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L2275

Sigma-Aldrich

Myosin Light Chain Kinase Fragment 11-19 amide

≥97% (HPLC)

Synonym(s):

Lys-Lys-Arg-Ala-Ala-Arg-Ala-Thr-Ser amide

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About This Item

Empirical Formula (Hill Notation):
C40H78N18O11
CAS Number:
119386-39-9
Molecular Weight:
987.16
MDL number:
MFCD00076722
UNSPSC Code:
12352202
PubChem Substance ID:
24896310
NACRES:
NA.26

Assay

≥97% (HPLC)

storage temp.

−20°C

SMILES string

CC(O)C(NC(=O)C(C)NC(=O)C(CCCNC(N)=N)NC(=O)C(C)NC(=O)C(C)NC(=O)C(CCCNC(N)=N)NC(=O)C(CCCCN)NC(=O)C(N)CCCCN)C(=O)NC(CO)C(N)=O

InChI

1S/C40H78N18O11/c1-20(52-36(67)27(14-10-18-50-40(47)48)56-37(68)25(12-6-8-16-42)55-34(65)24(43)11-5-7-15-41)31(62)51-21(2)32(63)54-26(13-9-17-49-39(45)46)35(66)53-22(3)33(64)58-29(23(4)60)38(69)57-28(19-59)30(44)61/h20-29,59-60H,5-19,41-43H2,1-4H3,(H2,44,61)(H,51,62)(H,52,67)(H,53,66)(H,54,63)(H,55,65)(H,56,68)(H,57,69)(H,58,64)(H4,45,46,49)(H4,47,48,50)

InChI key

FDCBNCDCLDMQDU-UHFFFAOYSA-N

Amino Acid Sequence

Lys-Lys-Arg-Ala-Ala-Arg-Ala-Thr-Ser-NH2

Biochem/physiol Actions

Myosin Light Chain Kinase (MLCK) Fragment 11-19 amide (Lys-Lys-Arg-Ala-Ala-Arg-Ala-Thr-Ser-NH2) is used as an inhibitor of Myosin Light Chain Kinase phosphorylation.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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P J Kennelly et al.
The Journal of biological chemistry, 262(25), 11958-11963 (1987-09-05)
A synthetic peptide modeled after the calmodulin (CaM)-binding domain of rabbit skeletal muscle myosin light chain kinase, Lys-Arg-Arg-Trp-Lys5-Lys-Asn-Phe-Ile-Ala10-Val-Ser-Ala-Ala-+ ++Asn15-Arg-Phe-Glycyl amide (M5), inhibited the CaM-independent chymotryptic fragment of the enzyme, C35 (Edelman, A. M., Takio, K., Blumenthal, D. K., Hansen, R.
R B Pearson et al.
The Journal of biological chemistry, 261(1), 25-27 (1986-01-05)
The COOH-terminal residue in peptide analogs of the phosphorylation site sequence in smooth muscle myosin light chains, Lys11-Lys12-Arg13-Ala-Ala-Arg16-Ala-Thr-Ser19 -(P)Asn20-Val21-Phe22-Ala23, were shown to have a strong influence on the kinetics of peptide phosphorylation. The peptides 11-19, 11-20, 11-21, 11-22, and 11-23
J T Hunt et al.
The Biochemical journal, 257(1), 73-78 (1989-01-01)
Although the amino acid residues that are important for peptide substrates of myosin light-chain kinase have been reported, those that are important for peptide inhibitors of this enzyme have not previously been investigated. Synthetic peptides based on the sequence Lys11-Lys12-Arg13-Ala-Ala-Arg16-Ala-Thr-Ser19

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