D-I-TASSER Q8IVL8

D-I-TASSER results for Q8IVL8

[Click result.zip to download all results on this page]

Summary of the Protein

Uniprot ID: Q8IVL8
Protein Name: Carboxypeptidase O
Gene Name: CPO

Input Sequence in FASTA format

>Q8IVL8 (374 residues)
MKPLLETLYLLGMLVPGGLGYDRSLAQHRQEIVDKSVSPWSLETYSYNIYHPMGEIYEWM
REISEKYKEVVTQHFLGVTYETHPMYYLKISQPSGNPKKIIWMDCGIHAREWIAPAFCQW
FVKEILQNHKDNSSIRKLLRNLDFYVLPVLNIDGYIYTWTTDRLWRKSRSPHNNGTCFGT
DLNRNFNASWCSIGASRNCQDQTFCGTGPVSEPETKAVASFIESKKDDILCFLTMHSYGQ
LILTPYGYTKNKSSNHPEMIQVGQKAANALKAKYGTNYRVGSSADILYASSGSSRDWARD
IGIPFSYTFELRDSGTYGFVLPEAQIQPTCEETMEAVLSVLDDVYAKHWHSDSAGRVTSA
TMLLGLLVSCMSLL

Predicted Contact and Distance Map Used in D-I-TASSER simulation

Contact Map

Distance Map

D-I-TASSER simulation is guided by the consensus contact map (left figure) and distance map (right figure) derived based on confidence scores of AttentionPotential. In the contact, distance map and hydrogen bond networks, the axes mark the residue index along the sequence. For the contact map, each dot represents a residue pair with predicted contact, while for the distance map and hydrogen bond network, a color scale represents a distance of 1-20+ angstroms or a angle of 0-180 degree.

Information of Domain

No. of Domain	Domain	Domain Boundary	Length of Domain	Models of Domain	Sequence
1	Q8IVL8-D1	1-374	374		MKPLLETLYLLGMLVPGGLGYDRSLAQHRQEIVDKSVSPWSLETYSYNIYHPMGEIYEWMREISEKYKEVVTQHFLGVTYETHPMYYLKISQPSGNPKKIIWMDCGIHAREWIAPAFCQWFVKEILQNHKDNSSIRKLLRNLDFYVLPVLNIDGYIYTWTTDRLWRKSRSPHNNGTCFGTDLNRNFNASWCSIGASRNCQDQTFCGTGPVSEPETKAVASFIESKKDDILCFLTMHSYGQLILTPYGYTKNKSSNHPEMIQVGQKAANALKAKYGTNYRVGSSADILYASSGSSRDWARDIGIPFSYTFELRDSGTYGFVLPEAQIQPTCEETMEAVLSVLDDVYAKHWHSDSAGRVTSATMLLGLLVSCMSLL

Top 1 final models from D-I-TASSER

Click to view	Rank^a	Download	Estimated TM-score^b
	1	model1.pdb.gz	0.8041

(a)

D-I-TASSER simulations generate a large ensemble of structural conformations, i.e. decoys. These decoys are clustered by SPICKER based on pairwise structure similarity to report up to five final models from the five largest clusters. Models are ranked in descending order of cluster size. If the simulations converge well, it is possible to have less than 5 models generated, which is usually an indication of good model quality.

(b)

The model confidence is quantitatified by estimated TM-score (eTM-score), calculated based on significance of threading template alignments, contact map satisfaction rate, mean absolute error between distance of model and distance of AttentionPotential, and convergence of D-I-TASSER simulations. eTM-score is typically in the range of [0, 1], with higher eTM-score signifies higher model confidence.

