UniProtSummary | FUNCTION:SwissProt:P12036#Neurofilamentsusuallycontainthreeintermediatefilamentproteins:L,M,andHwhichareinvolvedinthemaintenanceofneuronalcaliber.NF-HhasanimportantfunctioninmatureaxonsthatisnotsubservedbythetwosmallerNFproteins. SIZE:1026aminoacids;112480Da PTM:ThereareanumberofrepeatsofthetripeptideK-S-P,NFHisphosphorylatedonanumberoftheserinesinthismotif.ItisthoughtthatphosphorylationofNFHresultsintheformationofinterfilamentcrossbridgesthatareimportantinthemaintenanceofaxonalcaliber.&Phosphorylationseemstoplayamajorroleinthefunctioningofthelargerneurofilamentpolypeptides(NF-MandNF-H),thelevelsofphosphorylationbeingaltereddevelopmentallyandcoincidentwithachangeintheneurofilamentfunction. DISEASE:SwissProt:P12036#DefectsinNEFHareacauseofsusceptibilitytoamyotrophiclateralsclerosis(ALS)[MIM:105400].ALSisaneurodegenerativedisorderaffectingupperandlowermotorneurons,andresultinginfatalparalysis.Sensoryabnormalitiesareabsent.Deathusuallyoccurswithin2to5years.Theetiologyislikelytobemultifactorial,involvingbothgeneticandenvironmentalfactors. SIMILARITY:SwissProt:P12036##Belongstotheintermediatefilamentfamily. |