PMID- 30386629 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 2055-0391 (Print) IS - 2055-0391 (Electronic) IS - 2055-0391 (Linking) VI - 60 DP - 2018 TI - Long non-coding RNA: its evolutionary relics and biological implications in mammals: a review. PG - 25 LID - 10.1186/s40781-018-0183-7 [doi] LID - 25 AB - The central dogma of gene expression propounds that DNA is transcribed to mRNA and finally gets translated into protein. Only 2-3% of the genomic DNA is transcribed to protein-coding mRNA. Interestingly, only a further minuscule part of genomic DNA encodes for long non-coding RNAs (lncRNAs) which are characteristically more than 200 nucleotides long and can be transcribed from both protein-coding (e.g. H19 and TUG1) as well as non-coding DNA by RNA polymerase II. The lncRNAs do not have open reading frames (with some exceptions), 3;-untranslated regions (3'-UTRs) and necessarily these RNAs lack any translation-termination regions, however, these can be spliced, capped and polyadenylated as mRNA molecules. The flexibility of lncRNAs confers them specific 3D-conformations that eventually enable the lncRNAs to interact with proteins, DNA or other RNA molecules via base pairing or by forming networks. The lncRNAs play a major role in gene regulation, cell differentiation, cancer cell invasion and metastasis and chromatin remodeling. Deregulation of lncRNA is also responsible for numerous diseases in mammals. Various studies have revealed their significance as biomarkers for prognosis and diagnosis of cancer. The aim of this review is to overview the salient features, evolution, biogenesis and biological importance of these molecules in the mammalian system. FAU - Dhanoa, Jasdeep Kaur AU - Dhanoa JK AD - School of Animal Biotechnology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab India. ISNI: 0000 0004 1808 3035. GRID: grid.411890.5 FAU - Sethi, Ram Saran AU - Sethi RS AD - School of Animal Biotechnology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab India. ISNI: 0000 0004 1808 3035. GRID: grid.411890.5 FAU - Verma, Ramneek AU - Verma R AD - School of Animal Biotechnology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab India. ISNI: 0000 0004 1808 3035. GRID: grid.411890.5 FAU - Arora, Jaspreet Singh AU - Arora JS AD - School of Animal Biotechnology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab India. ISNI: 0000 0004 1808 3035. GRID: grid.411890.5 FAU - Mukhopadhyay, Chandra Sekhar AU - Mukhopadhyay CS AUID- ORCID: 0000-0002-4545-4204 AD - School of Animal Biotechnology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab India. ISNI: 0000 0004 1808 3035. GRID: grid.411890.5 LA - eng PT - Journal Article PT - Review DEP - 20181025 PL - Korea (South) TA - J Anim Sci Technol JT - Journal of animal science and technology JID - 101661694 PMC - PMC6201556 OTO - NOTNLM OT - Biogenesis OT - Disease biomarker OT - Evolution OT - Long non-coding RNA OT - Mammals COIS- Not applicable.Not applicable.The authors declare that they have no competing interests.Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. EDAT- 2018/11/06 06:00 MHDA- 2018/11/06 06:01 PMCR- 2018/10/25 CRDT- 2018/11/03 06:00 PHST- 2018/08/23 00:00 [received] PHST- 2018/10/05 00:00 [accepted] PHST- 2018/11/03 06:00 [entrez] PHST- 2018/11/06 06:00 [pubmed] PHST- 2018/11/06 06:01 [medline] PHST- 2018/10/25 00:00 [pmc-release] AID - 183 [pii] AID - 10.1186/s40781-018-0183-7 [doi] PST - epublish SO - J Anim Sci Technol. 2018 Oct 25;60:25. doi: 10.1186/s40781-018-0183-7. eCollection 2018.