STD1

• Symbol: STD1
• MSU: LOC_Os02g56540
• RAPdb: Os02g0810200

• Reduction of ATPase activity in the rice kinesin protein Stemless Dwarf1 inhibits cell division and organ development., 2018, Plant J.

Genbank accession number

• Therefore, these results indicate that the MT-dependent ATPase activity is indispensible for STD1 in regulating normal cell division and organ development
• In the std1 mutant, the substitution of Val-40-Glu in the motor domain of STD1 significantly reduced its MT-dependent ATPase activity
• Map-based cloning revealed that STD1 encodes a phragmoplast-associated kinesin-related protein, a homolog of the Arabidopsis thaliana PAKRP2, and is mainly expressed in the actively dividing tissues

• MAP65-5, STD1, Rice kinesin-related protein STD1 and microtubule-associated protein MAP65-5 cooperatively control microtubule bundling., Rice kinesin-related protein STD1 and microtubule-associated protein MAP65-5 cooperatively control microtubule bundling.
• MAP65-5, STD1, Rice kinesin-related protein STD1 and microtubule-associated protein MAP65-5 cooperatively control microtubule bundling., STD1 specifically interacts with MAP65-5 in rice and they cooperatively control microtubule bundles in phragmoplast expansion during cell division
• MAP65-5, STD1, Rice kinesin-related protein STD1 and microtubule-associated protein MAP65-5 cooperatively control microtubule bundling., Here, we found that STD1 interacted directly with MAP65-5, a member of the microtubule-associated proteins (MAPs)
• MAP65-5, STD1, Rice kinesin-related protein STD1 and microtubule-associated protein MAP65-5 cooperatively control microtubule bundling., Both STD1 and MAP65-5 could form homodimers and bundle microtubules individually
• MAP65-5, STD1, Rice kinesin-related protein STD1 and microtubule-associated protein MAP65-5 cooperatively control microtubule bundling., Compared with MAP65-5, the microtubules bundled by STD1 were disassembled completely into single microtubules after adding ATP
• MAP65-5, STD1, Rice kinesin-related protein STD1 and microtubule-associated protein MAP65-5 cooperatively control microtubule bundling., Conversely, the interaction of STD1 with MAP65-5 enhanced the microtubule bundling
• MAP65-5, STD1, Rice kinesin-related protein STD1 and microtubule-associated protein MAP65-5 cooperatively control microtubule bundling., These results suggest STD1 and MAP65-5 might cooperatively regulate microtubule organization in the phragmoplast at telophase