Guanosin 5'-trifosfat-2'(3')-difosfat, en guaninnukleotid med fem fosfatgrupper. Tre fosfatgrupper är förestrade till sockerenheten i position 5', de två övriga i postion 2' eller 3'. Nukleotiden fungerar som budbärare som stänger av syntesen av ribosomalt RNA när det inte finns aminosyra tillgänglig för proteinsyntes.
Guanosine 5'-triphosphate 2'(3')-diphosphate. A guanine nucleotide containing five phosphate groups. Three phosphate groups are esterified to the sugar moiety in the 5' position and the other two in the 2' or 3' position. This nucleotide serves as a messenger to turn off the synthesis of ribosomal RNA when amino acids are not available for protein synthesis.
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Pentaphosphate, Guanosine — Bacterial Magic Spot pppGpp — (p)ppGpp — ppprGpp — Guanosine 3'-Diphosphate 5'-Triphosphate — 3'-Diphosphate 5'-Triphosphate, Guanosine — 5'-Triphosphate, Guanosine 3'-Diphosphate — Guanosine 3' Diphosphate 5' Triphosphate — Alarmone pppGpp — pppGpp, Alarmone — Alarmone