UniProt ID | KPYK1_YEAST | |
---|---|---|
UniProt AC | P00549 | |
Protein Name | Pyruvate kinase 1 | |
Gene Name | CDC19 | |
Organism | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast). | |
Sequence Length | 500 | |
Subcellular Localization | ||
Protein Description | ||
Protein Sequence | MSRLERLTSLNVVAGSDLRRTSIIGTIGPKTNNPETLVALRKAGLNIVRMNFSHGSYEYHKSVIDNARKSEELYPGRPLAIALDTKGPEIRTGTTTNDVDYPIPPNHEMIFTTDDKYAKACDDKIMYVDYKNITKVISAGRIIYVDDGVLSFQVLEVVDDKTLKVKALNAGKICSHKGVNLPGTDVDLPALSEKDKEDLRFGVKNGVHMVFASFIRTANDVLTIREVLGEQGKDVKIIVKIENQQGVNNFDEILKVTDGVMVARGDLGIEIPAPEVLAVQKKLIAKSNLAGKPVICATQMLESMTYNPRPTRAEVSDVGNAILDGADCVMLSGETAKGNYPINAVTTMAETAVIAEQAIAYLPNYDDMRNCTPKPTSTTETVAASAVAAVFEQKAKAIIVLSTSGTTPRLVSKYRPNCPIILVTRCPRAARFSHLYRGVFPFVFEKEPVSDWTDDVEARINFGIEKAKEFGILKKGDTYVSIQGFKAGAGHSNTLQVSTV | |
Overview of Protein Modification Sites with Functional and Structural Information | ||
|
* ASA = Accessible Surface Area
Locations | Modification | Substrate Peptides & Secondary Structure |
ASA (%) | Reference | Orthologous Protein Cluster |
---|---|---|---|---|---|
2 | Acetylation | ------MSRLERLTS ------CCHHHHHHH | 45.64 | 17287358 | |
8 | Phosphorylation | MSRLERLTSLNVVAG CCHHHHHHHCEEEEC | 37.07 | 22369663 | |
9 | Phosphorylation | SRLERLTSLNVVAGS CHHHHHHHCEEEECC | 23.65 | 22369663 | |
16 | Phosphorylation | SLNVVAGSDLRRTSI HCEEEECCCHHCCEE | 24.59 | 22369663 | |
21 | Phosphorylation | AGSDLRRTSIIGTIG ECCCHHCCEEEEEEC | 20.17 | 22369663 | |
22 | Phosphorylation | GSDLRRTSIIGTIGP CCCHHCCEEEEEECC | 15.48 | 22369663 | |
26 | Phosphorylation | RRTSIIGTIGPKTNN HCCEEEEEECCCCCC | 16.62 | 22890988 | |
30 | Acetylation | IIGTIGPKTNNPETL EEEEECCCCCCHHHH | 59.68 | 24489116 | |
30 | Succinylation | IIGTIGPKTNNPETL EEEEECCCCCCHHHH | 59.68 | 23954790 | |
30 | Ubiquitination | IIGTIGPKTNNPETL EEEEECCCCCCHHHH | 59.68 | 23749301 | |
31 | Phosphorylation | IGTIGPKTNNPETLV EEEECCCCCCHHHHH | 43.28 | 21440633 | |
36 | Phosphorylation | PKTNNPETLVALRKA CCCCCHHHHHHHHHC | 27.99 | 21440633 | |
42 | 2-Hydroxyisobutyrylation | ETLVALRKAGLNIVR HHHHHHHHCCCCEEE | 47.89 | - | |
42 | Ubiquitination | ETLVALRKAGLNIVR HHHHHHHHCCCCEEE | 47.89 | 23749301 | |
53 | Phosphorylation | NIVRMNFSHGSYEYH CEEEEECCCCCHHHH | 23.18 | 22369663 | |
56 | Phosphorylation | RMNFSHGSYEYHKSV EEECCCCCHHHHHHH | 14.90 | 22369663 | |
57 | Phosphorylation | MNFSHGSYEYHKSVI EECCCCCHHHHHHHH | 25.71 | 22369663 | |
59 | Phosphorylation | FSHGSYEYHKSVIDN CCCCCHHHHHHHHHC | 13.30 | 22369663 | |
61 | 2-Hydroxyisobutyrylation | HGSYEYHKSVIDNAR CCCHHHHHHHHHCCC | 45.58 | - | |
