Mouse homolog of KIAA0143 protein: hearing deficit induces specific changes of expression in auditory brainstem neurons.
Hearing deficit induced by mechanical cochlear damage, intense noise or ototoxic drugs produces a variety of structural and functional changes in the inner ear and the auditory brainstem. In the present study, we identified a novel gene that has activity dependent plasticity in the superior olivary complex by using suppression subtractive hybridization. We cloned a gene that encodes mouse homolog of KIAA0143 protein, one derived from a series of unidentified human genes. This gene termed mKIAA0143 shows differential expression of mRNA in the lateral superior olive between mice with hearing deficit and those with normal hearing ability. The mRNA thus obtained encodes a unique membrane-bound protein that consists of 819 amino acids. The gene locus was mapped using genomic DNA databases to the mouse chromosome 15D1. Green fluorescent protein-tagged mKIAA0143 was expressed in COS-1 cells. It was amply seen in the cellular plasma membrane.
Munemoto
Yumi
Y
Department of Anatomy and Brain Science, Kansai Medical University, Moriguchi, Osaka 570-8506, Japan.
Houtani
Takeshi
T
Kase
Masahiko
M
Sakuma
Satoru
S
Baba
Kazuyasu
K
Yamashita
Toshio
T
Sugimoto
Tetsuo
T
D000161:Acoustic Stimulation / Q000379:methods; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D015152:Blotting, Northern / Q000379:methods; D015153:Blotting, Western / Q000379:methods; D001933:Brain Stem / Q000166:cytology* / Q000378:metabolism / Q000503:physiopathology; D019556:COS Cells; D002522:Chlorocebus aethiops; D003001:Cloning, Molecular / Q000379:methods; D015834:Cochlear Diseases / Q000235:genetics / Q000503:physiopathology; D017626:Cochlear Nucleus / Q000378:metabolism; D004307:Dose-Response Relationship, Radiation; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology / Q000528:radiation effects; D005786:Gene Expression Regulation; D034381:Hearing Loss / Q000235:genetics*; D017403:In Situ Hybridization / Q000379:methods; D008297:Male; D008307:Malleus / Q000293:injuries / Q000502:physiology; D008565:Membrane Proteins / Q000235:genetics / Q000378:metabolism; D051379:Mice; D008969:Molecular Sequence Data; D009474:Neurons / Q000378:metabolism*; D012333:RNA, Messenger / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000379:methods; D012684:Sensory Thresholds / Q000502:physiology; D016415:Sequence Alignment / Q000379:methods; D013997:Time Factors; D014162:Transfection / Q000379:methods
C495185:KIAA0143 protein, mouse; D008565:Membrane Proteins; D012333:RNA, Messenger