2xpg: Difference between revisions
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2xpg]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2XPG OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2XPG FirstGlance]. <br> | <table><tr><td colspan='2'>[[2xpg]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2XPG OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2XPG FirstGlance]. <br> | ||
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1uqs|1uqs]], [[1bd2|1bd2]], [[2esv|2esv]], [[2xks|2xks]], [[2ak4|2ak4]], [[1ypz|1ypz]], [[1im3|1im3]], [[1uxw|1uxw]], [[1i7u|1i7u]], [[1c16|1c16]], [[1hsa|1hsa]], [[2axf|2axf]], [[1gzp|1gzp]], [[2bnq|2bnq]], [[1w72|1w72]], [[2jcc|2jcc]], [[2bck|2bck]], [[1de4|1de4]], [[2vlk|2vlk]], [[1exu|1exu]], [[1qrn|1qrn]], [[2hla|2hla]], [[1mhe|1mhe]], [[1eez|1eez]], [[1im9|1im9]], [[1jht|1jht]], [[1qqd|1qqd]], [[1qr1|1qr1]], [[1zs8|1zs8]], [[1hla|1hla]], [[1jgd|1jgd]], [[1i1y|1i1y]], [[1vgk|1vgk]], [[1age|1age]], [[1ur7|1ur7]], [[2x89|2x89]], [[1s9x|1s9x]], [[1hhg|1hhg]], [[2x4u|2x4u]], [[1duz|1duz]], [[1a9e|1a9e]], [[2clr|2clr]], [[3hla|3hla]], [[1m05|1m05]], [[2x4o|2x4o]], [[1tvb|1tvb]], [[2v2w|2v2w]], [[1onq|1onq]], [[2x4p|2x4p]], [[2vlr|2vlr]], [[2bvo|2bvo]], [[1a1n|1a1n]], [[1lp9|1lp9]], [[1zsd|1zsd]], [[1m6o|1m6o]], [[1hhk|1hhk]], [[1zt4|1zt4]], [[1hsb|1hsb]], [[1ce6|1ce6]], [[2xku|2xku]], [[1x7q|1x7q]], [[1py4|1py4]], [[1syv|1syv]], [[2j8u|2j8u]], [[1sys|1sys]], [[1ogt|1ogt]], [[2x4t|2x4t]], [[1cg9|1cg9]], [[1p7q|1p7q]], [[1q94|1q94]], [[1jnj|1jnj]], [[1agb|1agb]], [[2d31|2d31]], [[1xz0|1xz0]], [[1lds|1lds]], [[1hhh|1hhh]], [[1tvh|1tvh]], [[1xr8|1xr8]], [[2bss|2bss]], [[1a1m|1a1m]], [[1e28|1e28]], [[2bvp|2bvp]], [[2v2x|2v2x]], [[1xr9|1xr9]], [[2gj6|2gj6]], [[2x4r|2x4r]], [[1qlf|1qlf]], [[1efx|1efx]], [[1tmc|1tmc]], [[2av1|2av1]], [[1qsf|1qsf]], [[1jge|1jge]], [[1kpr|1kpr]], [[1duy|1duy]], [[2hjl|2hjl]], [[1qew|1qew]], [[1w0v|1w0v]], [[1k5n|1k5n]], [[1ao7|1ao7]], [[2bnr|2bnr]], [[1xh3|1xh3]], [[2bst|2bst]], [[1mi5|1mi5]], [[2h26|2h26]], [[1s9y|1s9y]], [[1a1o|1a1o]], [[2a83|2a83]], [[1agf|1agf]], [[1oga|1oga]], [[2f8o|2f8o]], [[2x70|2x70]], [[2cii|2cii]], [[1i7r|1i7r]], [[1jf1|1jf1]], [[2c7u|2c7u]], [[2f74|2f74]], [[1e27|1e27]], [[1w0w|1w0w]], [[1gzq|1gzq]], [[1uxs|1uxs]], [[1akj|1akj]], [[2hjk|2hjk]], [[2vb5|2vb5]], [[1agd|1agd]], [[2x4n|2x4n]], [[1r3h|1r3h]], [[1eey|1eey]], [[1i7t|1i7t]], [[1ydp|1ydp]], [[1i4f|1i4f]], [[2vll|2vll]], [[2bsr|2bsr]], [[1b0g|1b0g]], [[2vlj|2vlj]], [[2x4s|2x4s]], [[1b0r|1b0r]], [[1of2|1of2]], [[1hhi|1hhi]], [[1qse|1qse]], [[1a9b|1a9b]], [[2axg|2axg]], [[2bvq|2bvq]], [[1agc|1agc]], [[1qvo|1qvo]], [[1hhj|1hhj]], [[1s9w|1s9w]], [[1ktl|1ktl]], [[1a6z|1a6z]], [[2cik|2cik]], [[1i1f|1i1f]], [[2uwe|2uwe]], [[2av7|2av7]]</td></tr> | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1uqs|1uqs]], [[1bd2|1bd2]], [[2esv|2esv]], [[2xks|2xks]], [[2ak4|2ak4]], [[1ypz|1ypz]], [[1im3|1im3]], [[1uxw|1uxw]], [[1i7u|1i7u]], [[1c16|1c16]], [[1hsa|1hsa]], [[2axf|2axf]], [[1gzp|1gzp]], [[2bnq|2bnq]], [[1w72|1w72]], [[2jcc|2jcc]], [[2bck|2bck]], [[1de4|1de4]], [[2vlk|2vlk]], [[1exu|1exu]], [[1qrn|1qrn]], [[2hla|2hla]], [[1mhe|1mhe]], [[1eez|1eez]], [[1im9|1im9]], [[1jht|1jht]], [[1qqd|1qqd]], [[1qr1|1qr1]], [[1zs8|1zs8]], [[1hla|1hla