Reviewed,
UniProtKB/Swiss-Prot Q8IZD2 (MLL5_HUMAN)
Last modified
February 9, 2010.
Version 56.
History...
Clusters with 100%,
90%,
50% identity |
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Names and origin
| Protein names | Recommended name: Histone-lysine N-methyltransferase MLL5 EC=2.1.1.43 Alternative name(s): Myeloid/lymphoid or mixed-lineage leukemia protein 5 Lysine N-methyltransferase 2E Short name=KMT2E | ||||
| Gene names |
| ||||
| Organism | Homo sapiens (Human) [Complete proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Protein attributes
| Sequence length | 1858 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Histone methyltransferase that specifically mono- and dimethylates 'Lys-4' of histone H3 (H3K4me1 and H3K4me2). H3 'Lys-4' methylation represents a specific tag for epigenetic transcriptional activation. Key regulator of hematopoiesis involved in terminal myeloid differentiation and in the regulation of hematopoietic stem cell (HSCs) self-renewal by a mechanism that involves DNA methylation. Plays an essential role in retinoic-acid-induced granulopoiesis by acting as a coactivator of RAR-alpha (RARA) in target gene promoters. Also acts as an important cell cycle regulator, participating in cell cycle regulatory network machinery at multiple cell cycle stages. Required to suppress inappropriate expression of S-phase-promoting genes and maintain expression of determination genes in quiescent cells. Overexpression inhibits cell cycle progression, while knockdown induces cell cycle arrest at both the G1 and G2/M phases. Ref.7 Ref.9 Ref.10 |
| Catalytic activity | S-adenosyl-L-methionine + L-lysine-[histone] = S-adenosyl-L-homocysteine + N(6)-methyl-L-lysine-[histone]. |
| Subunit structure | Component of the MLL5-L complex, at least composed of MLL5, STK38, PPP1CA, PPP1CB, PPP1CC, HCFC1, ACTB and OGT. Interacts with RARA. Ref.10 |
| Subcellular location | Nucleus speckle. Note: Absent from the nucleolus. Ref.7 |
| Tissue specificity | Widely expressed in both adult and fetal tissues. Highest levels of expression observed in fetal thymus and kidney and in adult hematopoietic tissues, jejunum and cerebellum. Ref.1 |
| Post-translational modification | O-glycosylation at Thr-440 in the SET domain by OGT is essential for the histone methyltransferase and the coactivator activity toward RARA in granulopoiesis. The absence of Thr-440 glycosylation in assays done in vitro may explain why some authors did not detected any histone methyltransferase activity for this protein. |
| Sequence similarities | Belongs to the histone-lysine methyltransferase family. TRX/MLL subfamily. Contains 1 PHD-type zinc finger. Contains 1 SET domain. |
| Sequence caution | The sequence AAH01296.1 differs from that shown. Reason: Miscellaneous discrepancy. Contaminating sequence. Potential poly-A sequence starting in position 492. The sequence AAH40004.1 differs from that shown. Reason: Miscellaneous discrepancy. Contaminating sequence. Potential poly-A sequence starting in position 227. The sequence AAH53906.1 differs from that shown. Reason: Miscellaneous discrepancy. Contaminating sequence. Potential poly-A sequence starting in position 227. The sequence AAI42988.1 differs from that shown. Reason: Miscellaneous discrepancy. Contaminating sequence. Potential poly-A sequence starting in position 492. |
Ontologies
Alternative products
