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Identification
HMDB Protein ID HMDBP12787
Secondary Accession Numbers None
Name Parafibromin
Synonyms
  1. Cell division cycle protein 73 homolog
  2. Hyperparathyroidism 2 protein
Gene Name CDC73
Protein Type Unknown
Biological Properties
General Function Not Available
Specific Function Tumor suppressor probably involved in transcriptional and post-transcriptional control pathways. May be involved in cell cycle progression through the regulation of cyclin D1/PRAD1 expression. Component of the PAF1 complex (PAF1C) which has multiple functions during transcription by RNA polymerase II and is implicated in regulation of development and maintenance of embryonic stem cell pluripotency. PAF1C associates with RNA polymerase II through interaction with POLR2A CTD non-phosphorylated and 'Ser-2'- and 'Ser-5'-phosphorylated forms and is involved in transcriptional elongation, acting both independently and synergistically with TCEA1 and in cooperation with the DSIF complex and HTATSF1. PAF1C is required for transcription of Hox and Wnt target genes. PAF1C is involved in hematopoiesis and stimulates transcriptional activity of KMT2A/MLL1; it promotes leukemogenesis through association with KMT2A/MLL1-rearranged oncoproteins, such as KMT2A/MLL1-MLLT3/AF9 and KMT2A/MLL1-MLLT1/ENL. PAF1C is involved in histone modifications such as ubiquitination of histone H2B and methylation on histone H3 'Lys-4' (H3K4me3). PAF1C recruits the RNF20/40 E3 ubiquitin-protein ligase complex and the E2 enzyme UBE2A or UBE2B to chromatin which mediate monoubiquitination of 'Lys-120' of histone H2B (H2BK120ub1); UB2A/B-mediated H2B ubiquitination is proposed to be coupled to transcription. PAF1C is involved in mRNA 3' end formation probably through association with cleavage and poly(A) factors. In case of infection by influenza A strain H3N2, PAF1C associates with viral NS1 protein, thereby regulating gene transcription. Connects PAF1C with the cleavage and polyadenylation specificity factor (CPSF) complex and the cleavage stimulation factor (CSTF) complex, and with Wnt signaling. Involved in polyadenylation of mRNA precursors.
Pathways Not Available
Reactions Not Available
GO Classification
Biological Process
regulation of cell growth
cell cycle
transcription from RNA polymerase II promoter
beta-catenin-TCF complex assembly
endodermal cell fate commitment
negative regulation of myeloid cell differentiation
positive regulation of cell cycle G1/S phase transition
positive regulation of mRNA 3'-end processing
positive regulation of transcription elongation from RNA polymerase II promoter
recruitment of 3'-end processing factors to RNA polymerase II holoenzyme complex
negative regulation of apoptotic process
negative regulation of fibroblast proliferation
negative regulation of epithelial cell proliferation
histone H2B ubiquitination
