4g84

From Proteopedia

(Difference between revisions)

Revision as of 16:56, 4 August 2016

Crystal structure of human HisRS

Structural highlights

4g84 is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	4g85
Gene:	HARS, HRS (HUMAN)
Activity:	Histidine--tRNA ligase, with EC number 6.1.1.21
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[SYHC_HUMAN] Defects in HARS are a cause of Usher syndrome type 3B (USH3B) [MIM:614504]. USH3B is a syndrome characterized by progressive vision and hearing loss during early childhood. Some patients have the so-called 'Charles Bonnet syndrome,' involving decreased visual acuity and vivid visual hallucinations. USH is a genetically heterogeneous condition characterized by the association of retinitis pigmentosa with sensorineural deafness. Age at onset and differences in auditory and vestibular function distinguish Usher syndrome type 1 (USH1), Usher syndrome type 2 (USH2) and Usher syndrome type 3 (USH3). USH3 is characterized by postlingual, progressive hearing loss, variable vestibular dysfunction, and onset of retinitis pigmentosa symptoms, including nyctalopia, constriction of the visual fields, and loss of central visual acuity, usually by the second decade of life.^[1] Note=HARS mutations may be involved in peripheral neuropathy, a disease mainly characterized by distal motor and sensory dysfunction. Inherited peripheral neuropathies are clinically and genetically heterogeneous with variable age of onset and reduced penetrance associated with specific loci. HARS mutations may directly predispose patients to peripheral neuropathy or may modify a peripheral neuropathy phenotype by contributing to the genetic and environmental load in a given patient (PubMed:22930593).

Publication Abstract from PubMed

Aminoacyl-tRNA synthetases (AARSs) catalyze aminoacylation of tRNAs in the cytoplasm. Surprisingly, AARSs also have critical extracellular and nuclear functions. Evolutionary pressure for new functions might be manifested by splice variants that skip only an internal catalytic domain (CD) and link noncatalytic N- and C-terminal polypeptides. Using disease-associated histidyl-tRNA synthetase (HisRS) as an example, we found an expressed 171-amino acid protein (HisRSDeltaCD) that deleted the entire CD, and joined an N-terminal WHEP to the C-terminal anticodon-binding domain (ABD). X-ray crystallography and three-dimensional NMR revealed the structures of human HisRS and HisRSDeltaCD. In contrast to homodimeric HisRS, HisRSDeltaCD is monomeric, where rupture of the ABD's packing with CD resulted in a dumbbell-like structure of flexibly linked WHEP and ABD domains. In addition, the ABD of HisRSDeltaCD presents a distinct local conformation. This natural internally deleted HisRS suggests evolutionary pressure to reshape AARS tertiary and quaternary structures for repurposing.

Internally Deleted Human tRNA Synthetase Suggests Evolutionary Pressure for Repurposing.,Xu Z, Wei Z, Zhou JJ, Ye F, Lo WS, Wang F, Lau CF, Wu J, Nangle LA, Chiang KP, Yang XL, Zhang M, Schimmel P Structure. 2012 Sep 5;20(9):1470-7. PMID:22958643^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Puffenberger EG, Jinks RN, Sougnez C, Cibulskis K, Willert RA, Achilly NP, Cassidy RP, Fiorentini CJ, Heiken KF, Lawrence JJ, Mahoney MH, Miller CJ, Nair DT, Politi KA, Worcester KN, Setton RA, Dipiazza R, Sherman EA, Eastman JT, Francklyn C, Robey-Bond S, Rider NL, Gabriel S, Morton DH, Strauss KA. Genetic mapping and exome sequencing identify variants associated with five novel diseases. PLoS One. 2012;7(1):e28936. doi: 10.1371/journal.pone.0028936. Epub 2012 Jan 17. PMID:22279524 doi:10.1371/journal.pone.0028936
↑ Xu Z, Wei Z, Zhou JJ, Ye F, Lo WS, Wang F, Lau CF, Wu J, Nangle LA, Chiang KP, Yang XL, Zhang M, Schimmel P. Internally Deleted Human tRNA Synthetase Suggests Evolutionary Pressure for Repurposing. Structure. 2012 Sep 5;20(9):1470-7. PMID:22958643 doi:http://dx.doi.org/10.1016/j.str.2012.08.001

1 Structural highlights
2 Disease
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4g84"

@@ Line 1: / Line 1: @@
 ==Crystal structure of human HisRS==
 <StructureSection load='4g84' size='340' side='right' caption='[[4g84]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4g84]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4G84 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4G84 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4g84]] is a 2 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=4G84 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4G84 FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=IMD:IMIDAZOLE'>IMD</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4g85|4g85]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HARS, HRS ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HARS, HRS ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Histidine--tRNA_ligase Histidine--tRNA ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.1.1.21 6.1.1.21] </span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4g84 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4g84 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4g84 RCSB], [http://www.ebi.ac.uk/pdbsum/4g84 PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4g84 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4g84 OCA], [http://pdbe.org/4g84 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4g84 RCSB], [http://www.ebi.ac.uk/pdbsum/4g84 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4g84 ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 19: / Line 20: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4g84" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>
@@ Line 24: / Line 26: @@
 </StructureSection>
 [[Category: Histidine--tRNA ligase]]
-[[Category: Homo sapiens]]
+[[Category: Human]]
 [[Category: Schimmel, P]]
 [[Category: Wei, Z]]

4g84

From Proteopedia

Revision as of 16:56, 4 August 2016

Crystal structure of human HisRS

Structural highlights

Disease

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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