data_CMO
#
_chem_comp.id CMO
_chem_comp.name "CARBON MONOXIDE"
_chem_comp.type NON-POLYMER
_chem_comp.pdbx_type HETAIN
_chem_comp.formula "C O"
_chem_comp.mon_nstd_parent_comp_id ?
_chem_comp.pdbx_synonyms ?
_chem_comp.pdbx_formal_charge 0
_chem_comp.pdbx_initial_date 1999-07-08
_chem_comp.pdbx_modified_date 2011-06-04
_chem_comp.pdbx_ambiguous_flag N
_chem_comp.pdbx_release_status REL
_chem_comp.pdbx_replaced_by ?
_chem_comp.pdbx_replaces ?
_chem_comp.formula_weight 28.010
_chem_comp.one_letter_code ?
_chem_comp.three_letter_code CMO
_chem_comp.pdbx_model_coordinates_details ?
_chem_comp.pdbx_model_coordinates_missing_flag N
_chem_comp.pdbx_ideal_coordinates_details ?
_chem_comp.pdbx_ideal_coordinates_missing_flag N
_chem_comp.pdbx_model_coordinates_db_code 1BZR
_chem_comp.pdbx_subcomponent_list ?
_chem_comp.pdbx_processing_site EBI
#
loop_
_chem_comp_atom.comp_id
_chem_comp_atom.atom_id
_chem_comp_atom.alt_atom_id
_chem_comp_atom.type_symbol
_chem_comp_atom.charge
_chem_comp_atom.pdbx_align
_chem_comp_atom.pdbx_aromatic_flag
_chem_comp_atom.pdbx_leaving_atom_flag
_chem_comp_atom.pdbx_stereo_config
_chem_comp_atom.pdbx_backbone_atom_flag
_chem_comp_atom.pdbx_n_terminal_atom_flag
_chem_comp_atom.pdbx_c_terminal_atom_flag
_chem_comp_atom.model_Cartn_x
_chem_comp_atom.model_Cartn_y
_chem_comp_atom.model_Cartn_z
_chem_comp_atom.pdbx_model_Cartn_x_ideal
_chem_comp_atom.pdbx_model_Cartn_y_ideal
_chem_comp_atom.pdbx_model_Cartn_z_ideal
_chem_comp_atom.pdbx_component_atom_id
_chem_comp_atom.pdbx_component_comp_id
_chem_comp_atom.pdbx_ordinal
CMO C C C -1 1 N N N N N N -0.296 8.526 17.112 0.607 0.000 0.000 C CMO 1
CMO O O O 1 1 N N N N N N 0.023 7.997 18.053 -0.600 0.000 0.000 O CMO 2
#
_chem_comp_bond.comp_id CMO
_chem_comp_bond.atom_id_1 C
_chem_comp_bond.atom_id_2 O
_chem_comp_bond.value_order TRIP
_chem_comp_bond.pdbx_aromatic_flag N
_chem_comp_bond.pdbx_stereo_config N
_chem_comp_bond.pdbx_ordinal 1
#
loop_
_pdbx_chem_comp_descriptor.comp_id
_pdbx_chem_comp_descriptor.type
_pdbx_chem_comp_descriptor.program
_pdbx_chem_comp_descriptor.program_version
_pdbx_chem_comp_descriptor.descriptor
CMO SMILES ACDLabs 10.04 "[O+]#[C-]"
CMO SMILES_CANONICAL CACTVS 3.341 "[C-]#[O+]"
CMO SMILES CACTVS 3.341 "[C-]#[O+]"
CMO SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "[C-]#[O+]"
CMO SMILES "OpenEye OEToolkits" 1.5.0 "[C-]#[O+]"
CMO InChI InChI 1.03 InChI=1S/CO/c1-2
CMO InChIKey InChI 1.03 UGFAIRIUMAVXCW-UHFFFAOYSA-N
#
loop_
_pdbx_chem_comp_identifier.comp_id
_pdbx_chem_comp_identifier.type
_pdbx_chem_comp_identifier.program
_pdbx_chem_comp_identifier.program_version
_pdbx_chem_comp_identifier.identifier
CMO "SYSTEMATIC NAME" ACDLabs 10.04 "carbon monooxide"
CMO "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "carbon monoxide"
#
loop_
_pdbx_chem_comp_audit.comp_id
_pdbx_chem_comp_audit.action_type
_pdbx_chem_comp_audit.date
_pdbx_chem_comp_audit.processing_site
CMO 'Create component' 1999-07-08 EBI
CMO 'Modify descriptor' 2011-06-04 RCSB
#
_pdbe_chem_comp_drugbank_details.comp_id CMO
_pdbe_chem_comp_drugbank_details.drugbank_id DB11588
_pdbe_chem_comp_drugbank_details.type 'small molecule'
_pdbe_chem_comp_drugbank_details.name 'Carbon monoxide'
_pdbe_chem_comp_drugbank_details.description
"Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that has a slightly lower density than air. It is toxic to hemoglobin utilizing animals (including humans), when encountered in concentrations above about 35 ppm, although it is also formed in normal animal metabolism in low quantities, and is thought to have some normal biological/homeostatic functions [L2529]. Carbon monoxide (CO), is a ubiquitous environmental product of organic combustion, which is also formed endogenously in the human body, as the byproduct of heme metabolism [A32758]. Exhaled CO (eCO), similar to exhaled nitric oxide (eNO), has been evaluated as a candidate breath biomarker of pathophysiological states, including smoking status, and inflammatory diseases of the lung and other organs. Exhalation of corbon monoxide values have been studied as potential indicators of inflammation in asthma, stable COPD and exacerbations, cystic fibrosis, lung cancer, and during surgery or critical care [L2529].  