Bioinformatics analysis of EST segment from goat

All the Expressed Sequence Tags(EST),which are from goat embodied in GeneBank update to Sep.2006,were analyzed in this study.The results showed that 51 out of 392 ESTs from Cashmere goat skin with anagen hair follicle are genes coding for keratin or keratin associated protein.However there are not any ESTs of this kind from goat mammary gland,but some genes coding for immunoglobulin、choline transporter-like protein、 MHC and so on,among which immunity and enzyme related genes take the most.The most remarkable analogical genes according to the ESTs from two different tissues code for ribosome proteins.The proportion from skin with anagen hair follicle is 15.1% and mammary gland 21.6%.It should be pointed out that 17 out of 26 contigs whose ESTs are from both skin and mammary gland code for ribosome proteins,as high up to 65.4%.