IL_4PKD_001

3D structure

PDB id

4PKD (explore in PDB, NAKB, or RNA 3D Hub)

Description

U1-70k in complex with U1 snRNA stem-loops 1 and U1-A RRM in complex with stem-loop 2

Experimental method

X-RAY DIFFRACTION

Resolution

2.5 Å

Loop

Sequence

AUAC*GUU

Length

7 nucleotides

Bulged bases

4PKD|1|V|A|88

QA status

Valid loop

Sequence variability

If this chain is mapped to an Rfam alignment, the link below will give its sequence variability.

R3DSVS

Structural variability across Equivalence Class

The link below will give the loop's structural variability across the equivalence class for this chain.

R3DMCS EC

Structural variability across Rfam

If this chain is mapped to an Rfam alignment, the link below will give the loop's structural variability between chains mapped to the same Rfam family.

R3DMCS Rfam

Detailed Annotation

Isolated non-canonical cWW with bulges

Broad Annotation

Isolated non-canonical cWW with bulges

Motif group

IL_31091.1

Basepair signature

cWW-cWW-cWW

Number of instances in this motif group

13

Unit IDs

4PKD|1|V|A|86
4PKD|1|V|U|87
4PKD|1|V|A|88
4PKD|1|V|C|89
*
4PKD|1|V|G|106
4PKD|1|V|U|107
4PKD|1|V|U|108

Current chains

Chain V

U1 snRNA stem-loops 1 and 2 (55-MER)

Nearby chains

Chain B

U1 small nuclear ribonucleoprotein A,U1 small nuclear ribonucleoprotein 70 kDa