Each row is one authority's own word for the gene, printed as its record carries it, with its release, the day it was read and a link to the record it came from; the blocks beneath print each record's fields, and RefSeq's summary paragraph is quoted as written. Nothing in them is written by AUM BioTech.
A long non-coding RNA is a transcript of more than 200 nucleotides that is not annotated as encoding a protein. The length is a convention that dates from 2007, and the term is a shorthand for transcripts of varied or unknown function rather than the name of one kind of RNA. [R02] [R17] [R01] A lncRNA gene is one that annotators identify by a combination of transcriptional evidence and a lack of potential to be assigned as protein-coding
[R05]; the class is related only by their size, more than 200 bases in length
[R52], and GENCODE does not absolutely require lncRNA genes to be longer than 200 bp
[R05]. [R04] [R02]
The authorities use different words for the same class. NCBI's gene type is ‘ncRNA’ and RGD's is ‘ncrna’, and RGD's record ties its word to the Sequence Ontology term ncRNA_gene, A gene that encodes a non-coding RNA.
; MGI's feature type is ‘lncRNA gene’, the Sequence Ontology's lncRNA_gene, A gene that encodes a long non-coding RNA.
, which is the term MGI supplies to the Alliance; Ensembl's biotype is ‘lncRNA’. The broader words do not contradict the finer ones. [R20] [R23] [R21] The two definitions are the ontology's own term records, SO:0002127 and SO:0001263, in the ontology version dated 2026-08-07; the Sequence Ontology is a structured controlled vocabulary for the parts of a genomic annotation
[R53].
A symbol's suffix is a naming convention, not a measurement: a gene is antisense if it overlaps the genomic coordinates of a protein coding gene on the opposite strand
[R02], -IT names a transcript transcribed entirely from within an intron of a protein coding gene on the same strand
[R02], -OT one that overlaps a protein coding gene on the same strand
[R02], -DT one transcribed from a bidirectional promoter in the opposite direction to a protein coding gene
[R02], and the intergenic ones are named with a common root symbol (LINC, ‘long intergenic non-coding RNA’) and an iterated, numerical suffix
[R52]; genes with no known function are named based on their genomic context
[R52]. HGNC groups its lncRNA genes by how they were named: LINC symbols for lncRNAs that overlap no protein-coding gene on either strand, share no bidirectional promoter with one and host no microRNA or snoRNA; -AS for antisense to a protein-coding gene's span; -DT for a divergent transcript from a bidirectional promoter; -IT for an intronic transcript on the same strand; -OT for an overlapping transcript on the same strand; and host genes for lncRNAs that hold a microRNA or snoRNA gene in their introns or exons. [R02] [R52] HGNC's own page for the LINC group names it ‘Long independently transcribed non-coding RNAs (LINC)’ and lists ‘Long intergenic non-protein coding RNAs’ among the names it was also known as [R59]; LINC00473's, LINC01018's and LINC02605's records carry the new name and, in HGNC's own date_name_changed field, the day of the change, 2026-06-11 (read 2026-09-09). The card prints the name and the group as the record carries them, the day as ‘Name changed’ and the earlier name under the record's previous names.
A design targets the transcript's sequence by base pairing, whatever class the annotators gave the gene. [R47] [R45]
HGNC names human genes; MGI holds the official mouse symbols and RGD the rat ones, and the three coordinate; RGD imports its gene models and positions from NCBI and Ensembl rather than annotating the genome itself. The Alliance of Genome Resources combines the model organism databases' records and standardises orthology across them with the DIOPT method, keeping the committees' curated assertions beside the sequence-based methods. [R03] [R20] [R21] [R22] [R24] [R23] [R25] [R26] [R27] The page reads HGNC's REST record; HGNC's paper of record is [R03] Seal RL, Braschi B, Gray K, McClay J, Tweedie S, Bruford EA (2026). Genenames.org: the HGNC and PGNC resources in 2026. Nucleic Acids Research 54:D1098-D1107. PMID 41287213, doi 10.1093/nar/gkaf1229.
- [R01] Mattick JS, Amaral PP, Carninci P, Carpenter S, Chang HY, Chen LL, et al. (2023). Long non-coding RNAs: definitions, functions, challenges and recommendations. Nature Reviews Molecular Cell Biology 24:430-447. PMID 36596869, doi 10.1038/s41580-022-00566-8.
- [R02] Seal RL, Chen LL, Griffiths-Jones S, Lowe TM, Mathews MB, O'Reilly D, et al. (2020). A guide to naming human non‐coding RNA genes. The EMBO Journal 39:e103777. PMID 32090359, doi 10.15252/embj.2019103777.
