UniProt ID | MEF2A_HUMAN | |
---|---|---|
UniProt AC | Q02078 | |
Protein Name | Myocyte-specific enhancer factor 2A | |
Gene Name | MEF2A | |
Organism | Homo sapiens (Human). | |
Sequence Length | 507 | |
Subcellular Localization | Nucleus . | |
Protein Description | Transcriptional activator which binds specifically to the MEF2 element, 5'-YTA[AT](4)TAR-3', found in numerous muscle-specific genes. Also involved in the activation of numerous growth factor- and stress-induced genes. Mediates cellular functions not only in skeletal and cardiac muscle development, but also in neuronal differentiation and survival. Plays diverse roles in the control of cell growth, survival and apoptosis via p38 MAPK signaling in muscle-specific and/or growth factor-related transcription. In cerebellar granule neurons, phosphorylated and sumoylated MEF2A represses transcription of NUR77 promoting synaptic differentiation. Associates with chromatin to the ZNF16 promoter.. | |
Protein Sequence | MGRKKIQITRIMDERNRQVTFTKRKFGLMKKAYELSVLCDCEIALIIFNSSNKLFQYASTDMDKVLLKYTEYNEPHESRTNSDIVEALNKKEHRGCDSPDPDTSYVLTPHTEEKYKKINEEFDNMMRNHKIAPGLPPQNFSMSVTVPVTSPNALSYTNPGSSLVSPSLAASSTLTDSSMLSPPQTTLHRNVSPGAPQRPPSTGNAGGMLSTTDLTVPNGAGSSPVGNGFVNSRASPNLIGATGANSLGKVMPTKSPPPPGGGNLGMNSRKPDLRVVIPPSSKGMMPPLSEEEELELNTQRISSSQATQPLATPVVSVTTPSLPPQGLVYSAMPTAYNTDYSLTSADLSALQGFNSPGMLSLGQVSAWQQHHLGQAALSSLVAGGQLSQGSNLSINTNQNISIKSEPISPPRDRMTPSGFQQQQQQQQQQQPPPPPQPQPQPPQPQPRQEMGRSPVDSLSSSSSSYDGSDREDPRGDFHSPIVLGRPPNTEDRESPSVKRMRMDAWVT | |
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 |
---|---|---|---|---|---|
30 (in isoform 7) | Phosphorylation | - | 39.02 | 30266825 | |
30 (in isoform 8) | Phosphorylation | - | 39.02 | 30266825 | |
36 (in isoform 7) | Phosphorylation | - | 10.91 | 26657352 | |
36 (in isoform 8) | Phosphorylation | - | 10.91 | 26657352 | |
40 (in isoform 7) | Phosphorylation | - | 28.99 | 23927012 | |
40 (in isoform 8) | Phosphorylation | - | 28.99 | 23927012 | |
43 (in isoform 7) | Phosphorylation | - | 4.80 | 28450419 | |
43 (in isoform 8) | Phosphorylation | - | 4.80 | 28450419 | |
48 (in isoform 7) | Phosphorylation | - | 6.02 | 22199227 | |
48 (in isoform 8) | Phosphorylation | - | 6.02 | 22199227 | |
59 | Phosphorylation | NKLFQYASTDMDKVL CCHHHCCCCCHHHHH | 21.72 | 15979805 | |
59 | Ubiquitination | NKLFQYASTDMDKVL CCHHHCCCCCHHHHH | 21.72 | 21890473 | |
59 | Ubiquitination | NKLFQYASTDMDKVL CCHHHCCCCCHHHHH | 21.72 | 21890473 | |
64 | Ubiquitination | YASTDMDKVLLKYTE CCCCCHHHHHHHHHC | 28.30 | - | |
64 (in isoform 1) | Ubiquitination | - | 28.30 | 21890473 | |
64 (in isoform 2) | Ubiquitination | - | 28.30 | 21890473 | |
64 (in isoform 3) | Ubiquitination | - | 28.30 | 21890473 | |
64 (in isoform 4) | Ubiquitination | - | 28.30 | 21890473 | |
64 (in isoform 5) | Ubiquitination | - | 28.30 | 21890473 | |
