1. 寻找相关同源序列

1.1 InterPro

1.2 物种特异基因家族数据库

拟南芥:https://www.arabidopsis.org/

同源预测 - 图1

进入Gene Families(https://www.arabidopsis.org/browse/genefamily/index.jsp

同源预测 - 图2

找到要找的基因家族(WOX)

同源预测 - 图3

看到WOX基因的分类(https://www.arabidopsis.org/browse/genefamily/wox.jsp

  1. WUS At2g17950
  2. WOX1 At3g18010
  3. WOX2 At5g59340
  4. WOX3 At2g28610
  5. WOX4 At1g46480
  6. WOX5 At3g11260
  7. WOX6 At2g01500
  8. WOX7 At5g05770
  9. WOX8 At5g45980
  10. WOX9 At2g33880
  11. WOX10 At1g20710
  12. WOX11 At3g03660
  13. WOX12 At5g17810
  14. WOX13 At4g35550
  15. WOX14 At1g20700

2. 目标物种蛋白序列建库

  1. # blast/diamond
  2. makeblastdb -in AT_WOX.fa -dbtype prot

3. 比对

  1. blastp -query pep.fa -db AT_WOX.fa -evalue 1e-5 -outfmt '6 std qlen slen' -out WOX.blastout
  2. # blast结果基于identity 30% 过滤
  3. awk '{if($3 > 50)print $1}' WOX.blastout