1ET1: Human parathyroid hormone 1-34

Crystal structure of human parathyroid hormone 1-34 at 0.9 a resolution. Determined by X-ray diffraction at 0.9 Å resolution. Released 6 Sept 2000.

Method: X-ray diffraction
Resolution: 0.9 Å
Organism: Homo sapiens
Chains: 2
Atoms: 764
Mol. weight: 8.3 kDa
Released: 6 Sept 2000

Explore 1ET1 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1ET1 contains 2 α-helices and 0 β-strands across 2 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chains A and B: 1 helix, 0 β-strands

Element	Residues	Length	Sheet
α-helix	3-33	31

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Parathyroid hormone	A, B	protein	34	Homo sapiens	P01270 (AlphaFold model)

Sequence of entity 1 (A, B), FASTA

>1ET1_1 PARATHYROID HORMONE (chains A, B)
SVSEIQLMHNLGKHLNSMERVEWLRKKLQDVHNF

Primary citation

Crystal structure of human parathyroid hormone 1-34 at 0.9-A resolution. Jin, L., Briggs, S.L., Chandrasekhar, S. et al. J Biol Chem (2000) 275:27238-27244. PubMed

Other PDB entries of the same protein (UniProt P01270 (AlphaFold model), which also has an AlphaFold model), best resolution first:

3C4M 1.95 Å, Structure of human parathyroid hormone in complex with the extracellular domain of its…
8T5F 1.99 Å, De novo design of high-affinity protein binders to bioactive helical peptides
8FLQ 2.55 Å, Human PTH1R in complex with PTH(1-34) and Gs
8HA0 2.62 Å, Molecular recognition of two endogenous hormones by the human parathyroid hormone…
7VVL 2.8 Å, PTH-bound human PTH1R in complex with Gs (class2)
7Y36 2.8 Å, Cryo-EM structure of the Teriparatide-bound human PTH1R-Gs complex
9JR2 2.8 Å, Cryo-EM structure of PTH-PTH1R-Gq (upright state)
9JR3 2.8 Å, Cryo-EM structure of PTH-PTH1R-Gq (tilted state)
7VVM 3.2 Å, PTH-bound human PTH1R in complex with Gs (class3)
7VVK 3.3 Å, PTH-bound human PTH1R in complex with Gs (class1)
8HAO 3.76 Å, Human parathyroid hormone receptor-1 dimer
7VVN 3.8 Å, PTH-bound human PTH1R in complex with Gs (class4)

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