64 | Ubiquitination | YASTDMDKVLLKYTE CCCCCHHHHHHHHHC | 28.30 | 21890473 | |
68 | Ubiquitination | DMDKVLLKYTEYNEP CHHHHHHHHHCCCCC | 46.06 | - | |
68 (in isoform 1) | Ubiquitination | - | 46.06 | 21890473 | |
68 (in isoform 2) | Ubiquitination | - | 46.06 | 21890473 | |
68 (in isoform 3) | Ubiquitination | - | 46.06 | 21890473 | |
68 (in isoform 4) | Ubiquitination | - | 46.06 | 21890473 | |
68 (in isoform 5) | Ubiquitination | - | 46.06 | 21890473 | |
68 | Ubiquitination | DMDKVLLKYTEYNEP CHHHHHHHHHCCCCC | 46.06 | 21890473 | |
69 | Phosphorylation | MDKVLLKYTEYNEPH HHHHHHHHHCCCCCC | 12.55 | 26657352 | |
70 | Phosphorylation | DKVLLKYTEYNEPHE HHHHHHHHCCCCCCC | 30.33 | 26657352 | |
78 | Phosphorylation | EYNEPHESRTNSDIV CCCCCCCCCCCHHHH | 41.17 | 26657352 | |
98 | Phosphorylation | KEHRGCDSPDPDTSY HHHCCCCCCCCCCCC | 34.97 | 22167270 | |
98 (in isoform 2) | Phosphorylation | - | 34.97 | 30266825 | |
98 (in isoform 4) | Phosphorylation | - | 34.97 | 30266825 | |
98 (in isoform 6) | Phosphorylation | - | 34.97 | 30266825 | |
103 | Phosphorylation | CDSPDPDTSYVLTPH CCCCCCCCCCEECCC | 27.61 | 30266825 | |
104 | Phosphorylation | DSPDPDTSYVLTPHT CCCCCCCCCEECCCC | 22.18 | 23927012 | |
104 (in isoform 2) | Phosphorylation | - | 22.18 | 26657352 | |
104 (in isoform 4) | Phosphorylation | - | 22.18 | 26657352 | |
104 (in isoform 6) | Phosphorylation | - | 22.18 | 26657352 | |
105 | Phosphorylation | SPDPDTSYVLTPHTE CCCCCCCCEECCCCH | 11.11 | 23927012 | |
108 | Phosphorylation | PDTSYVLTPHTEEKY CCCCCEECCCCHHHH | 11.72 | 23927012 | |
108 (in isoform 2) | Phosphorylation | - | 11.72 | 23927012 | |
108 (in isoform 4) | Phosphorylation | - | 11.72 | 23927012 | |
108 (in isoform 6) | Phosphorylation | - | 11.72 | 23927012 | |
111 | Phosphorylation | SYVLTPHTEEKYKKI CCEECCCCHHHHHHH | 47.22 | 23927012 | |
111 (in isoform 2) | Phosphorylation | - | 47.22 | 28450419 | |
111 (in isoform 4) | Phosphorylation | - | 47.22 | 28450419 | |
111 (in isoform 6) | Phosphorylation | - | 47.22 | 28450419 | |
115 | Phosphorylation | TPHTEEKYKKINEEF CCCCHHHHHHHHHHH | 22.31 | 23312004 | |
116 (in isoform 2) | Phosphorylation | - | 59.24 | 22199227 | |
116 (in isoform 4) | Phosphorylation | - | 59.24 | 22199227 | |
116 (in isoform 6) | Phosphorylation | - | 59.24 | 22199227 | |
127 (in isoform 2) | Ubiquitination | - | 31.19 | 21890473 | |
127 (in isoform 4) | Ubiquitination | - | 31.19 | 21890473 | |
127 | Ubiquitination | EEFDNMMRNHKIAPG HHHHHHHHHCCCCCC | 31.19 | 21890473 | |
177 | Phosphorylation | ASSTLTDSSMLSPPQ CCCCCCCHHCCCCCC | 16.65 | 26074081 | |
178 | Phosphorylation | SSTLTDSSMLSPPQT CCCCCCHHCCCCCCC | 26.93 | 26074081 | |
181 | Phosphorylation | LTDSSMLSPPQTTLH CCCHHCCCCCCCEEC | 26.37 | 26074081 | |
185 | Phosphorylation | SMLSPPQTTLHRNVS HCCCCCCCEECCCCC | 36.78 | 26074081 | |
