Analysis of interatomic Contacts of Structural Units in PDB entry:
2QSD

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 2QSD entry

There are 8 chains in PDB entry 2QSD (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ASP 5	GLU 179
B	ASP 5	GLU 179
C	ASP 5	GLY 180
D	ASP 5	GLU 179
E	ASP 5	GLY 180
F	ASP 5	GLY 180
G	ASP 5	GLY 180
H	ASP 5	GLY 180

There are 24 helices in PDB entry 2QSD. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	35	37	Right-handed 310
Helix 2	2	A	38	46	Right-handed alpha
Helix 3	3	A	111	122	Right-handed alpha
Helix 4	4	B	35	37	Right-handed 310
Helix 5	5	B	38	46	Right-handed alpha
Helix 6	6	B	111	121	Right-handed alpha
Helix 7	7	C	35	37	Right-handed 310
Helix 8	8	C	38	46	Right-handed alpha
Helix 9	9	C	111	122	Right-handed alpha
Helix 10	10	D	35	37	Right-handed 310
Helix 11	11	D	38	46	Right-handed alpha
Helix 12	12	D	111	121	Right-handed alpha
Helix 13	13	E	35	37	Right-handed 310
Helix 14	14	E	38	46	Right-handed alpha
Helix 15	15	E	111	122	Right-handed alpha
Helix 16	16	F	35	37	Right-handed 310
Helix 17	17	F	38	46	Right-handed alpha
Helix 18	18	F	111	121	Right-handed alpha
Helix 19	19	G	35	37	Right-handed 310
Helix 20	20	G	38	46	Right-handed alpha
Helix 21	21	G	111	121	Right-handed alpha
Helix 22	22	H	35	37	Right-handed 310
Helix 23	23	H	38	46	Right-handed alpha
Helix 24	24	H	111	121	Right-handed alpha

There are 24 sheets in PDB entry 2QSD. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X,

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	24	32	first strand
Strand 2	A	7	15	anti-parallel
Strand 3	A	54	60	anti-parallel
Strand 4	A	171	176	anti-parallel

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There are 4 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	63	64	first strand
Strand 2	A	67	72	anti-parallel
Strand 3	A	154	160	anti-parallel
Strand 4	A	150	151	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	104	109	first strand
Strand 2	A	83	88	anti-parallel
Strand 3	A	144	147	anti-parallel

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There are 4 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	24	32	first strand
Strand 2	B	7	15	anti-parallel
Strand 3	B	54	61	anti-parallel
Strand 4	B	171	176	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	B	63	64	first strand
Strand 2	B	67	72	anti-parallel
Strand 3	B	154	160	anti-parallel
Strand 4	B	150	151	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	104	109	first strand
Strand 2	B	83	88	anti-parallel
Strand 3	B	144	148	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	C	24	32	first strand
Strand 2	C	7	15	anti-parallel
Strand 3	C	54	61	anti-parallel
Strand 4	C	171	176	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	63	64	first strand
Strand 2	C	67	72	anti-parallel
Strand 3	C	154	160	anti-parallel
Strand 4	C	150	151	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	104	109	first strand
Strand 2	C	83	88	anti-parallel
Strand 3	C	144	147	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	D	24	32	first strand
Strand 2	D	7	15	anti-parallel
Strand 3	D	54	61	anti-parallel
Strand 4	D	171	176	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	D	63	64	first strand
Strand 2	D	67	72	anti-parallel
Strand 3	D	154	160	anti-parallel
Strand 4	D	150	151	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	D	104	109	first strand
Strand 2	D	83	88	anti-parallel
Strand 3	D	144	147	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	24	32	first strand
Strand 2	E	7	15	anti-parallel
Strand 3	E	54	60	anti-parallel
Strand 4	E	171	176	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	63	64	first strand
Strand 2	E	67	72	anti-parallel
Strand 3	E	154	160	anti-parallel
Strand 4	E	150	151	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	104	109	first strand
Strand 2	E	83	88	anti-parallel
Strand 3	E	144	148	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	24	32	first strand
Strand 2	F	7	15	anti-parallel
Strand 3	F	54	61	anti-parallel
Strand 4	F	171	176	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	63	64	first strand
Strand 2	F	67	72	anti-parallel
Strand 3	F	154	160	anti-parallel
Strand 4	F	150	151	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	104	109	first strand
Strand 2	F	83	88	anti-parallel
Strand 3	F	144	148	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	24	32	first strand
Strand 2	G	7	16	anti-parallel
Strand 3	G	49	61	anti-parallel
Strand 4	G	171	176	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	63	64	first strand
Strand 2	G	67	72	anti-parallel
Strand 3	G	154	160	anti-parallel
Strand 4	G	150	151	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	104	109	first strand
Strand 2	G	83	88	anti-parallel
Strand 3	G	144	148	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	24	32	first strand
Strand 2	H	7	15	anti-parallel
Strand 3	H	54	61	anti-parallel
Strand 4	H	171	176	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	63	64	first strand
Strand 2	H	67	72	anti-parallel
Strand 3	H	154	160	anti-parallel
Strand 4	H	150	151	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	104	109	first strand
Strand 2	H	83	88	anti-parallel
Strand 3	H	144	148	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: 2QSD

Analysis of interatomic Contacts of Structural Units in PDB entry:
2QSD