61 | Acetylation | HGSYEYHKSVIDNAR CCCHHHHHHHHHCCC | 45.58 | 24489116 | |
61 | Succinylation | HGSYEYHKSVIDNAR CCCHHHHHHHHHCCC | 45.58 | 23954790 | |
61 | Ubiquitination | HGSYEYHKSVIDNAR CCCHHHHHHHHHCCC | 45.58 | 23749301 | |
62 | Phosphorylation | GSYEYHKSVIDNARK CCHHHHHHHHHCCCC | 15.82 | 21440633 | |
69 | 2-Hydroxyisobutyrylation | SVIDNARKSEELYPG HHHHCCCCCCCCCCC | 60.86 | - | |
69 | Acetylation | SVIDNARKSEELYPG HHHHCCCCCCCCCCC | 60.86 | 24489116 | |
69 | Ubiquitination | SVIDNARKSEELYPG HHHHCCCCCCCCCCC | 60.86 | 23749301 | |
70 | Phosphorylation | VIDNARKSEELYPGR HHHCCCCCCCCCCCC | 30.65 | 25521595 | |
74 | Phosphorylation | ARKSEELYPGRPLAI CCCCCCCCCCCCEEE | 13.61 | 21440633 | |
85 | Phosphorylation | PLAIALDTKGPEIRT CEEEEECCCCCCCCC | 38.46 | 21440633 | |
86 | 2-Hydroxyisobutyrylation | LAIALDTKGPEIRTG EEEEECCCCCCCCCC | 72.62 | - | |
86 | Acetylation | LAIALDTKGPEIRTG EEEEECCCCCCCCCC | 72.62 | 24489116 | |
86 | Succinylation | LAIALDTKGPEIRTG EEEEECCCCCCCCCC | 72.62 | 23954790 | |
86 | Ubiquitination | LAIALDTKGPEIRTG EEEEECCCCCCCCCC | 72.62 | 22817900 | |
92 | Phosphorylation | TKGPEIRTGTTTNDV CCCCCCCCCCCCCCC | 44.54 | 21440633 | |
116 | Acetylation | MIFTTDDKYAKACDD EEEECCHHHHHHCCC | 50.33 | 24489116 | |
119 | Acetylation | TTDDKYAKACDDKIM ECCHHHHHHCCCEEE | 46.59 | 24489116 | |
119 | Ubiquitination | TTDDKYAKACDDKIM ECCHHHHHHCCCEEE | 46.59 | 22817900 | |
124 | Acetylation | YAKACDDKIMYVDYK HHHHCCCEEEEECCC | 19.00 | 24489116 | |
124 | Succinylation | YAKACDDKIMYVDYK HHHHCCCEEEEECCC | 19.00 | 23954790 | |
124 | Ubiquitination | YAKACDDKIMYVDYK HHHHCCCEEEEECCC | 19.00 | 23749301 | |
127 | Phosphorylation | ACDDKIMYVDYKNIT HCCCEEEEECCCCCE | 8.14 | 21440633 | |
131 | 2-Hydroxyisobutyrylation | KIMYVDYKNITKVIS EEEEECCCCCEEEEE | 37.09 | - | |
131 | Acetylation | KIMYVDYKNITKVIS EEEEECCCCCEEEEE | 37.09 | 24489116 | |
131 | Succinylation | KIMYVDYKNITKVIS EEEEECCCCCEEEEE | 37.09 | 23954790 | |
131 | Ubiquitination | KIMYVDYKNITKVIS EEEEECCCCCEEEEE | 37.09 | 24961812 | |
134 | Phosphorylation | YVDYKNITKVISAGR EECCCCCEEEEECCE | 28.75 | 23749301 | |
135 | 2-Hydroxyisobutyrylation | VDYKNITKVISAGRI ECCCCCEEEEECCEE | 33.50 | - | |
135 | Acetylation | VDYKNITKVISAGRI ECCCCCEEEEECCEE | 33.50 | 24489116 | |
135 | Ubiquitination | VDYKNITKVISAGRI ECCCCCEEEEECCEE | 33.50 | 23749301 | |
161 | Ubiquitination | VLEVVDDKTLKVKAL EEEEECCCEEEEEEC | 51.82 | 17644757 | |
164 | 2-Hydroxyisobutyrylation | VVDDKTLKVKALNAG EECCCEEEEEECCCC | 47.09 | - | |
166 | 2-Hydroxyisobutyrylation | DDKTLKVKALNAGKI CCCEEEEEECCCCCC | 45.64 | - | |
