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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: Polym Chem. 2014 Jan;5(5):1614–1625. doi: 10.1039/C3PY00537B

Table 1. Libraries of ELP diblock copolymers characterized.

ELP diblock libraries [Xaa:Yaa] ELP Nomenclature *Amino acid sequence **Calculated ELP MW (Da) ***Observed ELP MW (Da)
Ile:Ser I18S18 G(VPGIG)18(VPGSG)18Y 15,015 14,599
I24S24 G(VPGIG)24(VPGSG)24Y 20,012 19,820
I36S36 G(VPGIG)36(VPGSG)36Y 29,572 29,826
I48S48 G(VPGIG)48(VPGSG)48Y 39,643 39,749
I96S96 G(VPGIG)96(VPGSG)96Y 79,049 79,216
Ser:Ile S48I48 G(VPGSG)48(VPGIG)48Y 39,643 39,670
Ile:Ala I48A48 G(VPGIG)48(VPGAG)48Y 38,946 38,940
I96A96 G(VPGIG)96(VPGAG)96Y 77,655 77,233
Ala:Ile A48I48 G(VPGAG)48(VPGIG)48Y 38,946 38,952
A96I96 G(VPGAG)96(VPGIG)96Y 77,655 77,840
*

Gene sequence confirmed by N and C terminal DNA sequencing and diagnostic digestion.

**

Estimated from open reading frame excluding methionine start codon

***

Results from matrix assisted laser desorption ion time of flight mass spectrometry