Proteins with similar structure

Top 10 structural analogs in PDB (as identified by TM-align)

Rank	PDB Hit	TM-score	RMSD^a	IDEN^a	Cov.	Download Alignment
1	2boaA	0.90	1.57	0.365	0.930	model1_2boaA.pdb.gz
2	1pcaA	0.89	1.53	0.350	0.925	model1_1pcaA.pdb.gz
3	1ayeA	0.89	1.57	0.350	0.925	model1_1ayeA.pdb.gz
4	1kwmA	0.89	1.83	0.427	0.928	model1_1kwmA.pdb.gz
5	3d67A	0.88	1.97	0.414	0.930	model1_3d67A.pdb.gz
6	1jqgA	0.87	2.03	0.265	0.920	model1_1jqgA.pdb.gz
7	5mrvA	0.81	0.96	0.987	0.821	model1_5mrvA.pdb.gz
8	2c1cA	0.78	1.29	0.369	0.805	model1_2c1cA.pdb.gz
9	1obrA	0.78	2.10	0.280	0.818	model1_1obrA.pdb.gz
10	1uwyA	0.70	2.90	0.134	0.778	model1_1uwyA.pdb.gz

(a)	Query structure is shown in cartoon, while the structural analog is displayed using backbone trace.
(b)	Ranking of proteins is based on TM-score of the structural alignment between the query structure and known structures in the PDB library.
(c)	RMSD^a is the RMSD between residues that are structurally aligned by TM-align.
(d)	IDEN^a is the percentage sequence identity in the structurally aligned region.
(e)	Cov. represents the coverage of the alignment by TM-align and is equal to the number of structurally aligned residues divided by length of the query protein.

Predicted Gene Ontology (GO) Terms

Molecular Function (MF)

GO term	Cscore^GO	Name
GO:0004181	1.00	metallocarboxypeptidase activity

Download full result of the above consensus prediction.

Click the graph to show a high resolution version.

(a)

Cscore^GO is the confidence score of predicted GO terms. Cscore^GO values range in between [0-1]; where a higher value indicates a better confidence in predicting the function using the template.

(b)

The graph shows the predicted terms within the Gene Ontology hierachy for Molecular Function. Confidently predicted terms are color coded by Cscore^GO:

[0.4,0.5)

[0.5,0.6)

[0.6,0.7)

[0.7,0.8)

[0.8,0.9)

[0.9,1.0]

Biological Process (BP)

GO term	Cscore^GO	Name
GO:0009987	0.87	cellular process
GO:0008152	0.86	metabolic process
GO:0071704	0.84	organic substance metabolic process
GO:0044238	0.83	primary metabolic process
GO:0043170	0.81	macromolecule metabolic process
GO:0019538	0.80	protein metabolic process
GO:0044237	0.76	cellular metabolic process
GO:0044699	0.66	single-organism process
GO:0006508	0.66	proteolysis
GO:0065007	0.60	biological regulation
GO:0050789	0.56	regulation of biological process
GO:0006807	0.55	nitrogen compound metabolic process
GO:0034641	0.54	cellular nitrogen compound metabolic process
GO:0065008	0.53	regulation of biological quality
GO:1901564	0.52	organonitrogen compound metabolic process
GO:0016485	0.51	protein processing
GO:0006518	0.51	peptide metabolic process
GO:0048583	0.50	regulation of response to stimulus
GO:0048519	0.50	negative regulation of biological process
GO:0044763	0.50	single-organism cellular process

Download full result of the above consensus prediction.

Click the graph to show a high resolution version.

(a)

Cscore^GO is the confidence score of predicted GO terms. Cscore^GO values range in between [0-1]; where a higher value indicates a better confidence in predicting the function using the template.

(b)

The graph shows the predicted terms within the Gene Ontology hierachy for Biological Process. Confidently predicted terms are color coded by Cscore^GO:

[0.4,0.5)

[0.5,0.6)

[0.6,0.7)

[0.7,0.8)

[0.8,0.9)

[0.9,1.0]

Cellular Component (CC)

GO term	Cscore^GO	Name
GO:0005615	0.99	extracellular space
GO:0044464	0.79	cell part
GO:0044424	0.61	intracellular part

Download full result of the above consensus prediction.

Click the graph to show a high resolution version.

(a)

Cscore^GO is the confidence score of predicted GO terms. Cscore^GO values range in between [0-1]; where a higher value indicates a better confidence in predicting the function using the template.