166 | Ubiquitination | DDKTLKVKALNAGKI CCCEEEEEECCCCCC | 45.64 | 23749301 | |
172 | Acetylation | VKALNAGKICSHKGV EEECCCCCCCCCCCC | 37.82 | 25381059 | |
172 | Ubiquitination | VKALNAGKICSHKGV EEECCCCCCCCCCCC | 37.82 | 23749301 | |
177 | Acetylation | AGKICSHKGVNLPGT CCCCCCCCCCCCCCC | 48.54 | 24489116 | |
177 | Succinylation | AGKICSHKGVNLPGT CCCCCCCCCCCCCCC | 48.54 | 23954790 | |
177 | Ubiquitination | AGKICSHKGVNLPGT CCCCCCCCCCCCCCC | 48.54 | 23749301 | |
184 | Phosphorylation | KGVNLPGTDVDLPAL CCCCCCCCCCCCCCC | 30.80 | 11283598 | |
192 | Phosphorylation | DVDLPALSEKDKEDL CCCCCCCCCCCHHHH | 44.71 | 22369663 | |
194 | 2-Hydroxyisobutyrylation | DLPALSEKDKEDLRF CCCCCCCCCHHHHCC | 71.39 | - | |
194 | Acetylation | DLPALSEKDKEDLRF CCCCCCCCCHHHHCC | 71.39 | 24489116 | |
194 | Succinylation | DLPALSEKDKEDLRF CCCCCCCCCHHHHCC | 71.39 | 23954790 | |
194 | Ubiquitination | DLPALSEKDKEDLRF CCCCCCCCCHHHHCC | 71.39 | 17644757 | |
196 | 2-Hydroxyisobutyrylation | PALSEKDKEDLRFGV CCCCCCCHHHHCCCH | 65.28 | - | |
196 | Acetylation | PALSEKDKEDLRFGV CCCCCCCHHHHCCCH | 65.28 | 24489116 | |
196 | Succinylation | PALSEKDKEDLRFGV CCCCCCCHHHHCCCH | 65.28 | 23954790 | |
196 | Ubiquitination | PALSEKDKEDLRFGV CCCCCCCHHHHCCCH | 65.28 | 17644757 | |
204 | Ubiquitination | EDLRFGVKNGVHMVF HHHCCCHHCCHHHHH | 48.65 | 23749301 | |
213 | Phosphorylation | GVHMVFASFIRTAND CHHHHHHHHHHHHHH | 15.11 | 22369663 | |
217 | Phosphorylation | VFASFIRTANDVLTI HHHHHHHHHHHHEEH | 25.62 | 21440633 | |
223 | Phosphorylation | RTANDVLTIREVLGE HHHHHHEEHHHHHHC | 20.17 | 28889911 | |
233 | 2-Hydroxyisobutyrylation | EVLGEQGKDVKIIVK HHHHCCCCEEEEEEE | 60.07 | - | |
233 | Acetylation | EVLGEQGKDVKIIVK HHHHCCCCEEEEEEE | 60.07 | 24489116 | |
233 | Succinylation | EVLGEQGKDVKIIVK HHHHCCCCEEEEEEE | 60.07 | 23954790 | |
233 | Ubiquitination | EVLGEQGKDVKIIVK HHHHCCCCEEEEEEE | 60.07 | 23749301 | |
236 | 2-Hydroxyisobutyrylation | GEQGKDVKIIVKIEN HCCCCEEEEEEEECC | 36.53 | - | |
236 | Acetylation | GEQGKDVKIIVKIEN HCCCCEEEEEEEECC | 36.53 | 24489116 | |
236 | Ubiquitination | GEQGKDVKIIVKIEN HCCCCEEEEEEEECC | 36.53 | 22817900 | |
240 | Acetylation | KDVKIIVKIENQQGV CEEEEEEEECCCCCC | 33.62 | 24489116 | |
240 | Succinylation | KDVKIIVKIENQQGV CEEEEEEEECCCCCC | 33.62 | 23954790 | |
240 | Ubiquitination | KDVKIIVKIENQQGV CEEEEEEEECCCCCC | 33.62 | 23749301 | |
255 | Acetylation | NNFDEILKVTDGVMV CCHHHHHEECCCEEE | 49.07 | 24489116 | |
255 | Succinylation | NNFDEILKVTDGVMV CCHHHHHEECCCEEE | 49.07 | 23954790 | |
255 | Ubiquitination | NNFDEILKVTDGVMV CCHHHHHEECCCEEE | 49.07 | 23749301 | |
