Written | 2013-02 | Yoshito Nagano, Shu-Ichi Matsuzawa |
Hiroshima University Graduate School of Biomedical, Health Sciences, Hiroshima 734-8551, Japan (YN), Sanford-Burnham Medical Research Institute, La Jolla, CA, 92037, USA (SIM) |
Identity |
Alias (NCBI) | SIAH1A |
HGNC (Hugo) | SIAH1 |
HGNC Alias symb | hSIAH1 |
HGNC Previous name | seven in absentia homolog 1 (Drosophila) |
LocusID (NCBI) | 6477 |
Atlas_Id | 457 |
Location | 16q12.1 [Link to chromosome band 16q12] |
Location_base_pair | Starts at 48360536 and ends at 48385413 bp from pter ( according to GRCh38/hg38-Dec_2013) [Mapping SIAH1.png] |
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Map of chromosome 16 with region 16q12.1 highlighted as the location of the gene SIAH1. | |
Fusion genes (updated 2017) | Data from Atlas, Mitelman, Cosmic Fusion, Fusion Cancer, TCGA fusion databases with official HUGO symbols (see references in chromosomal bands) |
LONP2 (16q12.1) / SIAH1 (16q12.1) | PCYT1B (Xp22.11) / SIAH1 (16q12.1) | SIAH1 (16q12.1) / CREBBP (16p13.3) | |
DNA/RNA |
Note | The human Siah1 gene is composed of 2 exons, separated by an intron of roughly 14,5 kb. |
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Genomic structure and exon-intron boundaries for SIAH1. The relevant DNA sequences at exon-intron boundaries are indicated, and respective amino acid sequences are indicated below in single-letter code. The entire open reading frame of SIAH1 is in exon 2, and its initiating methionine is underlined. | |
Pseudogene | One pseudogene has been reported. |
Protein |
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Schema of Siah1 structure. Siah1 has RING domain at the N-terminus and the substrate binding domain (SBD) at the C-terminus. Some substrate proteins are recognized by this substrate binding domain directly, and receive ubiquitin-conjugation. | |
Expression | Siah1 mRNA is widely expressed in the human tissues. It is expressed at higher level in placenta, skeletal muscle and testis. |
Localisation | Siah1 protein can be localized in both cytoplasm and nucleus. |
Function | Siah1 is the mammalian homolog of Drosophia seven in absentia (SINA) protein (Carthew and Rubin, 1990). Siah1 protein plays a key role in biological processes such as the cell cycle, programmed cell death, and oncogenesis (Nemani et al., 1996). The Siah family of RING-domain proteins are components of ubiquitin ligase complexes, targeting proteins for proteasomal degradation. Numerous substrates targeted for degradation by Siah proteins have been reported; Synphilin-1 (Nagano et al., 2003), DCC (Hu et al., 1997), N-CoR (Zhang et al., 1998), BOB1/OBF1 (Boehm et al., 2001, Tiedt et al., 2001), c-Myb (Tanikawa et al., 2000), Kid (Germani et al., 2000) and CtIP (Germani et al., 2003). Siah1 expression is upregulated by p53, revealing a link between genotoxic injury and destruction of β-catenin and reduced T-cell factor/lymphoid enhancer factor (Tcf/Lef) activity (Liu et al., 2001; Jansen et al., 2009). Recent paper showed Siah1 expression facilitates ubiquitination and degradation of the tumor suppressor HIPK2 that is a key regulator of the apoptotic programme induced by DNA damage (Winter et al., 2008). It has been shown that the nuclear translocation and accumulation of GAPDH play important roles in early events leading to