[1]
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PROTEIN SEQUENCE (ISOFORM 5).
PubMed=4108501 [NCBI, ExPASy, EBI, Israel, Japan]
Carnegie P.R.;
"Amino acid sequence of the encephalitogenic basic protein from human myelin.";
Biochem. J. 123:57-67(1971).
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[2]
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NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 6).
TISSUE=Embryonic spinal cord;
PubMed=2427738 [NCBI, ExPASy, EBI, Israel, Japan]
Roth H.J.,
Kronquist K.E.,
Pretorius P.J.,
Crandall B.F.,
Campagnoni A.T.;
"Isolation and characterization of a cDNA coding for a novel human 17.3K myelin basic protein (MBP) variant.";
J. Neurosci. Res. 16:227-238(1986).
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[3]
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NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 3 AND 5).
PubMed=2425357 [NCBI, ExPASy, EBI, Israel, Japan]
Kamholz J.,
de Ferra F.,
Puckett C.,
Lazzarini R.A.;
"Identification of three forms of human myelin basic protein by cDNA cloning.";
Proc. Natl. Acad. Sci. U.S.A. 83:4962-4966(1986).
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[4]
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NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 3; 4; 5 AND 6).
TISSUE=Embryonic spinal cord;
PubMed=2442403 [NCBI, ExPASy, EBI, Israel, Japan]
Roth H.J.,
Kronquist K.E.,
de Rosbo N.,
Crandall B.F.,
Campagnoni A.T.;
"Evidence for the expression of four myelin basic protein variants in the developing human spinal cord through cDNA cloning.";
J. Neurosci. Res. 17:321-328(1987).
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[5]
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NUCLEOTIDE SEQUENCE [GENOMIC DNA] (ISOFORMS 3; 4; 5 AND 6).
PubMed=2472816 [NCBI, ExPASy, EBI, Israel, Japan]
Streicher R.,
Stoffel W.;
"The organization of the human myelin basic protein gene. Comparison with the mouse gene.";
Biol. Chem. Hoppe-Seyler 370:503-510(1989).
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[6]
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NUCLEOTIDE SEQUENCE [GENOMIC DNA] (ISOFORMS 1 AND 2), AND TISSUE SPECIFICITY.
TISSUE=Brain;
PubMed=7504278 [NCBI, ExPASy, EBI, Israel, Japan]
Pribyl T.M.,
Campagnoni C.W.,
Kampf K.,
Kashima T.,
Handley V.W.,
McMahon J.,
Campagnoni A.T.;
"The human myelin basic protein gene is included within a 179-kilobase transcription unit: expression in the immune and central nervous systems.";
Proc. Natl. Acad. Sci. U.S.A. 90:10695-10699(1993).
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[7]
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NUCLEOTIDE SEQUENCE [GENOMIC DNA] (ISOFORM 3), FUNCTION, DIMERIZATION, AND MUTAGENESIS.
DOI=10.1016/0161-5890(95)00066-6; PubMed=8544862 [NCBI, ExPASy, EBI, Israel, Japan]
Nye S.H.,
Pelfrey C.M.,
Burkwit J.J.,
Voskuhl R.R.,
Lenardo M.J.,
Mueller J.P.;
"Purification of immunologically active recombinant 21.5 kDa isoform of human myelin basic protein.";
Mol. Immunol. 32:1131-1141(1995).
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[8]
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NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 6).
Ebert L.,
Schick M.,
Neubert P.,
Schatten R.,
Henze S.,
Korn B.;
"Cloning of human full open reading frames in Gateway(TM) system entry vector (pDONR201).";
Submitted (JUN-2004) to the EMBL/GenBank/DDBJ databases.
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[9]
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NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 7).
TISSUE=Amygdala;
The German cDNA consortium;
Submitted (AUG-2004) to the EMBL/GenBank/DDBJ databases.
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[10]
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NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2).
TISSUE=Brain;
Totoki Y.,
Toyoda A.,
Takeda T.,
Sakaki Y.,
Tanaka A.,
Yokoyama S.,
Ohara O.,
Nagase T.,
Kikuno F.R.;
Submitted (MAR-2005) to the EMBL/GenBank/DDBJ databases.
