Analysis of interatomic Contacts of Structural Units in PDB entry:
1HT1

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 1HT1 entry

There are 12 chains in PDB entry 1HT1 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
C	THR 1	LYS 174
D	THR 1	LYS 174
V	THR 1	LYS 174
X	THR 1	LYS 174
A	THR 1	LYS 174
B	THR 1	LYS 174
Z	THR 1	LYS 174
Y	THR 1	LYS 174
E	HIS 1	LEU 443
F	HIS 1	LEU 443
G	HIS 1	LEU 443
I	HIS 1	LEU 443

There are144 helices in PDB entry 1HT1. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	C	51	67	Right-handed alpha
Helix 2	2	C	70	85	Right-handed alpha
Helix 3	3	C	85	90	Right-handed alpha
Helix 4	4	C	125	140	Right-handed alpha
Helix 5	5	C	143	159	Right-handed alpha
Helix 6	6	D	49	67	Right-handed alpha
Helix 7	7	D	70	76	Right-handed alpha
Helix 8	8	D	77	85	Right-handed alpha
Helix 9	9	D	87	91	Right-handed 310
Helix 10	10	D	125	140	Right-handed alpha
Helix 11	11	D	143	159	Right-handed alpha
Helix 12	12	V	49	67	Right-handed alpha
Helix 13	13	V	70	85	Right-handed alpha
Helix 14	14	V	85	90	Right-handed alpha
Helix 15	15	V	125	140	Right-handed alpha
Helix 16	16	V	143	159	Right-handed alpha
Helix 17	17	X	49	65	Right-handed alpha
Helix 18	18	X	70	85	Right-handed alpha
Helix 19	19	X	125	138	Right-handed alpha
Helix 20	20	X	143	159	Right-handed alpha
Helix 21	21	A	49	67	Right-handed alpha
Helix 22	22	A	70	85	Right-handed alpha
Helix 23	23	A	87	91	Right-handed 310
Helix 24	24	A	125	138	Right-handed alpha
Helix 25	25	A	143	159	Right-handed alpha
Helix 26	26	B	49	66	Right-handed alpha
Helix 27	27	B	70	85	Right-handed alpha
Helix 28	28	B	85	90	Right-handed alpha
Helix 29	29	B	125	140	Right-handed alpha
Helix 30	30	B	143	159	Right-handed alpha
Helix 31	31	Z	49	66	Right-handed alpha
Helix 32	32	Z	70	85	Right-handed alpha
Helix 33	33	Z	87	91	Right-handed 310
Helix 34	34	Z	125	138	Right-handed alpha
Helix 35	35	Z	143	159	Right-handed alpha
Helix 36	36	Y	49	66	Right-handed alpha
Helix 37	37	Y	70	82	Right-handed alpha
Helix 38	38	Y	85	91	Right-handed alpha
Helix 39	39	Y	125	140	Right-handed alpha
Helix 40	40	Y	143	159	Right-handed alpha
Helix 41	41	E	5	15	Right-handed alpha
Helix 42	42	E	20	39	Right-handed alpha
Helix 43	43	E	41	48	Right-handed alpha
Helix 44	44	E	62	72	Right-handed alpha
Helix 45	45	E	84	87	Right-handed 310
Helix 46	46	E	88	93	Right-handed alpha
Helix 47	47	E	97	112	Right-handed alpha
Helix 48	48	E	114	119	Right-handed alpha
Helix 49	49	E	125	133	Right-handed alpha
Helix 50	50	E	154	162	Right-handed alpha
Helix 51	51	E	217	232	Right-handed alpha
Helix 52	52	E	235	251	Right-handed alpha
Helix 53	53	E	257	262	Right-handed 310
Helix 54	54	E	268	287	Right-handed alpha
Helix 55	55	E	314	318	Right-handed 310
Helix 56	56	E	319	326	Right-handed alpha
Helix 57	57	E	336	346	Right-handed alpha
Helix 58	58	E	350	361	Right-handed alpha
Helix 59	59	E	369	387	Right-handed alpha
Helix 60	60	E	392	410	Right-handed alpha
Helix 61	61	E	411	414	Right-handed 310
Helix 62	62	E	421	430	Right-handed alpha
Helix 63	63	E	429	435	Right-handed alpha
Helix 64	64	E	435	443	Right-handed alpha
Helix 65	65	F	5	15	Right-handed alpha
Helix 66	66	F	20	39	Right-handed alpha
Helix 67	67	F	41	48	Right-handed alpha
Helix 68	68	F	62	74	Right-handed alpha
Helix 69	69	F	84	87	Right-handed 310