| This entry describes 7 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 Ref.1 Ref.2 (identifier: Q8IZD2-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 Ref.2 (identifier: Q8IZD2-2) The sequence of this isoform differs from the canonical sequence as follows: 494-573: Missing. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 3 Ref.3 Ref.5 (identifier: Q8IZD2-3) The sequence of this isoform differs from the canonical sequence as follows: 575-609: TREERKMEAILQAFARLEKREKRREQALERISTAK → VSWEASSLGLVTAALHMVIVAAFTWAFTLFFEVSE 610-1858: Missing. | ||||||
| Isoform 4 Ref.2 (identifier: Q8IZD2-4) The sequence of this isoform differs from the canonical sequence as follows: 850-865: GENKSPLLLNDSCSLP → EYFFPRKFSRNKETHL 866-1858: Missing. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 5 Ref.2 (identifier: Q8IZD2-5) The sequence of this isoform differs from the canonical sequence as follows: 1508-1653: ANTQQATSGT...PNSHQQHSVA → VFWLLGIIPH...DSKNIFLNVL 1654-1858: Missing. | ||||||
| Isoform 6 Ref.2 (identifier: Q8IZD2-6) The sequence of this isoform differs from the canonical sequence as follows: 1443-1621: PSPHLENPPK...SQNPTIHHQT → SSPSTTPSIH...ALKWTPKTFF 1622-1858: Missing. | ||||||
| Isoform 7 Ref.2 (identifier: Q8IZD2-7) The sequence of this isoform differs from the canonical sequence as follows: 1282-1323: Missing. | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1858 | 1858 | Histone-lysine N-methyltransferase MLL5 | PRO_0000341419 | |||||
Regions | |||||||||
| Domain | 328 – 451 | 124 | SET | ||||||
| Zinc finger | 118 – 166 | 49 | PHD-type | ||||||
| Coiled coil | 559 – 615 | 57 | Potential | ||||||
| Compositional bias | 1433 – 1846 | 414 | Pro-rich | ||||||
Amino acid modifications | |||||||||
| Modified residue | 1405 | 1 | Phosphoserine Ref.8 | ||||||
| Glycosylation | 440 | 1 | O-linked (GalNAc...) Ref.10 | ||||||
Natural variations | |||||||||
| Alternative sequence | 494 – 573 | 80 | Missing in isoform 2. Ref.2 | VSP_052803 | |||||
| Alternative sequence | 575 – 609 | 35 | TREER…ISTAK → VSWEASSLGLVTAALHMVIV AAFTWAFTLFFEVSE in isoform 3. Ref.3 Ref.5 | VSP_052804 | |||||
| Alternative sequence | 610 – 1858 | 1249 | Missing in isoform 3. Ref.3 Ref.5 | VSP_052805 | |||||
| Alternative sequence | 850 – 865 | 16 | GENKS…SCSLP → EYFFPRKFSRNKETHL in isoform 4. Ref.2 | VSP_052806 | |||||
| Alternative sequence | 866 – 1858 | 993 | Missing in isoform 4. Ref.2 | VSP_052807 | |||||
| Alternative sequence | 1282 – 1323 | 42 | Missing in isoform 7. Ref.2 | VSP_052808 | |||||
| Alternative sequence | 1443 – 1621 | 179 | PSPHL…IHHQT → SSPSTTPSIHRTPRSTSTTP ACCKFSTPTTPSAATFQCFG FWASYHISSSLTPPTSSRTS TFSFECSSNCTTVSLTSYTS YHFGTGTPAPAFWNRATLSI TCHRSSSPAPRTKQYSNTYC FRVLSSSWLCGPATWGSRTS AGISSAWTDSNSQSTGATNI SKQLPWVRVALKWTPKTFF in isoform 6. Ref.2 | VSP_052809 | |||||
| Alternative sequence | 1508 – 1653 | 146 | ANTQQ…QHSVA → VFWLLGIIPHQLKPYTTHLI KDLHFFLRVLIQLYHRIPHK LHIIPLWDRDPSTSLLEQGH IVHYLSQVLISSPKDQTVFQ HLLLQGSVLILALWPCHMGF KDLSRHLQCLDRFQFTEHRC HQHFKTITMGQGGIKMDSKN IFLNVL in isoform 5. Ref.2 | VSP_052810 | |||||
| Alternative sequence | 1622 – 1858 | 237 | Missing in isoform 6. Ref.2 | VSP_052811 | |||||
| Alternative sequence | 1654 – 1858 | 205 | Missing in isoform 5. Ref.2 | VSP_052812 | |||||
| Natural variant | 1424 | 1 | S → P: dbSNP rs35605511. | VAR_052656 | |||||
Experimental info | |||||||||
| Mutagenesis | 334 | 1 | S → A: Does not affect O-glycosylation by OGT. Ref.10 | ||||||
| Mutagenesis | 345 | 1 | S → A: Does not affect O-glycosylation by OGT. Ref.10 | ||||||
| Mutagenesis | 358 | 1 | Y → A: Loss of methyltransferase activity. Ref.10 | ||||||
| Mutagenesis | 386 | 1 | S → A: Does not affect O-glycosylation by OGT. Ref.10 | ||||||
| Mutagenesis | 399 | 1 | T → A: Does not affect O-glycosylation by OGT. Ref.10 | ||||||
