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

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 2IBG entry

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

Chain ID	Initial residue	Terminal residue
A	SER 464	LYS 677
B	SER 464	PRO 676
C	SER 464	PRO 676
D	SER 464	PRO 676
E	TYR 100	ASP 248
F	LEU 99	LYS 246
G	LEU 99	SER 247
H	TYR 100	ASP 248

There are 23 helices in PDB entry 2IBG. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	606	610	Right-handed 310
Helix 2	2	B	572	576	Right-handed 310
Helix 3	3	B	606	610	Right-handed 310
Helix 4	4	C	606	610	Right-handed 310
Helix 5	5	E	130	136	Right-handed 310
Helix 6	6	E	159	177	Right-handed alpha
Helix 7	7	E	198	203	Right-handed 310
Helix 8	8	E	214	216	Right-handed 310
Helix 9	9	E	217	229	Right-handed alpha
Helix 10	10	F	132	136	Right-handed 310
Helix 11	11	F	159	177	Right-handed alpha
Helix 12	12	F	198	203	Right-handed 310
Helix 13	13	F	214	216	Right-handed 310
Helix 14	14	F	217	228	Right-handed alpha
Helix 15	15	G	159	177	Right-handed alpha
Helix 16	16	G	198	203	Right-handed 310
Helix 17	17	G	214	216	Right-handed 310
Helix 18	18	G	217	228	Right-handed alpha
Helix 19	19	H	130	136	Right-handed 310
Helix 20	20	H	159	177	Right-handed alpha
Helix 21	21	H	199	203	Right-handed 310
Helix 22	22	H	214	216	Right-handed 310
Helix 23	23	H	217	229	Right-handed alpha

There are 29 sheets in PDB entry 2IBG. 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, Y, Z, AA, AB, AC,

There are 3 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	472	477	first strand
Strand 2	A	480	488	anti-parallel
Strand 3	A	530	537	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	512	513	first strand
Strand 2	A	495	504	anti-parallel
Strand 3	A	545	554	anti-parallel
Strand 4	A	559	561	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	A	518	519	first strand
Strand 2	A	495	504	anti-parallel
Strand 3	A	545	554	anti-parallel
Strand 4	A	568	569	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	A	583	584	first strand
Strand 2	A	595	600	anti-parallel
Strand 3	A	638	641	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	A	627	632	first strand
Strand 2	A	612	619	anti-parallel
Strand 3	A	649	657	anti-parallel
Strand 4	A	669	672	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	472	477	first strand
Strand 2	B	480	488	anti-parallel
Strand 3	B	530	537	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	B	512	513	first strand
Strand 2	B	495	504	anti-parallel
Strand 3	B	545	554	anti-parallel
Strand 4	B	559	561	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	B	518	519	first strand
Strand 2	B	495	504	anti-parallel
Strand 3	B	545	554	anti-parallel
Strand 4	B	568	569	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	B	583	584	first strand
Strand 2	B	594	600	anti-parallel
Strand 3	B	588	591	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	583	584	first strand
Strand 2	B	594	600	anti-parallel
Strand 3	B	638	641	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	B	627	632	first strand
Strand 2	B	612	619	anti-parallel
Strand 3	B	649	657	anti-parallel
Strand 4	B	669	672	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	C	472	477	first strand
Strand 2	C	480	488	anti-parallel
Strand 3	C	530	537	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	C	512	513	first strand
Strand 2	C	495	504	anti-parallel
Strand 3	C	545	554	anti-parallel
Strand 4	C	559	561	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	C	518	519	first strand
Strand 2	C	495	504	anti-parallel
Strand 3	C	545	554	anti-parallel
Strand 4	C	568	569	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	C	583	584	first strand
Strand 2	C	595	600	anti-parallel
Strand 3	C	638	641	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	C	627	632	first strand
Strand 2	C	612	619	anti-parallel
Strand 3	C	649	657	anti-parallel
Strand 4	C	669	672	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	472	477	first strand
Strand 2	D	480	488	anti-parallel
Strand 3	D	530	537	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	512	513	first strand
Strand 2	D	495	504	anti-parallel
Strand 3	D	545	554	anti-parallel
Strand 4	D	559	561	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	D	518	519	first strand
Strand 2	D	495	504	anti-parallel
Strand 3	D	545	554	anti-parallel
Strand 4	D	568	569	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	583	591	first strand
Strand 2	D	594	600	anti-parallel
Strand 3	D	638	641	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	627	632	first strand
Strand 2	D	612	619	anti-parallel
Strand 3	D	649	657	anti-parallel
Strand 4	D	669	672	anti-parallel

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There are 6 strands in V sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	107	108	first strand
Strand 2	E	232	234	anti-parallel
Strand 3	E	241	244	anti-parallel
Strand 4	E	205	210	anti-parallel
Strand 5	E	182	186	anti-parallel
Strand 6	E	144	146	parallel

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There are 2 strands in W sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	137	138	first strand
Strand 2	E	157	158	anti-parallel

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There are 6 strands in X sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	107	108	first strand
Strand 2	F	232	234	anti-parallel
Strand 3	F	241	244	anti-parallel
Strand 4	F	205	210	anti-parallel
Strand 5	F	182	186	anti-parallel
Strand 6	F	144	146	parallel

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There are 2 strands in Y sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	137	138	first strand
Strand 2	F	157	158	anti-parallel

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There are 6 strands in Z sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	107	108	first strand
Strand 2	G	232	237	anti-parallel
Strand 3	G	240	244	anti-parallel
Strand 4	G	205	210	anti-parallel
Strand 5	G	182	186	anti-parallel
Strand 6	G	144	146	parallel

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There are 2 strands in AA sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	137	138	first strand
Strand 2	G	157	158	anti-parallel

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There are 6 strands in AB sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	107	108	first strand
Strand 2	H	232	234	anti-parallel
Strand 3	H	241	244	anti-parallel
Strand 4	H	205	210	anti-parallel
Strand 5	H	182	186	anti-parallel
Strand 6	H	144	145	parallel

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There are 2 strands in AC sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	137	138	first strand
Strand 2	H	157	158	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: 2IBG

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