cell death initiation and execution (Sirover, 1999), resulting in the various degenerative diseases. Siah1 functions as a potential carrier/shuttle proteins for the induction of GAPDH nuclear translocation because of its nuclear location signal (NLS) domain in Siah1 (Hara et al., 2005). Siah1a knockout mice are growth-retarded, exhibit early lethality, and display spermatogenetic defects. They also exhibit high numbers of osteoclasts with low numbers of osteoblasts, resulting in severe osteopenia (Frew et al., 2004). |
Homology | Human: Siah2. Mouse: Siah1a, Siah1b, Siah2. |
Mutations |
Note | There is limited evidence for mutation, with only one report of a low frequency of inactivating mutations in gastric cancer (Kim et al., 2004). |
Implicated in |
Note | |
Entity | Breast cancer |
Note | Wen et al. showed that Siah1 overexpression induced cell apoptosis by up-regulating the level of Bim through the activation of the JNK signaling pathway, and the suppression of Siah1 expression increased cell invasion via the activation of the ERK signaling pathway in breast cancer cells (Wen et al., 2010a; Wen et al., 2010b). He et al. showed that overexpression of Siah1 enhanced radiation-induced apoptosis in breast cancer cells (He et al., 2010). Those data suggest that Siah1 can be a novel therapeutic target for tumor cell death. |
Entity | Leukemia |
Note | Krämer et al. showed that the leukemia fusion protein PML-RARα (promyelocytic leukemia-retinoic acid receptor α which causes acute promyelocytic leukemias, is degraded by ubiquitin-proteasome system and that their turnover critically depends on the E2-conjugase UbcH8 and Siah1. They also showed that HDAC inhibitor enhanced the degradation of leukemia fusion proteins via UbcH8-Siah1 axis and could be a new therapeutic strategy for leukemia (Krämer et al., 2008). |
Entity | Gastric cancer |
Note | Kim et al. found two missense mutations in the SIAH1 gene in gastric cancer. The two mutants revealed that impairment of β-catenin degradation pathway, increase of cyclin D1 expression, and inhibition of apoptosis in culture cells, suggesting that mutations of Siah1 gene may play an important role in the development and progression in a subset of gastric cancer through β-catenin stabilization and apoptosis block (Kim et al., 2004). |
Entity | Hepatocellular carcinoma |
Note | Matsuo et al. showed that the expression level of SIAH1 was markedly downregulated in hepatocellular carcinoma (HCC), especially in advanced stages (Matsuo et al., 2003). Okabe et al. showed that the paternally expressed gene 10 (PEG10) was an important factor in HCC progression as a substrate for Siah1 and could be a novel molecular target for treatment (Okabe et al., 2003). |
Entity | Parkinson's disease |
Note | Nagano et al. showed for the first time that Siah1 ubiquitinated α-synuclein-interacting protein, Synphilin-1, leading to degradation. These proteins are located in Lewy body, the pathological hallmark of Parkinson's disease (Nagano et al., 2003). Recent papers showed that Siah1 facilitated mono- or di-ubiquitination of α-synuclein, leading to Lewy body formation (Lee et al., 2008; Rott et al., 2008). But no mutation in Siah1 has been identified in Parkinson's disease patients (Franck et al., 2006). |
Bibliography |
Regulation of BOB.1/OBF.1 stability by SIAH. |
