Reviewed,
UniProtKB/Swiss-Prot Q9VW15 (ASH1_DROME)
Last modified
June 16, 2009.
Version 73.
History...
Clusters with 100%,
90%,
50% identity |
Documents (2) |
Third-party data |
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Names and origin
| Protein names | Recommended name: Histone-lysine N-methyltransferase ash1 EC=2.1.1.43 Alternative name(s): Absent small and homeotic disks protein 1 Lysine N-methyltransferase 2H | ||||||
| Gene names |
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| Organism | Drosophila melanogaster (Fruit fly) [Complete proteome] | ||||||
| Taxonomic identifier | 7227 [NCBI] | ||||||
| Taxonomic lineage | Eukaryota › Metazoa › Arthropoda › Hexapoda › Insecta › Pterygota › Neoptera › Endopterygota › Diptera › Brachycera › Muscomorpha › Ephydroidea › Drosophilidae › Drosophila › Sophophora |
Protein attributes
| Sequence length | 2226 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Trithorax group (TrxG) protein that has histone methyltransferase activity. Specifically trimethylates 'Lys-4' of histone H3, a specific tag for epigenetic transcriptional activation. May also trimethylate H3 'Lys-9' and H4 'Lys-20'; however the relevance of this activity is unclear in vivo. TrxG protein are generally required to maintain the transcriptionally active state of homeotic genes throughout development. Does not act as a coactivator required for transcriptional activation, but specifically prevent inappropriate Polycomb Group (PcG) silencing of homeotic genes in cells in which they must stay transcriptionally active. Binds non-coding RNAs of trithorax response element (TRE), leading to its recruitment to the corresponding TRE in chromatin. Ref.10 Ref.11 Ref.12 Ref.13 Ref.14 |
| Catalytic activity | S-adenosyl-L-methionine + histone L-lysine = S-adenosyl-L-homocysteine + histone N(6)-methyl-L-lysine. Ref.10 Ref.11 |
| Subunit structure | Component of a large multiprotein complex disting from complexes containing ash2 or brm. Interacts with trx via its SET domain. Interacts with nej/cbp. Ref.6 Ref.7 Ref.8 Ref.9 |
| Subcellular location | Nucleus. Note: Localizes at the promoter of active genes. Ref.13 Ref.7 Ref.1 |
| Tissue specificity | Expressed throughout development but is present at higher levels during the embryonic and pupal stages than during the larval stages. During the larval stages it accumulates primarily in imaginal disks. Ref.5 |
| Developmental stage | Expressed both maternally and zygotically. During oogenesis it accumulates in the nurse cells of developing egg chambers. Ref.5 |
| Domain | The SET domain is sufficient for methyltransferase activity. Ref.11 |
| Sequence similarities | Belongs to the histone-lysine methyltransferase family. SET2 subfamily. Contains 3 A.T hook DNA-binding domains. Contains 1 AWS domain. Contains 1 BAH domain. Contains 1 PHD-type zinc finger. Contains 1 post-SET domain. Contains 1 SET domain. |
| Sequence caution | The sequence AAB01100.1 differs from that shown. Reason: Erroneous gene model prediction. The sequence AAF49140.2 differs from that shown. Reason: Erroneous gene model prediction. The sequence AAM52758.1 differs from that shown. Reason: Miscellaneous discrepancy. Contaminating sequence. Potential poly-A sequence. |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| itself | 3 | EBI-124480,EBI-124480 | ||
