Analysis of interatomic Contacts of Structural Units in PDB entry:
4X4T

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 4X4T entry

There are 5 chains in PDB entry 4X4T (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	MET 1	ASP 437
B	G 1	G 12
B	U 14	C 21
B	G 23	C 34
C	MET 1	VAL 100

There are 74 helices in PDB entry 4X4T. 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	13	Right-handed alpha
Helix 2	AA2	A	17	39	Right-handed alpha
Helix 3	AA3	A	46	50	Right-handed alpha
Helix 4	AA4	A	72	85	Right-handed alpha
Helix 5	AA5	A	125	141	Right-handed alpha
Helix 6	AA6	A	144	157	Right-handed alpha
Helix 7	AA7	A	171	183	Right-handed alpha
Helix 8	AA8	A	184	193	Right-handed alpha
Helix 9	AA9	A	231	248	Right-handed alpha
Helix 10	AB1	A	250	255	Right-handed 310
Helix 11	AB2	A	263	275	Right-handed alpha
Helix 12	AB3	A	289	311	Right-handed alpha
Helix 13	AB4	A	351	361	Right-handed alpha
Helix 14	AB5	A	384	396	Right-handed alpha
Helix 15	AB6	A	397	400	Right-handed 310
Helix 16	AB7	A	401	411	Right-handed alpha
Helix 17	AB8	A	417	421	Right-handed alpha
Helix 18	AB9	A	425	434	Right-handed alpha
Helix 19	AC1	C	2	13	Right-handed alpha
Helix 20	AC2	C	17	38	Right-handed alpha
Helix 21	AC3	C	46	50	Right-handed alpha
Helix 22	AC4	C	73	85	Right-handed alpha
Helix 23	AC5	C	129	138	Right-handed alpha
Helix 24	AC6	C	144	158	Right-handed alpha
Helix 25	AC7	C	171	183	Right-handed alpha
Helix 26	AC8	C	184	193	Right-handed alpha
Helix 27	AC9	C	231	248	Right-handed alpha
Helix 28	AD1	C	250	255	Right-handed 310
Helix 29	AD2	C	263	275	Right-handed alpha
Helix 30	AD3	C	289	311	Right-handed alpha
Helix 31	AD4	C	351	361	Right-handed alpha
Helix 32	AD5	C	384	396	Right-handed alpha
Helix 33	AD6	C	397	400	Right-handed 310
Helix 34	AD7	C	401	411	Right-handed alpha
Helix 35	AD8	C	418	423	Right-handed 310
Helix 36	AD9	C	425	434	Right-handed alpha
Helix 37	AE1	E	2	15	Right-handed alpha
Helix 38	AE2	E	17	37	Right-handed alpha
Helix 39	AE3	E	46	50	Right-handed alpha
Helix 40	AE4	E	71	87	Right-handed alpha
Helix 41	AE5	E	119	123	Right-handed 310
Helix 42	AE6	E	125	141	Right-handed alpha
Helix 43	AE7	E	144	158	Right-handed alpha
Helix 44	AE8	E	171	183	Right-handed alpha
Helix 45	AE9	E	184	193	Right-handed alpha
Helix 46	AF1	E	231	248	Right-handed alpha
Helix 47	AF2	E	250	255	Right-handed 310
Helix 48	AF3	E	263	275	Right-handed alpha
Helix 49	AF4	E	289	311	Right-handed alpha
Helix 50	AF5	E	351	361	Right-handed alpha
Helix 51	AF6	E	384	396	Right-handed alpha
Helix 52	AF7	E	397	400	Right-handed 310
Helix 53	AF8	E	401	411	Right-handed alpha
Helix 54	AF9	E	417	421	Right-handed alpha
Helix 55	AG1	E	425	434	Right-handed alpha
Helix 56	AG2	F	2	15	Right-handed alpha
Helix 57	AG3	F	17	38	Right-handed alpha
Helix 58	AG4	F	46	50	Right-handed alpha
Helix 59	AG5	F	71	87	Right-handed alpha
Helix 60	AG6	F	119	123	Right-handed 310
Helix 61	AG7	F	128	138	Right-handed alpha
Helix 62	AG8	F	144	158	Right-handed alpha
Helix 63	AG9	F	171	183	Right-handed alpha
Helix 64	AH1	F	184	193	Right-handed alpha
Helix 65	AH2	F	231	248	Right-handed alpha
Helix 66	AH3	F	250	255	Right-handed 310
Helix 67	AH4	F	263	275	Right-handed alpha
Helix 68	AH5	F	289	311	Right-handed alpha
Helix 69	AH6	F	351	361	Right-handed alpha
Helix 70	AH7	F	384	396	Right-handed alpha
Helix 71	AH8	F	397	400	Right-handed 310
Helix 72	AH9	F	401	411	Right-handed alpha
Helix 73	AI1	F	418	423	Right-handed 310
Helix 74	AI2	F	425	433	Right-handed alpha

