The Schizosaccharomyces pombe the protein containing this domain (Swiss:O94506) is involved in mRNA export from the nucleus [2].

1: Identification and characterization of a nuclear interacting partner of anaplastic lymphoma kinase (NIPA). Ouyang T, Bai RY, Bassermann F, von Klitzing C, Klumpen S, Miething C, Morris SW, Peschel C, Duyster J; J Biol Chem 2003;278:30028-30036. PMID:12748172

2: Schizosaccharomyces pombe rsm1 genetically interacts with spmex67, which is involved in mRNA export. Yoon JH; J Microbiol 2004;42:32-36. PMID:15357289