Analysis of interatomic Contacts of Structural Units in PDB entry:
4X1I

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 4X1I entry

There are 3 chains in PDB entry 4X1I (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ARG 2	VAL 437
B	GLU 3	ALA 440
C	MET 1	ASP 431

There are 78 helices in PDB entry 4X1I. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	10	29	Right-handed alpha
Helix 2	AA2	A	47	51	Right-handed 310
Helix 3	AA3	A	72	77	Right-handed alpha
Helix 4	AA4	A	102	108	Right-handed alpha
Helix 5	AA5	A	109	127	Right-handed alpha
Helix 6	AA6	A	147	161	Right-handed alpha
Helix 7	AA7	A	182	194	Right-handed alpha
Helix 8	AA8	A	206	216	Right-handed alpha
Helix 9	AA9	A	223	244	Right-handed alpha
Helix 10	AB1	A	252	260	Right-handed alpha
Helix 11	AB2	A	287	294	Right-handed alpha
Helix 12	AB3	A	295	296	Right-handed 310
Helix 13	AB4	A	297	301	Right-handed 310
Helix 14	AB5	A	324	339	Right-handed alpha
Helix 15	AB6	A	384	401	Right-handed alpha
Helix 16	AB7	A	404	411	Right-handed alpha
Helix 17	AB8	A	415	436	Right-handed alpha
Helix 18	AB9	B	10	28	Right-handed alpha
Helix 19	AC1	B	48	51	Right-handed 310
Helix 20	AC2	B	72	80	Right-handed alpha
Helix 21	AC3	B	83	87	Right-handed 310
Helix 22	AC4	B	88	90	Right-handed 310
Helix 23	AC5	B	102	108	Right-handed alpha
Helix 24	AC6	B	108	128	Right-handed alpha
Helix 25	AC7	B	144	161	Right-handed alpha
Helix 26	AC8	B	182	198	Right-handed alpha
Helix 27	AC9	B	206	215	Right-handed alpha
Helix 28	AD1	B	223	238	Right-handed alpha
Helix 29	AD2	B	239	244	Right-handed alpha
Helix 30	AD3	B	251	260	Right-handed alpha
Helix 31	AD4	B	287	297	Right-handed alpha
Helix 32	AD5	B	298	301	Right-handed 310
Helix 33	AD6	B	306	310	Right-handed 310
Helix 34	AD7	B	324	339	Right-handed alpha
Helix 35	AD8	B	340	343	Right-handed 310
Helix 36	AD9	B	384	401	Right-handed alpha
Helix 37	AE1	B	405	410	Right-handed alpha
Helix 38	AE2	B	415	436	Right-handed alpha
Helix 39	AE3	C	10	28	Right-handed alpha
Helix 40	AE4	C	46	51	Right-handed 310
Helix 41	AE5	C	71	80	Right-handed alpha
Helix 42	AE6	C	88	90	Right-handed 310
Helix 43	AE7	C	102	108	Right-handed alpha
Helix 44	AE8	C	111	127	Right-handed alpha
Helix 45	AE9	C	143	161	Right-handed alpha
Helix 46	AF1	C	182	195	Right-handed alpha
Helix 47	AF2	C	196	198	Right-handed 310
Helix 48	AF3	C	206	217	Right-handed alpha
Helix 49	AF4	C	223	244	Right-handed alpha
Helix 50	AF5	C	253	260	Right-handed alpha
Helix 51	AF6	C	287	295	Right-handed alpha
Helix 52	AF7	C	296	301	Right-handed 310
Helix 53	AF8	C	324	338	Right-handed alpha
Helix 54	AF9	C	384	400	Right-handed alpha
Helix 55	AG1	C	404	411	Right-handed alpha
Helix 56	AG2	C	414	436	Right-handed alpha
Helix 57	AG3	D	10	28	Right-handed alpha
Helix 58	AG4	D	41	48	Right-handed alpha
Helix 59	AG5	D	49	51	Right-handed 310
Helix 60	AG6	D	72	80	Right-handed alpha
Helix 61	AG7	D	83	87	Right-handed 310
Helix 62	AG8	D	88	90	Right-handed 310
Helix 63	AG9	D	102	109	Right-handed alpha
Helix 64	AH1	D	109	128	Right-handed alpha
Helix 65	AH2	D	146	161	Right-handed alpha
Helix 66	AH3	D	182	198	Right-handed alpha
Helix 67	AH4	D	206	216	Right-handed alpha
Helix 68	AH5	D	223	244	Right-handed alpha
Helix 69	AH6	D	251	260	Right-handed alpha
Helix 70	AH7	D	287	296	Right-handed alpha
Helix 71	AH8	D	297	301	Right-handed 310
Helix 72	AH9	D	306	310	Right-handed 310
Helix 73	AI1	D	324	339	Right-handed alpha
Helix 74	AI2	D	340	343	Right-handed 310
Helix 75	AI3	D	384	402	Right-handed alpha
Helix 76	AI4	D	405	410	Right-handed alpha
Helix 77	AI5	D	414	438	Right-handed alpha
Helix 78	AI6	E	46	141	Right-handed alpha

There are 11 sheets in PDB entry 4X1I. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2,

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	92	94	first strand
Strand 2	A	65	69	parallel
Strand 3	A	5	9	parallel
Strand 4	A	134	139	parallel
Strand 5	A	165	172	parallel
Strand 6	A	200	205	parallel

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There are 2 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	53	55	first strand
Strand 2	A	61	63	anti-parallel

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There are 6 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	269	273	first strand
Strand 2	A	373	381	anti-parallel
Strand 3	A	312	321	anti-parallel
Strand 4	A	349	356	parallel
Strand 5	E	18	25	anti-parallel
Strand 6	E	12	13	anti-parallel

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There are 10 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	92	94	first strand
Strand 2	B	65	69	parallel
Strand 3	B	4	9	parallel
Strand 4	B	134	140	parallel
Strand 5	B	165	172	parallel
Strand 6	B	200	205	parallel
Strand 7	B	267	273	parallel
Strand 8	B	375	381	anti-parallel
Strand 9	B	312	320	anti-parallel
Strand 10	B	351	356	parallel

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There are 2 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	30	31	first strand
Strand 2	B	35	36	anti-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	53	55	first strand
Strand 2	B	61	63	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	92	94	first strand
Strand 2	C	65	69	parallel
Strand 3	C	4	9	parallel
Strand 4	C	134	140	parallel
Strand 5	C	165	172	parallel
Strand 6	C	200	205	parallel

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There are 2 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	53	55	first strand
Strand 2	C	61	63	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	C	269	273	first strand
Strand 2	C	374	381	anti-parallel
Strand 3	C	312	320	anti-parallel
Strand 4	C	352	355	parallel

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There are 10 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	92	94	first strand
Strand 2	D	65	69	parallel
Strand 3	D	3	9	parallel
Strand 4	D	132	140	parallel
Strand 5	D	165	172	parallel
Strand 6	D	200	205	parallel
Strand 7	D	267	273	parallel
Strand 8	D	374	381	anti-parallel
Strand 9	D	312	320	anti-parallel
Strand 10	D	351	356	parallel

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There are 2 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	53	55	first strand
Strand 2	D	61	63	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: 4X1I

Analysis of interatomic Contacts of Structural Units in PDB entry:
4X1I