Reviewed,
UniProtKB/Swiss-Prot Q3UG20 (MLL5_MOUSE)
Last modified
July 7, 2009.
Version 32.
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 MLL5 EC=2.1.1.43 Alternative name(s): Myeloid/lymphoid or mixed-lineage leukemia protein 5 homolog | ||
| Gene names |
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| Organism | Mus musculus (Mouse) | ||
| Taxonomic identifier | 10090 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus |
Protein attributes
| Sequence length | 1868 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| 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. |
| Catalytic activity | S-adenosyl-L-methionine + histone L-lysine = S-adenosyl-L-homocysteine + histone N(6)-methyl-L-lysine. |
| Subunit structure | Component of the MLL5-L complex, at least composed of MLL5, STK38, PPP1CA, PPP1CB, PPP1CC, HCFC1, ACTB and OGT. Interacts with RARA By similarity. |
| Subcellular location | Nucleus speckle By similarity. Note: Absent from the nucleolus By similarity. UniProtKB Q8IZD2 |
| Induction | Up-regulated in reversibly arrested C2C12 myoblasts. Ref.4 |
| 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 By similarity. The absence of Thr-440 glycosylation in assays done in vitro may explain why Ref.6 and Ref.8 did not detected any histone methyltransferase activity for this protein. |
| Disruption phenotype | Defects in immunity and hematopoiesis. Adult homozygous mice are obtained at reduced frequency because of postnatal lethality. Surviving animals display a variety of abnormalities, including male infertility, retarded growth and defects in multiple hematopoietic lineages. They also show increased susceptibility to spontaneous eye infections associated with a cell-autonomous impairment of neutrophil function. They exhibit a mild impairment of erythropoiesis and hematopoietic stem cells (HSCs) have impaired competitive repopulating capacity both under normal conditions and when subjected to self-renewal stimulation by NUP98-HOXA10. Homozygous HSCs show a dramatic sensitivity to DNA demethylation-induced differentiation (5-azadeoxycytidine). |
| 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 AAH36286.1 differs from that shown. Reason: Miscellaneous discrepancy. Contaminating sequence. Potential poly-A sequence starting in position 486. The sequence AAH64079.1 differs from that shown. Reason: Miscellaneous discrepancy. Contaminating sequence. Potential poly-A sequence starting in position 803. The sequence AAH89356.1 differs from that shown. Reason: Miscellaneous discrepancy. Contaminating sequence. Potential poly-A sequence starting in position 495. The sequence AAI03802.1 differs from that shown. Reason: Miscellaneous discrepancy. Contaminating sequence. Potential poly-A sequence starting in position 492. The sequence BAE28389.1 differs from that shown. Reason: Frameshift at position 12. |
Ontologies
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 Ref.2 Ref.3 (identifier: Q3UG20-1) 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. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 2 Ref.2 (identifier: Q3UG20-2) The sequence of this isoform differs from the canonical sequence as follows: 1-580: Missing. | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1868 | 1868 | Histone-lysine N-methyltransferase MLL5 | PRO_0000341420 | |||||
Regions | |||||||||
| Domain | 328 – 451 | 124 | SET | ||||||
| Zinc finger | 118 – 166 | 49 | PHD-type | ||||||
| Coiled coil | 559 – 613 | 55 | Potential | ||||||
| Compositional bias | 1549 – 1856 | 308 | Pro-rich | ||||||
Amino acid modifications | |||||||||
| Modified residue | 1410 | 1 | Phosphoserine By similarity UniProtKB Q8IZD2 | ||||||
| Glycosylation | 440 | 1 | O-linked (GalNAc...) By similarity | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 580 | 580 | Missing in isoform 2. Ref.2 | VSP_052813 | |||||
Experimental info | |||||||||
| Mutagenesis | 411 | 1 | C → A: Unable to repress cell-cycle-regulated element. | ||||||
| Sequence conflict | 62 | 1 | A → S in BAE43262. Ref.2 | ||||||
| Sequence conflict | 181 | 1 | R → I in BAE28389. Ref.2 | ||||||
| Sequence conflict | 320 | 1 | E → G in BAE28389. Ref.2 | ||||||
| Sequence conflict | 489 | 1 | R → S in BAB25186. Ref.2 | ||||||
| Sequence conflict | 512 | 1 | D → Y in BAC28936. Ref.2 | ||||||
