Gene Details:
- MSU gene ID: LOC_Os01g07120
- RAPdb gene ID: Os01g0165000
- Gene Symbol: OsDREB2A
- Genome: MSU7 , IRGSP-1.0
- Species: Oryza sativa
Functional Descriptions:
- We developed 30 transgenic T(0) rice plants overexpressing OsDREB2A which were devoid of any growth penalty or phenotypic abnormalities during stressed or non-stressed conditions.
- T(2) and T(3) transgenic lines over-expressing OsDREB2A were found to have improved survival rates under severe drought and salt stress conditions relative to non-transgenic rice plants or rice plants transformed with the empty vector control.
- Expression of OsDREB2A transcription factor confers enhanced dehydration and salt stress tolerance in rice (Oryza sativa L.).
- OsDREB2A expression was found to be markedly induced by drought and ABA treatment.
- Induced over-expression of the transcription factor OsDREB2A improves drought tolerance in rice.
- Expression of OsDREB1A and OsDREB1B was induced by cold, whereas expression of OsDREB2A was induced by dehydration and high-salt stresses.
- In this study, the rice OsDREB2A gene was isolated and expressed under the control of a stress-inducible promoter (4ABRC) to improve the abiotic stress tolerance of japonica rice variety TNG67.
- OsDREB2A expression is induced by drought, low-temperature and salt stresses.
- Here, we report the ability of OsDREB2A to regulate high-salt response in transgenic soybean.
- Overexpressing OsDREB2A in soybeans enhanced salt tolerance by accumulating osmolytes, such as soluble sugars and free proline, and improving the expression levels of some stress-responsive transcription factors and key genes.
- Overexpression of OsDREB2A in soybean might be used to improve tolerance to salt stress.
- OsDREB2A, a Rice Transcription Factor, Significantly Affects Salt Tolerance in Transgenic Soybean.
- The ZFP179 transgenic rice exhibited significantly increased tolerance to oxidative stress, the reactive oxygen species (ROS)-scavenging ability, and expression levels of a number of stress-related genes, including OsDREB2A, OsP5CS OsProT, and OsLea3 under salt stress.
- OsDREB2A, a member of the DREBP subfamily of AP2/ERF transcription factors in rice (Oryza sativa), is involved in the abiotic stress response.