histone monoubiquitination
cellular response to lipopolysaccharide
Wnt receptor signaling pathway
negative regulation of G1/S transition of mitotic cell cycle
negative regulation of transcription from RNA polymerase II promoter
mRNA polyadenylation
negative regulation of cell proliferation
stem cell maintenance
transcription elongation from RNA polymerase II promoter
positive regulation of Wnt receptor signaling pathway
protein destabilization
protein ubiquitination
Cellular Component
cytosol
Cdc73/Paf1 complex
nucleus
nucleoplasm
chromosome, telomeric region
Molecular Function
RNA polymerase II core binding
Cellular Location Not Available
Gene Properties
Chromosome Location Not Available
Locus Not Available
SNPs Not Available
Gene Sequence Not Available
Protein Properties
Number of Residues 531
Molecular Weight 60576.11
Theoretical pI 9.617
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence Not Available
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID Q6P1J9
UniProtKB/Swiss-Prot Entry Name CDC73_HUMAN
PDB IDs
GenBank Gene ID Not Available
GeneCard ID Not Available
GenAtlas ID Not Available
HGNC ID Not Available
References
General References
  1. 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, Yamamoto J, Saito K, Kawai Y, Isono Y, Nakamura Y, Nagahari K, Murakami K, Yasuda T, Iwayanagi T, Wagatsuma M, Shiratori A, Sudo H, Hosoiri T, Kaku Y, Kodaira H, Kondo H, Sugawara M, Takahashi M, Kanda K, Yokoi T, Furuya T, Kikkawa E, Omura Y, Abe K, Kamihara K, Katsuta N, Sato K, Tanikawa M, Yamazaki M, Ninomiya K, Ishibashi T, Yamashita H, Murakawa K, Fujimori K, Tanai H, Kimata M, Watanabe M, Hiraoka S, Chiba Y, Ishida S, Ono Y, Takiguchi S, Watanabe S, Yosida M, Hotuta T, Kusano J, Kanehori K, Takahashi-Fujii A, Hara H, Tanase TO, Nomura Y, Togiya S, Komai F, Hara R, Takeuchi K, Arita M, Imose N, Musashino K, Yuuki H, Oshima A, Sasaki N, Aotsuka S, Yoshikawa Y, Matsunawa H, Ichihara T, Shiohata N, Sano S, Moriya S, Momiyama H, Satoh N, Takami S, Terashima Y, Suzuki O, Nakagawa S, Senoh A, Mizoguchi H, Goto Y, Shimizu F, Wakebe H, Hishigaki H, Watanabe T, Sugiyama A, Takemoto M, Kawakami B, Yamazaki M, Watanabe K, Kumagai A, Itakura S, Fukuzumi Y, Fujimori Y, Komiyama M, Tashiro H, Tanigami A, Fujiwara T, Ono T, Yamada K, Fujii Y, Ozaki K, Hirao M, Ohmori Y, Kawabata A, Hikiji T, Kobatake N, Inagaki H, Ikema Y, Okamoto S, Okitani R, Kawakami T, Noguchi S, Itoh T, Shigeta K, Senba T, Matsumura K, Nakajima Y, Mizuno T, Morinaga M, Sasaki M, Togashi T, Oyama M, Hata H, Watanabe M, Komatsu T, Mizushima-Sugano J, Satoh T, Shirai Y, Takahashi Y, Nakagawa K, Okumura K, Nagase T, Nomura N, Kikuchi H, Masuho Y, Yamashita R, Nakai K, Yada T, Nakamura Y, Ohara O, Isogai T, Sugano S: Complete sequencing and characterization of 21,243 full-length human cDNAs. Nat Genet. 2004 Jan;36(1):40-5. Epub 2003 Dec 21. [PubMed:14702039 ]
  2. Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. [PubMed:15489334 ]