| Sequence conflict | 550 | 1 | E → G in BAE35839. Ref.2 | ||||||
| Sequence conflict | 562 | 1 | E → G in BAE28389. Ref.2 | ||||||
| Sequence conflict | 1005 | 1 | S → R in BAC28936. Ref.2 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | The mouse genome sequencing consortium Submitted (NOV-2003) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: C57BL/6J. |
| [2] | "The transcriptional landscape of the mammalian genome." Carninci P., Kasukawa T., Katayama S., Gough J., Frith M.C., Maeda N., Oyama R., Ravasi T., Lenhard B., Wells C., Kodzius R., Shimokawa K., Bajic V.B., Brenner S.E., Batalov S., Forrest A.R., Zavolan M., Davis M.J. Hayashizaki Y.Science 309:1559-1563(2005) [PubMed: 16141072] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 1-1153 (ISOFORM 1). Strain: C57BL/6J. Tissue: Embryo, Embryonic eye, Melanoma, Pancreas and Tongue. |
| [3] | "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] OF 1-802 (ISOFORM 2), NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 1-494 (ISOFORM 1). Strain: C57BL/6, C57BL/6J and FVB/N. Tissue: Eye, Mammary gland and Mammary tumor. |
| [4] | "A gene-trap strategy identifies quiescence-induced genes in synchronized myoblasts." Sambasivan R., Pavlath G.K., Dhawan J. J. Biosci. 33:27-44(2008) [PubMed: 18376068] [Abstract] Cited for: INDUCTION. |
| [5] | "Loss of MLL5 results in pleiotropic hematopoietic defects, reduced neutrophil immune function, and extreme sensitivity to DNA demethylation." Heuser M., Yap D.B., Leung M., de Algara T.R., Tafech A., McKinney S., Dixon J., Thresher R., Colledge B., Carlton M., Humphries R.K., Aparicio S.A. Blood 113:1432-1443(2009) [PubMed: 18854576] [Abstract] Cited for: FUNCTION, DISRUPTION PHENOTYPE. |
| [6] | "Impaired function of primitive hematopoietic cells in mice lacking the Mixed-Lineage-Leukemia homolog MLL5." Madan V., Madan B., Brykczynska U., Zilbermann F., Hogeveen K., Doehner K., Doehner H., Weber O., Blum C., Rodewald H.-R., Sassone-Corsi P., Peters A.H.F.M., Fehling H.J. Blood 113:1444-1454(2009) [PubMed: 18952892] [Abstract] Cited for: FUNCTION, DISRUPTION PHENOTYPE. |
| [7] | "MLL5 contributes to hematopoietic stem cell fitness and homeostasis." Zhang Y., Wong J., Klinger M., Tran M.T., Shannon K.M., Killeen N. Blood 113:1455-1463(2009) [PubMed: 18818388] [Abstract] Cited for: FUNCTION, DISRUPTION PHENOTYPE. |
| [8] | "MLL5, a trithorax homolog, indirectly regulates H3K4 methylation, represses cyclin A2 expression, and promotes myogenic differentiation." Sebastian S., Sreenivas P., Sambasivan R., Cheedipudi S., Kandalla P., Pavlath G.K., Dhawan J. Proc. Natl. Acad. Sci. U.S.A. 106:4719-4724(2009) [PubMed: 19264965] [Abstract] Cited for: FUNCTION, MUTAGENESIS OF CYS-411. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| AC122022 Genomic DNA. No translation available. AK007682 mRNA. Translation: BAB25186.1. Different initiation. AK021284 mRNA. Translation: BAE43262.1. AK035078 mRNA. Translation: BAC28936.2. Different initiation. AK148169 mRNA. Translation: BAE28389.1. Frameshift. AK160519 mRNA. Translation: BAE35839.1. BC036286 mRNA. Translation: AAH36286.1. Sequence problems. BC064079 mRNA. Translation: AAH64079.1. Sequence problems. BC089356 mRNA. Translation: AAH89356.1. Sequence problems. BC103801 mRNA. Translation: AAI03802.1. Sequence problems. | |
| IPI | IPI00660988. IPI00896088. |
| UniGene | Mm.205190 Mm.403814 Mm.471659 |
3D structure databases | |
| ModBase | Search... |
PTM databases | |
| PhosphoSite | Q3UG20. |
Genome annotation databases | |
| Ensembl | ENSMUSG00000029004. Mus musculus. [Contig view] |
Organism-specific databases | |
| MGI | MGI:1924825. Mll5. |
Phylogenomic databases | |
| HOGENOM | Q3UG20. |
| HOVERGEN | Q3UG20. |
| OMA | Q3UG20. PGHHVTP. |
Gene expression databases | |
| ArrayExpress | Q3UG20. |
| Bgee | Q3UG20. |
Family and domain databases | |
| InterPro | IPR001214. SET. IPR019786. Zinc_finger_PHD-type_CS. 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 | |
| SOURCE | Search... |
Entry information
| Entry name | MLL5_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q3UG20 Secondary accession number(s): Q3SYI5 Q9CVK6 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
Relevant documents
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with