- [R03] Seal RL, Braschi B, Gray K, McClay J, Tweedie S, Bruford EA (2026). Genenames.org: the HGNC and PGNC resources in 2026. Nucleic Acids Research 54:D1098-D1107. PMID 41287213, doi 10.1093/nar/gkaf1229.
- [R04] Harrow J, Frankish A, Gonzalez JM, Tapanari E, Diekhans M, Kokocinski F, et al. (2012). GENCODE: The reference human genome annotation for The ENCODE Project. Genome Research 22:1760-1774. PMID 22955987, doi 10.1101/gr.135350.111.
- [R05] Frankish A, Diekhans M, Ferreira AM, Johnson R, Jungreis I, Loveland J, et al. (2019). GENCODE reference annotation for the human and mouse genomes. Nucleic Acids Research 47:D766-D773. PMID 30357393, doi 10.1093/nar/gky955.
- [R17] O'Leary NA, Wright MW, Brister JR, Ciufo S, Haddad D, McVeigh R, et al. (2016). Reference sequence (RefSeq) database at NCBI: current status, taxonomic expansion, and functional annotation. Nucleic Acids Research 44:D733-45. PMID 26553804, doi 10.1093/nar/gkv1189.
- [R20] Baldarelli RM, Smith CL, Ringwald M, Richardson JE, Bult CJ, Mouse Genome Informatics Group (2024). Mouse Genome Informatics: an integrated knowledgebase system for the laboratory mouse. GENETICS 227:iyae031. PMID 38531069, doi 10.1093/genetics/iyae031.
- [R21] Smith JR, Tutaj MA, Thota J, Lamers L, Gibson AC, Kundurthi A, et al. (2025). Standardized pipelines support and facilitate integration of diverse datasets at the Rat Genome Database. Database 2025:baae132. PMID 39841812, doi 10.1093/database/baae132.
- [R22] Vedi M, Smith JR, Thomas Hayman G, Tutaj M, Brodie KC, De Pons JL, et al. (2023). 2022 updates to the Rat Genome Database: a Findable, Accessible, Interoperable, and Reusable (FAIR) resource. GENETICS 224:iyad042. PMID 36930729, doi 10.1093/genetics/iyad042.
- [R23] Alliance of Genome Resources Consortium (2020). Alliance of Genome Resources Portal: unified model organism research platform. Nucleic Acids Research 48:D650-D658. PMID 31552413, doi 10.1093/nar/gkz813.
- [R24] Alliance of Genome Resources Consortium (2022). Harmonizing model organism data in the Alliance of Genome Resources. Genetics 220:iyac022. PMID 35380658, doi 10.1093/genetics/iyac022.
- [R25] Alliance of Genome Resources Consortium (2024). Updates to the Alliance of Genome Resources central infrastructure. GENETICS 227:iyae049. PMID 38552170, doi 10.1093/genetics/iyae049.
- [R26] Yates B, Gray KA, Jones TEM, Bruford EA (2021). Updates to HCOP: the HGNC comparison of orthology predictions tool. Briefings in Bioinformatics 22:bbab155. PMID 33959747, doi 10.1093/bib/bbab155.
- [R27] Hu Y, Flockhart I, Vinayagam A, Bergwitz C, Berger B, Perrimon N, et al. (2011). An integrative approach to ortholog prediction for disease-focused and other functional studies. BMC Bioinformatics 12:357. PMID 21880147, doi 10.1186/1471-2105-12-357.
- [R45] Crooke ST, Liang XH, Baker BF, Crooke RM (2021). Antisense technology: A review. Journal of Biological Chemistry 296:100416. PMID 33600796, doi 10.1016/j.jbc.2021.100416.
- [R47] Lennox KA, Behlke MA (2016). Cellular localization of long non-coding RNAs affects silencing by RNAi more than by antisense oligonucleotides. Nucleic Acids Research 44:863-877. PMID 26578588, doi 10.1093/nar/gkv1206.
- [R52] Wright MW (2014). A short guide to long non-coding RNA gene nomenclature. Human Genomics 8:7. PMID 24716852, doi 10.1186/1479-7364-8-7.
- [R53] Eilbeck K, Lewis SE, Mungall CJ, Yandell M, Stein L, Durbin R, et al. (2005). The Sequence Ontology: a tool for the unification of genome annotations. Genome Biology 6:R44. PMID 15892872, doi 10.1186/gb-2005-6-5-r44.
- [R59] HUGO Gene Nomenclature Committee, genenames.org. Gene group: Long independently transcribed non-coding RNAs (LINC). https://www.genenames.org/data/genegroup/#!/group/1986, read 2026-09-09.