Atlas One · Host Biology · Scale 02 — Atomic

Chloride

Chloride (Cl⁻, atomic number 17) — plasma 103 mEq/L, principal extracellular anion. Drives GABA-A inhibition, gastric HCl, CFTR fluid secretion, and CO₂ transport (chloride shift/AE1). Mutations in CFTR, NKCC2, or NCC cause cystic fibrosis, Bartter, or Gitelman syndrome.

Also known as: Cl, Cl-, chloride ion, HCl, chlorine-35

Scale 02 — AtomicScale
draftStatus
2026-06-05Last Reviewed
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chloride

Chloride

Chloride (Cl⁻, atomic number 17) — plasma 103 mEq/L, principal extracellular anion. Drives GABA-A inhibition, gastric HCl, CFTR fluid secretion, and CO₂ transport (chloride shift/AE1). Mutations in CFTR, NKCC2, or NCC cause cystic fibrosis, Bartter, or Gitelman syndrome.