(b)

The graph shows the predicted terms within the Gene Ontology hierachy for Cellular Component. Confidently predicted terms are color coded by Cscore^GO:

[0.4,0.5)

[0.5,0.6)

[0.6,0.7)

[0.7,0.8)

[0.8,0.9)

[0.9,1.0]

Predicted Enzyme Commission (EC) Numbers

Top 5 enzyme homologs in PDB

Rank	Cscore^EC	PDB Hit	TM-score	RMSD^a	IDEN^a	Cov.	EC Number	Predicted Active Site Residues
1	0.586	1nsaA	0.873	1.77	0.422	0.912	3.4.17.2	110,166,310
2	0.525	1cpbB	0.512	2.52	0.528	0.548	3.4.17.2	166,310
3	0.442	1ayeA	0.886	1.62	0.352	0.920	3.4.17.15	108
4	0.368	1obrA	0.778	2.10	0.280	0.818	3.4.17.18	110,310
5	0.262	2c1cA	0.781	1.30	0.369	0.805	3.4.17.2	107

	Click on the radio buttons to visualize predicted active site residues.
(a)	Cscore^EC is the confidence score for the Enzyme Commission (EC) number prediction. Cscore^EC values range in between [0-1]; where a higher score indicates a more reliable EC number prediction.
(b)	TM-score is a measure of global structural similarity between query and template protein.
(c)	RMSD^a is the RMSD between residues that are structurally aligned by TM-align.
(d)	IDEN^a is the percentage sequence identity in the structurally aligned region.
(e)	Cov. represents the coverage of global structural alignment and is equal to the number of structurally aligned residues divided by length of the query protein.

Predicted Ligand Binding Sites

Template proteins with similar binding site:

Rank	Cscore^LB	PDB Hit	TM-score	RMSD^a	IDEN^a	Cov.	BS-score	Lig. Name	Download Complex	Predicted binding site residues
1	0.73	2pizA	0.804	0.87	0.469	0.816	1.66	606	complex1.pdb.gz	108,111,166,184,236,237,238,239,247,287,288,290,293,295,310
2	0.73	3d68C	0.884	1.94	0.408	0.930	1.43	ARG	complex2.pdb.gz	108,166,183,184,247,288,295,308,310
3	0.56	3lmsA	0.800	1.29	0.453	0.821	0.95	GLY	complex3.pdb.gz	108,166,183,184
4	0.54	3fx6A	0.803	0.93	0.387	0.816	1.43	BPX	complex4.pdb.gz	108,110,111,166,183,184,236,283,288,308,310,319
5	0.54	3d67B	0.882	1.98	0.411	0.930	0.81	GEM	complex5.pdb.gz	108,111,166,236,288,291,310
6	0.51	1bavC	0.803	0.95	0.393	0.816	1.00	BIP	complex6.pdb.gz	108,183,184,236,290,308,310
7	0.28	1zli0	0.807	0.85	0.464	0.818	1.55	III	complex7.pdb.gz	110,111,112,159,160,161,162,163,164,166,194,201,202,203,236,237,238,239,286,287,288,289,310,319,320
8	0.07	4cpa0	0.803	0.97	0.393	0.816	1.21	III	complex8.pdb.gz	110,111,164,166,236,237,238,285,286,287,288,319

	Click on the radio buttons to visualize predicted binding site and residues.
(a)	Cscore^LB is the confidence score of predicted binding site. Cscore^LB values range in between [0-1]; where a higher score indicates a more reliable ligand-binding site prediction.
(b)	BS-score is a measure of local similarity (sequence & structure) between template binding site and predicted binding site in the query structure. Based on large scale benchmarking analysis, we have observed that a BS-score >1 reflects a significant local match between the predicted and template binding site.
(c)	TM-score is a measure of global structural similarity between query and template protein.
(d)	RMSD^a the RMSD between residues that are structurally aligned by TM-align.
(e)	IDEN^a is the percentage sequence identity in the structurally aligned region.
(f)	Cov. represents the coverage of global structural alignment and is equal to the number of structurally aligned residues divided by length of the query protein.

[Click result.zip to download all results on this page]

References:
1.	Wei Zheng, Chengxin Zhang, Yang Li, Robin Pearce, Eric W. Bell, Yang Zhang. Folding non-homology proteins by coupling deep-learning contact maps with I-TASSER assembly simulations. In preparation, 2020.