]], [[1jgd|1jgd]], [[1i1y|1i1y]], [[1vgk|1vgk]], [[1age|1age]], [[1ur7|1ur7]], [[2x89|2x89]], [[1s9x|1s9x]], [[1hhg|1hhg]], [[2x4u|2x4u]], [[1duz|1duz]], [[1a9e|1a9e]], [[2clr|2clr]], [[3hla|3hla]], [[1m05|1m05]], [[2x4o|2x4o]], [[1tvb|1tvb]], [[2v2w|2v2w]], [[1onq|1onq]], [[2x4p|2x4p]], [[2vlr|2vlr]], [[2bvo|2bvo]], [[1a1n|1a1n]], [[1lp9|1lp9]], [[1zsd|1zsd]], [[1m6o|1m6o]], [[1hhk|1hhk]], [[1zt4|1zt4]], [[1hsb|1hsb]], [[1ce6|1ce6]], [[2xku|2xku]], [[1x7q|1x7q]], [[1py4|1py4]], [[1syv|1syv]], [[2j8u|2j8u]], [[1sys|1sys]], [[1ogt|1ogt]], [[2x4t|2x4t]], [[1cg9|1cg9]], [[1p7q|1p7q]], [[1q94|1q94]], [[1jnj|1jnj]], [[1agb|1agb]], [[2d31|2d31]], [[1xz0|1xz0]], [[1lds|1lds]], [[1hhh|1hhh]], [[1tvh|1tvh]], [[1xr8|1xr8]], [[2bss|2bss]], [[1a1m|1a1m]], [[1e28|1e28]], [[2bvp|2bvp]], [[2v2x|2v2x]], [[1xr9|1xr9]], [[2gj6|2gj6]], [[2x4r|2x4r]], [[1qlf|1qlf]], [[1efx|1efx]], [[1tmc|1tmc]], [[2av1|2av1]], [[1qsf|1qsf]], [[1jge|1jge]], [[1kpr|1kpr]], [[1duy|1duy]], [[2hjl|2hjl]], [[1qew|1qew]], [[1w0v|1w0v]], [[1k5n|1k5n]], [[1ao7|1ao7]], [[2bnr|2bnr]], [[1xh3|1xh3]], [[2bst|2bst]], [[1mi5|1mi5]], [[2h26|2h26]], [[1s9y|1s9y]], [[1a1o|1a1o]], [[2a83|2a83]], [[1agf|1agf]], [[1oga|1oga]], [[2f8o|2f8o]], [[2x70|2x70]], [[2cii|2cii]], [[1i7r|1i7r]], [[1jf1|1jf1]], [[2c7u|2c7u]], [[2f74|2f74]], [[1e27|1e27]], [[1w0w|1w0w]], [[1gzq|1gzq]], [[1uxs|1uxs]], [[1akj|1akj]], [[2hjk|2hjk]], [[2vb5|2vb5]], [[1agd|1agd]], [[2x4n|2x4n]], [[1r3h|1r3h]], [[1eey|1eey]], [[1i7t|1i7t]], [[1ydp|1ydp]], [[1i4f|1i4f]], [[2vll|2vll]], [[2bsr|2bsr]], [[1b0g|1b0g]], [[2vlj|2vlj]], [[2x4s|2x4s]], [[1b0r|1b0r]], [[1of2|1of2]], [[1hhi|1hhi]], [[1qse|1qse]], [[1a9b|1a9b]], [[2axg|2axg]], [[2bvq|2bvq]], [[1agc|1agc]], [[1qvo|1qvo]], [[1hhj|1hhj]], [[1s9w|1s9w]], [[1ktl|1ktl]], [[1a6z|1a6z]], [[2cik|2cik]], [[1i1f|1i1f]], [[2uwe|2uwe]], [[2av7|2av7]]</div></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2xpg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2xpg OCA], [http://pdbe.org/2xpg PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2xpg RCSB], [http://www.ebi.ac.uk/pdbsum/2xpg PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2xpg ProSAT]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2xpg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2xpg OCA], [http://pdbe.org/2xpg PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2xpg RCSB], [http://www.ebi.ac.uk/pdbsum/2xpg PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2xpg ProSAT]</span></td></tr> | ||
</table> | </table> | ||
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==See Also== | ==See Also== | ||
*[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]] | *[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]] | ||
*[[MHC 3D structures | *[[MHC 3D structures|MHC 3D structures]] | ||
*[[Multiple sclerosis|Multiple sclerosis]] | *[[Multiple sclerosis|Multiple sclerosis]] | ||
== References == | == References == |
Revision as of 08:06, 19 November 2020
Crystal structure of a MHC class I-peptide complexCrystal structure of a MHC class I-peptide complex