  3. Gregory SG, Barlow KF, McLay KE, Kaul R, Swarbreck D, Dunham A, Scott CE, Howe KL, Woodfine K, Spencer CC, Jones MC, Gillson C, Searle S, Zhou Y, Kokocinski F, McDonald L, Evans R, Phillips K, Atkinson A, Cooper R, Jones C, Hall RE, Andrews TD, Lloyd C, Ainscough R, Almeida JP, Ambrose KD, Anderson F, Andrew RW, Ashwell RI, Aubin K, Babbage AK, Bagguley CL, Bailey J, Beasley H, Bethel G, Bird CP, Bray-Allen S, Brown JY, Brown AJ, Buckley D, Burton J, Bye J, Carder C, Chapman JC, Clark SY, Clarke G, Clee C, Cobley V, Collier RE, Corby N, Coville GJ, Davies J, Deadman R, Dunn M, Earthrowl M, Ellington AG, Errington H, Frankish A, Frankland J, French L, Garner P, Garnett J, Gay L, Ghori MR, Gibson R, Gilby LM, Gillett W, Glithero RJ, Grafham DV, Griffiths C, Griffiths-Jones S, Grocock R, Hammond S, Harrison ES, Hart E, Haugen E, Heath PD, Holmes S, Holt K, Howden PJ, Hunt AR, Hunt SE, Hunter G, Isherwood J, James R, Johnson C, Johnson D, Joy A, Kay M, Kershaw JK, Kibukawa M, Kimberley AM, King A, Knights AJ, Lad H, Laird G, Lawlor S, Leongamornlert DA, Lloyd DM, Loveland J, Lovell J, Lush MJ, Lyne R, Martin S, Mashreghi-Mohammadi M, Matthews L, Matthews NS, McLaren S, Milne S, Mistry S, Moore MJ, Nickerson T, O'Dell CN, Oliver K, Palmeiri A, Palmer SA, Parker A, Patel D, Pearce AV, Peck AI, Pelan S, Phelps K, Phillimore BJ, Plumb R, Rajan J, Raymond C, Rouse G, Saenphimmachak C, Sehra HK, Sheridan E, Shownkeen R, Sims S, Skuce CD, Smith M, Steward C, Subramanian S, Sycamore N, Tracey A, Tromans A, Van Helmond Z, Wall M, Wallis JM, White S, Whitehead SL, Wilkinson JE, Willey DL, Williams H, Wilming L, Wray PW, Wu Z, Coulson A, Vaudin M, Sulston JE, Durbin R, Hubbard T, Wooster R, Dunham I, Carter NP, McVean G, Ross MT, Harrow J, Olson MV, Beck S, Rogers J, Bentley DR, Banerjee R, Bryant SP, Burford DC, Burrill WD, Clegg SM, Dhami P, Dovey O, Faulkner LM, Gribble SM, Langford CF, Pandian RD, Porter KM, Prigmore E: The DNA sequence and biological annotation of human chromosome 1. Nature. 2006 May 18;441(7091):315-21. [PubMed:16710414 ]
  4. Dephoure N, Zhou C, Villen J, Beausoleil SA, Bakalarski CE, Elledge SJ, Gygi SP: A quantitative atlas of mitotic phosphorylation. Proc Natl Acad Sci U S A. 2008 Aug 5;105(31):10762-7. doi: 10.1073/pnas.0805139105. Epub 2008 Jul 31. [PubMed:18669648 ]
  5. Sood R, Bonner TI, Makalowska I, Stephan DA, Robbins CM, Connors TD, Morgenbesser SD, Su K, Faruque MU, Pinkett H, Graham C, Baxevanis AD, Klinger KW, Landes GM, Trent JM, Carpten JD: Cloning and characterization of 13 novel transcripts and the human RGS8 gene from the 1q25 region encompassing the hereditary prostate cancer (HPC1) locus. Genomics. 2001 Apr 15;73(2):211-22. [PubMed:11318611 ]
