Analysis of interatomic Contacts of Structural Units in PDB entry:
7AB4

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 7AB4 entry

Note, this PDB entry contains modified residue(s) PHOSPHOSERINE (SEP) . This residue is treated as heterogroup (ligand) both in the PDB entry and in LPC/CSU analysis.

There are 7 chains in PDB entry 7AB4 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	PRO 36	GLU 107
B	HIS 2	TRP 101
C	ALA 2	HIS 340
D	PRO 36	GLU 107
E	HIS 2	TRP 101
F	ALA 2	MET 56
F	ILE 58	HIS 341

There are 49 helices in PDB entry 7AB4. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	44	60	Right-handed alpha
Helix 2	AA2	A	62	71	Right-handed alpha
Helix 3	AA3	A	73	81	Right-handed alpha
Helix 4	AA4	A	83	87	Right-handed 310
Helix 5	AA5	A	88	99	Right-handed alpha
Helix 6	AA6	B	54	60	Right-handed alpha
Helix 7	AA7	B	63	75	Right-handed alpha
Helix 8	AA8	B	81	88	Right-handed alpha
Helix 9	AA9	C	12	17	Right-handed alpha
Helix 10	AB1	C	21	29	Right-handed alpha
Helix 11	AB2	C	41	46	Right-handed alpha
Helix 12	AB3	C	57	62	Right-handed 310
Helix 13	AB4	C	94	109	Right-handed alpha
Helix 14	AB5	C	152	156	Right-handed alpha
Helix 15	AB6	C	174	186	Right-handed alpha
Helix 16	AB7	C	189	206	Right-handed alpha
Helix 17	AB8	C	212	215	Right-handed 310
Helix 18	AB9	C	240	245	Right-handed alpha
Helix 19	AC1	C	254	261	Right-handed 310
Helix 20	AC2	C	264	269	Right-handed alpha
Helix 21	AC3	C	275	287	Right-handed alpha
Helix 22	AC4	C	289	303	Right-handed alpha
Helix 23	AC5	C	303	313	Right-handed alpha
Helix 24	AC6	C	317	334	Right-handed alpha
Helix 25	AC7	C	335	337	Right-handed 310
Helix 26	AC8	D	44	60	Right-handed alpha
Helix 27	AC9	D	62	71	Right-handed alpha
Helix 28	AD1	D	73	81	Right-handed alpha
Helix 29	AD2	D	83	87	Right-handed 310
Helix 30	AD3	D	88	99	Right-handed alpha
Helix 31	AD4	E	54	60	Right-handed alpha
Helix 32	AD5	E	64	72	Right-handed alpha
Helix 33	AD6	E	80	88	Right-handed alpha
Helix 34	AD7	F	21	29	Right-handed alpha
Helix 35	AD8	F	41	46	Right-handed 310
Helix 36	AD9	F	94	109	Right-handed alpha
Helix 37	AE1	F	141	145	Right-handed 310
Helix 38	AE2	F	152	156	Right-handed alpha
Helix 39	AE3	F	174	186	Right-handed alpha
Helix 40	AE4	F	189	206	Right-handed alpha
Helix 41	AE5	F	212	215	Right-handed 310
Helix 42	AE6	F	240	245	Right-handed alpha
Helix 43	AE7	F	254	261	Right-handed 310
Helix 44	AE8	F	264	269	Right-handed alpha
Helix 45	AE9	F	275	287	Right-handed alpha
Helix 46	AF1	F	289	303	Right-handed alpha
Helix 47	AF2	F	303	313	Right-handed alpha
Helix 48	AF3	F	317	334	Right-handed alpha
Helix 49	AF4	F	335	337	Right-handed 310

There are 7 sheets in PDB entry 7AB4. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7,

There are 4 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	40	41	first strand
Strand 2	D	102	106	anti-parallel
Strand 3	A	102	106	anti-parallel
Strand 4	D	40	42	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	B	47	50	first strand
Strand 2	B	24	28	anti-parallel
Strand 3	B	12	19	anti-parallel
Strand 4	B	3	9	anti-parallel
Strand 5	B	96	100	anti-parallel

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There are 5 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	73	76	first strand
Strand 2	C	65	70	anti-parallel
Strand 3	C	83	86	anti-parallel
Strand 4	C	131	136	anti-parallel
Strand 5	C	116	120	anti-parallel

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There are 3 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	149	151	first strand
Strand 2	C	217	219	anti-parallel
Strand 3	C	227	228	anti-parallel

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There are 5 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	47	50	first strand
Strand 2	E	24	28	anti-parallel
Strand 3	E	12	19	anti-parallel
Strand 4	E	3	9	anti-parallel
Strand 5	E	96	100	anti-parallel

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There are 5 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	73	76	first strand
Strand 2	F	65	70	anti-parallel
Strand 3	F	83	86	anti-parallel
Strand 4	F	131	136	anti-parallel
Strand 5	F	116	120	anti-parallel

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There are 3 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	149	151	first strand
Strand 2	F	217	219	anti-parallel
Strand 3	F	227	228	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: 7AB4

Analysis of interatomic Contacts of Structural Units in PDB entry:
7AB4