The
Putative Secondary Structure of putative protein M |
| |
| 1.氨基酸组成:(%) |
| %A: 8.6
| %C: 1.4
| %D: 2.7
| %E: 3.2
| %F: 5.0 |
%M: 3.2
| %N: 5.9
| %P: 2.3
| %Q: 2.3
| %R: 6.8 |
| %G: 6.8
| %H: 1.4
| %I: 8.1
| %K: 2.7
| %L: 14.0 |
%S: 5.4
| %T: 5.9
| %V: 7.2
| %W: 3.2
| %Y: 4.1
|
|
| |
| 2.Helix,Sheet等的预测结果: |
| 方法:向The
PredictProtein server提交多肽序列.预测实现方法参见Rost
B(1996) |
| 结果:结果包括两个部分,Fig1为图象化以后的结果图,直接的预测结果请参看这里 |
| |
Fig1.Helix,Strand预测结果 |
| |
| 3.Motif预测: |
| 方法:在prosit中通过序列比对,找到蛋白中可能含有的序列的motif. |
| 结果:下表中列出了改序列中可能含有的motif.其中,数字表示motif的第一个氨基酸在整个序列中的位置,后面的字母表示氨基酸序列. |
| |
N-glycosylation site |
Protein kinase C phosphorylation
site
|
N-myristoylation site
|
Prokaryotic membrane lipoprotein lipid
attachment site |
Casein kinase II phosphorylation
site
|
4 NGTI
|
39 SNR
98 SFR
171 TSR
183 SQR
|
78 GIAIAM
125 GTIVTR
187 GTDSGF
211 GSNDNI
|
53 LWLLWPVTLAC
75 VTGGIAIAMAC
|
94 GIQYGR
101 GITLGV
127 GNKGAG |
|
| |
| 4.穿膜片断预测结果 |
| 这是用The
PredictProtein Server预测二阶结构的结果之一,下表列出了可能的穿膜片断以及整个肽链在膜内和膜外的分布情况.由于以下是序列扫描以后的结果,所有有些非膜蛋白也有可能被预测为有穿膜序列. |
| Positions
| Segments
| Explain |
| 1- 22
| o1
| outside region 1 |
| 23- 40
| M1
| membrane helix 1 |
| 41- 44
| i1
| inside region 1 |
| 45- 68
| M2
| membrane helix 2 |
| 69- 72
| o2
| outside region 2 |
| 73- 95
| M3
| membrane helix 3 |
| 96- 221
| i2
| inside region 2 | |
| 具体的预测结果请参看这里 |
|
| |
| 参考文献: |
| 1.PHD:
predicting one-dimensional protein structure by profile-based neural networks. |
| 2.Prediction
of protein secondary structure at better than 70% accuracy |
| 3.Topology
prediction for helical transmembrane proteins at 86% accuracy |
| 4.The
PROSITE database, its status in 1999. |