Browse history interactively

Page 1

Page 1Revision 1

Page 2

Page 2Revision 2

← Previous editContent deleted Content addedVisualWikitext

Revision as of 14:59, 2 December 2010 editCheMoBot (talk | contribs)Bots141,565 edits Updating {{chembox}} (no changed fields - added verified revid - updated 'UNII_Ref', 'ChemSpiderID_Ref', 'StdInChI_Ref', 'StdInChIKey_Ref') per Chem/Drugbox validation (report [[Wikipedia_talk:Wi← Previous edit		Latest revision as of 16:09, 13 November 2023 edit undo2409:40e5:1007:6c4f:b85b:efff:fe0a:8ed1 (talk)No edit summaryTags: Mobile edit Mobile web edit
(34 intermediate revisions by 21 users not shown)
Line 1:		Line 1:
	{{chembox		{{chembox
			| Verifiedfields = changed
	| verifiedrevid = 400129506		| verifiedrevid = 400131257
	| ImageFile = Beta-1,3-1,6-glucan.png		| ImageFile = Beta-1,3-1,6-glucan.png
	| ImageSize = 200px		| ImageSize = 200px
	| IUPACName =		| IUPACName =
	| OtherNames = Laminaran		| OtherNames = Laminaran
	| Section1 = {{Chembox Identifiers		|Section1={{Chembox Identifiers
	| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}		| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
	| ChemSpiderID = 388438		| ChemSpiderID = 388438
			| ChEBI_Ref = {{ebicite|changed|EBI}}
			| ChEBI = 6364
	| InChI = 1/C18H32O16/c19-1-4-7(22)10(25)11(26)17(31-4)34-15-9(24)6(3-21)32-18(13(15)28)33-14-8(23)5(2-20)30-16(29)12(14)27/h4-29H,1-3H2/t4-,5-,6-,7-,8-,9-,10+,11-,12-,13-,14+,15+,16?,17?,18?/m1/s1		| InChI = 1/C18H32O16/c19-1-4-7(22)10(25)11(26)17(31-4)34-15-9(24)6(3-21)32-18(13(15)28)33-14-8(23)5(2-20)30-16(29)12(14)27/h4-29H,1-3H2/t4-,5-,6-,7-,8-,9-,10+,11-,12-,13-,14+,15+,16?,17?,18?/m1/s1
	| InChIKey = DBTMGCOVALSLOR-VPNXCSTEBM		| InChIKey = DBTMGCOVALSLOR-VPNXCSTEBM
Line 14:		Line 17:
	| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}		| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
	| StdInChIKey = DBTMGCOVALSLOR-VPNXCSTESA-N		| StdInChIKey = DBTMGCOVALSLOR-VPNXCSTESA-N
			| CASNo_Ref = {{cascite|correct|CAS}}
	| CASNo = 9008-22-4		| CASNo = 9008-22-4
	| PubChem = 439306		| PubChem = 439306
	| SMILES = O(1(O)(OC(O)1O)CO)C3O((O)(OC2O(CO)(O)(O)2O)3O)CO		| SMILES = O(1(O)(OC(O)1O)CO)C3O((O)(OC2O(CO)(O)(O)2O)3O)CO
	| EINECS = 232-712-4}}		| EINECS = 232-712-4}}
	| Section2 = {{Chembox Properties		|Section2={{Chembox Properties
	| Formula = (C<sub>6</sub>H<sub>10</sub>O<sub>5</sub>)<sub>x</sub>		| Formula = (C<sub>6</sub>H<sub>10</sub>O<sub>5</sub>)<sub>x</sub>
	| MolarMass = Variable		| MolarMass = Variable
Line 26:		Line 30:
	| BoilingPt =		| BoilingPt =
	| Solubility = }}		| Solubility = }}
	| Section3 = {{Chembox Hazards		|Section3={{Chembox Hazards
	| MainHazards =		| MainHazards =
	| FlashPt =		| FlashPt =
	| Autoignition = }}		| AutoignitionPt = }}
	}}		}}