257 | Phosphorylation | FDEILKVTDGVMVAR HHHHHEECCCEEEEE | 26.00 | 23749301 | |
281 | Acetylation | PEVLAVQKKLIAKSN HHHHHHHHHHHHHCC | 42.84 | 24489116 | |
281 | Succinylation | PEVLAVQKKLIAKSN HHHHHHHHHHHHHCC | 42.84 | 23954790 | |
281 | Ubiquitination | PEVLAVQKKLIAKSN HHHHHHHHHHHHHCC | 42.84 | 22817900 | |
282 | Ubiquitination | EVLAVQKKLIAKSNL HHHHHHHHHHHHCCC | 28.21 | 22817900 | |
286 | Ubiquitination | VQKKLIAKSNLAGKP HHHHHHHHCCCCCCC | 32.65 | 23749301 | |
287 | Phosphorylation | QKKLIAKSNLAGKPV HHHHHHHCCCCCCCE | 28.23 | 28889911 | |
292 | Acetylation | AKSNLAGKPVICATQ HHCCCCCCCEEEHHH | 30.42 | 24489116 | |
292 | Ubiquitination | AKSNLAGKPVICATQ HHCCCCCCCEEEHHH | 30.42 | 23749301 | |
316 | Phosphorylation | RPTRAEVSDVGNAIL CCCCEEECCHHHHHH | 20.34 | 22369663 | |
332 | Phosphorylation | GADCVMLSGETAKGN CCCEEEECCCCCCCC | 19.25 | 22369663 | |
335 | Phosphorylation | CVMLSGETAKGNYPI EEEECCCCCCCCCCC | 36.88 | 22369663 | |
337 | Ubiquitination | MLSGETAKGNYPINA EECCCCCCCCCCCCC | 55.92 | 17644757 | |
372 | Phosphorylation | YDDMRNCTPKPTSTT CHHHCCCCCCCCCCH | 37.59 | 17330950 | |
374 | Ubiquitination | DMRNCTPKPTSTTET HHCCCCCCCCCCHHH | 42.65 | 23749301 | |
376 | Phosphorylation | RNCTPKPTSTTETVA CCCCCCCCCCHHHHH | 44.85 | 17330950 | |
377 | Phosphorylation | NCTPKPTSTTETVAA CCCCCCCCCHHHHHH | 41.69 | 17330950 | |
379 | Phosphorylation | TPKPTSTTETVAASA CCCCCCCHHHHHHHH | 29.44 | 27017623 | |
385 | Phosphorylation | TTETVAASAVAAVFE CHHHHHHHHHHHHHH | 17.34 | 17330950 | |
394 | Acetylation | VAAVFEQKAKAIIVL HHHHHHHCCCEEEEE | 44.66 | 24489116 | |
394 | Ubiquitination | VAAVFEQKAKAIIVL HHHHHHHCCCEEEEE | 44.66 | 23749301 | |
396 | 2-Hydroxyisobutyrylation | AVFEQKAKAIIVLST HHHHHCCCEEEEEEC | 47.34 | - | |
396 | Ubiquitination | AVFEQKAKAIIVLST HHHHHCCCEEEEEEC | 47.34 | 23749301 | |
402 | Phosphorylation | AKAIIVLSTSGTTPR CCEEEEEECCCCCHH | 15.05 | 22369663 | |
403 | Phosphorylation | KAIIVLSTSGTTPRL CEEEEEECCCCCHHH | 27.32 | 20377248 | |
404 | Phosphorylation | AIIVLSTSGTTPRLV EEEEEECCCCCHHHH | 30.66 | 22369663 | |
406 | Phosphorylation | IVLSTSGTTPRLVSK EEEECCCCCHHHHHH | 33.13 | 25521595 | |
407 | Phosphorylation | VLSTSGTTPRLVSKY EEECCCCCHHHHHHH | 15.22 | 22369663 | |
412 | Phosphorylation | GTTPRLVSKYRPNCP CCCHHHHHHHCCCCC | 28.67 | 20377248 | |
413 | Acetylation | TTPRLVSKYRPNCPI CCHHHHHHHCCCCCE | 37.49 | 24489116 | |
413 | Ubiquitination | TTPRLVSKYRPNCPI CCHHHHHHHCCCCCE | 37.49 | 22817900 | |
414 | Phosphorylation | TPRLVSKYRPNCPII CHHHHHHHCCCCCEE | 24.64 | 21440633 | |
