O2 – oxygen

Name
WID	O2
Name	oxygen
Traditional name	oxygen
IUPAC name	oxidanone
Cross references	ChEBI: 15379, PubChem: 3309, CAS: 7782-44-7, ThreeDMET: B00001, KEGG: C00007, ... 2 moreBiGG: o2, PDBCCD: OXY

Classification
Type	gas

Structure
Empirical formula (pH 7.5)	O₂
SMILES (pH 7.5)	O=O
Charge (pH 7.5)	0
Is hydrophobic	False
Molecular weight (Da)	32.00
van der Waals volume (pH 7.5; Å³ molecule^‑1)	22.41
Δ_fG^'o (pH 7.5, 25C, I = 0; kJ mol^‑1)	16.40
logP	-0.280
logD (pH 7.5)	-0.280

Concentrations
Media composition (SP4; mM)	0.273011 (diffused)

Function
Complex subunit	oxidized ribonucleoside-diphosphate reductase [c]: MG_229_231_TETRAMER + O2 ⇒ (4) H + MG_229_231_TETRAMER_ox
Reaction participant	ribonucleoside-diphosphate reductase (CDP) [c]: (2) CDP + MG_229_231_TETRAMER + O2 ⇒ (2) DCDP + (2) H2O + MG_229_231_TETRAMER_ox oxygen transport O2[e] ⇔ O2[c] Molybdenum reductase [c]: MOBD ⇒ MO + (2) O2 protoporphyrinogen oxidase (aerobic) [c]: (3) O2 + PPHG ⇒ (3) H2O2 + PPIX ribonucleoside-diphosphate reductase (ADP) [c]: (2) ADP + MG_229_231_TETRAMER + O2 ⇒ (2) DADP + (2) H2O + MG_229_231_TETRAMER_ox ... 3 more ribonucleoside-diphosphate reductase (GDP) [c]: (2) GDP + MG_229_231_TETRAMER + O2 ⇒ (2) DGDP + (2) H2O + MG_229_231_TETRAMER_ox NADH dehydrogenase [c]: H + NADH + O2 ⇒ H2O2 + NAD ribonucleoside-diphosphate reductase (UDP) [c]: MG_229_231_TETRAMER + O2 + (2) UDP ⇒ (2) DUDP + (2) H2O + MG_229_231_TETRAMER_ox

Metadata
Created	2012-10-01 15:07:04
Last updated	2012-10-01 15:12:24