SMTL ID : 9cdw.2 (1 other biounit)

Crystal structure of HP1alpha chromoshadow domain in complex with KAP1 peptide

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.40 Å

Oligo State

homo-dimer

Ligands

1 x VAL- PRO- ARG- VAL- SER- LEU: Transcription intermediary factor 1-beta peptide(Non-covalent)

VAL-PRO-ARG-VAL-SER-LEU.1: 5 residues within 4Å: Chain A: Y.58, R.61, L.62, T.63, W.64 9 PLIP interactions: 9 interactions with chain A Hydrophobic interactions: A:R.61, A:L.62, A:T.63, A:W.64, A:W.64 Hydrogen bonds: A:R.61, A:T.63, A:T.63, A:T.63

2 x PGE: TRIETHYLENE GLYCOL(Non-functional Binders)

PGE.2: 7 residues within 4Å: Chain A: A.19, T.20, S.22, C.23 Chain B: A.19, T.20, S.22 3 PLIP interactions: 1 interactions with chain A, 2 interactions with chain B Hydrogen bonds: A:S.22, B:T.20, B:S.22 PGE.3: 7 residues within 4Å: Chain B: N.1, D.2, I.3, A.4, C.23, M.27, L.42 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:I.3, B:A.4, B:C.23

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Gaurav, N. et al., The HP1 box of KAP1 organizes HP1 alpha for silencing of endogenous retroviral elements in embryonic stem cells. Nat Commun (2025)

Release Date

2025-06-11

Peptides

Chromobox protein homolog 5: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
D

Chromobox protein homolog 5

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