A non-coding RNA (ncRNA) is a functional RNA molecule that is not translated into a protein. The DNA sequence from which a functional non-coding RNA is transcribed is often called an RNA gene. Abundant and functionally important types of non-coding RNAs include transfer RNAs (tRNAs) and ribosomal RNAs (rRNAs), as well as small RNAs such as microRNAs, siRNAs, piRNAs, snoRNAs, snRNAs, exRNAs, scaRNAs and the long ncRNAs such as Xist and HOTAIR.
Cyclin-dependent kinase inhibitor 1B (p27Kip1) is an enzyme inhibitor that in humans is encoded by the CDKN1B gene. It encodes a protein which belongs to the Cip/Kip family of cyclin dependent kinase (Cdk) inhibitor proteins. The encoded protein binds to and prevents the activation of cyclin E-CDK2 or cyclin D-CDK4 complexes, and thus controls the cell cycle progression at G1. It is often referred to as a cell cycle inhibitor protein because its major function is to stop or slow down the cell division cycle.
Mucin-4 (MUC-4) is a mucin protein that in humans is encoded by the MUC4 gene. Like other mucins, MUC-4 is a high-molecular weight glycoprotein.
Metastasis-associated protein MTA1 is a protein that in humans is encoded by the MTA1 gene. MTA1 is the founding member of the MTA family of genes. MTA1 is primarily localized in the nucleus but also found to be distributed in the extra-nuclear compartments. MTA1 is a component of several chromatin remodeling complexes including the nucleosome remodeling and deacetylation complex (NuRD). MTA1 regulates gene expression by functioning as a coregulator to integrate DNA-interacting factors to gene activity. MTA1 participates in physiological functions in the normal and cancer cells. MTA1 is one of the most upregulated proteins in human cancer and associates with cancer progression, aggressive phenotypes, and poor prognosis of cancer patients.
Nucleoside diphosphate kinase A is an enzyme that in humans is encoded by the NME1 gene. It is thought to be a metastasis suppressor.
Protein tyrosine phosphatase type IVA 3 is an enzyme that in humans is encoded by the PTP4A3 gene.
Hyaluronan-mediated motility receptor (HMMR), also known as RHAMM (Receptor for Hyaluronan Mediated Motility) is a protein which in humans is encoded by the HMMR gene. RHAMM recently has been also designated CD168 (cluster of differentiation 168).
RNA-binding motif 10 is a protein that is encoded by the RBM10 gene. This gene maps on the X chromosome at Xp11.23 in humans. RBM10 is a regulator of alternative splicing. Alternative splicing is a process associated with gene expression to produce multiple protein isoforms from a single gene, thereby creating functional diversity and cellular complexity. RBM10 influences the expression of many genes, participating in various cellular processes and pathways such as cell proliferation and apoptosis. Its mutations are associated with various human diseases such as TARP syndrome, an X-linked congenital disorder in males resulting in pre‐ or postnatal lethality, and various cancers in adults.
Metastasis-associated protein MTA3 is a protein that in humans is encoded by the MTA3 gene. MTA3 protein localizes in the nucleus as well as in other cellular compartments MTA3 is a component of the nucleosome remodeling and deacetylate (NuRD) complex and participates in gene expression. The expression pattern of MTA3 is opposite to that of MTA1 and MTA2 during mammary gland tumorigenesis. However, MTA3 is also overexpressed in a variety of human cancers.
Long non-coding RNAs are a type of RNA, generally defined as transcripts more than 200 nucleotides that are not translated into protein. This arbitrary limit distinguishes long ncRNAs from small non-coding RNAs, such as microRNAs (miRNAs), small interfering RNAs (siRNAs), Piwi-interacting RNAs (piRNAs), small nucleolar RNAs (snoRNAs), and other short RNAs. Given that some lncRNAs have been reported to have the potential to encode small proteins or micro-peptides, the latest definition of lncRNA is a class of transcripts of over 200 nucleotides that have no or limited coding capacity. However, John S. Mattick and colleagues suggested to change definition of long non-coding RNAs to transcripts more than 500 nt, which are mostly generated by Pol II. That means that question of lncRNA exact definition is still under discussion in the field. Long intervening/intergenic noncoding RNAs (lincRNAs) are sequences of transcripts that do not overlap protein-coding genes.