There are 16 sheets in PDB entry 4X4T. 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,

There are 5 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	42	45	first strand
Strand 2	A	60	66	anti-parallel
Strand 3	A	107	115	parallel
Strand 4	A	99	104	anti-parallel
Strand 5	A	91	93	anti-parallel

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There are 4 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	207	210	first strand
Strand 2	A	199	202	anti-parallel
Strand 3	A	215	218	parallel
Strand 4	A	221	225	anti-parallel

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There are 4 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	315	322	first strand
Strand 2	A	326	333	anti-parallel
Strand 3	A	277	284	anti-parallel
Strand 4	A	413	416	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	A	341	348	first strand
Strand 2	A	373	379	anti-parallel
Strand 3	A	368	370	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	C	42	45	first strand
Strand 2	C	60	66	anti-parallel
Strand 3	C	107	115	parallel
Strand 4	C	98	104	anti-parallel
Strand 5	C	89	94	anti-parallel

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There are 4 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	207	210	first strand
Strand 2	C	199	202	anti-parallel
Strand 3	C	215	218	parallel
Strand 4	C	221	225	anti-parallel

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There are 4 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	315	322	first strand
Strand 2	C	326	333	anti-parallel
Strand 3	C	277	284	anti-parallel
Strand 4	C	413	416	anti-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	341	348	first strand
Strand 2	C	373	379	anti-parallel
Strand 3	C	368	370	anti-parallel

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There are 5 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	42	45	first strand
Strand 2	E	60	66	anti-parallel
Strand 3	E	107	115	parallel
Strand 4	E	98	104	anti-parallel
Strand 5	E	88	94	anti-parallel

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There are 4 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	207	210	first strand
Strand 2	E	199	202	anti-parallel
Strand 3	E	215	218	parallel
Strand 4	E	221	225	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	E	315	322	first strand
Strand 2	E	326	333	anti-parallel
Strand 3	E	277	284	anti-parallel
Strand 4	E	412	416	anti-parallel

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There are 3 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	341	348	first strand
Strand 2	E	373	379	anti-parallel
Strand 3	E	368	370	anti-parallel

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There are 5 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	42	45	first strand
Strand 2	F	59	66	anti-parallel
Strand 3	F	107	115	parallel
Strand 4	F	98	104	anti-parallel
Strand 5	F	89	94	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	F	207	210	first strand
Strand 2	F	199	202	anti-parallel
Strand 3	F	215	218	parallel
Strand 4	F	221	225	anti-parallel

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There are 4 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	315	322	first strand
Strand 2	F	326	333	anti-parallel
Strand 3	F	277	284	anti-parallel
Strand 4	F	413	416	anti-parallel

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There are 3 strands in AB7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	341	348	first strand
Strand 2	F	373	379	anti-parallel
Strand 3	F	368	370	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: 4X4T

Analysis of interatomic Contacts of Structural Units in PDB entry:
4X4T