Expression of kinesin heavy chain isoforms in retinal pigment epithelial cells.
Expression of kinesin heavy chain isoforms in retinal pigment epithelial cells.
复制标题
视网膜色素上皮细胞中驱动蛋白重链亚型的表达。
DOI:
10.1002/cm.970310108
复制
发表时间:
1995
影响因子:
--
通讯作者:
Burnside,B
中科院分区:
文献类型:
--
作者:
King-Smith,C;Bost-Usinger,L;Burnside,B
To examine the possible role of kinesin in pigment granule migration in the retinal pigment epithelium (RPE) of teleosts, we investigated the expression and distribution of kinesin heavy chain (KHC) in RPE. Blots of fish RPE lysates probed with two well‐characterized antibodies to KHC (H2 and HD) displayed a prominent band at 120 kD. A third KHC antibody (SUK4) recognized a band at 118 suggesting the presence of two KHC isoforms in teleost RPE. Reverse transcriptase‐polymerase chain reaction (RT‐PCR) of mRNA from RPE using primers homologous to conserved regions of the KHC motor domain resulted in the homologous to conserved regions of the KHC motor domain resulted in the identification of two putative KHC genes (FKIF1 and FKIF5) based on partial amino acid sequences. Previous studies had demonstrated a requirement for microtubules in pigment granule aggregation in RPE. In addition, the reported microtubule polarity orientation in RPE apical projections is consistent with a role for kinesin in pigment granule aggregation. Immunofluorescent localization of KHC in isolated RPE cells using H2 revealed a mottled distribution over the entire cell body, with no detectable selective association with pigment granules, even in cells fixed while aggregating pigment granules. Microinjected KHC antibodies had no effect on pigment granule aggregation or dispersion, although each of the three antibodies has been shown to block kinesin function in other systems. Thus we found no evidence for KHC function in RPE pigment granule aggregation. However, the two KHC isoforms may participate in other microtubule‐dependent processes in RPE.
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影响因子:
6.6
作者:
Schmitz,F;Wallis,KT;Rho,M;Drenckhahn,D;Murphy,DB
通讯作者:
Murphy,DB
DOI:
10.1083/jcb.107.6.2657
发表时间:
1988-12
期刊:
The Journal of cell biology
影响因子:
--
作者:
Ingold AL;Cohn SA;Scholey JM
通讯作者:
Scholey JM
DOI:
--
发表时间:
1990
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Kosik,KS;Orecchio,LD;Schnapp,B;Inouye,H;Neve,RL
通讯作者:
Neve,RL
影响因子:
4
作者:
D. Cole;W. Cande;R. Baskin;D. Skoufias;AN CHRISTOPHERJ.HOG;J. Scholey
通讯作者:
D. Cole;W. Cande;R. Baskin;D. Skoufias;AN CHRISTOPHERJ.HOG;J. Scholey
影响因子:
4.4
作者:
Garcia,DM;Burnside,B
通讯作者:
Burnside,B