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. 2025 Feb 25;15:6824. doi: 10.1038/s41598-025-90833-3

Table 3.

The summary of observed glycopeptides from α-chain from luteinizing hormone (LH).

Site Observed m/z1 [M + H]+ Sequences2 Glycan structures
α-chain
N80 803.3323+ 2407.995 K.NITSESTC*C*VAK CoreHexNAc
871.0253+ 2611.076 K.NITSESTC*C*VAK CoreHexNAc2
925.0433+ 2773.129 K.NITSESTC*C*VAK CoreHexNAc2Hex
938.7183+ 2814.153 K.NITSESTC*C*VAK CoreHexNAc3
965.3713+ 2894.117 K.NITSESTC*C*VAK CoreHexNAc3 + sulfate
992.7383+ 2976.214 K.NITSESTC*C*VAK CoreHexNAc3Hex
1022.0743+ 3064.228 K.NITSESTC*C*VAK CoreHexNAc2HexNeuAc
1035.7473+ 3105.242 K.NITSESTC*C*VAK CoreHexNAc3NeuAc
1143.7863+ 3429.358 K.NITSESTC*C*VAK Core(HexNAcHex)2HexNAcNeuAc1
1203.1343+ 3607.401 K.NITSESTC*C*VAK Core(HexNAcHex)2NeuAc2
1240.8153+ 3720.445 K.NITSESTC*C*VAK Core(HexNAcHex)2HexNAcNeuAc2
N106 790.3465+ 3947.702 K.AFIRVTVMGNIKLENHTQC*YC*STC*.Y3 Man5
822.7575+ 4109.758 K.AFIRVTVMGNIKLENHTQC*YC*STC*.Y Man6
835.5306+ 5008.142 K.AFIRVTVMGNIKLENHTQC*YC*STC*YHHKI.- Man7
862.5376+ 5170.186 K.AFIRVTVMGNIKLENHTQC*YC*STC*YHHKI.- Man8
754.73685+ 3769.655 K.AFIRVTVMGNIKLENHTQC*YC*STC*.Y CoreFuc
795.3525+ 5144.964 K.AFIRVTVMGNIKLENHTQC*YC*STC*.Y CoreHexNacFuc
827.7645+ 4134.789 K.AFIRVTVMGNIKLENHTQC*YC*STC*.Y CoreHexNacHexFuc
835.9685+ 4175.809 K.AFIRVTVMGNIKLENHTQC*YC*STC*.Y CoreHexNac2Fuc
868.3805+ 4337.871 K.AFIRVTVMGNIKLENHTQC*YC*STC*.Y CoreHexNac2HexFuc
750.8266+ 4499.916 K.AFIRVTVMGNIKLENHTQC*YC*STC*.Y Core(HexNacHex)2Fuc
799.3436+ 4791.017 K.AFIRVTVMGNIKLENHTQC*YC*STC*.Y Core(HexNacHex)2FucNeuAc
1211.9754+ 4844.879 R.VTVMGNIKLENHTQC*YC*STC*YHHKI.- CoreHexNAc4 + sulfate
β-chain
N33 688.13735+ 3436.657 A.SRGPLRPLC*RPINATLAAEK.E4 Man5
900.43334+ 3598.712 A.SRGPLRPLC*RPINATLAAEK.E Man6
752.95915+ 3760.767 A.SRGPLRPLC*RPINATLAAEK.E Man7
785.3705+ 3922.820 A.SRGPLRPLC*RPINATLAAEK.E Man8
1021.9734+ 4084.869 A.SRGPLRPLC*RPINATLAAEK.E Man9
778.8944+ 3112.555 A.SRGPLRPLC*RPINATLAAEK.E Core
652.5285+ 3258.612 A.SRGPLRPLC*RPINATLAAEK.E CoreFuc
693.1445+ 3461.692 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNacFuc
725.5555+ 3623.743 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNacHexFuc
783.7735+ 3914.835 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNacHexFucNeuAc
733.7605+ 3664.773 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNac2Fuc
766.1705+ 3826.823 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNac2HexFuc
798.5835+ 3988.884 A.SRGPLRPLC*RPINATLAAEK.E Core(HexNacHex)2Fuc
856.7965+ 4279.980 A.SRGPLRPLC*RPINATLAAEK.E Core(HexNacHex)2FucNeuAc
915.01515+ 4571.076 A.SRGPLRPLC*RPINATLAAEK.E Core(HexNacHex)2FucNeuAc2
971.1924+ 3881.746 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNac3 + 2Sulfate
774.3765+ 3867.851 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNac3Fuc
987.7064+ 3947.803 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNac3Fuc-sulfate
832.5925+ 4158.933 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNac3FucNeuAc
806.7875+ 4029.905 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNac3HexFuc
839.1975+ 4191.955 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNac3Hex2Fuc
897.4155+ 4483.047 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNac3Hex2FucNeuAc
955.6335+ 4774.134 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNac3Hex2FucNeuAc2
847.4035+ 4232.984 A.SRGPLRPLC*RPINATLAAEK.E CoreHexNac4HexFuc

1Observed m/z from MS1 spectrum.

2C* represents carbamidomethylated cysteines.

3The MS/MS spectra matched the peptide with non-specific cleavage, meaning that C-terminal of α-chain was truncated.

4The MS/MS spectra matched the peptide starting from Serine due to the signal peptide.