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

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 2HTB entry

There are 4 chains in PDB entry 2HTB (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	SER -1	ARG 294
B	SER -1	ARG 294
C	HIS 0	ARG 294
D	SER -1	ARG 294

There are 28 helices in PDB entry 2HTB. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	-1	7	Right-handed alpha
Helix 2	2	A	43	45	Right-handed 310
Helix 3	3	A	97	101	Right-handed 310
Helix 4	4	A	124	129	Right-handed alpha
Helix 5	5	A	171	173	Right-handed 310
Helix 6	6	A	244	252	Right-handed alpha
Helix 7	7	A	258	261	Right-handed 310
Helix 8	8	B	-1	8	Right-handed alpha
Helix 9	9	B	43	45	Right-handed 310
Helix 10	10	B	97	101	Right-handed 310
Helix 11	11	B	124	131	Right-handed alpha
Helix 12	12	B	171	173	Right-handed 310
Helix 13	13	B	244	252	Right-handed alpha
Helix 14	14	B	258	261	Right-handed 310
Helix 15	15	C	0	8	Right-handed alpha
Helix 16	16	C	43	45	Right-handed 310
Helix 17	17	C	97	101	Right-handed 310
Helix 18	18	C	124	129	Right-handed alpha
Helix 19	19	C	171	173	Right-handed 310
Helix 20	20	C	244	252	Right-handed alpha
Helix 21	21	C	258	261	Right-handed 310
Helix 22	22	D	0	8	Right-handed alpha
Helix 23	23	D	43	45	Right-handed 310
Helix 24	24	D	97	101	Right-handed 310
Helix 25	25	D	124	129	Right-handed alpha
Helix 26	26	D	171	173	Right-handed 310
Helix 27	27	D	245	252	Right-handed alpha
Helix 28	28	D	258	261	Right-handed 310

There are 16 sheets in PDB entry 2HTB. 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,

There are 5 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	12	13	first strand
Strand 2	A	18	23	anti-parallel
Strand 3	A	26	33	anti-parallel
Strand 4	A	36	41	anti-parallel
Strand 5	A	46	52	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	79	80	first strand
Strand 2	A	157	163	anti-parallel
Strand 3	A	263	277	anti-parallel
Strand 4	A	166	168	anti-parallel

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There are 7 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	79	80	first strand
Strand 2	A	157	163	anti-parallel
Strand 3	A	263	277	anti-parallel
Strand 4	A	238	243	anti-parallel
Strand 5	A	207	211	anti-parallel
Strand 6	A	183	186	anti-parallel
Strand 7	A	193	195	anti-parallel

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There are 9 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	104	110	first strand
Strand 2	A	115	122	anti-parallel
Strand 3	A	136	143	anti-parallel
Strand 4	A	147	154	anti-parallel
Strand 5	A	283	293	anti-parallel
Strand 6	A	227	234	anti-parallel
Strand 7	A	217	222	anti-parallel
Strand 8	A	175	178	anti-parallel
Strand 9	A	201	202	anti-parallel

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There are 5 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	12	13	first strand
Strand 2	B	18	23	anti-parallel
Strand 3	B	26	33	anti-parallel
Strand 4	B	36	41	anti-parallel
Strand 5	B	46	52	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	B	79	80	first strand
Strand 2	B	157	163	anti-parallel
Strand 3	B	263	277	anti-parallel
Strand 4	B	166	168	anti-parallel

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There are 7 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	79	80	first strand
Strand 2	B	157	163	anti-parallel
Strand 3	B	263	277	anti-parallel
Strand 4	B	238	243	anti-parallel
Strand 5	B	207	211	anti-parallel
Strand 6	B	183	186	anti-parallel
Strand 7	B	192	195	anti-parallel

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There are 9 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	104	110	first strand
Strand 2	B	115	122	anti-parallel
Strand 3	B	136	143	anti-parallel
Strand 4	B	147	154	anti-parallel
Strand 5	B	283	293	anti-parallel
Strand 6	B	227	234	anti-parallel
Strand 7	B	217	222	anti-parallel
Strand 8	B	175	178	anti-parallel
Strand 9	B	201	202	anti-parallel

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There are 5 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	12	13	first strand
Strand 2	C	18	23	anti-parallel
Strand 3	C	26	33	anti-parallel
Strand 4	C	36	41	anti-parallel
Strand 5	C	46	52	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	C	79	80	first strand
Strand 2	C	157	163	anti-parallel
Strand 3	C	263	277	anti-parallel
Strand 4	C	166	168	anti-parallel

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There are 7 strands in K sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	79	80	first strand
Strand 2	C	157	163	anti-parallel
Strand 3	C	263	277	anti-parallel
Strand 4	C	238	243	anti-parallel
Strand 5	C	207	211	anti-parallel
Strand 6	C	183	186	anti-parallel
Strand 7	C	192	195	anti-parallel

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There are 9 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	104	110	first strand
Strand 2	C	115	122	anti-parallel
Strand 3	C	135	143	anti-parallel
Strand 4	C	147	155	anti-parallel
Strand 5	C	283	293	anti-parallel
Strand 6	C	227	234	anti-parallel
Strand 7	C	217	222	anti-parallel
Strand 8	C	175	178	anti-parallel
Strand 9	C	201	202	anti-parallel

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There are 5 strands in M sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	12	13	first strand
Strand 2	D	18	23	anti-parallel
Strand 3	D	26	32	anti-parallel
Strand 4	D	36	41	anti-parallel
Strand 5	D	46	52	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	D	79	80	first strand
Strand 2	D	157	163	anti-parallel
Strand 3	D	263	277	anti-parallel
Strand 4	D	166	168	anti-parallel

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There are 7 strands in O sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	79	80	first strand
Strand 2	D	157	163	anti-parallel
Strand 3	D	263	277	anti-parallel
Strand 4	D	238	243	anti-parallel
Strand 5	D	207	211	anti-parallel
Strand 6	D	183	186	anti-parallel
Strand 7	D	192	195	anti-parallel

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There are 9 strands in P sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	104	110	first strand
Strand 2	D	115	122	anti-parallel
Strand 3	D	136	143	anti-parallel
Strand 4	D	147	154	anti-parallel
Strand 5	D	283	293	anti-parallel
Strand 6	D	227	234	anti-parallel
Strand 7	D	217	222	anti-parallel
Strand 8	D	175	178	anti-parallel
Strand 9	D	201	202	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: 2HTB

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