| Ctr1A | Q9W3X9 | 1 | EBI-124480,EBI-171893 |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 2226 | 2226 | Histone-lysine N-methyltransferase ash1 | PRO_0000259518 | |||||
Regions | |||||||||
| Domain | 1339 – 1387 | 49 | AWS | ||||||
| Domain | 1389 – 1510 | 122 | SET | ||||||
| Domain | 1514 – 1530 | 17 | Post-SET | ||||||
| Domain | 1952 – 2072 | 121 | BAH | ||||||
| DNA binding | 261 – 273 | 13 | A.T hook 1 | ||||||
| DNA binding | 1065 – 1077 | 13 | A.T hook 2 | ||||||
| DNA binding | 1095 – 1107 | 13 | A.T hook 3 | ||||||
| Zinc finger | 1857 – 1903 | 47 | PHD-type | ||||||
Amino acid modifications | |||||||||
| Modified residue | 135 | 1 | Phosphoserine Ref.15 | ||||||
| Modified residue | 136 | 1 | Phosphoserine Ref.15 | ||||||
| Modified residue | 138 | 1 | Phosphoserine Ref.15 | ||||||
| Modified residue | 200 | 1 | Phosphothreonine Ref.15 | ||||||
| Modified residue | 201 | 1 | Phosphothreonine Ref.15 | ||||||
| Modified residue | 740 | 1 | Phosphoserine Ref.15 | ||||||
| Modified residue | 831 | 1 | Phosphoserine Ref.15 | ||||||
| Modified residue | 977 | 1 | Phosphoserine Ref.15 | ||||||
Experimental info | |||||||||
| Mutagenesis | 1284 | 1 | E → K in ash1-21; induces lethality between prepupae and lae pupae stage. Abolishes histone methyltransferase activity. Ref.10 Ref.1 | ||||||
| Mutagenesis | 1473 | 1 | N → I in ash1-10; induces lethality between prepupae and lae pupae stage. Abolishes histone methyltransferase activity. Ref.10 Ref.1 | ||||||
| Sequence conflict | 163 | 1 | A → G in AAB01100. Ref.1 | ||||||
| Sequence conflict | 166 | 1 | A → G in AAB01100. Ref.1 | ||||||
| Sequence conflict | 320 | 1 | P → T in AAB01100. Ref.1 | ||||||
| Sequence conflict | 324 – 325 | 2 | SS → RR in AAB01100. Ref.1 | ||||||
| Sequence conflict | 457 | 1 | A → P in AAB01100. Ref.1 | ||||||
| Sequence conflict | 1001 | 1 | Q → K in AAM52758. Ref.4 | ||||||
| Sequence conflict | 1191 | 1 | L → V in AAB01100. Ref.1 | ||||||
| Sequence conflict | 1246 | 1 | F → L in AAB01100. Ref.1 | ||||||
| Sequence conflict | 1993 | 1 | H → Q in AAB01100. Ref.1 | ||||||
| Sequence conflict | 2031 | 1 | R → P in AAB01100. Ref.1 | ||||||
| Sequence conflict | 2034 | 1 | V → L in AAB01100. Ref.1 | ||||||
| Sequence conflict | 2038 | 1 | T → P in AAB01100. Ref.1 | ||||||
| Sequence conflict | 2041 | 1 | C → S in AAB01100. Ref.1 | ||||||
| Sequence conflict | 2044 | 1 | R → P in AAB01100. Ref.1 | ||||||
| Sequence conflict | 2145 | 1 | R → C in AAB01100. Ref.1 | ||||||
| Sequence conflict | 2169 | 1 | L → H in AAB01100. Ref.1 | ||||||
| Sequence conflict | 2181 | 1 | I → V in AAB01100. Ref.1 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "The Drosophila ash1 gene product, which is localized at specific sites on polytene chromosomes, contains a SET domain and a PHD finger." Tripoulas N., LaJeunesse D., Gildea J., Shearn A. Genetics 143:913-928(1996) [PubMed: 8725238] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], SUBCELLULAR LOCATION, MUTAGENESIS OF GLU-1284 AND ASN-1473. |
