Analysis of interatomic Contacts of Structural Units in PDB entry:
7CHA

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 7CHA entry

There are 12 chains in PDB entry 7CHA (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLN 2	ASN 148
B	THR 3	ASN 148
C	THR 3	ASN 148
D	THR 3	SER 149
E	GLN 2	VAL 150
F	THR 3	LEU 147
G	SER 5	PHE 262
H	SER 5	PHE 262
I	ALA 6	GLY 267
J	ALA 6	GLY 267
K	GLN 3	LEU 100
L	GLN 3	LEU 100

There are 78 helices in PDB entry 7CHA. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	2	21	Right-handed alpha
Helix 2	AA2	A	139	144	Right-handed alpha
Helix 3	AA3	B	4	26	Right-handed alpha
Helix 4	AA4	B	31	36	Right-handed alpha
Helix 5	AA5	B	137	145	Right-handed alpha
Helix 6	AA6	C	4	27	Right-handed alpha
Helix 7	AA7	C	137	145	Right-handed alpha
Helix 8	AA8	D	4	26	Right-handed alpha
Helix 9	AA9	D	137	144	Right-handed alpha
Helix 10	AB1	E	3	20	Right-handed alpha
Helix 11	AB2	E	139	147	Right-handed alpha
Helix 12	AB3	F	4	7	Right-handed 310
Helix 13	AB4	F	8	26	Right-handed alpha
Helix 14	AB5	F	137	145	Right-handed alpha
Helix 15	AB6	G	6	37	Right-handed alpha
Helix 16	AB7	G	45	56	Right-handed alpha
Helix 17	AB8	G	59	84	Right-handed alpha
Helix 18	AB9	G	85	86	Right-handed 310
Helix 19	AC1	G	87	90	Right-handed 310
Helix 20	AC2	G	91	96	Right-handed alpha
Helix 21	AC3	G	97	102	Right-handed alpha
Helix 22	AC4	G	102	113	Right-handed alpha
Helix 23	AC5	G	120	130	Right-handed alpha
Helix 24	AC6	G	131	140	Right-handed alpha
Helix 25	AC7	G	142	147	Right-handed alpha
Helix 26	AC8	G	148	157	Right-handed alpha
Helix 27	AC9	G	158	181	Right-handed alpha
Helix 28	AD1	G	185	195	Right-handed alpha
Helix 29	AD2	G	196	197	Right-handed 310
Helix 30	AD3	G	198	201	Right-handed 310
Helix 31	AD4	G	202	228	Right-handed alpha
Helix 32	AD5	G	231	260	Right-handed alpha
Helix 33	AD6	H	6	37	Right-handed alpha
Helix 34	AD7	H	45	56	Right-handed alpha
Helix 35	AD8	H	59	84	Right-handed alpha
Helix 36	AD9	H	85	86	Right-handed 310
Helix 37	AE1	H	87	90	Right-handed 310
Helix 38	AE2	H	91	96	Right-handed alpha
Helix 39	AE3	H	97	102	Right-handed alpha
Helix 40	AE4	H	102	113	Right-handed alpha
Helix 41	AE5	H	120	130	Right-handed alpha
Helix 42	AE6	H	131	140	Right-handed alpha
Helix 43	AE7	H	142	147	Right-handed alpha
Helix 44	AE8	H	148	157	Right-handed alpha
Helix 45	AE9	H	158	181	Right-handed alpha
Helix 46	AF1	H	185	195	Right-handed alpha
Helix 47	AF2	H	196	197	Right-handed 310
Helix 48	AF3	H	198	201	Right-handed 310
Helix 49	AF4	H	202	228	Right-handed alpha
Helix 50	AF5	H	231	260	Right-handed alpha
Helix 51	AF6	I	46	55	Right-handed alpha
Helix 52	AF7	I	76	84	Right-handed alpha
Helix 53	AF8	I	101	114	Right-handed alpha
Helix 54	AF9	I	117	133	Right-handed alpha
Helix 55	AG1	I	141	145	Right-handed 310
Helix 56	AG2	I	148	160	Right-handed alpha
Helix 57	AG3	I	176	193	Right-handed alpha
Helix 58	AG4	I	204	212	Right-handed alpha
Helix 59	AG5	I	228	234	Right-handed alpha
Helix 60	AG6	I	237	244	Right-handed alpha
Helix 61	AG7	I	262	267	Right-handed alpha
Helix 62	AG8	J	46	55	Right-handed alpha
Helix 63	AG9	J	76	84	Right-handed alpha
Helix 64	AH1	J	101	114	Right-handed alpha
Helix 65	AH2	J	117	133	Right-handed alpha
Helix 66	AH3	J	141	145	Right-handed 310
Helix 67	AH4	J	148	160	Right-handed alpha
Helix 68	AH5	J	176	193	Right-handed alpha
Helix 69	AH6	J	204	212	Right-handed alpha
Helix 70	AH7	J	228	234	Right-handed alpha
Helix 71	AH8	J	237	244	Right-handed alpha
Helix 72	AH9	J	262	267	Right-handed alpha
Helix 73	AI1	K	24	34	Right-handed alpha
Helix 74	AI2	K	55	72	Right-handed alpha
Helix 75	AI3	K	82	92	Right-handed alpha
Helix 76	AI4	L	24	34	Right-handed alpha
Helix 77	AI5	L	55	72	Right-handed alpha
Helix 78	AI6	L	82	92	Right-handed alpha

