Annotating tertiary motifs in RNA structures

1ET4 - vitamin B(12) RNA aptamer

Statistics of tertiary motifs

Annotated diagram (PDF, EPS)

Structure information of tertiary motifs

• Coaxial helix

ID	Strand 1		Strand 2
	Seq num	Chain	Seq num	Chain
1	107-109,112-113	E	120-122,132-133	E
2	207-209,212-213	A	220-222,232-233	A
3	307-309,312-313	B	320-322,332-333	B
4	407-409,412-413	C	420-422,432-433	C
5	507-509,512-513	D	520-522,532-533	D



• A-minor

ID	Residue 1			Residue 2			Residue 3
	Seq	Seq num	Chain	Seq	Seq num	Chain	Seq	Seq num	Chain
1	A	125	E	G	108	E	C	121	E
2	A	225	A	G	208	A	C	221	A
3	A	325	B	G	308	B	C	321	B
4	A	425	C	G	408	C	C	421	C
5	A	525	D	G	508	D	C	521	D



• Ribose zipper

ID	Strand 1			Strand 2
	Seq	Seq num	Chain	Seq	Seq num	Chain
1	5′-AA-3′	534,535	D	5′-AA-3′	434,435	C
2	5′-AA-3′	234,235	A	5′-AA-3′	334,335	B



• Pseudoknot

ID	Seq num	Chain
1	107-109,112-113,120-122,132-133	E
2	207-209,212-213,220-222,232-233	A
3	307-309,312-313,320-322,332-333	B
4	407-409,412-413,420-422,432-433	C
5	507-509,512-513,520-522,532-533	D