- These results indicate that OsDREB2A may participate in abiotic stress by directly binding with DRE element to regulate the expression of downstream genes.
Function-related keywords:
- growth , salt , drought , salt-stress , transcription-factor , abiotic-stress , salt-tolerance , drought-tolerance , temperature , oxidative , ABA
Literature:
- Induced over-expression of the transcription factor OsDREB2A improves drought tolerance in rice . DOI: 10.1016/j.plaphy.2011.09.012 ; PMID: 22078375
- Functional analysis of a novel Cys2/His2-type zinc finger protein involved in salt tolerance in rice . DOI: 10.1093/jxb/erq120 ; PMID: 20460361
- OsDREB genes in rice, Oryza sativa L., encode transcription activators that function in drought-, high-salt- and cold-responsive gene expression . DOI: 10.1046/j.1365-313x.2003.01661.x ; PMID: 12609047
- OsDREB2A, a rice transcription factor, significantly affects salt tolerance in transgenic soybean . DOI: 10.1371/journal.pone.0083011 ; PMID: 24376625
- A R2R3-type MYB gene, OsMYB2, is involved in salt, cold, and dehydration tolerance in rice . DOI: 10.1093/jxb/err431 ; PMID: 22301384
- Salt-responsive ERF1 regulates reactive oxygen species-dependent signaling during the initial response to salt stress in rice . DOI: 10.1105/tpc.113.113068 ; PMID: 23800963
- Expression of OsDREB2A transcription factor confers enhanced dehydration and salt stress tolerance in rice (Oryza sativa L.) . DOI: 10.1007/s10529-011-0620-x ; PMID: 21528404
Related News:
Gene Resources:
Sequences:
cDNA Sequence
- >LOC_Os01g07120.2
GCCCGTGGCACAACTCGTGTGTTGACCCGCCTCGCGCTCGCCTGCCACCACCGCCACCGCCAGCGAGCTGGATGAGCCAGCAGCCGCCCCCGCCCGCGGTTGCTTCCCCTCCCCACCACGTCAAAACCCAACCCCAACCATGATGCTCCTGCGCCACCACCACCACCCCCACAGCGGCGCCGCCACCACCAGCAGCAGCTGCAGCGGCGGCGGCGGCTGTTAGAGAGGAGGGCACACACCACCACCGACACCGACACGCTCGCCATGCCACCAAGCGAGGCGGCGGCGTGAGGCGACGCAGATCTGAACGGAGGAGGAATAGGAAGAAGGGAGGAGGAGGGGAGGGAGAGGAGTTGGAAGAGTTGGAGGAGGAGGAGATCTCTTTCTTGTTCCCGCTCGATGGAGCGGGGGGAGGGGAGGAGGGGAGATTGCTCCGTGCAAGTGAGGAAGAAGAGAACGCGAAGGAAAAGCGATGGCCCTGATTCAATCGCTGAAACCATCAAGTGGTGGAAGGAGCAAAACCAGAAGCTCCAGGAGGAGAATAGCTCCAGGAAAGCGCCAGCCAAGGGGTCCAAGAAAGGGTGCATGGCTGGGAAAGGAGGTCCGGAAAATTCAAATTGTGCTTACCGCGGTGTCAGGCAACGGACATGGGGTAAGTGGGTGGCTGAGATCCGTGAACCAAACCGTGGAAGGCGCCTATGGCTAGGATCATTTCCTACTGCGCTGGAGGCTGCGCATGCATACGATGAGGCGGCAAGGGCAATGTATGGTCCCACAGCACGTGTCAATTTTGCAGATAATTCCACAGATGCCAACTCTGGCTGCACATCAGCACCTTCATTGATGATGTCTAATGGGCCGGCCACTATACCTTCTGATGAGAAGGATGAGCTGGAATCTCCTCCTTTCATCGTGGCTAATGGGCCAGCTGTGTTGTATCAGCCTGATAAGAAGGATGTGTTGGAACGTGTAGTCCCTGAGGTGCAGGATGTTAAAACAGAAGGGAGCAATGGCTTGAAACGTGTTTGTCAGGAGCGGAAGAATATGGAGGTATGTGAATCAGAAGGGATCGTTTTACACAAAGAAGTGAACATAAGTTATGATTATTTCAATGTCCATGAAGTTGTTGAGATGATAATTGTTGAATTAAGTGCTGATCAGAAAACGGAAGTACATGAAGAGTACCAAGAGGGAGATGATGGGTTTAGCCTTTTCTCCTATTAGAGTAGTAGTCATGCTGCGGGTCAATAGGAATATTTCATTCTAGCTGCTAGGGGATACTTCAAATATCTGCAACCTGAAGCTTTGTAGTCATTTACGGTTTTCGTCTTACTGGGTAATAGCTTTATATATACTATAAGCCAACTGGTACAAGAAGTTGTACTGTGTGTTGAGTGCACTGTGGTAAAAATGAATCTATATTTAATGAGCTTACTCTGTCAATATTTTTGCTTATTTTAGTGTGGTTAAACTCAGGTTAGATATTCAAAACGAGTGGCAGATACTTCAAAGACTTTAGGATCGAATTAAATTCTCAAACAGGTATATTAGGAAGTTTATTTCTGCATGCATAAAAGTATGACAAACTATGATAGTACAAATTTGCATGCATATGGAATTTTAAATACTTAAACATACTACTATCGCATTATAGCGCTCTATGGTCATTCAAAGTACCAAAAGATACATCATGGAGATTTCATAAGGGGAAGTTGCAGACATTCTCTGAATTCAAGCCTCCTTGTTTCACTGTGAAAGGTCTTCTGTTTGTTAGGCCAGTAGGTCAGCCAAATCCAGCCTCTAATCTCCCAGTCCATGGTCTTCCCTAATGCTGCACCACAGATCTTCCACCAGACGCTGTCTCCATATTCATCACGTGCGAAAATGACACCACCCTTCTTCGTGAATGGGCGATACACGGTCGAGTACCTGTCACGAAACCAGGCCCGTGGCTGAAGCAGGGAGAGCTTGGAAGGCTTTGAAGAATAAACCTCCCTTCCGTTTACACCATCATGGAGAAACCAGTTCAAGGTTGTAGTGTTTCCATGCACAGACTGTTCAAATTTCCAGGGTTTCATGGTCAGTGTGAGGCTTTCGCTGACCGATGCCTTTAGTCCAAATGTGTTTGGGGGGTCGAATGAACCTTCAATGCCCTTCTCAAGGCCAAACTCATGCGTGGGGTTGTCGGAGGACTTGCTGACTGAAACCGACAGGACATCTGATTGTTGCATAGGTGTGATTTGCAGCATAACACGTGATGGAAAGTGCTTCTCCTCAGAGCCATGTCCACGTTCAGTCATGAGGATCTCGGAGACCAAAGAGTCCACATCACACCTGAGATGAATCCACTGCGAGCTGAATCACACCTTCAAGTTGCTGATAAGTAAGCGAGAAGAGAAGGCGCTCATCCTGTGTTGGCACTGCAGGATCTTCCATGCTCATGGCAATGAGTGGGCAGTATAGCTGGACCTTCCAGAGCCCACTTGCTGAAAGAGCATATGAGAACAGTGGCGATGGCACCCCAAATGAATGGTGTGAGGATCGTTGCTCAACAATCCAGTTAGTCACTGCAAGATTCATTGTCTGCATCCATTGCTCCTCAAGGTTTGCTCCCAACATTCTGACAAAGGTCTTTGCAGCATCTTTGCACTTTGGCCCAGTCAGCTGAGTCCTCAGGGATTCGAGGCATCGACAGCGAAGAGCATGGGGAGCCTCATAGATGCAAACTAGGAAGGCCAGGGACAAGAAAACTATGTTAAACACGTCCTTTAGATTGCCATGAATCTGTGCCCTGGGAAACTGAAAGGACAGCTTTTTGTTTGGTCCGGATCTCAGCACCCAGTCCACAATGTCAACAAACAACTCTAACATCTCTTGTTCGTCTAGAGACTGCTGGGTGTATGATTTCAGGTGGACTGGTTTTGACGTCCACAGAGAAATTGGCACACGGTAATTTGCAAAGATGGAGAAGGTGACAAAGGAGGGCTGGGTGGGAGGGGTTTTGACAACTGATAGGTTCACCGATGGCTGTGATGATTCTGATGCTGATGGTGTGGGGCAGATGCAAAGGGACATGGCGTTGGAGCGCCATTGGGAGAACGGAGGCAGGTTGGTGATCCAACCCCATACATCAAGAGGTAAGCTGTGAGCCATTACGTTGTTGAAAACTTGAGCTTGTTTTGCAATGTGGGAGTATCCCAGTATTGGTGTGGTTTTATAGATGGAAGAGATGATGGTTCCTCAGATAAAATTTTGGCTCATCCATGACTGAGTCTAATGAAGCACGGCATAATTTTTGGTAAAGCGGATTCTTGGTTGTTAGAAGAGGAAATCAAGTCATTGAGCTGAGGAATCTTTGTTGTTAATTGGAGTTTGAAGAATCTTCATTTGTGCTTTGCACAGGTGCTAAAGCCAAAAGTTAACTGCTATACGGTAATATGATATATCAAACCCAAGTTGGTTGGCTAATGTTGTAGTGAAGAGAATATAACGTGGCTCTAAACAGGAAAGCTGGAAAGAACGATATGGTTGGGTGGAATGGATTAGTTTGGATGGATTCTGGATAACTCGGTTCAATAAGGGCCTAACGACACCAAATTTGTGACTTGAAGGTTAGCTTGTGTGTCGACTGGGAATTGGAACCTGATGCATCTCACTCTTTGCTTCCGTTCCGTCAAGCTTCAAGATTTACCTCTCAATCGAGTATTGCTTTATAC - >LOC_Os01g07120.1
GCCCGTGGCACAACTCGTGTGTTGACCCGCCTCGCGCTCGCCTGCCACCACCGCCACCGCCAGCGAGCTGGATGAGCCAGCAGCCGCCCCCGCCCGCGGTTGCTTCCCCTCCCCACCACGTCAAAACCCAACCCCAACCATGATGCTCCTGCGCCACCACCACCACCCCCACAGCGGCGCCGCCACCACCAGCAGCAGCTGCAGCGGCGGCGGCGGCTGTTAGAGAGGAGGGCACACACCACCACCGACACCGACACGCTCGCCATGCCACCAAGCGAGGCGGCGGCGTGAGGCGACGCAGATCTGAACGGAGGAGGAATAGGAAGAAGGGAGGAGGAGGGGAGGGAGAGGAGTTGGAAGAGTTGGAGGAGGAGGAGATCTCTTTCTTGTTCCCGCTCGATGGAGCGGGGGGAGGGGAGGAGGGGAGATTGCTCCGTGCAAGTGAGGAAGAAGAGAACGCGAAGGAAAAGCGATGGCCCTGATTCAATCGCTGAAACCATCAAGTGGTGGAAGGAGCAAAACCAGAAGCTCCAGGAGGAGAATAGCTCCAGGAAAGCGCCAGCCAAGGGGTCCAAGAAAGGGTGCATGGCTGGGAAAGGAGGTCCGGAAAATTCAAATTGTGCTTACCGCGGTGTCAGGCAACGGACATGGGGTAAGTGGGTGGCTGAGATCCGTGAACCAAACCGTGGAAGGCGCCTATGGCTAGGATCATTTCCTACTGCGCTGGAGGCTGCGCATGCATACGATGAGGCGGCAAGGGCAATGTATGGTCCCACAGCACGTGTCAATTTTGCAGATAATTCCACAGATGCCAACTCTGGCTGCACATCAGCACCTTCATTGATGATGTCTAATGGGCCGGCCACTATACCTTCTGATGAGAAGGATGAGCTGGAATCTCCTCCTTTCATCGTGGCTAATGGGCCAGCTGTGTTGTATCAGCCTGATAAGAAGGATGTGTTGGAACGTGTAGTCCCTGAGGTGCAGGATGTTAAAACAGAAGGGAGCAATGGCTTGAAACGTGTTTGTCAGGAGCGGAAGAATATGGAGGTATGTGAATCAGAAGGGATCGTTTTACACAAAGAAGTGAACATAAGTTATGATTATTTCAATGTCCATGAAGTTGTTGAGATGATAATTGTTGAATTAAGTGCTGATCAGAAAACGGAAGTACATGAAGAGTACCAAGAGGGAGATGATGGGTTTAGCCTTTTCTCCTATTAGAGTAGTAGTCATGCTGCGGGTCAATAGGAATATTTCATTCTAGCTGCTAGGGGATACTTCAAATATCTGCAACCTGAAGCTTTGTAGTCATTTACGGTTTTCGTCTTACTGGGTAATAGCTTTATATATACTATAAGCCAACTGGTACAAGAAGTTGTACTGTGTGTTGAGTGCACTGTGGTAAAAATGAATCTATATTTAATGAGCTTACTCTGTCAATATTTTTGCTTATTTTAGTGTGGTTAAACTCAGGTTAGATATTCAAAACGAGTGGCAGATACTTCAAAGACTTTAGGATCGAATTAAATTCTCAAACAGGTATATTAGGAAGTTTATTTCTGCATGCATAAAAGTATGACAAACTATGATAGTACAAATTTGCATGCATATGGAATTTTAAATACTTAAACATACTACTATCGCATTATAGCGCTCTATGGTCATTCAAAGTACCAAAAGATACATCATGGAGATTTCATAAGGGGAAGTTGCAGACATTCTCTGAATTCAAGCCTCCTTGTTTCACTGTGAAAGGTCTTCTGTTTGTTAGGCCAGTAGGTCAGCCAAATCCAGCCTCTAATCTCCCAGTCCATGGTCTTCCCTAATGCTGCACCACAGATCTTCCACCAGACGCTGTCTCCATATTCATCACGTGCGAAAATGACACCACCCTTCTTCGTGAATGGGCGATACACGGTCGAGTACCTGTCACGAAACCAGGCCCGTGGCTGAAGCAGGGAGAGCTTGGAAGGCTTTGAAGAATAAACCTCCCTTCCGTTTACACCATCATGGAGAAACCAGTTCAAGGTTGTAGTGTTTCCATGCACAGACTGTTCAAATTTCCAGGGTTTCATGGTCAGTGTGAGGCTTTCGCTGACCGATGCCTTTAGTCCAAATGTGTTTGGGGGGTCGAATGAACCTTCAATGCCCTTCTCAAGGCCAAACTCATGCGTGGGGTTGTCGGAGGACTTGCTGACTGAAACCGACAGGACATCTGATTGTTGCATAGGTGTGATTTGCAGCATAACACGTGATGGAAAGTGCTTCTCCTCAGAGCCATGTCCACGTTCAGTCATGAGGATCTCGGAGACCAAAGAGTCCACATCACACCTGAGATGAATCCACTGCGAGCTGAATCACACCTTCAAGTTGCTGATAAGTAAGCGAGAAGAGAAGGCGCTCATCCTGTGTTGGCACTGCAGGATCTTCCATGCTCATGGCAATGAGTGGGCAGTATAGCTGGACCTTCCAGAGCCCACTTGCTGAAAGAGCATATGAGAACAGTGGCGATGGCACCCCAAATGAATGGTGTGAGGATCGTTGCTCAACAATCCAGTTAGTCACTGCAAGATTCATTGTCTGCATCCATTGCTCCTCAAGGTTTGCTCCCAACATTCTGACAAAGGTCTTTGCAGCATCTTTGCACTTTGGCCCAGTCAGCTGAGTCCTCAGGGATTCGAGGCATCGACAGCGAAGAGCATGGGGAGCCTCATAGATGCAAACTAGGAAGGCCAGGGACAAGAAAACTATGTTAAACACGTCCTTTAGATTGCCATGAATCTGTGCCCTGGGAAACTGAAAGGACAGCTTTTTGTTTGGTCCGGATCTCAGCACCCAGTCCACAATGTCAACAAACAACTCTAACATCTCTTGTTCGTCTAGAGACTGCTGGGTGTATGATTTCAGGTGGACTGGTTTTGACGTCCACAGAGAAATTGGCACACGGTAATTTGCAAAGATGGAGAAGGTGACAAAGGAGGGCTGGGTGGGAGGGGTTTTGACAACTGATAGGTTCACCGATGGCTGTGATGATTCTGATGCTGATGGTGTGGGGCAGATGCAAAGGGACATGGCGTTGGAGCGCCATTGGGAGAACGGAGGCAGGTTGGTGATCCAACCCCATACATCAAGAGGTAAGCTGTGAGCCATTACGTTGTTGAAAACTTGAGCTTGTTTTGCAATGTGGGAGTATCCCAGTATTGGTGTGGTTTTATAGATGGAAGAGATGATGGTTCCTCAGATAAAATTTTGGCTCATCCATGACTGAGTCTAATGAAGCACGGCATAATTTTTGGTAAAGCGGATTCTTGGTTGTTAGAAGAGGAAATCAAGTCATTGAGCTGAGGAATCTTTGTTGTTAATTGGAGTTTGAAGAATCTTCATTTGTGCTTTGCACAGGTGCTAAAGCCAAAAGTTAACTGCTATACGGTAATATGATATATCAAACCCAAGTTGGTTGGCTAATGTTGTAGTGAAGAGAATATAACGTGGCTCTAAACAGGAAAGCTGGAAAGAACGATATGGTTGGGTGGAATGGATTAGTTTGGATGGATTCTGGATAACTCGGTTCAATAAGGGCCTAACGACACCAAATTTGTGACTTGAAGGTTAGCTTGTGTGTCGACTGGGAATTGGAACCTGATGCATCTCACTCTTTGCTTCCGTTCCGTCAAGCTTCAAGATTTACCTCTCAATCGAGTATTGCTTTATAC
CDS Sequence
- >LOC_Os01g07120.2