Helix 70	70	F	96	106	Right-handed alpha
Helix 71	71	F	107	112	Right-handed alpha
Helix 72	72	F	113	116	Right-handed 310
Helix 73	73	F	117	121	Right-handed 310
Helix 74	74	F	128	134	Right-handed alpha
Helix 75	75	F	154	162	Right-handed alpha
Helix 76	76	F	163	165	Right-handed 310
Helix 77	77	F	217	222	Right-handed alpha
Helix 78	78	F	222	227	Right-handed alpha
Helix 79	79	F	238	251	Right-handed alpha
Helix 80	80	F	257	262	Right-handed 310
Helix 81	81	F	268	287	Right-handed alpha
Helix 82	82	F	300	302	Right-handed 310
Helix 83	83	F	314	318	Right-handed 310
Helix 84	84	F	319	325	Right-handed alpha
Helix 85	85	F	336	346	Right-handed alpha
Helix 86	86	F	350	362	Right-handed alpha
Helix 87	87	F	369	387	Right-handed alpha
Helix 88	88	F	392	410	Right-handed alpha
Helix 89	89	F	411	413	Right-handed 310
Helix 90	90	F	421	430	Right-handed alpha
Helix 91	91	F	429	435	Right-handed alpha
Helix 92	92	F	435	443	Right-handed alpha
Helix 93	93	G	5	15	Right-handed alpha
Helix 94	94	G	20	39	Right-handed alpha
Helix 95	95	G	43	48	Right-handed alpha
Helix 96	96	G	62	72	Right-handed alpha
Helix 97	97	G	84	87	Right-handed 310
Helix 98	98	G	88	93	Right-handed alpha
Helix 99	99	G	97	107	Right-handed alpha
Helix 100	100	G	107	114	Right-handed alpha
Helix 101	101	G	114	119	Right-handed alpha
Helix 102	102	G	127	133	Right-handed alpha
Helix 103	103	G	154	163	Right-handed alpha
Helix 104	104	G	217	232	Right-handed alpha
Helix 105	105	G	235	251	Right-handed alpha
Helix 106	106	G	257	262	Right-handed 310
Helix 107	107	G	268	287	Right-handed alpha
Helix 108	108	G	314	318	Right-handed 310
Helix 109	109	G	319	325	Right-handed alpha
Helix 110	110	G	336	346	Right-handed alpha
Helix 111	111	G	350	361	Right-handed alpha
Helix 112	112	G	369	387	Right-handed alpha
Helix 113	113	G	392	410	Right-handed alpha
Helix 114	114	G	411	414	Right-handed 310
Helix 115	115	G	421	430	Right-handed alpha
Helix 116	116	G	429	435	Right-handed alpha
Helix 117	117	G	435	443	Right-handed alpha
Helix 118	118	I	5	15	Right-handed alpha
Helix 119	119	I	20	39	Right-handed alpha
Helix 120	120	I	41	48	Right-handed alpha
Helix 121	121	I	62	74	Right-handed alpha
Helix 122	122	I	84	87	Right-handed 310
Helix 123	123	I	96	106	Right-handed alpha
Helix 124	124	I	107	112	Right-handed alpha
Helix 125	125	I	112	117	Right-handed alpha
Helix 126	126	I	118	121	Right-handed 310
Helix 127	127	I	128	136	Right-handed alpha
Helix 128	128	I	154	162	Right-handed alpha
Helix 129	129	I	163	165	Right-handed 310
Helix 130	130	I	222	229	Right-handed alpha
Helix 131	131	I	238	251	Right-handed alpha
Helix 132	132	I	257	262	Right-handed 310
Helix 133	133	I	268	287	Right-handed alpha
Helix 134	134	I	300	302	Right-handed 310
Helix 135	135	I	314	318	Right-handed 310
Helix 136	136	I	319	326	Right-handed alpha
Helix 137	137	I	336	346	Right-handed alpha
Helix 138	138	I	350	362	Right-handed alpha
Helix 139	139	I	369	387	Right-handed alpha
Helix 140	140	I	392	410	Right-handed alpha
Helix 141	141	I	411	413	Right-handed 310
Helix 142	142	I	421	430	Right-handed alpha
Helix 143	143	I	429	435	Right-handed alpha
Helix 144	144	I	435	443	Right-handed alpha

There are 39 sheets in PDB entry 1HT1. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM,