186 | Phosphorylation | MLSPPQTTLHRNVSP CCCCCCCEECCCCCC | 18.47 | 26074081 | |
192 | Phosphorylation | TTLHRNVSPGAPQRP CEECCCCCCCCCCCC | 22.59 | 26074081 | |
201 | Phosphorylation | GAPQRPPSTGNAGGM CCCCCCCCCCCCCCC | 52.18 | 26074081 | |
202 | Phosphorylation | APQRPPSTGNAGGML CCCCCCCCCCCCCCE | 39.98 | 26074081 | |
210 | Phosphorylation | GNAGGMLSTTDLTVP CCCCCCEEECCEECC | 21.99 | 26074081 | |
211 | Phosphorylation | NAGGMLSTTDLTVPN CCCCCEEECCEECCC | 21.99 | 26074081 | |
212 | Phosphorylation | AGGMLSTTDLTVPNG CCCCEEECCEECCCC | 26.15 | 26074081 | |
215 | Phosphorylation | MLSTTDLTVPNGAGS CEEECCEECCCCCCC | 36.41 | 25247763 | |
223 | Phosphorylation | VPNGAGSSPVGNGFV CCCCCCCCCCCCCCC | 23.76 | 25921289 | |
235 | Phosphorylation | GFVNSRASPNLIGAT CCCCCCCCCCCCCCC | 17.14 | 29255136 | |
246 | Phosphorylation | IGATGANSLGKVMPT CCCCCCCCCCCCCCC | 37.65 | 28555341 | |
249 | Acetylation | TGANSLGKVMPTKSP CCCCCCCCCCCCCCC | 40.42 | 19608861 | |
253 | Phosphorylation | SLGKVMPTKSPPPPG CCCCCCCCCCCCCCC | 26.51 | 23927012 | |
255 | Phosphorylation | GKVMPTKSPPPPGGG CCCCCCCCCCCCCCC | 45.15 | 29255136 | |
268 | Phosphorylation | GGNLGMNSRKPDLRV CCCCCCCCCCCCEEE | 32.56 | 23403867 | |
280 | O-linked_Glycosylation | LRVVIPPSSKGMMPP EEEECCCCCCCCCCC | 39.05 | 30059200 | |
281 | O-linked_Glycosylation | RVVIPPSSKGMMPPL EEECCCCCCCCCCCC | 38.72 | 30059200 | |
289 | Phosphorylation | KGMMPPLSEEEELEL CCCCCCCCHHHHHHH | 49.05 | 12586839 | |
304 | Phosphorylation | NTQRISSSQATQPLA HHEECCCCCCCCCCC | 19.62 | 9858528 | |
311 | Phosphorylation | SQATQPLATPVVSVT CCCCCCCCCCEEEEE | 19.28 | 9858528 | |
312 | Phosphorylation | QATQPLATPVVSVTT CCCCCCCCCEEEEEC | 25.05 | 9858528 | |
319 | Phosphorylation | TPVVSVTTPSLPPQG CCEEEEECCCCCCCC | 14.55 | 9858528 | |
347 | Phosphorylation | YSLTSADLSALQGFN CCCCHHHHHHHCCCC | 3.01 | 10849446 | |
355 | Phosphorylation | SALQGFNSPGMLSLG HHHCCCCCCCCEEHH | 22.14 | 10849446 | |
400 | Phosphorylation | SINTNQNISIKSEPI EEECCCCCEEECCCC | 3.03 | 12691662 | |
401 | Phosphorylation | INTNQNISIKSEPIS EECCCCCEEECCCCC | 31.36 | 24719451 | |
403 | Acetylation | TNQNISIKSEPISPP CCCCCEEECCCCCCC | 41.81 | 16484498 | |
403 | Sumoylation | TNQNISIKSEPISPP CCCCCEEECCCCCCC | 41.81 | - | |
403 | Sumoylation | TNQNISIKSEPISPP CCCCCEEECCCCCCC | 41.81 | - | |
404 | Phosphorylation | NQNISIKSEPISPPR CCCCEEECCCCCCCC | 47.11 | 23403867 | |
408 | Phosphorylation | SIKSEPISPPRDRMT EEECCCCCCCCCCCC | 39.30 | 23401153 | |
415 | Phosphorylation | SPPRDRMTPSGFQQQ CCCCCCCCCCHHHHH | 18.39 | 28348404 | |
417 | Phosphorylation | PRDRMTPSGFQQQQQ CCCCCCCCHHHHHHH | 42.97 | 28348404 | |
445 | Phosphorylation | QPQPPQPQPRQEMGR CCCCCCCCCCCCCCC | 40.33 | 9858528 | |
453 | Phosphorylation | PRQEMGRSPVDSLSS CCCCCCCCCCHHHCC | 24.44 | 9858528 | |