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[11]
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NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
DOI=10.1038/nature03983; PubMed=16177791 [NCBI, ExPASy, EBI, Israel, Japan]
Nusbaum C.,
Zody M.C.,
Borowsky M.L.,
Kamal M.,
Kodira C.D.,
Taylor T.D.,
Whittaker C.A.,
Chang J.L.,
Cuomo C.A.,
Dewar K.,
FitzGerald M.G.,
Yang X.,
Abouelleil A.,
Allen N.R.,
Anderson S.,
Bloom T.,
Bugalter B.,
Butler J.,
Cook A.,
DeCaprio D.,
Engels R.,
Garber M.,
Gnirke A.,
Hafez N.,
Hall J.L.,
Norman C.H.,
Itoh T.,
Jaffe D.B.,
Kuroki Y.,
Lehoczky J.,
Lui A.,
Macdonald P.,
Mauceli E.,
Mikkelsen T.S.,
Naylor J.W.,
Nicol R.,
Nguyen C.,
Noguchi H.,
O'Leary S.B.,
Piqani B.,
Smith C.L.,
Talamas J.A.,
Topham K.,
Totoki Y.,
Toyoda A.,
Wain H.M.,
Young S.K.,
Zeng Q.,
Zimmer A.R.,
Fujiyama A.,
Hattori M.,
Birren B.W.,
Sakaki Y.,
Lander E.S.;
"DNA sequence and analysis of human chromosome 18.";
Nature 437:551-555(2005).
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[12]
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NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 2 AND 5).
TISSUE=Brain, Lung, and Skin;
DOI=10.1101/gr.2596504; PubMed=15489334 [NCBI, ExPASy, EBI, Israel, Japan] The MGC Project Team;
"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).";
Genome Res. 14:2121-2127(2004).
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[13]
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NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 135-192.
DOI=10.1016/0888-7543(90)90443-X; PubMed=1689270 [NCBI, ExPASy, EBI, Israel, Japan]
Boylan K.B.,
Ayres T.M.,
Popko B.,
Takahashi N.,
Hood L.E.,
Prusiner S.B.;
"Repetitive DNA (TGGA)n 5' to the human myelin basic protein gene: a new form of oligonucleotide repetitive sequence showing length polymorphism.";
Genomics 6:16-22(1990).
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[14]
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PROTEIN SEQUENCE OF 135-178 AND 224-304 (ISOFORM 3), AND MASS SPECTROMETRY.
PubMed=2426402 [NCBI, ExPASy, EBI, Israel, Japan]
Scoble H.A.,
Whitaker J.N.,
Biemann K.;
"Analysis of the primary sequence of human myelin basic protein peptides 1-44 and 90-170 by fast atom bombardment mass spectrometry.";
J. Neurochem. 47:614-616(1986).
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[15]
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PROTEIN SEQUENCE OF 148-304 (ISOFORM 5), AND CITRULLINATION OF C8.
TISSUE=Brain;
PubMed=2466844 [NCBI, ExPASy, EBI, Israel, Japan]
Wood D.D.,
Moscarello M.A.;
"The isolation, characterization, and lipid-aggregating properties of a citrulline containing myelin basic protein.";
J. Biol. Chem. 264:5121-5127(1989).
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[16]
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PROTEIN SEQUENCE OF 156-172 AND 302-304, AND CHARACTERIZATION OF C8.
TISSUE=Brain;
DOI=10.1006/abbi.1995.1449; PubMed=7574672 [NCBI, ExPASy, EBI, Israel, Japan]
Boulias C.,
Pang H.,
Mastronardi F.,
Moscarello M.A.;
"The isolation and characterization of four myelin basic proteins from the unbound fraction during CM52 chromatography.";
Arch. Biochem. Biophys. 322:174-182(1995).
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[17]
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PROTEIN SEQUENCE OF 179-223 (ISOFORM 5), AND MASS SPECTROMETRY.
PubMed=6201481 [NCBI, ExPASy, EBI, Israel, Japan]
Gibson B.W.,
Gilliom R.D.,
Whitaker J.N.,
Biemann K.;
"Amino acid sequence of human myelin basic protein peptide 45-89 as determined by mass spectrometry.";
J. Biol. Chem. 259:5028-5031(1984).
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[18]
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PROTEIN SEQUENCE OF 179-222 (ISOFORM 5), AND SEQUENCE REVISION.
