| Standard Name | ELP6 1, 2 |
|---|---|
| Systematic Name | YMR312W |
| Alias | HAP3 , TOT6 3 , KTI4 4 |
| Feature Type | ORF, Verified |
| Description | Subunit of hexameric RecA-like ATPase Elp456 Elongator subcomplex; which is required for modification of wobble nucleosides in tRNA; required for Elongator structural integrity (5, 6, 7, 8 and see Summary Paragraph) |
| Name Description | ELongator Protein 1 |
| Chromosomal Location | |
|---|---|
| View Computational GO annotations for ELP6 | |
| Molecular Function | |
| Manually curated | |
| Biological Process | |
| Manually curated | |
| Cellular Component | |
| Manually curated |
| 369 total interaction(s) for 213 unique genes/features. | |
| Physical Interactions |
|
| Genetic Interactions |
|
| Resources |
|
|
| |
| Resources |
| Localization | |
|---|---|
| Phosphorylation | PhosphoGRID | PhosphoPep Database |
| Structure | |
| Homologs |
|
| |||||||||||||
| Last Update | Coordinates: 2011-02-03 | Sequence: 1996-07-31 | ||||||||||||
| Subfeature details |
| ||||||||||||
| Retrieve sequences | |||||||||||||
| S288C only | |
|---|---|
| S288C vs. other species | |
| S288C vs. other strains |
| External Links | All Associated Seq | Entrez Gene | Entrez RefSeq Protein | MIPS | Search all NCBI (Entrez) | UniProtKB |
|---|
| Primary SGDID | S000004929 |
|---|
Elp6p is part of the six-subunit Elongator complex, which is a major histone acetyltransferase component of the RNA polymerase II holoenzyme responsible for transcriptional elongation (9, 10, 3). Elongator contains two discrete subcomplexes, one consisting of Iki3p/Elp1p, Elp2p, and Elp3p, and the other consisting of Elp4p, Iki1p/Elp5p, and Elp6p (1, 2). Elongator binds to both naked and nucleosomal DNA, can acetylate both core histones and nucleosomal substrates, and plays a role in chromatin remodeling (11, 5). Its activity is directed specifically toward the amino-terminal tails of histone H3 and H4, with the predominant acetylation sites being lysine-14 of histone H3 and lysine-8 of histone H4 (5).
Of the six Elongator subunits, only Iki1p/Elp5p is essential for growth, and deletion of the other individual subunits causes significantly altered mRNA expression levels for many genes (2). Disruption of the Elongator complex confers resistance to the Kluyveromyces lactis zymotoxin (6), and a reduced sensitivity to the Pichia inositovora toxin (12).
| 1) | Winkler GS, et al. (2001) RNA polymerase II elongator holoenzyme is composed of two discrete subcomplexes. J Biol Chem 276(35):32743-9 |
| 2) | Krogan NJ and Greenblatt JF (2001) Characterization of a six-subunit holo-elongator complex required for the regulated expression of a group of genes in Saccharomyces cerevisiae. Mol Cell Biol 21(23):8203-12 |
| 3) | Jablonowski D, et al. (2001) Kluyveromyces lactis zymocin mode of action is linked to RNA polymerase II function via Elongator. Mol Microbiol 42(4):1095-105 |
| 4) | Butler AR, et al. (1991) Intracellular expression of Kluyveromyces lactis toxin gamma subunit mimics treatment with exogenous toxin and distinguishes two classes of toxin-resistant mutant. Yeast 7(6):617-25 |
| 5) | Winkler GS, et al. (2002) Elongator is a histone H3 and H4 acetyltransferase important for normal histone acetylation levels in vivo. Proc Natl Acad Sci U S A 99(6):3517-22 |
| 6) | Frohloff F, et al. (2003) Subunit communications crucial for the functional integrity of the yeast RNA polymerase II elongator (gamma-toxin target (TOT)) complex. J Biol Chem 278(2):956-61 |
| 7) | Esberg A, et al. (2006) Elevated levels of two tRNA species bypass the requirement for elongator complex in transcription and exocytosis. Mol Cell 24(1):139-48 |
| 8) | Glatt S, et al. (2012) The Elongator subcomplex Elp456 is a hexameric RecA-like ATPase.LID - 10.1038/nsmb.2234 [doi] Nat Struct Mol Biol () |
| 9) | Wittschieben BO, et al. (1999) A novel histone acetyltransferase is an integral subunit of elongating RNA polymerase II holoenzyme. Mol Cell 4(1):123-8 |
| 10) | Frohloff F, et al. (2001) Saccharomyces cerevisiae Elongator mutations confer resistance to the Kluyveromyces lactis zymocin. EMBO J 20(8):1993-2003 |
| 11) | Wittschieben BO, et al. (2000) Overlapping roles for the histone acetyltransferase activities of SAGA and elongator in vivo. EMBO J 19(12):3060-8 |
| 12) | Klassen R and Meinhardt F (2003) Structural and functional analysis of the killer element pPin1-3 from Pichia inositovora. Mol Genet Genomics 270(2):190-9 |