457 | Phosphorylation | MGRSPVDSLSSSSSS CCCCCCHHHCCCCCC | 30.31 | 27732954 | |
459 | Phosphorylation | RSPVDSLSSSSSSYD CCCCHHHCCCCCCCC | 31.93 | 23312004 | |
460 | Phosphorylation | SPVDSLSSSSSSYDG CCCHHHCCCCCCCCC | 39.26 | 22210691 | |
462 | Phosphorylation | VDSLSSSSSSYDGSD CHHHCCCCCCCCCCC | 25.83 | 22210691 | |
463 | Phosphorylation | DSLSSSSSSYDGSDR HHHCCCCCCCCCCCC | 34.56 | 22210691 | |
465 | Phosphorylation | LSSSSSSYDGSDRED HCCCCCCCCCCCCCC | 26.69 | 22210691 | |
468 | Phosphorylation | SSSSYDGSDREDPRG CCCCCCCCCCCCCCC | 30.51 | 22210691 | |
479 | Phosphorylation | DPRGDFHSPIVLGRP CCCCCCCCCCCCCCC | 19.13 | 23401153 | |
488 | Phosphorylation | IVLGRPPNTEDRESP CCCCCCCCCCCCCCC | 59.80 | 20068231 | |
489 | Phosphorylation | VLGRPPNTEDRESPS CCCCCCCCCCCCCCC | 45.07 | 26055452 | |
494 | Phosphorylation | PNTEDRESPSVKRMR CCCCCCCCCCHHHCC | 24.30 | 25159151 | |
496 | Phosphorylation | TEDRESPSVKRMRMD CCCCCCCCHHHCCCE | 49.93 | 25022875 | |
498 | Acetylation | DRESPSVKRMRMDAW CCCCCCHHHCCCEEC | 44.83 | 25953088 |
Modified Location | Modified Residue | Modification | Type of Upstream Proteins | Gene Name of Upstream Proteins | UniProt AC of Upstream Proteins | Sources |
---|---|---|---|---|---|---|
59 | S | Phosphorylation | Kinase | CK2 | - | Uniprot |
98 | S | Phosphorylation | Kinase | MAPK14 | Q16539 | GPS |
108 | T | Phosphorylation | Kinase | MAPK14 | Q16539 | GPS |
192 | S | Phosphorylation | Kinase | MAPK14 | Q16539 | GPS |
223 | S | Phosphorylation | Kinase | MAPK14 | Q16539 | GPS |
255 | S | Phosphorylation | Kinase | MAPK14 | Q16539 | Uniprot |
289 | S | Phosphorylation | Kinase | CSNK2A1 | P68400 | GPS |
312 | T | Phosphorylation | Kinase | MAPK7 | Q13164 | GPS |
312 | T | Phosphorylation | Kinase | P38-SUBFAMILY | - | GPS |
312 | T | Phosphorylation | Kinase | NLK | Q9UBE8 | Uniprot |
312 | T | Phosphorylation | Kinase | MAPK14 | Q16539 | GPS |
319 | T | Phosphorylation | Kinase | MK07 | Q13164 | PhosphoELM |
319 | T | Phosphorylation | Kinase | P38-SUBFAMILY | - | GPS |
319 | T | Phosphorylation | Kinase | MK14 | Q16539 | PhosphoELM |
355 | S | Phosphorylation | Kinase | MK07 | Q13164 | PhosphoELM |
355 | S | Phosphorylation | Kinase | P38-SUBFAMILY | - | GPS |
408 | S | Phosphorylation | Kinase | MAPK14 | Q16539 | GPS |
408 | S | Phosphorylation | Kinase | CDK5 | Q00535 | Uniprot |
453 | S | Phosphorylation | Kinase | MAPK14 | Q16539 | GPS |
453 | S | Phosphorylation | Kinase | MAPK-FAMILY | - | GPS |
453 | S | Phosphorylation | Kinase | P38-SUBFAMILY | - | GPS |
453 | S | Phosphorylation | Kinase | MAPK | - | Uniprot |
479 | S | Phosphorylation | Kinase | MAPK14 | Q16539 | GPS |
479 | S | Phosphorylation | Kinase | P38-SUBFAMILY | - | GPS |
494 | S | Phosphorylation | Kinase | MAPK14 | Q16539 | GPS |
Modified Location | Modified Residue | Modification | Function | Reference |
