MRCP UK EXAMINATIONS

NEUROLOGY

SPASTIC PARAPARESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which among these is a protein that belongs to a class of motor proteins which supports several cellular functions including mitosis, meiosis, anterograde axonal transport?
A
Dynein
B
Dystrophin
C
Kinesin
D
Tubulin
Explanation: 

Detailed explanation-1: -A kinesin is a protein belonging to a class of motor proteins found in eukaryotic cells.

Detailed explanation-2: -Kinesin superfamily proteins are important microtubule-based motor proteins with a kinesin motor domain that is conserved among all eukaryotic organisms. They are responsible for unidirectionally transporting various cargos, including membranous organelles, protein complexes, and mRNAs.

Detailed explanation-3: -Kinesin motor proteins There are two major classes of motor protein associated with movement along microtubules: the kinesins and dyneins. Both classes of microtubule motor protein display ATPase activity, with the energy required for moving proteins across the microtubule derived from the hydrolysis of ATP.

Detailed explanation-4: -Myosin motors move on actin filaments, whereas kinesin and dynein motors move on microtubules. These molecular motor proteins all convert the energy from ATP into force and movement on either the actin or microtubule tracks.

There is 1 question to complete.