| [2] | "The genome sequence of Drosophila melanogaster." Adams M.D., Celniker S.E., Holt R.A., Evans C.A., Gocayne J.D., Amanatides P.G., Scherer S.E., Li P.W., Hoskins R.A., Galle R.F., George R.A., Lewis S.E., Richards S., Ashburner M., Henderson S.N., Sutton G.G., Wortman J.R., Yandell M.D. Venter J.C.Science 287:2185-2195(2000) [PubMed: 10731132] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Berkeley. |
| [3] | "Annotation of the Drosophila melanogaster euchromatic genome: a systematic review." Misra S., Crosby M.A., Mungall C.J., Matthews B.B., Campbell K.S., Hradecky P., Huang Y., Kaminker J.S., Millburn G.H., Prochnik S.E., Smith C.D., Tupy J.L., Whitfield E.J., Bayraktaroglu L., Berman B.P., Bettencourt B.R., Celniker S.E., de Grey A.D.N.J. Lewis S.E.Genome Biol. 3:RESEARCH0083.1-RESEARCH0083.22(2002) [PubMed: 12537572] [Abstract] Cited for: GENOME REANNOTATION. |
| [4] | "A Drosophila full-length cDNA resource." Stapleton M., Carlson J.W., Brokstein P., Yu C., Champe M., George R.A., Guarin H., Kronmiller B., Pacleb J.M., Park S., Wan K.H., Rubin G.M., Celniker S.E. Genome Biol. 3:RESEARCH0080.1-RESEARCH0080.8(2002) [PubMed: 12537569] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 1-1120. Strain: Berkeley. Tissue: Embryo. |
| [5] | "Molecular genetic analysis of the Drosophila melanogaster gene absent, small or homeotic discs1 (ash1)." Tripoulas N.A., Hersperger E., La Jeunesse D., Shearn A. Genetics 137:1027-1038(1994) [PubMed: 7982557] [Abstract] Cited for: TISSUE SPECIFICITY, DEVELOPMENTAL STAGE. |
| [6] | "The Drosophila trithorax group proteins BRM, ASH1 and ASH2 are subunits of distinct protein complexes." Papoulas O., Beek S.J., Moseley S.L., McCallum C.M., Sarte M., Shearn A., Tamkun J.W. Development 125:3955-3966(1998) [PubMed: 9735357] [Abstract] Cited for: SUBUNIT. |
| [7] | "Trithorax and ASH1 interact directly and associate with the trithorax group-responsive bxd region of the Ultrabithorax promoter." Rozovskaia T., Tillib S., Smith S., Sedkov Y., Rozenblatt-Rosen O., Petruk S., Yano T., Nakamura T., Ben-Simchon L., Gildea J., Croce C.M., Shearn A., Canaani E., Mazo A. Mol. Cell. Biol. 19:6441-6447(1999) [PubMed: 10454589] [Abstract] Cited for: SUBCELLULAR LOCATION, INTERACTION WITH TRX. |
| [8] | "Functional interaction between the coactivator Drosophila CREB-binding protein and ASH1, a member of the trithorax group of chromatin modifiers." Bantignies F., Goodman R.H., Smolik S.M. Mol. Cell. Biol. 20:9317-9330(2000) [PubMed: 11094082] [Abstract] Cited for: INTERACTION WITH NEJ. |
| [9] | "Self-association of the SET domains of human ALL-1 and of Drosophila TRITHORAX and ASH1 proteins." Rozovskaia T., Rozenblatt-Rosen O., Sedkov Y., Burakov D., Yano T., Nakamura T., Petruck S., Ben-Simchon L., Croce C.M., Mazo A., Canaani E. Oncogene 19:351-357(2000) [PubMed: 10656681] [Abstract] Cited for: INTERACTION WITH TRX. |
| [10] | "Histone methylation by the Drosophila epigenetic transcriptional regulator Ash1." Beisel C., Imhof A., Greene J., Kremmer E., Sauer F. Nature 419:857-862(2002) [PubMed: 12397363] [Abstract] Cited for: FUNCTION, ENZYME ACTIVITY, MUTAGENESIS OF GLU-1284 AND ASN-1473. |