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	120	122	first strand
Strand 2	C	3	7	anti-parallel
Strand 3	C	12	16	anti-parallel
Strand 4	C	167	168	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	20	22	first strand
Strand 2	C	25	28	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	34	37	first strand
Strand 2	C	42	45	anti-parallel
Strand 3	C	96	98	anti-parallel
Strand 4	C	103	105	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	120	123	first strand
Strand 2	D	2	5	anti-parallel
Strand 3	D	11	16	anti-parallel
Strand 4	D	167	172	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	20	22	first strand
Strand 2	D	25	28	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	34	37	first strand
Strand 2	D	42	48	anti-parallel
Strand 3	D	93	98	anti-parallel
Strand 4	D	103	106	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	V	120	122	first strand
Strand 2	V	3	7	anti-parallel
Strand 3	V	12	16	anti-parallel
Strand 4	V	167	168	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	V	20	22	first strand
Strand 2	V	25	28	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	V	34	37	first strand
Strand 2	V	42	45	anti-parallel
Strand 3	V	96	98	anti-parallel
Strand 4	V	103	106	anti-parallel
Strand 5	V	112	113	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	X	120	123	first strand
Strand 2	X	2	5	anti-parallel
Strand 3	X	11	16	anti-parallel
Strand 4	X	167	172	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	X	20	22	first strand
Strand 2	X	25	28	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	X	34	37	first strand
Strand 2	X	42	48	anti-parallel
Strand 3	X	93	98	anti-parallel
Strand 4	X	103	106	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	167	172	first strand
Strand 2	A	11	16	anti-parallel
Strand 3	A	3	5	anti-parallel
Strand 4	A	120	122	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	167	172	first strand
Strand 2	A	11	16	anti-parallel
Strand 3	A	7	8	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	20	22	first strand
Strand 2	A	25	28	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	34	37	first strand
Strand 2	A	42	48	anti-parallel
Strand 3	A	93	98	anti-parallel
Strand 4	A	103	107	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	12	16	first strand
Strand 2	B	3	7	anti-parallel
Strand 3	B	120	122	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	20	22	first strand
Strand 2	B	25	28	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	34	37	first strand
Strand 2	B	42	48	anti-parallel
Strand 3	B	93	98	anti-parallel
Strand 4	B	103	107	anti-parallel
Strand 5	B	112	113	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Z	167	172	first strand
Strand 2	Z	11	16	anti-parallel
Strand 3	Z	3	5	anti-parallel
Strand 4	Z	120	122	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Z	167	172	first strand
Strand 2	Z	11	16	anti-parallel
Strand 3	Z	7	8	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Z	20	22	first strand
Strand 2	Z	25	28	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Z	34	37	first strand
Strand 2	Z	42	48	anti-parallel
Strand 3	Z	93	98	anti-parallel
Strand 4	Z	103	107	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Y	120	122	first strand
Strand 2	Y	3	7	anti-parallel
Strand 3	Y	12	16	anti-parallel
Strand 4	Y	167	169	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Y	20	22	first strand
Strand 2	Y	25	28	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Y	34	37	first strand
Strand 2	Y	42	48	anti-parallel
Strand 3	Y	93	98	anti-parallel
Strand 4	Y	103	107	anti-parallel
Strand 5	Y	112	113	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	78	82	first strand
Strand 2	E	252	256	parallel
Strand 3	E	303	308	parallel
Strand 4	E	53	56	parallel
Strand 5	E	328	331	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	289	292	first strand
Strand 2	E	295	298	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	365	368	first strand
Strand 2	E	417	420	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	78	82	first strand
Strand 2	F	252	256	parallel
Strand 3	F	303	308	parallel
Strand 4	F	53	56	parallel
Strand 5	F	328	331	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	171	172	first strand
Strand 2	F	215	216	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	289	292	first strand
Strand 2	F	295	298	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	365	368	first strand
Strand 2	F	417	420	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	78	82	first strand
Strand 2	G	252	256	parallel
Strand 3	G	303	308	parallel
Strand 4	G	53	56	parallel
Strand 5	G	328	331	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	289	292	first strand
Strand 2	G	295	298	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	365	368	first strand
Strand 2	G	417	420	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	78	82	first strand
Strand 2	I	252	256	parallel
Strand 3	I	303	308	parallel
Strand 4	I	53	56	parallel
Strand 5	I	328	331	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	289	292	first strand
Strand 2	I	295	298	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	365	368	first strand
Strand 2	I	417	420	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: 1HT1

Analysis of interatomic Contacts of Structural Units in PDB entry:
1HT1