---|---|---|---|---|
4 | K | Acetylation |
| 16563226 |
312 | T | Phosphorylation |
| 9858528 |
312 | T | Phosphorylation |
| 9858528 |
319 | T | Phosphorylation |
| 9858528 |
319 | T | Phosphorylation |
| 9858528 |
355 | S | Phosphorylation |
| 9858528 |
403 | K | Acetylation |
| 16563226 |
403 | K | Sumoylation |
| 16563226 |
403 | K | Sumoylation |
| 16563226 |
403 | K | Sumoylation |
| 16563226 |
403 | K | Phosphorylation |
| 16563226 |
403 | K | Phosphorylation |
| 16563226 |
403 | K | Acetylation |
| 16563226 |
403 | K | Acetylation |
| 16563226 |
408 | S | Acetylation |
| 12586839 |
408 | S | Acetylation |
| 12586839 |
408 | S | Phosphorylation |
| 12586839 |
408 | S | Phosphorylation |
| 12586839 |
408 | S | Phosphorylation |
| 12586839 |
408 | S | Phosphorylation |
| 12586839 |
408 | S | Sumoylation |
| 12586839 |
408 | S | Sumoylation |
| 12586839 |
408 | S | Sumoylation |
| 12586839 |
* 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 MEF2A_HUMAN !! |
Kegg Disease | ||||||
---|---|---|---|---|---|---|
There are no disease associations of PTM sites. | ||||||
OMIM Disease | ||||||
608320 | Coronary artery disease, autosomal dominant, 1 (ADCAD1) | |||||
Kegg Drug | ||||||
There are no disease associations of PTM sites. | ||||||
DrugBank | ||||||
There are no disease associations of PTM sites. |
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Acetylation | |
Reference | PubMed |
"Lysine acetylation targets protein complexes and co-regulates majorcellular functions."; Choudhary C., Kumar C., Gnad F., Nielsen M.L., Rehman M., Walther T.,Olsen J.V., Mann M.; Science 325:834-840(2009). Cited for: ACETYLATION [LARGE SCALE ANALYSIS] AT LYS-249, AND MASS SPECTROMETRY. | |
Phosphorylation | |
Reference | PubMed |
"Quantitative phosphoproteomic analysis of T cell receptor signalingreveals system-wide modulation of protein-protein interactions."; Mayya V., Lundgren D.H., Hwang S.-I., Rezaul K., Wu L., Eng J.K.,Rodionov V., Han D.K.; Sci. Signal. 2:RA46-RA46(2009). Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-235, AND MASSSPECTROMETRY. | |
"A quantitative atlas of mitotic phosphorylation."; Dephoure N., Zhou C., Villen J., Beausoleil S.A., Bakalarski C.E.,Elledge S.J., Gygi S.P.; Proc. Natl. Acad. Sci. U.S.A. 105:10762-10767(2008). Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-235 AND SER-255, ANDMASS SPECTROMETRY. | |
"A calcium-regulated MEF2 sumoylation switch controls postsynapticdifferentiation."; Shalizi A., Gaudilliere B., Yuan Z., Stegmueller J., Shirogane T.,Ge Q., Tan Y., Schulman B., Harper J.W., Bonni A.; Science 311:1012-1017(2006). Cited for: PHOSPHORYLATION AT SER-408, AND FUNCTION. | |
