Analysis of interatomic Contacts of Structural Units in PDB entry:
7A20

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 7A20 entry

There are 4 chains in PDB entry 7A20 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	MET 1	ALA 268
B	THR 3	LYS 392
C	MET 1	ARG 267
D	THR 2	GLY 395

There are 65 helices in PDB entry 7A20. 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	14	Right-handed alpha
Helix 2	AA2	A	29	43	Right-handed alpha
Helix 3	AA3	A	61	74	Right-handed alpha
Helix 4	AA4	A	77	92	Right-handed alpha
Helix 5	AA5	A	102	108	Right-handed alpha
Helix 6	AA6	A	110	122	Right-handed alpha
Helix 7	AA7	A	132	135	Right-handed 310
Helix 8	AA8	A	136	146	Right-handed alpha
Helix 9	AA9	A	159	170	Right-handed alpha
Helix 10	AB1	A	192	203	Right-handed alpha
Helix 11	AB2	A	216	227	Right-handed alpha
Helix 12	AB3	A	234	244	Right-handed alpha
Helix 13	AB4	A	247	265	Right-handed alpha
Helix 14	AB5	B	18	20	Right-handed 310
Helix 15	AB6	B	21	37	Right-handed alpha
Helix 16	AB7	B	38	52	Right-handed alpha
Helix 17	AB8	B	79	81	Right-handed 310
Helix 18	AB9	B	86	101	Right-handed alpha
Helix 19	AC1	B	113	126	Right-handed alpha
Helix 20	AC2	B	136	141	Right-handed alpha
Helix 21	AC3	B	142	152	Right-handed alpha
Helix 22	AC4	B	165	181	Right-handed alpha
Helix 23	AC5	B	196	206	Right-handed alpha
Helix 24	AC6	B	206	220	Right-handed alpha
Helix 25	AC7	B	234	242	Right-handed alpha
Helix 26	AC8	B	243	245	Right-handed 310
Helix 27	AC9	B	261	265	Right-handed 310
Helix 28	AD1	B	269	274	Right-handed alpha
Helix 29	AD2	B	301	305	Right-handed 310
Helix 30	AD3	B	310	319	Right-handed alpha
Helix 31	AD4	B	329	344	Right-handed alpha
Helix 32	AD5	B	350	364	Right-handed alpha
Helix 33	AD6	B	383	391	Right-handed alpha
Helix 34	AD7	C	2	13	Right-handed alpha
Helix 35	AD8	C	29	43	Right-handed alpha
Helix 36	AD9	C	61	74	Right-handed alpha
Helix 37	AE1	C	77	92	Right-handed alpha
Helix 38	AE2	C	102	108	Right-handed alpha
Helix 39	AE3	C	110	122	Right-handed alpha
Helix 40	AE4	C	132	135	Right-handed 310
Helix 41	AE5	C	136	146	Right-handed alpha
Helix 42	AE6	C	159	170	Right-handed alpha
Helix 43	AE7	C	216	226	Right-handed alpha
Helix 44	AE8	C	234	244	Right-handed alpha
Helix 45	AE9	C	247	265	Right-handed alpha
Helix 46	AF1	D	18	20	Right-handed 310
Helix 47	AF2	D	21	38	Right-handed alpha
Helix 48	AF3	D	38	52	Right-handed alpha
Helix 49	AF4	D	78	81	Right-handed 310
Helix 50	AF5	D	87	101	Right-handed alpha
Helix 51	AF6	D	113	126	Right-handed alpha
Helix 52	AF7	D	136	142	Right-handed alpha
Helix 53	AF8	D	142	152	Right-handed alpha
Helix 54	AF9	D	165	179	Right-handed alpha
Helix 55	AG1	D	196	206	Right-handed alpha
Helix 56	AG2	D	206	221	Right-handed alpha
Helix 57	AG3	D	234	242	Right-handed alpha
Helix 58	AG4	D	243	245	Right-handed 310
Helix 59	AG5	D	269	274	Right-handed alpha
Helix 60	AG6	D	301	305	Right-handed 310
Helix 61	AG7	D	310	319	Right-handed alpha
Helix 62	AG8	D	328	344	Right-handed alpha
Helix 63	AG9	D	348	365	Right-handed alpha
Helix 64	AH1	D	380	382	Right-handed 310
Helix 65	AH2	D	383	395	Right-handed alpha

There are 12 sheets in PDB entry 7A20. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3,

There are 6 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	149	151	first strand
Strand 2	A	125	128	parallel
Strand 3	A	97	101	parallel
Strand 4	A	48	51	parallel
Strand 5	A	18	24	parallel
Strand 6	A	230	233	parallel

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There are 3 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	153	154	first strand
Strand 2	A	174	176	parallel
Strand 3	A	208	210	parallel

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There are 2 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	8	9	first strand
Strand 2	B	12	13	anti-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	B	59	61	first strand
Strand 2	B	71	77	anti-parallel
Strand 3	B	370	376	parallel
Strand 4	B	226	230	parallel
Strand 5	B	251	259	parallel
Strand 6	B	322	328	parallel

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There are 4 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	155	159	first strand
Strand 2	B	129	135	parallel
Strand 3	B	105	110	parallel
Strand 4	B	184	186	parallel

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There are 2 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	275	279	first strand
Strand 2	B	282	286	anti-parallel

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There are 6 strands in AA7 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	125	128	parallel
Strand 3	C	97	101	parallel
Strand 4	C	48	51	parallel
Strand 5	C	18	24	parallel
Strand 6	C	230	233	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	C	153	154	first strand
Strand 2	C	174	176	parallel
Strand 3	C	208	210	parallel

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There are 2 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	8	9	first strand
Strand 2	D	12	13	anti-parallel

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There are 6 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	59	61	first strand
Strand 2	D	71	76	anti-parallel
Strand 3	D	370	375	parallel
Strand 4	D	226	230	parallel
Strand 5	D	251	257	parallel
Strand 6	D	322	327	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	D	155	159	first strand
Strand 2	D	129	135	parallel
Strand 3	D	105	109	parallel
Strand 4	D	184	186	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	D	275	279	first strand
Strand 2	D	282	286	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: 7A20

Analysis of interatomic Contacts of Structural Units in PDB entry:
7A20