A test of the diffusing capacity of the lungs for carbon monoxide (DLCO), is one of the most clinically valuable tests of lung function testing. The technique was first described  100 years ago, and applied to clinical practice many years after. The DLCO measures the ability of the lungs to transfer gas from inhaled air to the red blood cells in pulmonary capillaries. The DLCO test is both convenient and simple for the patient to undergo. The ten seconds of breath-holding required for the DLCO maneuver is easier for most patients to perform than the forced exhalation required for other respiratory tests [L2557].  Carbon monoxide is presently used in small amounts in low oxygen modified atmosphere packaging systems (MAP) for fresh meat to stabilize and maintain natural meat color. This use of CO has been generally recognized as safe (GRAS) in several packaging applications for fresh meat products. Since 2002, FDA has favorably reviewed three GRAS notifications for carbon monoxide use in fresh meat packaging [L2537]. The FDA classifies this drug as permitted as a food additive in the packaging and preparation of food products, while following the federal code of regulations [L2531].  There have been several concerns voiced of over the use of carbon monoxide in food products [L2537], [L2538], [L2539]. The European Union has banned the use of carbon monoxide as a color stabilizer in meat and fish. A December 2001 report from the European Commission's Scientific Committee on Food concluded that the gas did not pose a risk provided that food was maintained adequately cold during storage and transport to prevent the growth of microorganisms [L2538].  In New Zealand, the use of carbon monoxide in fish preparation has been banned, as it may mask the effects of food spoilage and bacterial growth [L2539]."
_pdbe_chem_comp_drugbank_details.cas_number 630-08-0
_pdbe_chem_comp_drugbank_details.mechanism_of_action
'In respiratory testing, the diffusing capacity for carbon monoxide (DLCO) is a measure of the ability of gas to transfer from the alveoli across the alveolar epithelium and the capillary endothelium to the red blood cells. The DLCO depends not only on the area and thickness of the blood-gas barrier but additionally on the volume of blood in the pulmonary capillaries. The distribution of alveolar volume and ventilation also has an impact on the measurement [L2558].  DLCO is measured by sampling end-expiratory gas for carbon monoxide (CO) after patients inspire a small and safe amount of exogenous CO, hold their breath, and exhale. Measured DLCO is adjusted for alveolar volume (which is estimated from dilution of helium) and the patient’s hematocrit level. DLCO is reported as mL/min/mm Hg and as a percentage of a predicted value [A32759].  Carbon monoxide exerts effects on cell metabolism through both hypoxic and non-hypoxic modes of action. Both mechanisms of action are thought to be the result of the ability of carbon monoxide to bind strongly to heme and alter the function and/or metabolism of heme proteins. The binding affinity of carbon monoxide for hemoglobin is more than 200 times greater than that of oxygen for hemoglobin. The formation of carboxyhemoglobin (COHb) decreases the O2 carrying capacity of blood and disrupts the release of O2 from Hb for its use in tissues. Through similar mechanisms, carbon monoxide diminishes the O2 storage in muscle cells by binding to and displacing O2 from, myoglobin. Though all human tissues are vulnerable to carbon monoxide-induced hypoxic injury, those with the highest O2 demand are especially vulnerable, including the brain and heart [L2550].  Most of the non-hypoxic mechanisms of action of carbon monoxide have been thought to be due to binding of carbon monoxide to heme in proteins other than Hb. The most notable targets of carbon monoxide include components of many important physiological regulatory systems, including brain and muscle oxygen storage and use(myoglobin, neuroglobin); nitric oxide cell signaling  (e.g., nitric oxide synthase, guanylyl cyclase); prostaglandin cell signaling (cyclooxygenase, prostaglandin H synthase); energy metabolism and mitochondrial respiration (cytochrome c oxidase, cytochrome c, NADPH oxidase); steroid and drug metabolism (cytochrome P450); cellular redox balance and reactive oxygen species (ROS; catalase, peroxidases); and numerous transcription factors (e.g., neuronal PAS domain protein, NPAS2, implicated in regulation of circadian rhythm) [L2550].  In meat processing, carbon monoxide reacts with myoglobin, to form carboxymyoglobin, imparting a red appearance to the meat [L2540].'