  6. Olsen JV, Vermeulen M, Santamaria A, Kumar C, Miller ML, Jensen LJ, Gnad F, Cox J, Jensen TS, Nigg EA, Brunak S, Mann M: Quantitative phosphoproteomics reveals widespread full phosphorylation site occupancy during mitosis. Sci Signal. 2010 Jan 12;3(104):ra3. doi: 10.1126/scisignal.2000475. [PubMed:20068231 ]
  7. Van Damme P, Lasa M, Polevoda B, Gazquez C, Elosegui-Artola A, Kim DS, De Juan-Pardo E, Demeyer K, Hole K, Larrea E, Timmerman E, Prieto J, Arnesen T, Sherman F, Gevaert K, Aldabe R: N-terminal acetylome analyses and functional insights of the N-terminal acetyltransferase NatB. Proc Natl Acad Sci U S A. 2012 Jul 31;109(31):12449-54. doi: 10.1073/pnas.1210303109. Epub 2012 Jul 18. [PubMed:22814378 ]
  8. Zhou H, Di Palma S, Preisinger C, Peng M, Polat AN, Heck AJ, Mohammed S: Toward a comprehensive characterization of a human cancer cell phosphoproteome. J Proteome Res. 2013 Jan 4;12(1):260-71. doi: 10.1021/pr300630k. Epub 2012 Dec 18. [PubMed:23186163 ]
  9. Burkard TR, Planyavsky M, Kaupe I, Breitwieser FP, Burckstummer T, Bennett KL, Superti-Furga G, Colinge J: Initial characterization of the human central proteome. BMC Syst Biol. 2011 Jan 26;5:17. doi: 10.1186/1752-0509-5-17. [PubMed:21269460 ]
  10. Hendriks IA, Lyon D, Young C, Jensen LJ, Vertegaal AC, Nielsen ML: Site-specific mapping of the human SUMO proteome reveals co-modification with phosphorylation. Nat Struct Mol Biol. 2017 Mar;24(3):325-336. doi: 10.1038/nsmb.3366. Epub 2017 Jan 23. [PubMed:28112733 ]
  11. Bienvenut WV, Sumpton D, Martinez A, Lilla S, Espagne C, Meinnel T, Giglione C: Comparative large scale characterization of plant versus mammal proteins reveals similar and idiosyncratic N-alpha-acetylation features. Mol Cell Proteomics. 2012 Jun;11(6):M111.015131. doi: 10.1074/mcp.M111.015131. Epub 2012 Jan 5. [PubMed:22223895 ]
  12. Hendriks IA, D'Souza RC, Yang B, Verlaan-de Vries M, Mann M, Vertegaal AC: Uncovering global SUMOylation signaling networks in a site-specific manner. Nat Struct Mol Biol. 2014 Oct;21(10):927-36. doi: 10.1038/nsmb.2890. Epub 2014 Sep 14. [PubMed:25218447 ]
  13. Rozenblatt-Rosen O, Hughes CM, Nannepaga SJ, Shanmugam KS, Copeland TD, Guszczynski T, Resau JH, Meyerson M: The parafibromin tumor suppressor protein is part of a human Paf1 complex. Mol Cell Biol. 2005 Jan;25(2):612-20. doi: 10.1128/MCB.25.2.612-620.2005. [PubMed:15632063 ]
  14. Yart A, Gstaiger M, Wirbelauer C, Pecnik M, Anastasiou D, Hess D, Krek W: The HRPT2 tumor suppressor gene product parafibromin associates with human PAF1 and RNA polymerase II. Mol Cell Biol. 2005 Jun;25(12):5052-60. doi: 10.1128/MCB.25.12.5052-5060.2005. [PubMed:15923622 ]
  15. Woodard GE, Lin L, Zhang JH, Agarwal SK, Marx SJ, Simonds WF: Parafibromin, product of the hyperparathyroidism-jaw tumor syndrome gene HRPT2, regulates cyclin D1/PRAD1 expression. Oncogene. 2005 Feb 10;24(7):1272-6. doi: 10.1038/sj.onc.1208274. [PubMed:15580289 ]
