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NRAS / N-ras
neuroblastoma RAS viral (v-ras) oncogene homolog
The N-ras oncogene is a member of the RAS gene family. It is mapped on chromosome 1, and it is activated in HL60, a promyelocytic leukemia line. The order of nearby genes is as follows: cen--CD2--NGFB--NRAS--tel. The mammalian ras gene family consists of the harvey and kirsten ras genes (c-Hras1 and c-Kras2), an inactive pseudogene of each (c-Hras2 and c-Kras1) and the N-ras gene. They differ significantly only in the C-terminal 40 amino acids. These ras genes have GTP/GDP binding and GTPase activity, and their normal function may be as G-like regulatory proteins involved in the normal control of cell growth. Mutations which change amino acid residues 12, 13 or 61 activate the potential of N-ras to transform cultured cells and are implicated in a variety of human tumors. The N-ras gene specifies two main transcripts of 2Kb and 4.3Kb. The difference between the two transcripts is a simple extension through the termination site of the 2Kb transcript. The N-ras gene consists of seven exons (-I, I, II, III, IV, V, VI). The smaller 2Kb transcript contains the VIa exon, and the larger 4.3Kb transcript contains the VIb exon which is just a longer form of the VIa exon. Both transcripts encode identical proteins as they differ only the 3' untranslated region. The sequence of the shorter 2Kb transcript is presented here. The 4.3 Kb transcript sequence is not available.
| Gene Name: | neuroblastoma RAS viral (v-ras) oncogene homolog |
| Family/Subfamily: | Ras GTPase superfamily IPR001806 , RAS oncogene |
| Synonyms: | NRAS, HRAS1, NRAS1, NS6, ALPS4, Transforming protein N-Ras, N-ras, N-ras protein part 4, GTPase NRas |
| Target Sequences: | NM_002524 NP_002515.1 P01111 |
Publications (2)
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