Analysis of interatomic Contacts of Structural Units in PDB entry:
1CA9

Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
This page provides analyses of contacts formed by:

chains
helices
sheets
residues

For analysis of ligand-protein contacts, use:

LPC software

3D structure can be seen in additional window with STING software for 1CA9 entry

There are 8 chains in PDB entry 1CA9 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLN 311	LEU 501
B	GLN 311	LEU 501
C	GLN 311	LEU 501
D	ALA 316	LEU 501
E	ALA 316	LEU 501
F	ALA 316	LEU 501
G	PRO 422	CYS 428
H	GLY 419	CYS 428

There are 35 helices in PDB entry 1CA9. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	315	318	Right-handed alpha
Helix 2	2	A	320	347	Right-handed alpha
Helix 3	3	A	361	369	Right-handed alpha
Helix 4	4	A	400	402	Right-handed 310
Helix 5	5	A	419	421	Right-handed 310
Helix 6	6	A	454	456	Right-handed 310
Helix 7	7	A	475	479	Right-handed 310
Helix 8	8	B	312	347	Right-handed alpha
Helix 9	9	B	361	369	Right-handed alpha
Helix 10	10	B	400	402	Right-handed 310
Helix 11	11	B	419	421	Right-handed 310
Helix 12	12	B	475	477	Right-handed 310
Helix 13	13	C	312	347	Right-handed alpha
Helix 14	14	C	361	369	Right-handed alpha
Helix 15	15	C	400	402	Right-handed 310
Helix 16	16	C	419	421	Right-handed 310
Helix 17	17	C	454	456	Right-handed 310
Helix 18	18	C	475	477	Right-handed 310
Helix 19	19	D	317	325	Right-handed alpha
Helix 20	20	D	328	347	Right-handed alpha
Helix 21	21	D	361	369	Right-handed alpha
Helix 22	22	D	400	402	Right-handed 310
Helix 23	23	D	454	456	Right-handed 310
Helix 24	24	D	475	477	Right-handed 310
Helix 25	25	E	317	347	Right-handed alpha
Helix 26	26	E	361	369	Right-handed alpha
Helix 27	27	E	400	402	Right-handed 310
Helix 28	28	E	419	421	Right-handed 310
Helix 29	29	E	475	477	Right-handed 310
Helix 30	30	F	319	347	Right-handed alpha
Helix 31	31	F	361	369	Right-handed alpha
Helix 32	32	F	400	402	Right-handed 310
Helix 33	33	F	419	421	Right-handed 310
Helix 34	34	F	454	456	Right-handed 310
Helix 35	35	F	475	477	Right-handed 310

There are 12 sheets in PDB entry 1CA9. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

There are 4 strands in A sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	353	359	first strand
Strand 2	A	489	496	anti-parallel
Strand 3	A	430	434	anti-parallel
Strand 4	A	443	447	anti-parallel

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There are 3 strands in B sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	389	395	first strand
Strand 2	A	408	414	anti-parallel
Strand 3	A	467	469	anti-parallel

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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	353	359	first strand
Strand 2	B	489	496	anti-parallel
Strand 3	B	430	434	anti-parallel
Strand 4	B	443	447	anti-parallel

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There are 3 strands in D sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	389	395	first strand
Strand 2	B	408	414	anti-parallel
Strand 3	B	467	469	anti-parallel

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There are 4 strands in E sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	353	359	first strand
Strand 2	C	489	496	anti-parallel
Strand 3	C	430	434	anti-parallel
Strand 4	C	443	447	anti-parallel

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There are 4 strands in F sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	375	377	first strand
Strand 2	C	389	395	anti-parallel
Strand 3	C	408	414	anti-parallel
Strand 4	C	467	469	anti-parallel

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There are 4 strands in G sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	353	358	first strand
Strand 2	D	490	496	anti-parallel
Strand 3	D	430	434	anti-parallel
Strand 4	D	443	447	anti-parallel

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There are 3 strands in H sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	389	395	first strand
Strand 2	D	408	414	anti-parallel
Strand 3	D	467	469	anti-parallel

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There are 4 strands in I sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	353	359	first strand
Strand 2	E	489	496	anti-parallel
Strand 3	E	430	434	anti-parallel
Strand 4	E	443	447	anti-parallel

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There are 4 strands in J sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	375	377	first strand
Strand 2	E	389	395	anti-parallel
Strand 3	E	408	414	anti-parallel
Strand 4	E	467	469	anti-parallel

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There are 4 strands in K sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	353	359	first strand
Strand 2	F	489	496	anti-parallel
Strand 3	F	430	434	anti-parallel
Strand 4	F	443	447	anti-parallel

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There are 3 strands in L sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	389	395	first strand
Strand 2	F	408	414	anti-parallel
Strand 3	F	467	469	anti-parallel

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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il

Analysis of interatomic Contacts of Structural Units in PDB entry: 1CA9

Analysis of interatomic Contacts of Structural Units in PDB entry:
1CA9