  16. Carpten JD, Robbins CM, Villablanca A, Forsberg L, Presciuttini S, Bailey-Wilson J, Simonds WF, Gillanders EM, Kennedy AM, Chen JD, Agarwal SK, Sood R, Jones MP, Moses TY, Haven C, Petillo D, Leotlela PD, Harding B, Cameron D, Pannett AA, Hoog A, Heath H 3rd, James-Newton LA, Robinson B, Zarbo RJ, Cavaco BM, Wassif W, Perrier ND, Rosen IB, Kristoffersson U, Turnpenny PD, Farnebo LO, Besser GM, Jackson CE, Morreau H, Trent JM, Thakker RV, Marx SJ, Teh BT, Larsson C, Hobbs MR: HRPT2, encoding parafibromin, is mutated in hyperparathyroidism-jaw tumor syndrome. Nat Genet. 2002 Dec;32(4):676-80. doi: 10.1038/ng1048. Epub 2002 Nov 18. [PubMed:12434154 ]
  17. Shattuck TM, Valimaki S, Obara T, Gaz RD, Clark OH, Shoback D, Wierman ME, Tojo K, Robbins CM, Carpten JD, Farnebo LO, Larsson C, Arnold A: Somatic and germ-line mutations of the HRPT2 gene in sporadic parathyroid carcinoma. N Engl J Med. 2003 Oct 30;349(18):1722-9. doi: 10.1056/NEJMoa031237. [PubMed:14585940 ]
  18. Zhang C, Kong D, Tan MH, Pappas DL Jr, Wang PF, Chen J, Farber L, Zhang N, Koo HM, Weinreich M, Williams BO, Teh BT: Parafibromin inhibits cancer cell growth and causes G1 phase arrest. Biochem Biophys Res Commun. 2006 Nov 10;350(1):17-24. doi: 10.1016/j.bbrc.2006.08.169. Epub 2006 Sep 7. [PubMed:16989776 ]
  19. Hoffmans R, Basler K: BCL9-2 binds Arm/beta-catenin in a Tyr142-independent manner and requires Pygopus for its function in Wg/Wnt signaling. Mech Dev. 2007 Jan;124(1):59-67. doi: 10.1016/j.mod.2006.09.006. Epub 2006 Sep 30. [PubMed:17113272 ]
  20. Chen Y, Yamaguchi Y, Tsugeno Y, Yamamoto J, Yamada T, Nakamura M, Hisatake K, Handa H: DSIF, the Paf1 complex, and Tat-SF1 have nonredundant, cooperative roles in RNA polymerase II elongation. Genes Dev. 2009 Dec 1;23(23):2765-77. doi: 10.1101/gad.1834709. [PubMed:19952111 ]
  21. Rozenblatt-Rosen O, Nagaike T, Francis JM, Kaneko S, Glatt KA, Hughes CM, LaFramboise T, Manley JL, Meyerson M: The tumor suppressor Cdc73 functionally associates with CPSF and CstF 3' mRNA processing factors. Proc Natl Acad Sci U S A. 2009 Jan 20;106(3):755-60. doi: 10.1073/pnas.0812023106. Epub 2009 Jan 9. [PubMed:19136632 ]
  22. Muntean AG, Tan J, Sitwala K, Huang Y, Bronstein J, Connelly JA, Basrur V, Elenitoba-Johnson KS, Hess JL: The PAF complex synergizes with MLL fusion proteins at HOX loci to promote leukemogenesis. Cancer Cell. 2010 Jun 15;17(6):609-21. doi: 10.1016/j.ccr.2010.04.012. [PubMed:20541477 ]
  23. Nagaike T, Logan C, Hotta I, Rozenblatt-Rosen O, Meyerson M, Manley JL: Transcriptional activators enhance polyadenylation of mRNA precursors. Mol Cell. 2011 Feb 18;41(4):409-18. doi: 10.1016/j.molcel.2011.01.022. [PubMed:21329879 ]
  24. Noda S, Takahashi A, Hayashi T, Tanuma S, Hatakeyama M: Determination of the catalytic activity of LEOPARD syndrome-associated SHP2 mutants toward parafibromin, a bona fide SHP2 substrate involved in Wnt signaling. Biochem Biophys Res Commun. 2016 Jan 22;469(4):1133-9. doi: 10.1016/j.bbrc.2015.12.117. Epub 2015 Dec 29. [PubMed:26742426 ]