Shapira R.,
McKneally S.S.,
Chou F.,
Kibler R.F.;
"Encephalitogenic fragment of myelin basic protein. Amino acid sequence of bovine, rabbit, guinea pig, monkey, and human fragments.";
J. Biol. Chem. 246:4630-4640(1971).
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[19]
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PROTEIN SEQUENCE OF 246-269 (ISOFORM 3), AND ENCEPHALITOGENIC PEPTIDE.
PubMed=4099924 [NCBI, ExPASy, EBI, Israel, Japan]
Lennon V.A.,
Wilks A.V.,
Carnegie P.R.;
"Immunologic properties of the main encephalitogenic peptide from the basic protein of human myelin.";
J. Immunol. 105:1223-1230(1970).
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[20]
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PARTIAL PROTEIN SEQUENCE.
TISSUE=Brain;
DOI=10.1006/bbrc.1993.1540; PubMed=7685161 [NCBI, ExPASy, EBI, Israel, Japan]
Proost P.,
Van Damme J.,
Opdenakker G.;
"Leukocyte gelatinase B cleavage releases encephalitogens from human myelin basic protein.";
Biochem. Biophys. Res. Commun. 192:1175-1181(1993).
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[21]
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METHYLATION AT ARG-241.
PubMed=5128665 [NCBI, ExPASy, EBI, Israel, Japan]
Baldwin G.S.,
Carnegie P.R.;
"Isolation and partial characterization of methylated arginines from the encephalitogenic basic protein of myelin.";
Biochem. J. 123:69-74(1971).
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[22]
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PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-96, AND MASS SPECTROMETRY.
TISSUE=Epithelium;
DOI=10.1016/j.cell.2006.09.026; PubMed=17081983 [NCBI, ExPASy, EBI, Israel, Japan]
Olsen J.V.,
Blagoev B.,
Gnad F.,
Macek B.,
Kumar C.,
Mortensen P.,
Mann M.;
"Global, in vivo, and site-specific phosphorylation dynamics in signaling networks.";
Cell 127:635-648(2006).
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[23]
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STRUCTURE BY NMR OF 135-148, AND ACETYLATION.
PubMed=7544282 [NCBI, ExPASy, EBI, Israel, Japan]
Mendz G.L.,
Barden J.A.,
Martenson R.E.;
"Conformation of a tetradecapeptide epitope of myelin basic protein.";
Eur. J. Biochem. 231:659-666(1995).
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[24]
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3D-STRUCTURE MODELING OF 135-279 (ISOFORM 5).
DOI=10.1074/jbc.272.7.4269; PubMed=9020143 [NCBI, ExPASy, EBI, Israel, Japan]
Ridsdale R.A.,
Beniac D.R.,
Tompkins T.A.,
Moscarello M.A.,
Harauz G.;
"Three-dimensional structure of myelin basic protein. II. Molecular modeling and considerations of predicted structures in multiple sclerosis.";
J. Biol. Chem. 272:4269-4275(1997).
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[25]
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X-RAY CRYSTALLOGRAPHY (1.9 ANGSTROMS) OF 218-237 IN COMPLEX WITH HLA-DRA; HLA-DRB1 AND TCRB.
DOI=10.1006/jmbi.2000.4198; PubMed=11080454 [NCBI, ExPASy, EBI, Israel, Japan]
Li Y.,
Li H.,
Martin R.,
Mariuzza R.A.;
"Structural basis for the binding of an immunodominant peptide from myelin basic protein in different registers by two HLA-DR2 proteins.";
J. Mol. Biol. 304:177-188(2000).
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[26]
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X-RAY CRYSTALLOGRAPHY (2.8 ANGSTROMS) OF 45-57 IN COMPLEX WITH HLA-DRA AND HLA-DRB1.
DOI=10.1038/sj.emboj.7600771; PubMed=16079912 [NCBI, ExPASy, EBI, Israel, Japan]
Li Y.,
Huang Y.,
Lue J.,
Quandt J.A.,
Martin R.,
Mariuzza R.A.;
"Structure of a human autoimmune TCR bound to a myelin basic protein self-peptide and a multiple sclerosis-associated MHC class II molecule.";
EMBO J. 24:2968-2979(2005).