| Mutagenesis | 410 | 1 | S → A: Does not affect O-glycosylation by OGT. Ref.10 | ||||||
| Mutagenesis | 412 | 1 | T → A: Does not affect O-glycosylation by OGT. Ref.10 | ||||||
| Mutagenesis | 425 | 1 | T → A: Does not affect O-glycosylation by OGT. Ref.10 | ||||||
| Mutagenesis | 432 | 1 | S → A: Does not affect O-glycosylation by OGT. Ref.10 | ||||||
| Mutagenesis | 435 | 1 | S → A: Does not affect O-glycosylation by OGT. Ref.10 | ||||||
| Mutagenesis | 440 | 1 | T → A: Abbolishes O-glycosylation by OGT and prevents coactivator activity toward RARA in granulopoiesis. Ref.10 | ||||||
| Mutagenesis | 441 | 1 | E → A: Loss of methyltransferase activity. Ref.10 | ||||||
| Mutagenesis | 443 | 1 | T → A: Does not affect O-glycosylation by OGT. Ref.10 | ||||||
| Sequence conflict | 496 | 1 | K → E in AAM74947. Ref.1 | ||||||
| Sequence conflict | 496 | 1 | K → E in AK000940. Ref.6 | ||||||
| Sequence conflict | 516 | 1 | T → A in AAM74947. Ref.1 | ||||||
| Sequence conflict | 516 | 1 | T → A in AK000940. Ref.6 | ||||||
| Sequence conflict | 594 | 1 | R → K in AK000940. Ref.6 | ||||||
| Sequence conflict | 1020 | 1 | V → A in AAM74947. Ref.1 | ||||||
| Sequence conflict | 1073 | 1 | R → S in AAM74947. Ref.1 | ||||||
| Sequence conflict | 1090 | 1 | S → P in AAM74947. Ref.1 | ||||||
| Sequence conflict | 1099 | 1 | F → S in AAM74947. Ref.1 | ||||||
| Sequence conflict | 1168 | 1 | E → K in AAM74947. Ref.1 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "MLL5, a homolog of Drosophila trithorax located within a segment of chromosome band 7q22 implicated in myeloid leukemia." Emerling B.M., Bonifas J., Kratz C.P., Donovan S., Taylor B.R., Green E.D., Le Beau M.M., Shannon K.M. Oncogene 21:4849-4854(2002) [PubMed: 12101424] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), TISSUE SPECIFICITY. |
| [2] | "Identification and characterization of a novel gene located in the commonly deleted region 7q22-q31.1 in myeloid leukemias." Dohner K., Obermiller R.T., Lipka D.B., Hofmann K., Habdank M., Fazekas G., Frohling S., Lichter P., Scherer S.W., Dohner H. Submitted (OCT-2003) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1 AND 2), NUCLEOTIDE SEQUENCE [MRNA] OF 624-1858 (ISOFORM 4), NUCLEOTIDE SEQUENCE [MRNA] OF 1149-1251 (ISOFORMS 1/2/4/6/7), NUCLEOTIDE SEQUENCE [MRNA] OF 1190-1355 (ISOFORM 7), NUCLEOTIDE SEQUENCE [MRNA] OF 1415-1858 (ISOFORMS 5 AND 6). Tissue: Brain and Peripheral blood leukocyte. |
| [3] | "The DNA sequence of human chromosome 7." Hillier L.W., Fulton R.S., Fulton L.A., Graves T.A., Pepin K.H., Wagner-McPherson C., Layman D., Maas J., Jaeger S., Walker R., Wylie K., Sekhon M., Becker M.C., O'Laughlin M.D., Schaller M.E., Fewell G.A., Delehaunty K.D., Miner T.L. Wilson R.K.Nature 424:157-164(2003) [PubMed: 12853948] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [5] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 3), NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 1-491. Tissue: Choriocarcinoma, Liver and Uterus. |
| [6] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed: 14702039] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 1-594. Tissue: Embryo. |
| [7] | "MLL 5 protein forms intranuclear foci, and overexpression inhibits cell cycle progression." Deng L.-W., Chiu I., Strominger J.L. Proc. Natl. Acad. Sci. U.S.A. 101:757-762(2004) [PubMed: 14718661] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION. |
| [8] | "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks." Olsen J.V., Blagoev B., Gnad F., Macek B., Kumar C., Mortensen P., Mann M. Cell 127:635-648(2006) [PubMed: 17081983] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-1405, MASS SPECTROMETRY. Tissue: Epithelium. |