Boehm J, He Y, Greiner A, Staudt L, Wirth T. |
EMBO J. 2001 Aug 1;20(15):4153-62. |
PMID 11483518 |
seven in absentia, a gene required for specification of R7 cell fate in the Drosophila eye. |
Carthew RW, Rubin GM. |
Cell. 1990 Nov 2;63(3):561-77. |
PMID 2146028 |
Mutation analysis of the seven in absentia homolog 1 (SIAH1) gene in Parkinson's disease. |
Franck T, Krueger R, Woitalla D, Muller T, Engelender S, Riess O. |
J Neural Transm. 2006 Dec;113(12):1903-8. Epub 2006 Jun 6. |
PMID 16752048 |
Osteopenia in Siah1a mutant mice. |
Frew IJ, Sims NA, Quinn JM, Walkley CR, Purton LE, Bowtell DD, Gillespie MT. |
J Biol Chem. 2004 Jul 9;279(28):29583-8. Epub 2004 May 3. |
PMID 15123657 |
SIAH-1 interacts with alpha-tubulin and degrades the kinesin Kid by the proteasome pathway during mitosis. |
Germani A, Bruzzoni-Giovanelli H, Fellous A, Gisselbrecht S, Varin-Blank N, Calvo F. |
Oncogene. 2000 Dec 7;19(52):5997-6006. |
PMID 11146551 |
SIAH-1 interacts with CtIP and promotes its degradation by the proteasome pathway. |
Germani A, Prabel A, Mourah S, Podgorniak MP, Di Carlo A, Ehrlich R, Gisselbrecht S, Varin-Blank N, Calvo F, Bruzzoni-Giovanelli H. |
Oncogene. 2003 Dec 4;22(55):8845-51. |
PMID 14654780 |
S-nitrosylated GAPDH initiates apoptotic cell death by nuclear translocation following Siah1 binding. |
Hara MR, Agrawal N, Kim SF, Cascio MB, Fujimuro M, Ozeki Y, Takahashi M, Cheah JH, Tankou SK, Hester LD, Ferris CD, Hayward SD, Snyder SH, Sawa A. |
Nat Cell Biol. 2005 Jul;7(7):665-74. Epub 2005 Jun 12. |
PMID 15951807 |
Siah1 proteins enhance radiosensitivity of human breast cancer cells. |
He HT, Fokas E, You A, Engenhart-Cabillic R, An HX. |
BMC Cancer. 2010 Aug 3;10:403. doi: 10.1186/1471-2407-10-403. |
PMID 20682032 |
Mammalian homologs of seven in absentia regulate DCC via the ubiquitin-proteasome pathway. |
Hu G, Zhang S, Vidal M, Baer JL, Xu T, Fearon ER. |
Genes Dev. 1997 Oct 15;11(20):2701-14. |
PMID 9334332 |
Downregulation of SIAH2, an ubiquitin E3 ligase, is associated with resistance to endocrine therapy in breast cancer. |
Jansen MP, Ruigrok-Ritstier K, Dorssers LC, van Staveren IL, Look MP, Meijer-van Gelder ME, Sieuwerts AM, Helleman J, Sleijfer S, Klijn JG, Foekens JA, Berns EM. |
Breast Cancer Res Treat. 2009 Jul;116(2):263-71. doi: 10.1007/s10549-008-0125-z. Epub 2008 Jul 16. |
PMID 18629630 |
Inactivating mutations of the Siah-1 gene in gastric cancer. |
Kim CJ, Cho YG, Park CH, Jeong SW, Nam SW, Kim SY, Lee SH, Yoo NJ, Lee JY, Park WS. |
Oncogene. 2004 Nov 11;23(53):8591-6. |
PMID 15467739 |
Mechanism for ubiquitylation of the leukemia fusion proteins AML1-ETO and PML-RARalpha. |
Kramer OH, Muller S, Buchwald M, Reichardt S, Heinzel T. |
FASEB J. 2008 May;22(5):1369-79. Epub 2007 Dec 11. |
PMID 18073335 |
Ubiquitination of alpha-synuclein by Siah-1 promotes alpha-synuclein aggregation and apoptotic cell death. |
Lee JT, Wheeler TC, Li L, Chin LS. |
Hum Mol Genet. 2008 Mar 15;17(6):906-17. Epub 2007 Dec 7. |
PMID 18065497 |
Siah-1 mediates a novel beta-catenin degradation pathway linking p53 to the adenomatous polyposis coli protein. |
Liu J, Stevens J, Rote CA, Yost HJ, Hu Y, Neufeld KL, White RL, Matsunami N. |
Mol Cell. 2001 May;7(5):927-36. |
PMID 11389840 |
SIAH1 inactivation correlates with tumor progression in hepatocellular carcinomas. |