"PDSM, a motif for phosphorylation-dependent SUMO modification."; Hietakangas V., Anckar J., Blomster H.A., Fujimoto M., Palvimo J.J.,Nakai A., Sistonen L.; Proc. Natl. Acad. Sci. U.S.A. 103:45-50(2006). Cited for: SUMOYLATION AT LYS-403, PHOSPHORYLATION AT SER-408, FUNCTION, ANDMUTAGENESIS OF LYS-403 AND SER-408. | |
"Cdk5-mediated inhibition of the protective effects of transcriptionfactor MEF2 in neurotoxicity-induced apoptosis."; Gong X., Tang X., Wiedmann M., Wang X., Peng J., Zheng D.,Blair L.A.C., Marshall J., Mao Z.; Neuron 38:33-46(2003). Cited for: PHOSPHORYLATION AT SER-408, FUNCTION, SUBCELLULAR LOCATION, ANDMUTAGENESIS OF SER-408. | |
"Phosphorylation motifs regulating the stability and function ofmyocyte enhancer factor 2A."; Cox D.M., Du M., Marback M., Yang E.C.C., Chan J., Siu K.W.M.,McDermott J.C.; J. Biol. Chem. 278:15297-15303(2003). Cited for: PHOSPHORYLATION AT SER-255; THR-312; THR-319 AND SER-408, MASSSPECTROMETRY, AND MUTAGENESIS OF SER-255. | |
"Big mitogen-activated kinase regulates multiple members of the MEF2protein family."; Kato Y., Zhao M., Morikawa A., Sugiyama T., Chakravortty D., Koide N.,Yoshida T., Tapping R.I., Yang Y., Yokochi T., Lee J.D.; J. Biol. Chem. 275:18534-18540(2000). Cited for: PHOSPHORYLATION AT THR-312; THR-319 AND SER-355, AND MUTAGENESIS OFTHR-312; THR-319 AND SER-355. | |
"Regulation of the MEF2 family of transcription factors by p38."; Zhao M., New L., Kravchenko V.V., Kato Y., Gram H., di Padova F.,Olson E.N., Ulevitch R.J., Han J.-D.; Mol. Cell. Biol. 19:21-30(1999). Cited for: PHOSPHORYLATION AT THR-312; THR-319 AND SER-453, FUNCTION,HETERODIMERIZATION, AND MUTAGENESIS OF THR-312; THR-319; SER-355;SER-453 AND SER-479. | |
"Nemo-like kinase-myocyte enhancer factor 2A signaling regulatesanterior formation in Xenopus development."; Satoh K., Ohnishi J., Sato A., Takeyama M., Iemura S., Natsume T.,Shibuya H.; Mol. Cell. Biol. 27:7623-7630(2007). Cited for: PHOSPHORYLATION AT THR-312 BY NLK. | |
"Targeting of p38 mitogen-activated protein kinases to MEF2transcription factors."; Yang S.-H., Galanis A., Sharrocks A.D.; Mol. Cell. Biol. 19:4028-4038(1999). Cited for: INTERACTION WITH MAPK14, PHOSPHORYLATION AT THR-312 AND THR-319, ANDMUTAGENESIS OF ARG-269; LYS-270; LEU-273; VAL-275; ILE-277 ANDPRO-278. | |
Sumoylation | |
Reference | PubMed |
"PDSM, a motif for phosphorylation-dependent SUMO modification."; Hietakangas V., Anckar J., Blomster H.A., Fujimoto M., Palvimo J.J.,Nakai A., Sistonen L.; Proc. Natl. Acad. Sci. U.S.A. 103:45-50(2006). Cited for: SUMOYLATION AT LYS-403, PHOSPHORYLATION AT SER-408, FUNCTION, ANDMUTAGENESIS OF LYS-403 AND SER-408. | |
"SUMO-1 modification of MEF2A regulates its transcriptionalactivity."; Riquelme C., Barthel K.K., Liu X.; J. Cell. Mol. Med. 10:132-144(2006). Cited for: SUMOYLATION AT LYS-403, INTERACTION WITH PIAS1, FUNCTION, SUBCELLULARLOCATION, AND MUTAGENESIS OF LYS-403. |