Anas platyrhynchos      CAMK/MLCK


※ MLCK family introduction

    MLCK (myosin light chain kinase) belongs to CAMK group and is Ca2+/calmodulin-dependent serine−threonine protein kinase which can phosphorylate the regulatory light chain of mysosin. Skeletal muscle MLCK contains an N-terminal sequence, a protein kinase catalytic core domain and a regulatory segment which consists of an autoinhibitory sequence and a calmodulin binding sequence. The expression size of MLCK in different animal species is related with diverse N-terminal sequence. The MLCKs are activated via binding with calmodulin which is a highly conserved Ca2+-binding protein (1). NMM (nonmuscle myosin) and SMM (smooth muscle myosin) are known substrates of MLCK in vivo. Phosphorylation of RLC on moysin can activate actin-activated myosin ATPase activity which is essential for muscle contraction. In addition, the phosphorylation functions of MLCKs in tracheal, bronchial and gastrointestinal smooth muscle cannot be replaced by others kinases (2).

Reference
1. Stull, J.T., Kamm, K.E. and Vandenboom, R. (2011) Myosin light chain kinase and the role of myosin light chain phosphorylation in skeletal muscle. Arch Biochem Biophys, 510, 120-128. PMID: 21284933
2. Hong, F., Haldeman, B.D., Jackson, D., Carter, M., Baker, J.E. and Cremo, C.R. (2011) Biochemistry of smooth muscle myosin light chain kinase. Arch Biochem Biophys, 510, 135-146. PMID: 21565153


There are 6 genes.  Reviewed (0 or Unreviewed (6

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Anp-0183
ENSAPLG00000007888.1
U3IJV2
2
iEKPD-Anp-0120
ENSAPLG00000005685.1
R0LM85
MYLK
3
iEKPD-Anp-0250
ENSAPLG00000010452.1
U3ISE6
MYLK2
4
iEKPD-Anp-0221
ENSAPLG00000009568.1
U3IPV4
MYLK3
5
iEKPD-Anp-0346
ENSAPLG00000013701.1
U3J1Y7
MYLK4
6
iEKPD-Anp-0342
ENSAPLG00000013370.1
U3J2U5
TTN