KEGG   DISEASE: Distal hereditary motor neuropathies (dHMN)Help
Entry
H00856                      Disease                                

Name
Distal hereditary motor neuropathies (dHMN)
Description
Distal hereditary motor neuropathies (dHMN) comprise a heterogenous group of diseases that share the common feature of a length-dependent predominantly motor neuropathy. Many forms of dHMN have minor sensory abnormalities and/or a significant upper-motor-neuron component, and there is often an overlap with the axonal forms of Charcot-Marie-Tooth disease (CMT) [DS:H00264] and with juvenile forms of amyotrophic lateral sclerosis [DS:H00058] and hereditary spastic paraplegia [DS:H00266]. The causative genes with autosomal dominant, recessive, and X-linked patterns of inheritance have implicated proteins with diverse functions. Distal HMN are classified into phenotypic subtypes according to age at onset, mode of inheritance, and presence of additional features.
Category
Nervous system disease
Brite
Human diseases [BR:br08402]
 Nervous system diseases
  Other nervous and sensory system diseases
   H00856  Distal hereditary motor neuropathies (dHMN)
Human diseases in ICD-10 classification [BR:br08403]
 6. Diseases of the nervous system (G00-G99)
  G10-G14  Systemic atrophies primarily affecting the central nervous system
   G12  Spinal muscular atrophy and related syndromes
    H00856  Distal hereditary motor neuropathies (dHMN)
BRITE hierarchy
Gene
(HMN2A) HSPB8 [HSA:26353] [KO:K08879]
(HMN2B) HSPB1 [HSA:3315] [KO:K04455]
(HMN2C) HSPB3 [HSA:8988] [KO:K09544]
(HMN2D) FBXO38 [HSA:81545] [KO:K10313]
(HMN5A) GARS [HSA:2617] [KO:K01880]
(HMN5A) BSCL2 [HSA:26580] [KO:K19365]
(HMN5B) REEP1 [HSA:65055] [KO:K17338]
(HMN6/DSMA1) IGHMBP2 [HSA:3508] [KO:K19036]
(HMN7A) SLC5A7 [HSA:60482] [KO:K14387]
(HMN7B) DCTN1 [HSA:1639] [KO:K04648]
(HMN8) TRPV4 [HSA:59341] [KO:K04973]
(DSMA2) SIGMAR1 [HSA:10280] [KO:K20719]
(DSMA4) PLEKHG5 [HSA:57449] [KO:K19464]
(DSMA5) DNAJB2 [HSA:3300] [KO:K09508]
(DSMAX) ATP7A [HSA:538] [KO:K17686]
Comment
Autosomal dominant inheritance include distal HMN1 and 2, characterized by juvenile and adult onset, respectively; HMN5, characterized by upper limb involvement; HMN7, with vocal cord paralysis; and HMN8. HMN has also been referred to as distal spinal muscular atrophy (DSMA). DSMA here refers to the autosomal recessive forms of HMN.
See also H00455 Spinal muscular atrophy (SMA).
Other DBs
Reference
PMID:22028385 (description, gene)
  Authors
Rossor AM, Kalmar B, Greensmith L, Reilly MM
  Title
The distal hereditary motor neuropathies.
  Journal
J Neurol Neurosurg Psychiatry 83:6-14 (2012)
DOI:10.1136/jnnp-2011-300952
Reference
PMID:19917815 (description, gene)
  Authors
Reilly MM, Shy ME
  Title
Diagnosis and new treatments in genetic neuropathies.
  Journal
J Neurol Neurosurg Psychiatry 80:1304-14 (2009)
DOI:10.1136/jnnp.2008.158295
Reference
PMID:24207122 (gene)
  Authors
Sumner CJ, d'Ydewalle C, Wooley J, Fawcett KA, Hernandez D, Gardiner AR, Kalmar B, Baloh RH, Gonzalez M, Zuchner S, Stanescu HC, Kleta R, Mankodi A, Cornblath DR, Boylan KB, Reilly MM, Greensmith L, Singleton AB, Harms MB, Rossor AM, Houlden H
  Title
A dominant mutation in FBXO38 causes distal spinal muscular atrophy with calf predominance.
  Journal
Am J Hum Genet 93:976-83 (2013)
DOI:10.1016/j.ajhg.2013.10.006
Reference
PMID:22703882 (gene)
  Authors
Beetz C, Pieber TR, Hertel N, Schabhuttl M, Fischer C, Trajanoski S, Graf E, Keiner S, Kurth I, Wieland T, Varga RE, Timmerman V, Reilly MM, Strom TM, Auer-Grumbach M
  Title
Exome sequencing identifies a REEP1 mutation involved in distal hereditary motor neuropathy type V.
  Journal
Am J Hum Genet 91:139-45 (2012)
DOI:10.1016/j.ajhg.2012.05.007
Reference
PMID:23141292 (gene)
  Authors
Barwick KE, Wright J, Al-Turki S, McEntagart MM, Nair A, Chioza B, Al-Memar A, Modarres H, Reilly MM, Dick KJ, Ruggiero AM, Blakely RD, Hurles ME, Crosby AH
  Title
Defective presynaptic choline transport underlies hereditary motor neuropathy.
  Journal
Am J Hum Genet 91:1103-7 (2012)
DOI:10.1016/j.ajhg.2012.09.019
Reference
PMID:26078401 (gene)
  Authors
Li X, Hu Z, Liu L, Xie Y, Zhan Y, Zi X, Wang J, Wu L, Xia K, Tang B, Zhang R
  Title
A SIGMAR1 splice-site mutation causes distal hereditary motor neuropathy.
  Journal
Neurology 84:2430-7 (2015)
DOI:10.1212/WNL.0000000000001680
Reference
PMID:17564964 (gene)
  Authors
Maystadt I, Rezsohazy R, Barkats M, Duque S, Vannuffel P, Remacle S, Lambert B, Najimi M, Sokal E, Munnich A, Viollet L, Verellen-Dumoulin C
  Title
The nuclear factor kappaB-activator gene PLEKHG5 is mutated in a form of autosomal recessive lower motor neuron disease with childhood onset.
  Journal
Am J Hum Genet 81:67-76 (2007)
DOI:10.1086/518900
Reference
PMID:22522442 (gene)
  Authors
Blumen SC, Astord S, Robin V, Vignaud L, Toumi N, Cieslik A, Achiron A, Carasso RL, Gurevich M, Braverman I, Blumen N, Munich A, Barkats M, Viollet L
  Title
A rare recessive distal hereditary motor neuropathy with HSJ1 chaperone mutation.
  Journal
Ann Neurol 71:509-19 (2012)
DOI:10.1002/ana.22684
Reference
PMID:20170900 (gene)
  Authors
Kennerson ML, Nicholson GA, Kaler SG, Kowalski B, Mercer JF, Tang J, Llanos RM, Chu S, Takata RI, Speck-Martins CE, Baets J, Almeida-Souza L, Fischer D, Timmerman V, Taylor PE, Scherer SS, Ferguson TA, Bird TD, De Jonghe P, Feely SM, Shy ME, Garbern JY
  Title
Missense mutations in the copper transporter gene ATP7A cause X-linked distal hereditary motor neuropathy.
  Journal
Am J Hum Genet 86:343-52 (2010)
DOI:10.1016/j.ajhg.2010.01.027

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