424 | Phosphorylation | NCPIILVTRCPRAAR CCCEEEEECCCHHHH | 24.10 | 21440633 | |
433 | Phosphorylation | CPRAARFSHLYRGVF CCHHHHHHHHHCCCC | 13.66 | 21440633 | |
446 | Acetylation | VFPFVFEKEPVSDWT CCCEEEECCCCCCCC | 56.72 | 24489116 | |
446 | Succinylation | VFPFVFEKEPVSDWT CCCEEEECCCCCCCC | 56.72 | 23954790 | |
446 | Ubiquitination | VFPFVFEKEPVSDWT CCCEEEECCCCCCCC | 56.72 | 23749301 | |
450 | Phosphorylation | VFEKEPVSDWTDDVE EEECCCCCCCCCCHH | 37.84 | 22369663 | |
453 | Phosphorylation | KEPVSDWTDDVEARI CCCCCCCCCCHHHHH | 27.58 | 22369663 | |
466 | 2-Hydroxyisobutyrylation | RINFGIEKAKEFGIL HHHCCCHHHHHCCCC | 63.94 | - | |
466 | Acetylation | RINFGIEKAKEFGIL HHHCCCHHHHHCCCC | 63.94 | 24489116 | |
466 | Succinylation | RINFGIEKAKEFGIL HHHCCCHHHHHCCCC | 63.94 | 23954790 | |
466 | Ubiquitination | RINFGIEKAKEFGIL HHHCCCHHHHHCCCC | 63.94 | 23749301 | |
468 | 2-Hydroxyisobutyrylation | NFGIEKAKEFGILKK HCCCHHHHHCCCCCC | 65.72 | - | |
468 | Acetylation | NFGIEKAKEFGILKK HCCCHHHHHCCCCCC | 65.72 | 24489116 | |
468 | Succinylation | NFGIEKAKEFGILKK HCCCHHHHHCCCCCC | 65.72 | 23954790 | |
468 | Ubiquitination | NFGIEKAKEFGILKK HCCCHHHHHCCCCCC | 65.72 | 23749301 | |
474 | 2-Hydroxyisobutyrylation | AKEFGILKKGDTYVS HHHCCCCCCCCEEEE | 53.44 | - | |
474 | Acetylation | AKEFGILKKGDTYVS HHHCCCCCCCCEEEE | 53.44 | 24489116 | |
474 | Succinylation | AKEFGILKKGDTYVS HHHCCCCCCCCEEEE | 53.44 | 23954790 | |
474 | Ubiquitination | AKEFGILKKGDTYVS HHHCCCCCCCCEEEE | 53.44 | 17644757 | |
475 | 2-Hydroxyisobutyrylation | KEFGILKKGDTYVSI HHCCCCCCCCEEEEE | 59.58 | - | |
475 | Acetylation | KEFGILKKGDTYVSI HHCCCCCCCCEEEEE | 59.58 | 22865919 | |
475 | Ubiquitination | KEFGILKKGDTYVSI HHCCCCCCCCEEEEE | 59.58 | 24961812 | |
478 | Phosphorylation | GILKKGDTYVSIQGF CCCCCCCEEEEEECE | 34.20 | 22369663 | |
479 | Phosphorylation | ILKKGDTYVSIQGFK CCCCCCEEEEEECEE | 9.28 | 22369663 | |
481 | Phosphorylation | KKGDTYVSIQGFKAG CCCCEEEEEECEECC | 9.97 | 22369663 | |
486 | 2-Hydroxyisobutyrylation | YVSIQGFKAGAGHSN EEEEECEECCCCCCC | 53.38 | - | |
486 | Acetylation | YVSIQGFKAGAGHSN EEEEECEECCCCCCC | 53.38 | 24489116 | |
486 | Ubiquitination | YVSIQGFKAGAGHSN EEEEECEECCCCCCC | 53.38 | 23749301 | |
492 | Phosphorylation | FKAGAGHSNTLQVST EECCCCCCCCEEEEC | 30.50 | 20377248 | |
494 | Phosphorylation | AGAGHSNTLQVSTV- CCCCCCCCEEEECC- | 22.91 | 20377248 | |
498 | Phosphorylation | HSNTLQVSTV----- CCCCEEEECC----- | 15.53 | 22369663 | |
499 | Phosphorylation | SNTLQVSTV------ CCCEEEECC------ | 31.23 | 20377248 |