Structural highlightsDisease[MYPR_HUMAN] Defects in PLP1 are the cause of leukodystrophy hypomyelinating type 1 (HLD1) [MIM:312080]; also known as Pelizaeus-Merzbacher disease. HLD1 is an X-linked recessive dysmyelinating disorder of the central nervous system in which myelin is not formed properly. It is characterized clinically by nystagmus, spastic quadriplegia, ataxia, and developmental delay.[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] Defects in PLP1 are the cause of spastic paraplegia X-linked type 2 (SPG2) [MIM:312920]. SPG2 is characterized by spastic gait and hyperreflexia. In some patients, complicating features include nystagmus, dysarthria, sensory disturbance, mental retardation, optic atrophy.[31] [32] [33] [34] [35] [36] [37] [38] [39] [B2MG_HUMAN] Defects in B2M are the cause of hypercatabolic hypoproteinemia (HYCATHYP) [MIM:241600]. Affected individuals show marked reduction in serum concentrations of immunoglobulin and albumin, probably due to rapid degradation.[40] Note=Beta-2-microglobulin may adopt the fibrillar configuration of amyloid in certain pathologic states. The capacity to assemble into amyloid fibrils is concentration dependent. Persistently high beta(2)-microglobulin serum levels lead to amyloidosis in patients on long-term hemodialysis.[41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] Function[1A03_HUMAN] Involved in the presentation of foreign antigens to the immune system. [MYPR_HUMAN] This is the major myelin protein from the central nervous system. It plays an important role in the formation or maintenance of the multilamellar structure of myelin. [B2MG_HUMAN] Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system. Publication Abstract from PubMedThe structure of the human major histocompatability (MHC) class I molecule HLA-A*0301 (HLA-A3) in complex with a nonameric peptide (KLIETYFSK) has been determined by X-ray crystallography to 2.7 A resolution. HLA-A3 is a predisposing allele for multiple sclerosis (MS), an autoimmune disease of the central nervous system. The KLIETYFSK peptide is a naturally processed epitope of proteolipid protein, a myelin protein and candidate target for immune-mediated myelin destruction in MS. Comparison of the structure of HLA-A3 with that of HLA-A2, an MHC class I molecule which is protective against MS, indicates that both MHC class I molecules present very similar faces for T-cell receptor recognition whilst differing in the specificity of their peptide-binding grooves. These characteristics may underlie the opposing (predisposing versus protective) associations that they exhibit both in humans and in mouse models of MS-like disease. Furthermore, subtle alterations within the peptide-binding groove of HLA-A3 and other A3-like MHC class I molecules, members of the so-called A3 superfamily, may be sufficient to alter their presentation of autoantigen peptides such as KLIETYFSK. This in turn may modulate their contribution to the associated risk of autoimmune disease. Structure of HLA-A*0301 in complex with a peptide of proteolipid protein: insights into the role of HLA-A alleles in susceptibility to multiple sclerosis.,McMahon RM, Friis L, Siebold C, Friese MA, Fugger L, Jones EY Acta Crystallogr D Biol Crystallogr. 2011 May;67(Pt 5):447-54. Epub 2011 Apr 13. PMID:21543847[54] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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