
{| border="1" cellpadding="2" cellspacing="0" align="right" style="margin-left:1em" ! colspan="2" align=center bgcolor="#cccccc" | Adenine |- | IUPAC nomenclature | 9''H''-Purin-6-amine |- | Alternate name | 6-aminopurine |- | Chemical formula | C5H5N5 |- | Molecular mass | 135.13 g/mol |- | Melting point | 360 - 365 °C |- | CAS registry number | 73-24-5 |- | Simplified molecular input line entry specification | NC1=NC=NC2=C1N=CN2 |- | colspan="2" align="center" | |- |} Adenine is one of the two purine nucleobases used in forming nucleotides of the nucleic acids DNA and RNA. In DNA, adenine (A) binds to thymine (T) via two hydrogen bonds to assist in stabilizing the nucleic acid structures. In RNA, adenine binds to uracil (U). Adenine forms adenosine, a nucleoside, when attached to ribose, and deoxyadenosine when attached to deoxyribose, and it forms adenosine triphosphate (ATP), a nucleotide, when three phosphate groups are added to adenosine. Adenosine triphosphate is used in cellular metabolism as one of the basic methods of transferring chemical energy between reactions. In older literature, adenine was sometimes called Vitamin B4. However it is no longer considered a true vitamin (see Vitamin B). Purines Vitamins
This structure is incorrect. There should not be a double bond to the extracyclic amino group, but rather to the N in the ring (unless we want a bizarre resonance structure, but in that case we would need charges on the nitrogens). : User:Josh Cherry 21:39, 13 Oct 2003 (UTC) I've removed the structure because, as I pointed out eight months ago, it is incorrect. User:Josh Cherry 14:09, 27 Jun 2004 (UTC) :So, I assume that you'll be uploading a corrected image, real soon now? ;-) User:Lexor|User talk:Lexor 23:51, 27 Jun 2004 (UTC) : I agree with Josh. In my opinion, it is better to have no diagram than an incorrect diagram. User:Axl 18:58, 14 Dec 2004 (UTC) ---- Is this a real vitamin or not? I assume it's not: It's not listed on the vitamin page, and that page is quite explicit that there are only thirteen recognized (human) vitamins. But this page is also listed under category:vitamins. == Diagram/content == Well, the diagram is wrong. I dont know what the right one looks like, but this doesn't have H5. Also, I think it's important to include other common biological molecues that have Adenine in them. This includes, but is not limited to NAD, NADH... yeah. Can't think of anymore off the top of my head but it's a start. :What's wrong with the structure? You mean that it doesn't have five hydrogens? It does. Two of them are implicit, according to the well established conventions for drawing structures (each of the two carbon atoms that would otherwise form only three bonds has a hydrogen substituent that's not explicitly shown). :There are tons of biochemicals that contain an adenine moiety. I don't think we should show all of their structures here. User:Josh Cherry 01:19, 11 Feb 2005 (UTC) Wow, you're totally right. I don't know how I missed that, the structure is right. As to the adenine-containing biochemicals, I think it is important to at least mention some of these and link to sites about those chemicals. User:DavidMendoza 23:33, 20 Feb 2005 (UTC)
See other meanings of words starting from letter:
Words begining with Adenine:
Adenine
Adenine
Adenine
{| border="1" cellpadding="2" cellspacing="0" align="right" style="margin-left:1em" ! colspan="2" align=center bgcolor="#cccccc" | Adenine |- | IUPAC nomenclature | 9''H''-Purin-6-amine |- | Alternate name | 6-aminopurine |- | Chemical formula | C5H5N5 |- | Molecular mass | 135.13 g/mol |- | Melting point | 360 - 365 °C |- | CAS registry number | 73-24-5 |- | Simplified molecular input line entry specification | NC1=NC=NC2=C1N=CN2 |- | colspan="2" align="center" | |- |} Adenine is one of the two purine nucleobases used in forming nucleotides of the nucleic acids DNA and RNA. In DNA, adenine (A) binds to thymine (T) via two hydrogen bonds to assist in stabilizing the nucleic acid structures. In RNA, adenine binds to uracil (U). Adenine forms adenosine, a nucleoside, when attached to ribose, and deoxyadenosine when attached to deoxyribose, and it forms adenosine triphosphate (ATP), a nucleotide, when three phosphate groups are added to adenosine. Adenosine triphosphate is used in cellular metabolism as one of the basic methods of transferring chemical energy between reactions. In older literature, adenine was sometimes called Vitamin B4. However it is no longer considered a true vitamin (see Vitamin B). Purines Vitamins
Adenine
This structure is incorrect. There should not be a double bond to the extracyclic amino group, but rather to the N in the ring (unless we want a bizarre resonance structure, but in that case we would need charges on the nitrogens). : User:Josh Cherry 21:39, 13 Oct 2003 (UTC) I've removed the structure because, as I pointed out eight months ago, it is incorrect. User:Josh Cherry 14:09, 27 Jun 2004 (UTC) :So, I assume that you'll be uploading a corrected image, real soon now? ;-) User:Lexor|User talk:Lexor 23:51, 27 Jun 2004 (UTC) : I agree with Josh. In my opinion, it is better to have no diagram than an incorrect diagram. User:Axl 18:58, 14 Dec 2004 (UTC) ---- Is this a real vitamin or not? I assume it's not: It's not listed on the vitamin page, and that page is quite explicit that there are only thirteen recognized (human) vitamins. But this page is also listed under category:vitamins. == Diagram/content == Well, the diagram is wrong. I dont know what the right one looks like, but this doesn't have H5. Also, I think it's important to include other common biological molecues that have Adenine in them. This includes, but is not limited to NAD, NADH... yeah. Can't think of anymore off the top of my head but it's a start. :What's wrong with the structure? You mean that it doesn't have five hydrogens? It does. Two of them are implicit, according to the well established conventions for drawing structures (each of the two carbon atoms that would otherwise form only three bonds has a hydrogen substituent that's not explicitly shown). :There are tons of biochemicals that contain an adenine moiety. I don't think we should show all of their structures here. User:Josh Cherry 01:19, 11 Feb 2005 (UTC) Wow, you're totally right. I don't know how I missed that, the structure is right. As to the adenine-containing biochemicals, I think it is important to at least mention some of these and link to sites about those chemicals. User:DavidMendoza 23:33, 20 Feb 2005 (UTC)
See other meanings of words starting from letter:
A
AB | AC | AD | AE | AF | AG | AH | AI | AJ | AK | AL | AM | AN | AO | AP | AR | AS | AT | AU | AW | AX | AY | AZ |Words begining with Adenine:
Adenine
Adenine
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