	The molecule '''laminarin''' (also known as '''laminaran''') is a storage ] (a ] of ]) found in ]. It is used as a carbohydrate food reserve in the same way that ] is used by ]. It is created by ] and is made up of β(1→3)-glucan with β(1→6)-linkages. It is a linear polysaccharide, with a β(1→3):β(1→6) ratio of 3:1.<ref>{{cite journal | author = Nisizawa K, Yamaguchi T, Handa N, Maeda M, Yamazaki H | year = 1963 | month = November | title = Chemical nature of a uronic acid-containing polysaccharide in the peritrophic membrane of the silkworm | journal = Journal of Biochemistry | volume = 54 | pages = 419–426 | publisher = Oxford University Press for Japanese Biochemical Society | location = Japan | issn = 0021-924X | pmid = 14089735 }}</ref>		The molecule '''laminarin''' (also known as '''laminaran''') is a storage ] (a ] of ]) found in ]. It is used as a carbohydrate food reserve in the same way that ] is used by ], especially in ].<ref>{{cite journal |vauthors=Beattie A, Hirst EL, Percival E |date=June 1961 | title = Studies on the metabolism of the Chrysophyceae | journal = Biochem. J. | volume = 79 |issue=3 | pages = 531–537 | location = England |doi=10.1042/bj0790531 | pmid = 13688276 | pmc=1205682}}</ref> It is created by ] and is made up of β(1→3)-glucan with β(1→6)-branches. It is a linear polysaccharide, with a β(1→3):β(1→6) ratio of 3:1.<ref>{{cite journal |vauthors = Nisizawa K, Yamaguchi T, Handa N, Maeda M, Yamazaki H |date=November 1963 | title = Chemical nature of a uronic acid-containing polysaccharide in the peritrophic membrane of the silkworm | journal = Journal of Biochemistry | volume = 54 |issue=5 | pages = 419–426 | publisher = Oxford University Press for Japanese Biochemical Society | location = Japan |doi=10.1093/oxfordjournals.jbchem.a127808 | issn = 0021-924X | pmid = 14089735 }}</ref> Its hydrolysis is catalyzed by enzymes such as ] (EC 3.2.1.6) that breaks the β(1→3) bonds.<ref>{{cite journal |vauthors=Salyers AA, Palmer JK, Wilkins TD |date=May 1977 | title = Laminarinase (beta-glucanase) activity in Bacteroides from the human colon. | journal = Appl Environ Microbiol| volume = 33 | pages = 1118–1124 | location = England | pmid = 879772 | pmc=170836 | issue=5|doi=10.1128/AEM.33.5.1118-1124.1977 |bibcode=1977ApEnM..33.1118S }}</ref> It has been suggested that the annual production of algae laminarin amounts to 12 ± 8 gigatons, i.e., about three times the annual atmospheric CO<sub>2</sub> increase by ] burning, that its concentration is driven by light variability and that it contributes substantially to the carbon export from surface waters, as it may account for up to half of organic carbon in sinking diatom-containing particles.<ref>{{cite journal | doi=10.1073/pnas.1917001117 | title=Laminarin is a major molecule in the marine carbon cycle | year=2020 | last1=Becker | first1=Stefan | last2=Tebben | first2=Jan | last3=Coffinet | first3=Sarah | last4=Wiltshire | first4=Karen | last5=Iversen | first5=Morten Hvitfeldt | last6=Harder | first6=Tilmann | last7=Hinrichs | first7=Kai-Uwe | last8=Hehemann | first8=Jan-Hendrik | journal=Proceedings of the National Academy of Sciences | volume=117 | issue=12 | pages=6599–6607 | pmid=32170018 | pmc=7104365 | bibcode=2020PNAS..117.6599B | doi-access=free }}</ref>
	==References==		==References==
Line 38:		Line 42:
	]		]
			]
	{{organic-compound-stub}}		{{organic-compound-stub}}
	]
	]
	]
	]
	]