HOTAIR is a human gene located between HOXC11 and HOXC12 on chromosome 12. It is the first example of an RNA expressed on one chromosome that has been found to influence the transcription of the HOXD cluster posterior genes located on chromosome 2. The sequence and function of HOTAIR are different in humans and mice. Sequence analysis of HOTAIR revealed that it exists in mammals, has poorly conserved sequences and considerably conserved structures, and has evolved faster than nearby HoxC genes. A subsequent study identified HOTAIR has 32 nucleotides long conserved noncoding element (CNE) that has a paralogous copy in HOXD cluster region, suggesting that the HOTAIR conserved sequences predate whole genome duplication events at the root of vertebrate. While the conserved sequence paralogous with HOXD cluster is 32 nucleotide long, the HOTAIR sequence conserved from human to fish is about 200 nucleotide long and is marked by active enhancer features.
NEAT1 is a ~3.2 kb novel nuclear long non-coding RNA. It is also known as Virus Inducible NonCoding RNA (VINC) or MEN epsilon RNA. It is transcribed from the multiple endocrine neoplasia locus.
MALAT1-associated small cytoplasmic RNA, also known as mascRNA, is a non-coding RNA found in the cytosol. This is a small RNA, roughly 53–61 nucleotides in length, that is processed from a much longer ncRNA called MALAT1 by an enzyme called RNase P. This RNA is expressed in many different human tissues, is highly conserved by evolution and shares a remarkable similarity to tRNA which is also produced by RNase P, yet this RNA is not aminoacylated in HeLa cells. The primary transcript, MALAT1, appears to be upregulated in several malignant cancers. Another small RNA that is homologous to mascRNA, called menRNA, is processed from another long ncRNA called MEN beta.
In molecular biology, the miR-200 microRNA is a short RNA molecule. MicroRNAs function to regulate the expression levels of other genes by binding and cleaving mRNAs or inhibiting translation. The miR-200 family contains miR-200a, miR-200b, miR-200c, miR-141, and miR-429. There is growing evidence to suggest that miR-200 microRNAs are involved in cancer metastasis.
In molecular biology miR-205 microRNA is a short RNA molecule. MicroRNAs function to regulate the expression levels of other genes by several mechanisms. They are involved in numerous cellular processes, including development, proliferation, and apoptosis. Currently, it is believed that miRNAs elicit their effect by silencing the expression of target genes.
HOXA11-AS lncRNA is a long non-coding RNA from the antisense strand in the homeobox A. The HOX gene contains four clusters. The sense strand of the HOXA gene codes for proteins. Alternative names for HOXA11-AS lncRNA are: HOXA-AS5, HOXA11S, HOXA11-AS1, HOXA11AS, or NCRNA00076. This gene is 3,885 nucleotides long and resides at chromosome 7 (7p15.2) and is transcribed from an independent gene promoter. Being a lncRNA, it is longer than 200 nucleotides in length, in contrast to regular non-coding RNAs.
Colon cancer associated transcript 1 is a long non-coding RNA that, in humans, is encoded by the CCAT1 gene.
BRAF-activated non-protein coding RNA is a noncoding RNA that in humans is encoded by the BANCR gene. Long non-coding RNAs (lncRNAs) are involved in the intricate network of cancer and contribute significantly to tumorigenesis and progression. BRAF activated non-coding RNA (BANCR), a 693-bp four-exon transcript, was first identified in 2012 as an oncogenic long non-coding RNA in BRAFV600E melanomas cells and was found to be associated with melanoma cell migration. Apart from melanoma, growing evidence has implicated BANCR in the development and progression of a variety of other human malignancies, including retinoblastoma, lung cancer, and gastric cancer, since its discovery. The pattern of expression of BANCR varies according to the kind of cancer, acting as either a tumour suppressor or an accelerator. Functional BANCR may be a useful biomarker for cancer diagnosis and prognosis assessment. BANCR-targeted therapy may also prove to be a promising new treatment option for human cancers.
Small nucleolar RNA host gene 1 is a non-protein coding RNA that in humans is encoded by the SNHG1 gene.
MIR22HG, also known as C17orf91, MGC14376, MIRN22, hsa-mir-22, and miR-22 is a human gene that encodes a noncoding RNA (ncRNA).This RNA molecule is not translated into a protein but nonetheless may have important functions.
