RAN is a small GTP-binding protein of the RAS superfamily that is associated with the nuclear membrane and is thought to control a variety of cellular functions through its interactions with other proteins. This gene shares a high degree of sequence identity with RANBP2, a large RAN-binding protein localized at the cytoplasmic side of the nuclear pore complex. It is believed that this RANBP2 gene family member arose from a duplication event 3 Mb distal to RANBP2. Alternative splicing has been observed for this locus and two variants are described. Additional splicing is suggested but complete sequence for further transcripts has not been determined.[7]
^Cai Y, Miao SY, Wang LF (October 2001). "[Determination of the binding site of testis-specific nucleoporin BS-63 to transportin (karopherin beta 2) and the proof of their combination in vitro]". Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae. 23 (5): 462–6. PMID12905863.
Cai Y, Miao SY, Wang LF (October 2001). "[Determination of the binding site of testis-specific nucleoporin BS-63 to transportin (karopherin beta 2) and the proof of their combination in vitro]". Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae. 23 (5): 462–6. PMID12905863.
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Nothwang HG, Rensing C, Kübler M, Denich D, Brandl B, Stubanus M, Haaf T, Kurnit D, Hildebrandt F (February 1998). "Identification of a novel Ran binding protein 2 related gene (RANBP2L1) and detection of a gene cluster on human chromosome 2q11-q12". Genomics. 47 (3): 383–92. doi:10.1006/geno.1997.5119. PMID9480752.