ATGGAGCGGGGGGAGGGGAGGAGGGGAGATTGCTCCGTGCAAGTGAGGAAGAAGAGAACGCGAAGGAAAAGCGATGGCCCTGATTCAATCGCTGAAACCATCAAGTGGTGGAAGGAGCAAAACCAGAAGCTCCAGGAGGAGAATAGCTCCAGGAAAGCGCCAGCCAAGGGGTCCAAGAAAGGGTGCATGGCTGGGAAAGGAGGTCCGGAAAATTCAAATTGTGCTTACCGCGGTGTCAGGCAACGGACATGGGGTAAGTGGGTGGCTGAGATCCGTGAACCAAACCGTGGAAGGCGCCTATGGCTAGGATCATTTCCTACTGCGCTGGAGGCTGCGCATGCATACGATGAGGCGGCAAGGGCAATGTATGGTCCCACAGCACGTGTCAATTTTGCAGATAATTCCACAGATGCCAACTCTGGCTGCACATCAGCACCTTCATTGATGATGTCTAATGGGCCGGCCACTATACCTTCTGATGAGAAGGATGAGCTGGAATCTCCTCCTTTCATCGTGGCTAATGGGCCAGCTGTGTTGTATCAGCCTGATAAGAAGGATGTGTTGGAACGTGTAGTCCCTGAGGTGCAGGATGTTAAAACAGAAGGGAGCAATGGCTTGAAACGTGTTTGTCAGGAGCGGAAGAATATGGAGGTATGTGAATCAGAAGGGATCGTTTTACACAAAGAAGTGAACATAAGTTATGATTATTTCAATGTCCATGAAGTTGTTGAGATGATAATTGTTGAATTAAGTGCTGATCAGAAAACGGAAGTACATGAAGAGTACCAAGAGGGAGATGATGGGTTTAGCCTTTTCTCCTATTAG - >LOC_Os01g07120.1
ATGGAGCGGGGGGAGGGGAGGAGGGGAGATTGCTCCGTGCAAGTGAGGAAGAAGAGAACGCGAAGGAAAAGCGATGGCCCTGATTCAATCGCTGAAACCATCAAGTGGTGGAAGGAGCAAAACCAGAAGCTCCAGGAGGAGAATAGCTCCAGGAAAGCGCCAGCCAAGGGGTCCAAGAAAGGGTGCATGGCTGGGAAAGGAGGTCCGGAAAATTCAAATTGTGCTTACCGCGGTGTCAGGCAACGGACATGGGGTAAGTGGGTGGCTGAGATCCGTGAACCAAACCGTGGAAGGCGCCTATGGCTAGGATCATTTCCTACTGCGCTGGAGGCTGCGCATGCATACGATGAGGCGGCAAGGGCAATGTATGGTCCCACAGCACGTGTCAATTTTGCAGATAATTCCACAGATGCCAACTCTGGCTGCACATCAGCACCTTCATTGATGATGTCTAATGGGCCGGCCACTATACCTTCTGATGAGAAGGATGAGCTGGAATCTCCTCCTTTCATCGTGGCTAATGGGCCAGCTGTGTTGTATCAGCCTGATAAGAAGGATGTGTTGGAACGTGTAGTCCCTGAGGTGCAGGATGTTAAAACAGAAGGGAGCAATGGCTTGAAACGTGTTTGTCAGGAGCGGAAGAATATGGAGGTATGTGAATCAGAAGGGATCGTTTTACACAAAGAAGTGAACATAAGTTATGATTATTTCAATGTCCATGAAGTTGTTGAGATGATAATTGTTGAATTAAGTGCTGATCAGAAAACGGAAGTACATGAAGAGTACCAAGAGGGAGATGATGGGTTTAGCCTTTTCTCCTATTAG
Protein Sequence
- >LOC_Os01g07120.2
MERGEGRRGDCSVQVRKKRTRRKSDGPDSIAETIKWWKEQNQKLQEENSSRKAPAKGSKKGCMAGKGGPENSNCAYRGVRQRTWGKWVAEIREPNRGRRLWLGSFPTALEAAHAYDEAARAMYGPTARVNFADNSTDANSGCTSAPSLMMSNGPATIPSDEKDELESPPFIVANGPAVLYQPDKKDVLERVVPEVQDVKTEGSNGLKRVCQERKNMEVCESEGIVLHKEVNISYDYFNVHEVVEMIIVELSADQKTEVHEEYQEGDDGFSLFSY* - >LOC_Os01g07120.1
MERGEGRRGDCSVQVRKKRTRRKSDGPDSIAETIKWWKEQNQKLQEENSSRKAPAKGSKKGCMAGKGGPENSNCAYRGVRQRTWGKWVAEIREPNRGRRLWLGSFPTALEAAHAYDEAARAMYGPTARVNFADNSTDANSGCTSAPSLMMSNGPATIPSDEKDELESPPFIVANGPAVLYQPDKKDVLERVVPEVQDVKTEGSNGLKRVCQERKNMEVCESEGIVLHKEVNISYDYFNVHEVVEMIIVELSADQKTEVHEEYQEGDDGFSLFSY*