| [11] | "ASH1, a Drosophila trithorax group protein, is required for methylation of lysine 4 residues on histone H3." Byrd K.N., Shearn A. Proc. Natl. Acad. Sci. U.S.A. 100:11535-11540(2003) [PubMed: 13679578] [Abstract] Cited for: FUNCTION, SET DOMAIN, ENZYME ACTIVITY. |
| [12] | "The histone methyltransferases Trithorax and Ash1 prevent transcriptional silencing by Polycomb group proteins." Klymenko T., Mueller J. EMBO Rep. 5:373-377(2004) [PubMed: 15031712] [Abstract] Cited for: FUNCTION. |
| [13] | "Histone trimethylation and the maintenance of transcriptional ON and OFF states by trxG and PcG proteins." Papp B., Mueller J. Genes Dev. 20:2041-2054(2006) [PubMed: 16882982] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION. |
| [14] | "Noncoding RNAs of trithorax response elements recruit Drosophila Ash1 to Ultrabithorax." Sanchez-Elsner T., Gou D., Kremmer E., Sauer F. Science 311:1118-1123(2006) [PubMed: 16497925] [Abstract] Cited for: FUNCTION, RNA-BINDING. |
| [15] | "Phosphoproteome analysis of Drosophila melanogaster embryos." Zhai B., Villen J., Beausoleil S.A., Mintseris J., Gygi S.P. J. Proteome Res. 7:1675-1682(2008) [PubMed: 18327897] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-135; SER-136; SER-138; THR-200; THR-201; SER-740; SER-831 AND SER-977, MASS SPECTROMETRY. Tissue: Embryo. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| U49439 Genomic DNA. Translation: AAB01100.1. Sequence problems. AE014296 Genomic DNA. Translation: AAF49140.2. Sequence problems. AY122246 mRNA. Translation: AAM52758.1. Sequence problems. | |
| PIR | S71490. |
| RefSeq | NP_524160.1. |
| UniGene | Dm.7698 |
3D structure databases | |
| HSSP | HSSP built from PDB template 1PEG based on UniProtKB Q8X225. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q9VW15. 5 interactions. |
Genome annotation databases | |
| Ensembl | FBgn0005386. Drosophila melanogaster. [Contig view] |
| GeneID | 40133. |
| KEGG | dme:Dmel_CG8887. |
Organism-specific databases | |
| FlyBase | FBgn0005386. ash1. |
Enzyme and pathway databases | |
| BRENDA | 2.1.1.43. 48. |
Gene expression databases | |
| ArrayExpress | Q9VW15. |
| GermOnline | CG8887. Drosophila melanogaster. |
Family and domain databases | |
| InterPro | IPR017956. AT_hook_DNA-bd_CS. IPR006560. AWS. IPR001025. BAH. IPR003616. Post-SET_Zn_bd. IPR001214. SET. IPR019786. Zinc_finger_PHD-type_CS. IPR001965. Znf_PHD. IPR019787. Znf_PHD-finger. [Graphical view] |
| Pfam | PF01426. BAH. 1 hit. PF00628. PHD. 1 hit. PF00856. SET. 1 hit. [Graphical view] |
| SMART | SM00384. AT_hook. 3 hits. SM00570. AWS. 1 hit. SM00439. BAH. 1 hit. SM00249. PHD. 1 hit. SM00508. PostSET. 1 hit. SM00317. SET. 1 hit. [Graphical view] |
| PROSITE | PS51215. AWS. 1 hit. PS51038. BAH. 1 hit. PS50868. POST_SET. 1 hit. PS50280. SET. 1 hit. PS01359. ZF_PHD_1. 1 hit. PS50016. ZF_PHD_2. False negative. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 817161. |
Entry information
| Entry name | ASH1_DROME | ||||||||
| Accession | Primary (citable) accession number: Q9VW15 Secondary accession number(s): Q24189, Q8MQX5 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | Drosophila annotation project | ||||||||
Relevant documents
| Drosophila Drosophila: entries, gene names and cross-references to FlyBase |
| SIMILARITY comments Index of protein domains and families |

Clusters with