Modified Location | Modified Residue | Modification | Type of Upstream Proteins | Gene Name of Upstream Proteins | UniProt AC of Upstream Proteins | Sources |
---|---|---|---|---|---|---|
22 | S | Phosphorylation | Kinase | PKA-FAMILY | - | GPS |
Modified Location | Modified Residue | Modification | Function | Reference | ||
---|---|---|---|---|---|---|
Oops, there are no descriptions of PTM sites of KPYK1_YEAST !! |
* Distance = the distance between SAP position and PTM sites.
Modified Location | Modification | Variant Position (Distance <= 10) |
Residue Change | SAP | Related Disease | Reference |
---|---|---|---|---|---|---|
Oops, there are no SNP-PTM records of KPYK1_YEAST !! |
Kegg Drug | ||||||
---|---|---|---|---|---|---|
DrugBank | ||||||
There are no disease associations of PTM sites. |
loading...
Phosphorylation | |
Reference | PubMed |
"A multidimensional chromatography technology for in-depthphosphoproteome analysis."; Albuquerque C.P., Smolka M.B., Payne S.H., Bafna V., Eng J., Zhou H.; Mol. Cell. Proteomics 7:1389-1396(2008). Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT THR-8; SER-9; SER-16;SER-22; THR-26; SER-53; SER-332; SER-402; THR-403; THR-407; SER-450;THR-478 AND TYR-479, AND MASS SPECTROMETRY. | |
"Proteome-wide identification of in vivo targets of DNA damagecheckpoint kinases."; Smolka M.B., Albuquerque C.P., Chen S.H., Zhou H.; Proc. Natl. Acad. Sci. U.S.A. 104:10364-10369(2007). Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-9; THR-21 AND SER-22,AND MASS SPECTROMETRY. | |
"Analysis of phosphorylation sites on proteins from Saccharomycescerevisiae by electron transfer dissociation (ETD) massspectrometry."; Chi A., Huttenhower C., Geer L.Y., Coon J.J., Syka J.E.P., Bai D.L.,Shabanowitz J., Burke D.J., Troyanskaya O.G., Hunt D.F.; Proc. Natl. Acad. Sci. U.S.A. 104:2193-2198(2007). Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT THR-8; SER-9; SER-53; SER-56AND SER-213, AND MASS SPECTROMETRY. | |
"Large-scale phosphorylation analysis of alpha-factor-arrestedSaccharomyces cerevisiae."; Li X., Gerber S.A., Rudner A.D., Beausoleil S.A., Haas W., Villen J.,Elias J.E., Gygi S.P.; J. Proteome Res. 6:1190-1197(2007). Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-9; SER-22 AND THR-478,AND MASS SPECTROMETRY. | |
"Quantitative phosphoproteomics applied to the yeast pheromonesignaling pathway."; Gruhler A., Olsen J.V., Mohammed S., Mortensen P., Faergeman N.J.,Mann M., Jensen O.N.; Mol. Cell. Proteomics 4:310-327(2005). Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-9; SER-22; THR-372;SER-402; THR-478 AND SER-498, AND MASS SPECTROMETRY. |