Matsuo K, Satoh S, Okabe H, Nomura A, Maeda T, Yamaoka Y, Ikai I. |
Genes Chromosomes Cancer. 2003 Mar;36(3):283-91. |
PMID 12557228 |
Siah-1 facilitates ubiquitination and degradation of synphilin-1. |
Nagano Y, Yamashita H, Takahashi T, Kishida S, Nakamura T, Iseki E, Hattori N, Mizuno Y, Kikuchi A, Matsumoto M. |
J Biol Chem. 2003 Dec 19;278(51):51504-14. Epub 2003 Sep 23. |
PMID 14506261 |
Activation of the human homologue of the Drosophila sina gene in apoptosis and tumor suppression. |
Nemani M, Linares-Cruz G, Bruzzoni-Giovanelli H, Roperch JP, Tuynder M, Bougueleret L, Cherif D, Medhioub M, Pasturaud P, Alvaro V, der Sarkissan H, Cazes L, Le Paslier D, Le Gall I, Israeli D, Dausset J, Sigaux F, Chumakov I, Oren M, Calvo F, Amson RB, Cohen D, Telerman A. |
Proc Natl Acad Sci U S A. 1996 Aug 20;93(17):9039-42. |
PMID 8799150 |
Involvement of PEG10 in human hepatocellular carcinogenesis through interaction with SIAH1. |
Okabe H, Satoh S, Furukawa Y, Kato T, Hasegawa S, Nakajima Y, Yamaoka Y, Nakamura Y. |
Cancer Res. 2003 Jun 15;63(12):3043-8. |
PMID 12810624 |
Monoubiquitylation of alpha-synuclein by seven in absentia homolog (SIAH) promotes its aggregation in dopaminergic cells. |
Rott R, Szargel R, Haskin J, Shani V, Shainskaya A, Manov I, Liani E, Avraham E, Engelender S. |
J Biol Chem. 2008 Feb 8;283(6):3316-28. Epub 2007 Dec 10. |
PMID 18070888 |
New insights into an old protein: the functional diversity of mammalian glyceraldehyde-3-phosphate dehydrogenase. |
Sirover MA. |
Biochim Biophys Acta. 1999 Jul 13;1432(2):159-84. |
PMID 10407139 |
p53 suppresses the c-Myb-induced activation of heat shock transcription factor 3. |
Tanikawa J, Ichikawa-Iwata E, Kanei-Ishii C, Nakai A, Matsuzawa S, Reed JC, Ishii S. |
J Biol Chem. 2000 May 19;275(20):15578-85. |
PMID 10747903 |
The RING finger protein Siah-1 regulates the level of the transcriptional coactivator OBF-1. |
Tiedt R, Bartholdy BA, Matthias G, Newell JW, Matthias P. |
EMBO J. 2001 Aug 1;20(15):4143-52. |
PMID 11483517 |
SIAH1 induced apoptosis by activation of the JNK pathway and inhibited invasion by inactivation of the ERK pathway in breast cancer cells. |
Wen YY, Yang ZQ, Song M, Li BL, Zhu JJ, Wang EH. |
Cancer Sci. 2010b Jan;101(1):73-9. doi: 10.1111/j.1349-7006.2009.01339.x. Epub 2009 Sep 2. |
PMID 19775288 |
Control of HIPK2 stability by ubiquitin ligase Siah-1 and checkpoint kinases ATM and ATR. |
Winter M, Sombroek D, Dauth I, Moehlenbrink J, Scheuermann K, Crone J, Hofmann TG. |
Nat Cell Biol. 2008 Jul;10(7):812-24. doi: 10.1038/ncb1743. Epub 2008 Jun 8. |
PMID 18536714 |
Proteasomal regulation of nuclear receptor corepressor-mediated repression. |
Zhang J, Guenther MG, Carthew RW, Lazar MA. |
Genes Dev. 1998 Jun 15;12(12):1775-80. |
PMID 9637679 |
Citation |
This paper should be referenced as such : |
Nagano, Y ; Matsuzawa, SI |
SIAH1 (siah E3 ubiquitin protein ligase 1) |
Atlas Genet Cytogenet Oncol Haematol. 2013;17(7):487-490. |
Free journal version : [ pdf ] [ DOI ] |
Other Solid tumors implicated (Data extracted from papers in the Atlas) [ 1 ] |
t(X;16)(p22;q12) PCYT1B/SIAH1
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External links |
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Last year publications | automatic search in PubMed |
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