#
loop_
_pdbe_chem_comp_synonyms.comp_id
_pdbe_chem_comp_synonyms.name
_pdbe_chem_comp_synonyms.provenance
_pdbe_chem_comp_synonyms.type
CMO 'Carbon monoxide' DrugBank ?
CMO 'carbon(II) oxide' DrugBank ?
CMO 'Carboneum oxygenisatum' DrugBank ?
CMO CO DrugBank ?
#
_pdbe_chem_comp_drugbank_classification.comp_id CMO
_pdbe_chem_comp_drugbank_classification.drugbank_id DB11588
_pdbe_chem_comp_drugbank_classification.parent 'Homogeneous other non-metal compounds'
_pdbe_chem_comp_drugbank_classification.kingdom 'Inorganic compounds'
_pdbe_chem_comp_drugbank_classification.class 'Homogeneous other non-metal compounds'
_pdbe_chem_comp_drugbank_classification.superclass 'Homogeneous non-metal compounds'
_pdbe_chem_comp_drugbank_classification.description
"This compound belongs to the class of inorganic compounds known as homogeneous other non-metal compounds. These are inorganic non-metallic compounds in which the largest atom belongs to the class of 'other non-metals'."
#
_pdbe_chem_comp_drugbank_targets.comp_id CMO
_pdbe_chem_comp_drugbank_targets.drugbank_id DB11588
_pdbe_chem_comp_drugbank_targets.name Myoglobin
_pdbe_chem_comp_drugbank_targets.organism Humans
_pdbe_chem_comp_drugbank_targets.uniprot_id P02144
_pdbe_chem_comp_drugbank_targets.pharmacologically_active yes
_pdbe_chem_comp_drugbank_targets.ordinal 1
#
loop_
_software.name
_software.version
_software.description
rdkit 2023.03.3 'Core functionality.'
pdbeccdutils 0.8.4 'Wrapper to provide 2D templates and molecular fragments.'
#
loop_
_pdbe_chem_comp_atom_depiction.comp_id
_pdbe_chem_comp_atom_depiction.atom_id
_pdbe_chem_comp_atom_depiction.element
_pdbe_chem_comp_atom_depiction.model_Cartn_x
_pdbe_chem_comp_atom_depiction.model_Cartn_y
_pdbe_chem_comp_atom_depiction.pdbx_ordinal
CMO C C 3.000 0.000 1
CMO O O 4.500 0.000 2
#
_pdbe_chem_comp_bond_depiction.comp_id CMO
_pdbe_chem_comp_bond_depiction.atom_id_1 C
_pdbe_chem_comp_bond_depiction.atom_id_2 O
_pdbe_chem_comp_bond_depiction.value_order TRIPLE
_pdbe_chem_comp_bond_depiction.bond_dir NONE
_pdbe_chem_comp_bond_depiction.pdbx_ordinal 1
#
#
#
_pdbe_chem_comp_rdkit_properties.comp_id CMO
_pdbe_chem_comp_rdkit_properties.exactmw 27.995
_pdbe_chem_comp_rdkit_properties.amw 28.010
_pdbe_chem_comp_rdkit_properties.lipinskiHBA 1
_pdbe_chem_comp_rdkit_properties.lipinskiHBD 0
_pdbe_chem_comp_rdkit_properties.NumRotatableBonds 0
_pdbe_chem_comp_rdkit_properties.NumHBD 0
_pdbe_chem_comp_rdkit_properties.NumHBA 0
_pdbe_chem_comp_rdkit_properties.NumHeavyAtoms 2
_pdbe_chem_comp_rdkit_properties.NumAtoms 2
_pdbe_chem_comp_rdkit_properties.NumHeteroatoms 1
_pdbe_chem_comp_rdkit_properties.NumAmideBonds 0
_pdbe_chem_comp_rdkit_properties.FractionCSP3 0
_pdbe_chem_comp_rdkit_properties.NumRings 0
_pdbe_chem_comp_rdkit_properties.NumAromaticRings 0
