 insolubl protein bovin crystallin len insolubl len protein albuminoid adult bovin len cortex render solubl rais ph wash suspens 0 9 nacl 10 5 reduc ph 7 4 sediment constant dissolv protein 10 8 molecular weight estim 360 000 12 000 amino acid composit solubl -crysta- llin fraction kinship appar immunochemi- cal properti suggest initi insolubl protein molecular aggreg -crystallin dissoci alkalin solut molecul exhibit sediment constant 10 8 