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- FUNCTION: The classic group of MBP isoforms (isoform 4-isoform 14) are with PLP the most abundant protein components of the myelin membrane in the CNS. They have a role in both its formation and stabilization. The smaller isoforms might have an important role in remyelination of denuded axons in multiple sclerosis. The non-classic group of MBP isoforms (isoform 1-isoform 3/Golli-MBPs) may preferentially have a role in the early developing brain long before myelination, maybe as components of transcriptional complexes, and may also be involved in signaling pathways in T-cells and neural cells. Differential splicing events combined with optional post-translational modifications give a wide spectrum of isomers, with each of them potentially having a specialized function. Induces T-cell proliferation.
- SUBUNIT: Homodimer; isoform 3 exists as a homodimer.
- SUBCELLULAR LOCATION: Myelin membrane; Peripheral membrane protein; Cytoplasmic side. Note=Cytoplasmic side of myelin.
- ALTERNATIVE PRODUCTS:
7 named isoforms [FASTA] produced by alternative splicing. Additional isoforms seem to exist.
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| Name | 2 |
| Synonyms | Golli-MBP2, HOG5 |
| Isoform ID | P02686-2 |
| Features which should be applied to build the isoform sequence: VSP_003311. |
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| Name | 3 |
| Synonyms | MBP1, 21.5 kDa |
| Isoform ID | P02686-3 |
| Note: Met-1 is removed. Contains N-acetylalanine at position 2. Mutagenesis of Cys-81 to Ser prevents dimerization. |
| Features which should be applied to build the isoform sequence: VSP_003308, VSP_003309. |
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| Name | 4 |
| Synonyms | MBP2, 20.2 kDa |
| Isoform ID | P02686-4 |
| Note: Met-1 is removed. Contains N-acetylalanine at position 2. |
| Features which should be applied to build the isoform sequence: VSP_003308, VSP_003309, VSP_003310. |
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| Name | 5 |
| Synonyms | MBP3, 18.5 kDa |
| Isoform ID | P02686-5 |
| Note: Met-1 is removed. Contains N-acetylalanine at position 2. |
| Features which should be applied to build the isoform sequence: VSP_003308. |
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| Name | 6 |
| Synonyms | MBP4, 17.2 kDa |
| Isoform ID | P02686-6 |
| Note: Met-1 is removed. Contains N-acetylalanine at position 2. |
| Features which should be applied to build the isoform sequence: VSP_003308, VSP_003310. |
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- TISSUE SPECIFICITY: MBP isoforms are found in both the central and the peripheral nervous system, whereas Golli-MBP isoforms are expressed in fetal thymus, spleen and spinal cord, as well as in cell lines derived from the immune system.
- DEVELOPMENTAL STAGE: Expression begins abruptly in 14-16 week old fetuses. Even smaller isoforms seem to be produced during embryogenesis; some of these persisting in the adult. Expression of isoform MBP2 is more evident at 16 weeks and its relative proportion declines thereafter.
- PTM: Several charge isomers of MBP; C1 (the most cationic, least modified, and most abundant form), C2, C3, C4, C5, C6, C7, C8-A and C8-B (the least cationic form); are produced as a result of optional PTM, such as phosphorylation, deamidation of glutamine or asparagine, arginine citrullination and methylation. C8-A and C8-B contain each two mass isoforms termed C8-A(H), C8-A(L), C8-B(H) and C8-B(L), (H) standing for higher and (L) for lower molecular weight. C3, C4 and C5 are phosphorylated. The ratio of methylated arginine residues decreases during aging, making the protein more cationic.
- PTM: The N-terminal alanine is acetylated (isoform 3, isoform 4, isoform 5 and isoform 6).
- PTM: Arg-241 was found to be 6% monomethylated and 60% symmetrically dimethylated.
- DISEASE: The reduction in the surface charge of citrullinated and/or methylated MBP could result in a weakened attachment to the myelin membrane. This mechanism could be operative in demyelinating diseases such as chronical multiple sclerosis (MS), and fulminating MS (Marburg disease).
- SIMILARITY: Belongs to the myelin basic protein family.
- SEQUENCE CAUTION:
- Sequence=AAC41944.1; Type=Miscellaneous discrepancy; Note=Contaminating sequence. The C-terminus contains a Histidine tag
- WEB RESOURCE: Name=Wikipedia; Note=Myelin basic protein entry; URL="http://en.wikipedia.org/wiki/Myelin_basic_protein";.
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