There are 19 sheets in PDB entry 7CHA. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3, AB4, AB5, AB6, AB7, AB8, AB9, AC1,

There are 3 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	39	46	first strand
Strand 2	A	80	87	anti-parallel
Strand 3	A	68	73	anti-parallel

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There are 5 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	63	66	first strand
Strand 2	A	58	60	anti-parallel
Strand 3	A	110	115	parallel
Strand 4	A	98	103	anti-parallel
Strand 5	A	132	133	parallel

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There are 7 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	39	46	first strand
Strand 2	B	80	87	anti-parallel
Strand 3	B	63	73	anti-parallel
Strand 4	B	57	60	anti-parallel
Strand 5	B	110	114	parallel
Strand 6	B	99	103	anti-parallel
Strand 7	B	132	133	parallel

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There are 6 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	40	46	first strand
Strand 2	C	80	86	anti-parallel
Strand 3	C	63	73	anti-parallel
Strand 4	C	57	60	anti-parallel
Strand 5	C	111	115	parallel
Strand 6	C	98	102	anti-parallel

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There are 6 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	39	46	first strand
Strand 2	D	80	87	anti-parallel
Strand 3	D	63	73	anti-parallel
Strand 4	D	57	60	anti-parallel
Strand 5	D	110	115	parallel
Strand 6	D	98	103	anti-parallel

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There are 3 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	39	46	first strand
Strand 2	E	79	87	anti-parallel
Strand 3	E	68	74	anti-parallel

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There are 5 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	63	66	first strand
Strand 2	E	58	60	anti-parallel
Strand 3	E	112	115	parallel
Strand 4	E	98	101	anti-parallel
Strand 5	E	132	133	parallel

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There are 3 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	40	46	first strand
Strand 2	F	79	86	anti-parallel
Strand 3	F	68	74	anti-parallel

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There are 4 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	63	66	first strand
Strand 2	F	58	60	anti-parallel
Strand 3	F	110	115	parallel
Strand 4	F	98	103	anti-parallel

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There are 3 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	24	32	first strand
Strand 2	I	7	16	anti-parallel
Strand 3	I	62	67	anti-parallel

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There are 4 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	37	39	first strand
Strand 2	I	197	201	parallel
Strand 3	I	165	169	parallel
Strand 4	I	87	90	parallel

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There are 2 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	215	219	first strand
Strand 2	I	222	227	anti-parallel

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There are 3 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	24	32	first strand
Strand 2	J	7	16	anti-parallel
Strand 3	J	62	67	anti-parallel

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There are 4 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	37	39	first strand
Strand 2	J	197	201	parallel
Strand 3	J	165	169	parallel
Strand 4	J	87	90	parallel

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There are 2 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	215	219	first strand
Strand 2	J	222	227	anti-parallel

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There are 4 strands in AB7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	6	7	first strand
Strand 2	K	14	16	anti-parallel
Strand 3	K	44	47	parallel
Strand 4	K	76	79	parallel

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There are 2 strands in AB8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	19	20	first strand
Strand 2	K	53	54	parallel

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There are 4 strands in AB9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	6	7	first strand
Strand 2	L	14	16	anti-parallel
Strand 3	L	44	47	parallel
Strand 4	L	76	79	parallel

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There are 2 strands in AC1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	19	20	first strand
Strand 2	L	53	54	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: 7CHA

Analysis of interatomic Contacts of Structural Units in PDB entry:
7CHA