_pdbe_chem_comp_rdkit_properties.NumAliphaticRings 0
_pdbe_chem_comp_rdkit_properties.NumSaturatedRings 0
_pdbe_chem_comp_rdkit_properties.NumHeterocycles 0
_pdbe_chem_comp_rdkit_properties.NumAromaticHeterocycles 0
_pdbe_chem_comp_rdkit_properties.NumSaturatedHeterocycles 0
_pdbe_chem_comp_rdkit_properties.NumAliphaticHeterocycles 0
_pdbe_chem_comp_rdkit_properties.NumSpiroAtoms 0
_pdbe_chem_comp_rdkit_properties.NumBridgeheadAtoms 0
_pdbe_chem_comp_rdkit_properties.NumAtomStereoCenters 0
_pdbe_chem_comp_rdkit_properties.NumUnspecifiedAtomStereoCenters 0
_pdbe_chem_comp_rdkit_properties.labuteASA 12.620
_pdbe_chem_comp_rdkit_properties.tpsa 19.900
_pdbe_chem_comp_rdkit_properties.CrippenClogP -0.038
_pdbe_chem_comp_rdkit_properties.CrippenMR 3.929
_pdbe_chem_comp_rdkit_properties.chi0v 0.908
_pdbe_chem_comp_rdkit_properties.chi1v 0.204
_pdbe_chem_comp_rdkit_properties.chi2v 0
_pdbe_chem_comp_rdkit_properties.chi3v 0
_pdbe_chem_comp_rdkit_properties.chi4v 0
_pdbe_chem_comp_rdkit_properties.chi0n 0.908
_pdbe_chem_comp_rdkit_properties.chi1n 0.204
_pdbe_chem_comp_rdkit_properties.chi2n 0
_pdbe_chem_comp_rdkit_properties.chi3n 0
_pdbe_chem_comp_rdkit_properties.chi4n 0
_pdbe_chem_comp_rdkit_properties.hallKierAlpha -0.260
_pdbe_chem_comp_rdkit_properties.kappa1 1.740
_pdbe_chem_comp_rdkit_properties.kappa2 0.740
_pdbe_chem_comp_rdkit_properties.kappa3 -6.106
_pdbe_chem_comp_rdkit_properties.Phi 0.644
#
loop_
_pdbe_chem_comp_external_mappings.comp_id
_pdbe_chem_comp_external_mappings.source
_pdbe_chem_comp_external_mappings.resource
_pdbe_chem_comp_external_mappings.resource_id
CMO UniChem ChEMBL CHEMBL1231840
CMO UniChem DrugBank DB11588
CMO UniChem PDBe CMO
CMO UniChem 'KEGG LIGAND' C00237
CMO UniChem ChEBI 17245
CMO UniChem eMolecules 3716409
CMO UniChem fdasrs 7U1EE4V452
CMO UniChem SureChEMBL SCHEMBL1110
CMO UniChem HMDB HMDB0001361
CMO UniChem 'PubChem TPHARMA' 15320958
CMO UniChem NMRShiftDB 60020796
CMO UniChem ACTor 153929-54-5
CMO UniChem Recon co
CMO UniChem Nikkaji J1.401.546I
CMO UniChem 'EPA CompTox Dashboard' DTXSID5027273
CMO UniChem MetaboLights MTBLC17245
CMO UniChem BRENDA 176
CMO UniChem BRENDA 3261
CMO UniChem Rhea 17245
CMO UniChem ChemicalBook CB1300110
CMO UniChem DailyMed 'CARBON MONOXIDE'
CMO UniChem ClinicalTrials 'CARBON MONOXIDE'
CMO UniChem rxnorm 'CARBON MONOXIDE'
CMO UniChem 'Probes And Drugs' PD039106
CMO UniChem PubChem 281
#
loop_
_pdbe_chem_comp_rdkit_conformer.comp_id
_pdbe_chem_comp_rdkit_conformer.atom_id
_pdbe_chem_comp_rdkit_conformer.Cartn_x_rdkit
_pdbe_chem_comp_rdkit_conformer.Cartn_y_rdkit
_pdbe_chem_comp_rdkit_conformer.Cartn_z_rdkit
_pdbe_chem_comp_rdkit_conformer.rdkit_method
_pdbe_chem_comp_rdkit_conformer.rdkit_ordinal
CMO C 0.564 0.000 0.000 ETKDGv3 1
CMO O -0.564 0.000 0.000 ETKDGv3 2
#