7-Methylguanine

2-Amino-1,7-dihydroxy-7-methyl-6H-purine-6-one

Formula: C6H7N5O (165.0651)
Chinese Name: 7-甲基鸟嘌呤
BioDeep ID: BioDeep_00000002254 ( View LC/MS Profile)
SMILES: NC(N1)=Nc(n2)c(n(C)c2)C(=O)1



Found 27 Sample Hits

m/z Adducts Species Organ Scanning Sample
165.0913 [M-H2O+NH4]+
PPM:18.1		 Marker Pen NA DESI (None)
3ul_0.8Mpa_RAW_20241016-PAPER PNMK - MEMI_test
Resolution: 30μm, 315x42

Description

By writing the four English letters “PNMK” on white paper with a marker pen, and then scanning with a DESI ion source to obtain the scanning result. The signal of the chemical substances on the marker pen used appears on the channel with an m/z value of 322.1918, 323.1953, 546.4010, and etc, from the single cell deconvolution sampling layer class_4. This test data was tested by chuxiaoping from PANOMIX’s R&D laboratory.
183.1018 [M+NH4]+
PPM:15.9		 Marker Pen NA DESI (None)
3ul_0.8Mpa_RAW_20241016-PAPER PNMK - MEMI_test
Resolution: 30μm, 315x42

Description

By writing the four English letters “PNMK” on white paper with a marker pen, and then scanning with a DESI ion source to obtain the scanning result. The signal of the chemical substances on the marker pen used appears on the channel with an m/z value of 322.1918, 323.1953, 546.4010, and etc, from the single cell deconvolution sampling layer class_4. This test data was tested by chuxiaoping from PANOMIX’s R&D laboratory.
204.1597 [M+K]+
PPM:15.2		 Marker Pen NA DESI (None)
3ul_0.8Mpa_RAW_20241016-PAPER PNMK - MEMI_test
Resolution: 30μm, 315x42

Description

By writing the four English letters “PNMK” on white paper with a marker pen, and then scanning with a DESI ion source to obtain the scanning result. The signal of the chemical substances on the marker pen used appears on the channel with an m/z value of 322.1918, 323.1953, 546.4010, and etc, from the single cell deconvolution sampling layer class_4. This test data was tested by chuxiaoping from PANOMIX’s R&D laboratory.
165.0916 [M-H2O+NH4]+
PPM:19.9		 Homo sapiens esophagus DESI ()
LNTO22_1_3 - MTBLS385
Resolution: 75μm, 121x68

Description

183.1023 [M+NH4]+
PPM:18.7		 Homo sapiens esophagus DESI ()
LNTO22_1_3 - MTBLS385
Resolution: 75μm, 121x68

Description

166.074 [M+H]+
PPM:10		 Homo sapiens esophagus DESI ()
LNTO22_1_4 - MTBLS385
Resolution: 17μm, 82x80

Description

165.0913 [M-H2O+NH4]+
PPM:18.1		 Homo sapiens esophagus DESI ()
LNTO29_16_2 - MTBLS385
Resolution: 17μm, 95x101

Description

183.102 [M+NH4]+
PPM:17		 Homo sapiens esophagus DESI ()
LNTO29_16_2 - MTBLS385
Resolution: 17μm, 95x101

Description

183.1003 [M+NH4]+
PPM:7.7		 Homo sapiens esophagus DESI ()
LNTO22_1_9 - MTBLS385
Resolution: 75μm, 89x74

Description

165.0911 [M-H2O+NH4]+
PPM:16.9		 Homo sapiens esophagus DESI ()
LNTO29_16_3 - MTBLS385
Resolution: 17μm, 108x107

Description

183.1019 [M+NH4]+
PPM:16.5		 Homo sapiens esophagus DESI ()
LNTO29_16_3 - MTBLS385
Resolution: 17μm, 108x107

Description

183.1024 [M+NH4]+
PPM:19.2		 Homo sapiens esophagus DESI ()
LNTO26_7_2 - MTBLS385
Resolution: 17μm, 135x101

Description

183.1023 [M+NH4]+
PPM:18.7		 Homo sapiens esophagus DESI ()
LNTO26_7_3 - MTBLS385
Resolution: 75μm, 82x88

Description

165.0915 [M-H2O+NH4]+
PPM:19.3		 Homo sapiens esophagus DESI ()
TO31T - MTBLS385
Resolution: 75μm, 56x54

Description

165.0914 [M-H2O+NH4]+
PPM:18.7		 Homo sapiens esophagus DESI ()
TO29T - MTBLS385
Resolution: 75μm, 56x48

Description

183.1023 [M+NH4]+
PPM:18.7		 Homo sapiens esophagus DESI ()
LNTO22_1_5 - MTBLS385
Resolution: 75μm, 135x94

Description

165.0916 [M-H2O+NH4]+
PPM:19.9		 Homo sapiens esophagus DESI ()
LNTO22_1_7 - MTBLS385
Resolution: 75μm, 69x54

Description

183.1007 [M+NH4]+
PPM:9.9		 Homo sapiens esophagus DESI ()
LNTO22_1_7 - MTBLS385
Resolution: 75μm, 69x54

Description

165.0915 [M-H2O+NH4]+
PPM:19.3		 Homo sapiens esophagus DESI ()
LNTO22_1_8 - MTBLS385
Resolution: 75μm, 69x61

Description

183.1023 [M+NH4]+
PPM:18.7		 Homo sapiens esophagus DESI ()
LNTO22_1_8 - MTBLS385
Resolution: 75μm, 69x61

Description

183.1023 [M+NH4]+
PPM:18.7		 Homo sapiens esophagus DESI ()
LNTO22_2_1 - MTBLS385
Resolution: 75μm, 89x88

Description

165.0916 [M-H2O+NH4]+
PPM:19.9		 Homo sapiens esophagus DESI ()
LNTO22_2_2 - MTBLS385
Resolution: 75μm, 135x94

Description

183.1025 [M+NH4]+
PPM:19.8		 Homo sapiens esophagus DESI ()
LNTO22_2_2 - MTBLS385
Resolution: 75μm, 135x94

Description

165.0909 [M-H2O+NH4]+
PPM:15.6		 Homo sapiens esophagus DESI ()
LNTO26_16_1 - MTBLS385
Resolution: 75μm, 95x88

Description

183.1023 [M+NH4]+
PPM:18.7		 Homo sapiens esophagus DESI ()
LNTO26_16_1 - MTBLS385
Resolution: 75μm, 95x88

Description

165.091 [M-H2O+NH4]+
PPM:16.2		 Homo sapiens esophagus DESI ()
LNTO29_18_2 - MTBLS385
Resolution: 75μm, 62x68

Description

183.1021 [M+NH4]+
PPM:17.6		 Homo sapiens esophagus DESI ()
LNTO29_18_2 - MTBLS385
Resolution: 75μm, 62x68

Description


7-Methylguanine is a metabolite of DNA methylation and depurination observed in normal human biofluids; however, it has been found significantly higher in the urine of smokers than in nonsmokers. (PMID 16059882). 7-Methylguanine has been identified in the human placenta (PMID: 32033212). 7-Methylguanine is a metabolite of DNA methylation and depurination observed in normal human biofluids; however, it has been found significantly higher in the urine of smokers than in nonsmokers. (PMID 16059882) [HMDB] KEIO_ID M043