Vitamin B5

Pantotenska kiselina
Identifikacija
CAS registarski broj	79-83-4
PubChem	988
ChemSpider	963
DrugBank	DB01783
KEGG	C00864
ChEBI	7916
ChEMBL	CHEMBL1594
Jmol-3D slike	Slika 1
SMILES
	CC(C)(CO)C(O)C(=O)NCCC(O)=O
InChI
	InChI=1S/C9H17NO5/c1-9(2,5-11)7(14)8(15)10-4-3-6(12)13/h7,11,14H,3-5H2,1-2H3,(H,10,15)(H,12,13) ; Kod: GHOKWGTUZJEAQD-UHFFFAOYSA-N InChI=1S/C9H17NO5/c1-9(2,5-11)7(14)8(15)10-4-3-6(12)13/h7,11,14H,3-5H2,1-2H3,(H,10,15)(H,12,13)
Svojstva
Molekulska formula	C9H17NO5
Molarna masa	219.23 g mol−1
Tačka topljenja	195 °C
	(šta je ovo?) (verifikuj) ; Ukoliko nije drugačije napomenuto, podaci se odnose na standardno stanje (25 °C, 100 kPa) materijala
	Infobox references

Vitamin B5 ili pantotenska kiselina tradicionalno pripada skupini B-kompleksa, vitamina topljivih u vodi. Pri normalnoj prehrani kod čovjeka nije poznata hipovitaminoza jer je taj vitamin vrlo rasprostranjen u prirodi. Sastavni je dio koenzima A koji ima važnu ulogu u metabolizmu ugljikohidrata, masti i proteina.

Pantotenska se kiselina pojavljuje u vezanom i slobodnom obliku. U koenzimu A je vezana kao pantotenska kiselina dok je u acil - prijenosnom proteinu vezana kao pantotenol. Inače, ta je kiselina žuta uljasta tekućina koja je nestabilna i vrlo higroskopna te se lako topi u vodi. Zbog njezine nestabilnosti danas se isključivo dobiva sintetskim putem.

Pantotenska kiselina je vrlo rasprostranjena u prirodi (od tuda joj i naziv, panthos = svugdje prisutna). Bogati izvori tog vitamina su u mesu, mahunarkama, jajima, voću i povrću itd. Dnevne količine prema RDA nisu utvrđene, no obično se preporučuje dnevni unos od 4 - 7 mg za odrasle i 3 - 4 mg za adolescente.

Unosom u tijelo ova kiselina dolazi u sastav koenzima A te se tako može naći u svim organima. Tako je ona vrlo bitan čimbenik u izmjeni tvari i održanju tjelesne težine.

Hipovitaminoza je vrlo rijetka zbog velike prisutnosti u mnogim namirnicama. Ako ona i postoji, očituje se raznim neuromuskularnim poremećajima.

Pantotenska kiselina je organsko jedinjenje, koje sadrži 9 atoma ugljenika i ima molekulsku masu od 219,235 Da.^[6]^[7]^[8]

Osobine uredi

Osobina	Vrednost
Broj akceptora vodonika	5
Broj donora vodonika	4
Broj rotacionih veza	6
Particioni koeficijent^[9] (ALogP)	-1,1
Rastvorljivost^[10] (logS, log(mol/L))	-1,0
Polarna površina^[11] (PSA, Å²)	106,9

Reference uredi

↑ Li Q, Cheng T, Wang Y, Bryant SH (2010). „PubChem as a public resource for drug discovery.”. Drug Discov Today 15 (23-24): 1052-7. DOI:10.1016/j.drudis.2010.10.003. PMID 20970519. edit
↑ Evan E. Bolton, Yanli Wang, Paul A. Thiessen, Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry 4: 217-241. DOI:10.1016/S1574-1400(08)00012-1.
↑ Hettne KM, Williams AJ, van Mulligen EM, Kleinjans J, Tkachenko V, Kors JA. (2010). „Automatic vs. manual curation of a multi-source chemical dictionary: the impact on text mining”. J Cheminform 2 (1): 3. DOI:10.1186/1758-2946-2-3. PMID 20331846. edit
↑ Joanne Wixon, Douglas Kell (2000). „Website Review: The Kyoto Encyclopedia of Genes and Genomes — KEGG”. Yeast 17 (1): 48–55. DOI:10.1002/(SICI)1097-0061(200004)17:1<48::AID-YEA2>3.0.CO;2-H.
↑ Gaulton A, Bellis LJ, Bento AP, Chambers J, Davies M, Hersey A, Light Y, McGlinchey S, Michalovich D, Al-Lazikani B, Overington JP. (2012). „ChEMBL: a large-scale bioactivity database for drug discovery”. Nucleic Acids Res 40 (Database issue): D1100-7. DOI:10.1093/nar/gkr777. PMID 21948594. edit
↑ Trumbo, P. R. (2006). Pantothenic Acid. In Shils, M. E.; Shike, M.; Ross, A. C. et al.. Modern Nutrition in Health and Disease (10th ed.). Philadelphia, PA: Lippincott Williams & Wilkins. pp. 462-467. ISBN 0-7817-4133-5.
↑ Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS (2011). „DrugBank 3.0: a comprehensive resource for omics research on drugs”. Nucleic Acids Res. 39 (Database issue): D1035-41. DOI:10.1093/nar/gkq1126. PMC 3013709. PMID 21059682. edit
↑ David S. Wishart, Craig Knox, An Chi Guo, Dean Cheng, Savita Shrivastava, Dan Tzur, Bijaya Gautam, and Murtaza Hassanali (2008). „DrugBank: a knowledgebase for drugs, drug actions and drug targets”. Nucleic Acids Res 36 (Database issue): D901-6. DOI:10.1093/nar/gkm958. PMC 2238889. PMID 18048412. edit
↑ Ghose, A.K., Viswanadhan V.N., and Wendoloski, J.J. (1998). „Prediction of Hydrophobic (Lipophilic) Properties of Small Organic Molecules Using Fragment Methods: An Analysis of AlogP and CLogP Methods”. J. Phys. Chem. A 102: 3762-3772. DOI:10.1021/jp980230o.
↑ Tetko IV, Tanchuk VY, Kasheva TN, Villa AE. (2001). „Estimation of Aqueous Solubility of Chemical Compounds Using E-State Indices”. Chem Inf. Comput. Sci. 41: 1488-1493. DOI:10.1021/ci000392t. PMID 11749573. edit
↑ Ertl P., Rohde B., Selzer P. (2000). „Fast calculation of molecular polar surface area as a sum of fragment based contributions and its application to the prediction of drug transport properties”. J. Med. Chem. 43: 3714-3717. DOI:10.1021/jm000942e. PMID 11020286. edit

