background:
Gene amplification is associated with tumor stage and progression in human gliomas. Several amplified loci are identified and comprise multiple genes. The glioma amplified sequence 41 (GAS41) is an evolutionarily conserved eukaryotic protein found in diverse species. GAS41 is related to the AF-9 and ENL proteins, which are putative transcription factors in some acute leukemias, and interacts with a component of the nuclear matrix, NuMA, in interphase cells. GAS41 has a dotted staining pattern in interphase nuclei and a uniform distribution in mitotic cells. GAS41 is ubiquitously expressed, with the highest levels of expression in human brain. In neuroblastoma, GAS41 is located in the nucleoli, but not in the nucleoplasm. GAS41 also binds to the MLL fusion partner AF10, which is involved in two distinct chromosomal translocations associated with hematologic malignancy. In addition, GAS41 interacts with INI1 (Integrase Interactor), which is a human homologue of the yeast SNF5 protein, a component of the SWI/SNF complex. The GAS41 gene maps to human chromosome 12q13-q15.
Function:
Component of the NuA4 histone acetyltransferase (HAT) complex which is involved in transcriptional activation of select genes principally by acetylation of nucleosomal histones H4 and H2A. This modification may both alter nucleosome - DNA interactions and promote interaction of the modified histones with other proteins which positively regulate transcription. This complex may be required for the activation of transcriptional programs associated with oncogene and proto-oncogene mediated growth induction, tumor suppressor mediated growth arrest and replicative senescence, apoptosis, and DNA repair. NuA4 may also play a direct role in DNA repair when recruited to sites of DNA damage.
Subunit:
Component of numerous complexes with chromatin remodeling and histone acetyltransferase activity. Component of the NuA4 histone acetyltransferase complex which contains the catalytic subunit KAT5/TIP60 and the subunits EP400, TRRAP/PAF400, BRD8/SMAP, EPC1, DMAP1/DNMAP1, RUVBL1/TIP49, RUVBL2, ING3, actin, ACTL6A/BAF53A, MORF4L1/MRG15, MORF4L2/MRGX, MRGBP, YEATS4/GAS41, VPS72/YL1 and MEAF6. The NuA4 complex interacts with MYC and the adenovirus E1A protein. Component of a NuA4-related complex which contains EP400, TRRAP/PAF400, SRCAP, BRD8/SMAP, EPC1, DMAP1/DNMAP1, RUVBL1/TIP49, RUVBL2, actin, ACTL6A/BAF53A, VPS72 and YEATS4/GAS41. YEATS4 interacts with MLLT10/AF10. YEATS4 may also interact with the SWI/SNF component SMARCB1/BAF47, TACC1 and TACC2, and the nuclear matrix protein NUMA1.
Subcellular Location:
Nucleus.
Tissue Specificity:
Expressed in brain, heart, kidney, liver, lung, pancreas, placenta and skeletal muscle.
Similarity:
Contains 1 YEATS domain.
Database links:
Entrez Gene: 771226 Chicken
Entrez Gene: 615330 Cow
Entrez Gene: 8089 Human
Entrez Gene: 12850 Mouse
Entrez Gene: 299810 Rat
Entrez Gene: 100302361 Sheep
Entrez Gene: 398909 Xenopus laevis
Entrez Gene: 437025 Zebrafish
Omim: 602116 Human
SwissProt: O95619 Human
SwissProt: Q9CR11 Mouse
Unigene: 4029 Human
Unigene: 233529 Mouse
Unigene: 103329 Rat
Unigene: 34477 Xenopus laevis
Unigene: 88142 Zebrafish
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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