  25. Shah PS, Link N, Jang GM, Sharp PP, Zhu T, Swaney DL, Johnson JR, Von Dollen J, Ramage HR, Satkamp L, Newton B, Huttenhain R, Petit MJ, Baum T, Everitt A, Laufman O, Tassetto M, Shales M, Stevenson E, Iglesias GN, Shokat L, Tripathi S, Balasubramaniam V, Webb LG, Aguirre S, Willsey AJ, Garcia-Sastre A, Pollard KS, Cherry S, Gamarnik AV, Marazzi I, Taunton J, Fernandez-Sesma A, Bellen HJ, Andino R, Krogan NJ: Comparative Flavivirus-Host Protein Interaction Mapping Reveals Mechanisms of Dengue and Zika Virus Pathogenesis. Cell. 2018 Dec 13;175(7):1931-1945.e18. doi: 10.1016/j.cell.2018.11.028. [PubMed:30550790 ]
  26. Howell VM, Haven CJ, Kahnoski K, Khoo SK, Petillo D, Chen J, Fleuren GJ, Robinson BG, Delbridge LW, Philips J, Nelson AE, Krause U, Hammje K, Dralle H, Hoang-Vu C, Gimm O, Marsh DJ, Morreau H, Teh BT: HRPT2 mutations are associated with malignancy in sporadic parathyroid tumours. J Med Genet. 2003 Sep;40(9):657-63. doi: 10.1136/jmg.40.9.657. [PubMed:12960210 ]
  27. Bradley KJ, Cavaco BM, Bowl MR, Harding B, Cranston T, Fratter C, Besser GM, Conceicao Pereira M, Davie MW, Dudley N, Leite V, Sadler GP, Seller A, Thakker RV: Parafibromin mutations in hereditary hyperparathyroidism syndromes and parathyroid tumours. Clin Endocrinol (Oxf). 2006 Mar;64(3):299-306. doi: 10.1111/j.1365-2265.2006.02460.x. [PubMed:16487440 ]
  28. Juhlin C, Larsson C, Yakoleva T, Leibiger I, Leibiger B, Alimov A, Weber G, Hoog A, Villablanca A: Loss of parafibromin expression in a subset of parathyroid adenomas. Endocr Relat Cancer. 2006 Jun;13(2):509-23. doi: 10.1677/erc.1.01058. [PubMed:16728578 ]
  29. Haven CJ, van Puijenbroek M, Tan MH, Teh BT, Fleuren GJ, van Wezel T, Morreau H: Identification of MEN1 and HRPT2 somatic mutations in paraffin-embedded (sporadic) parathyroid carcinomas. Clin Endocrinol (Oxf). 2007 Sep;67(3):370-6. doi: 10.1111/j.1365-2265.2007.02894.x. Epub 2007 Jun 6. [PubMed:17555500 ]
  30. Cetani F, Pardi E, Ambrogini E, Viacava P, Borsari S, Lemmi M, Cianferotti L, Miccoli P, Pinchera A, Arnold A, Marcocci C: Different somatic alterations of the HRPT2 gene in a patient with recurrent sporadic primary hyperparathyroidism carrying an HRPT2 germline mutation. Endocr Relat Cancer. 2007 Jun;14(2):493-9. doi: 10.1677/ERC-06-0092. [PubMed:17639062 ]
  31. Zhao J, Yart A, Frigerio S, Perren A, Schraml P, Weisstanner C, Stallmach T, Krek W, Moch H: Sporadic human renal tumors display frequent allelic imbalances and novel mutations of the HRPT2 gene. Oncogene. 2007 May 17;26(23):3440-9. doi: 10.1038/sj.onc.1210131. Epub 2006 Nov 27. [PubMed:17130827 ]
  32. Masi G, Barzon L, Iacobone M, Viel G, Porzionato A, Macchi V, De Caro R, Favia G, Palu G: Clinical, genetic, and histopathologic investigation of CDC73-related familial hyperparathyroidism. Endocr Relat Cancer. 2008 Dec;15(4):1115-26. doi: 10.1677/ERC-08-0066. Epub 2008 Aug 28. [PubMed:18755853 ]