| [9] | "RNA interference against mixed lineage leukemia 5 resulted in cell cycle arrest." Cheng F., Liu J., Zhou S.H., Wang X.N., Chew J.F., Deng L.-W. Int. J. Biochem. Cell Biol. 40:2472-2481(2008) [PubMed: 18573682] [Abstract] Cited for: FUNCTION. |
| [10] | "GlcNAcylation of a histone methyltransferase in retinoic-acid-induced granulopoiesis." Fujiki R., Chikanishi T., Hashiba W., Ito H., Takada I., Roeder R.G., Kitagawa H., Kato S. Nature 459:455-459(2009) [PubMed: 19377461] [Abstract] Cited for: FUNCTION, CATALYTIC ACTIVITY, IDENTIFICATION IN THE MLL5-L COMPLEX, GLYCOSYLATION AT THR-440, INTERACTION WITH RARA, MUTAGENESIS OF SER-334; SER-345; TYR-358; SER-386; THR-399; SER-410; THR-412; THR-425; SER-432; SER-435; THR-440; GLU-441 AND THR-443. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AF519459 mRNA. Translation: AAM74947.1. AY147037 mRNA. Translation: AAN17675.1. AY157990 mRNA. Translation: AAN76325.1. AY195568 mRNA. Translation: AAO47009.1. AY195569 mRNA. Translation: AAO47010.1. AY222296 mRNA. Translation: AAO64395.1. AY234382 mRNA. Translation: AAO89072.1. AY438698 mRNA. Translation: AAR13893.1. AC005065 Genomic DNA. No translation available. AC005070 Genomic DNA. No translation available. AC007384 Genomic DNA. No translation available. CH471070 Genomic DNA. Translation: EAW83356.1. BC001296 mRNA. Translation: AAH01296.1. Sequence problems. BC040004 mRNA. Translation: AAH40004.1. Sequence problems. BC053906 mRNA. Translation: AAH53906.1. Sequence problems. BC062583 mRNA. Translation: AAH62583.1. BC142987 mRNA. Translation: AAI42988.1. Sequence problems. AK000940 mRNA. No translation available. |
| IPI | IPI00337726. IPI00383482. IPI00384449. IPI00647901. IPI00895774. IPI00895784. IPI00895932. |
| RefSeq | NP_061152.3. NP_891847.1. |
| UniGene | Hs.592262 |
3D structure databases | |
| HSSP | HSSP built from PDB template 1WEM based on UniProtKB Q8C9B9. |
| SMR | Q8IZD2. Positions 107-165, 312-466, 341-469. |
| ModBase | Search... |
PTM databases | |
| PhosphoSite | Q8IZD2. |
Proteomic databases | |
| PRIDE | Q8IZD2. |
Genome annotation databases | |
| Ensembl | ENST00000257745; ENSP00000257745; ENSG00000005483; Homo sapiens. [Genome view] ENST00000311117; ENSP00000312379; ENSG00000005483; Homo sapiens. [Genome view] |
| GeneID | 55904. |
| KEGG | hsa:55904. |
| UCSC | uc003vcl.2. human. uc003vcm.1. human. |
Organism-specific databases | |
| CTD | 55904. |
| GeneCards | GC07P104441. |
| HGNC | HGNC:18541. MLL5. |
| MIM | 608444. gene. |
| PharmGKB | PA38568. |
| GenAtlas | Search... |
Phylogenomic databases | |
| HOVERGEN | Q8IZD2. |
| InParanoid | Q8IZD2. |
| OMA | PGHHVTP. |
| OrthoDB | EOG96Q9BT. |
| PhylomeDB | Q8IZD2. |
Gene expression databases | |
| ArrayExpress | Q8IZD2. |
| Bgee | Q8IZD2. |
| Genevestigator | Q8IZD2. |
Family and domain databases | |
| InterPro | IPR001214. SET_dom. IPR019786. Zinc_finger_PHD-type_CS. IPR011011. Znf_FYVE_PHD. IPR001965. Znf_PHD. IPR019787. Znf_PHD-finger. [Graphical view] |
| Pfam | PF00628. PHD. 1 hit. PF00856. SET. 1 hit. [Graphical view] |
| SMART | SM00249. PHD. 1 hit. SM00317. SET. 1 hit. [Graphical view] |
| PROSITE | PS50280. SET. 1 hit. PS01359. ZF_PHD_1. 1 hit. PS50016. ZF_PHD_2. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 61277. |
| SOURCE | Search... |
Entry information
| Entry name | MLL5_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q8IZD2 Secondary accession number(s): B6ZDE4 Q9NWE7 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 7 Human chromosome 7: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with


