SMTL ID : 9n4k.1

CryoEM structure of ALK2-ActRIIB bound to BMP6

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

hetero-2-2-2-mer

Ligands

2 x NAG- NAG- BMA: beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose

NAG-NAG-BMA.1: 4 residues within 4Å: Chain A: W.45, N.47, I.52, H.97 No protein-ligand interaction detected (PLIP) NAG-NAG-BMA.2: 4 residues within 4Å: Chain D: W.45, N.47, I.52, H.97 No protein-ligand interaction detected (PLIP)

6 x NAG: 2-acetamido-2-deoxy-beta-D-glucopyranose(Post Translational Modification)(Non-functional Binders)

NAG.3: 4 residues within 4Å: Chain A: N.24, S.26, G.27, L.28 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:N.24 NAG.4: 6 residues within 4Å: Chain B: C.38, H.78, N.80, K.108, C.136 Ligands: NAG.5 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:H.78, B:K.108, B:C.136 NAG.5: 2 residues within 4Å: Ligands: NAG.4, BMA.6 No protein-ligand interaction detected (PLIP) NAG.7: 6 residues within 4Å: Chain C: C.38, H.78, N.80, K.108, C.136 Ligands: NAG.8 3 PLIP interactions: 3 interactions with chain C Hydrogen bonds: C:H.78, C:K.108, C:C.136 NAG.8: 2 residues within 4Å: Ligands: NAG.7, BMA.9 No protein-ligand interaction detected (PLIP) NAG.10: 4 residues within 4Å: Chain D: N.24, S.26, G.27, L.28 1 PLIP interactions: 1 interactions with chain D Hydrogen bonds: D:N.24

2 x BMA: beta-D-mannopyranose(Non-functional Binders)

BMA.6: 1 residues within 4Å: Ligands: NAG.5 No protein-ligand interaction detected (PLIP) BMA.9: 1 residues within 4Å: Ligands: NAG.8 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Goebel, E.J. et al., CryoEM structure of ALK2:BMP6 reveals distinct mechanism that allow ALK2 to interact with both BMP and activin ligands. Proc.Natl.Acad.Sci.USA (2025)

Release Date

2025-09-03

Peptides

Activin receptor type-2B: AD
Bone morphogenetic protein 6: BC
Activin receptor type-1: EF

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

D
F

B
B

C
E

E
C

F
D

Activin receptor type-2B

Bone morphogenetic protein 6

Activin receptor type-1

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