Helixa
Glycine · 3D conformer · PubChem CID 750
A peptide is a short chain of amino acids. Scroll to build one.
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H₂O
Residue 1 of 9
Cysteine
- Code
- C · Cys
- Property
- Polar, uncharged
- Chain mass
- 121.2 Da
Two amino acids join. One water molecule leaves. That's a peptide bond.
Key
Hydrophobic
Polar
Positive
Negative
Being added
C_
Oxytocin
Chapter 03
Most peptides don't stay flat.
Insulin is 51 amino acids in two chains, held together by three sulphur bridges.
- 01 · Backbone trace
- 02 · Ribbon
- 03 · All atoms
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Chapter 04
Index
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#NameSequenceLengthMW (Da)FormulaRole
Helixa
Research-use peptides, by catalogue number.
Twelve compounds with prices and sizes. Every lot is tested by HPLC and mass spectrometry and ships with a batch certificate.
For laboratory research use only. Not for human or veterinary use.
Open the catalogue →Chapter 06
Sources & colophon
- Compound data
- PubChem. Formulae, masses, names, 2D structures, descriptions. Descriptions are credited to the source PubChem names. Public-domain NCBI data.
- Structures
- RCSB Protein Data Bank. Coordinates for 1MSO (human insulin) and 1GCN (glucagon). Data files are CC0.
- Sequences
- UniProt. Each sequence is checked against its precursor protein; the position is recorded. CC BY 4.0.
- Fetched
- —
- Type
- Switzer (Fontshare, free licence) and JetBrains Mono (SIL OFL).
- Code
- GSAP, Lenis, Three.js. Plain HTML, CSS and JavaScript, built with Vite.
- Gaps
- Glutathione and semaglutide have no UniProt entry, so their sequences are not UniProt-checked. A dash means a value could not be fetched.
- Note
- Glucagon's PDB entry 1GCN is porcine glucagon, which has the same sequence as human.
For education only. Not medical advice. Data from PubChem, RCSB PDB and UniProt, fetched —.