Literatura uredi

Clayden Jonathan, Nick Greeves, Stuart Warren, Peter Wothers (2001). Organic chemistry. Oxford, Oxfordshire: Oxford University Press. ISBN 0-19-850346-6.
Smith, Michael B.; March, Jerry (2007). Advanced Organic Chemistry: Reactions, Mechanisms, and Structure (6th izd.). New York: Wiley-Interscience. ISBN 0-471-72091-7.
Katritzky A.R., Pozharskii A.F. (2000). Handbook of Heterocyclic Chemistry. Academic Press. ISBN 0080429882.

Spoljašnje veze uredi

Portal Hemija

Pantothenic acid

[1] Li Q, Cheng T, Wang Y, Bryant SH (2010). „PubChem as a public resource for drug discovery.”. Drug Discov Today 15 (23-24): 1052-7. DOI:10.1016/j.drudis.2010.10.003. PMID 20970519. edit

[2] Evan E. Bolton, Yanli Wang, Paul A. Thiessen, Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry 4: 217-241. DOI:10.1016/S1574-1400(08)00012-1.

[3] Hettne KM, Williams AJ, van Mulligen EM, Kleinjans J, Tkachenko V, Kors JA. (2010). „Automatic vs. manual curation of a multi-source chemical dictionary: the impact on text mining”. J Cheminform 2 (1): 3. DOI:10.1186/1758-2946-2-3. PMID 20331846. edit

[4] Joanne Wixon, Douglas Kell (2000). „Website Review: The Kyoto Encyclopedia of Genes and Genomes — KEGG”. Yeast 17 (1): 48–55. DOI:10.1002/(SICI)1097-0061(200004)17:1<48::AID-YEA2>3.0.CO;2-H.

[5] Gaulton A, Bellis LJ, Bento AP, Chambers J, Davies M, Hersey A, Light Y, McGlinchey S, Michalovich D, Al-Lazikani B, Overington JP. (2012). „ChEMBL: a large-scale bioactivity database for drug discovery”. Nucleic Acids Res 40 (Database issue): D1100-7. DOI:10.1093/nar/gkr777. PMID 21948594. edit

[6] Trumbo, P. R. (2006). Pantothenic Acid. In Shils, M. E.; Shike, M.; Ross, A. C. et al.. Modern Nutrition in Health and Disease (10th ed.). Philadelphia, PA: Lippincott Williams & Wilkins. pp. 462-467. ISBN 0-7817-4133-5.

[7] Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS (2011). „DrugBank 3.0: a comprehensive resource for omics research on drugs”. Nucleic Acids Res. 39 (Database issue): D1035-41. DOI:10.1093/nar/gkq1126. PMC 3013709. PMID 21059682. edit

[8] David S. Wishart, Craig Knox, An Chi Guo, Dean Cheng, Savita Shrivastava, Dan Tzur, Bijaya Gautam, and Murtaza Hassanali (2008). „DrugBank: a knowledgebase for drugs, drug actions and drug targets”. Nucleic Acids Res 36 (Database issue): D901-6. DOI:10.1093/nar/gkm958. PMC 2238889. PMID 18048412. edit

[9] Ghose, A.K., Viswanadhan V.N., and Wendoloski, J.J. (1998). „Prediction of Hydrophobic (Lipophilic) Properties of Small Organic Molecules Using Fragment Methods: An Analysis of AlogP and CLogP Methods”. J. Phys. Chem. A 102: 3762-3772. DOI:10.1021/jp980230o.

[10] Tetko IV, Tanchuk VY, Kasheva TN, Villa AE. (2001). „Estimation of Aqueous Solubility of Chemical Compounds Using E-State Indices”. Chem Inf. Comput. Sci. 41: 1488-1493. DOI:10.1021/ci000392t. PMID 11749573. edit

[11] Ertl P., Rohde B., Selzer P. (2000). „Fast calculation of molecular polar surface area as a sum of fragment based contributions and its application to the prediction of drug transport properties”. J. Med. Chem. 43: 3714-3717. DOI:10.1021/jm000942e. PMID 11020286. edit

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