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Overview

Uniprot IDA0A287A6N0
Protein NamePolypeptide N-acetylgalactosaminyltransferase
Gene NameGALNT2
OrganismSus scrofa

Kla Sites from experimental identification

Position Flanking peptide
405 LRKKLSCKPFKWYLE
490 RAPGSLIKLQGCREN

Function

Catalyzes the initial reaction in O-linked oligosaccharide biosynthesis, the transfer of an N-acetyl-D-galactosamine residue to a serine or threonine residue on the protein receptor. Has a broad spectrum of substrates for peptides such as EA2, Muc5AC, Muc1a, Muc1b. Probably involved in O-linked glycosylation of the immunoglobulin A1 (IgA1) hinge region. Involved in O-linked glycosylation of APOC-III, ANGPTL3 and PLTP. It participates in the regulation of HDL-C metabolism

Protein Sequence

10 MLGALTLGRA 20 LGAGSVLPRV 30 SPQEDWNEID 40 PIKKKDLHHS 50 NGDEKAQSME 60 TLPPGKVRWR 70 DFNQEAYVGG 80 TMVRSGQDPY 90 ARNKFNQVES 100 DKLRMDRAVP 110 DTRHDQCQRK 120 QWRVDLPATS 130 VVITFHNEAR 140 SALLRTVVSV 150 LKKSPPHLIK 160 EIILVDDYSN 170 DPEDGALLGK 180 IEKVRVLRND 190 RREGLMRSRV 200 RGADAAQAKV 210 LTFLDSHCEC 220 NEHWLEPLLE 230 RVAEDRTRVV 240 SPIIDVINMD 250 NFQYVGASAD 260 LKGGFDWNLV 270 FKWDYMTPEQ 280 RRARQGNPVA 290 PIKTPMIAGG 300 LFVMDKFYFE 310 ELGKYDMMMD 320 VWGGENLEIS 330 FRVWQCGGSL 340 EIIPCSRVGH 350 VFRKQHPYTF 360 PGGSGTVFAR 370 NTRRAAEVWM 380 DEYKNFYYAA 390 VPSARNVPYG 400 NIQSRLELRK 410 KLSCKPFKWY 420 LENVYPELRV 430 PDHQDIAFGA 440 LQQGTNCLDT 450 LGHFADGVVG 460 VYECHNAGGN 470 QEWALTKEKS 480 VKHMDLCLTV 490 VDRAPGSLIK 500 LQGCRENDSR 510 QKWEQIEGNS 520 KLRHVGSNLC 530 LDSRAAKNGG 540 LSVEVCGPAL 550 SQQWKFSLNL QQ

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005576 extracellular region
Cellular Component GO:0005794 Golgi apparatus
Cellular Component GO:0032580 Golgi cisterna membrane
Cellular Component GO:0000139 Golgi membrane
Cellular Component GO:0048471 perinuclear region of cytoplasm
Molecular Function GO:0030246 carbohydrate binding
Molecular Function GO:0030145 manganese ion binding
Molecular Function GO:0004653 polypeptide N-acetylgalactosaminyltransferase activity
Biological Process GO:0002639 positive regulation of immunoglobulin production
Biological Process GO:0051604 protein maturation
Biological Process GO:0006493 protein O-linked glycosylation
Biological Process GO:0016266 protein O-linked glycosylation via N-acetyl-galactosamine

Reference

[1] Fan S, Zhou R, Wen H, Ye H, Ma S et al.. Global profiling of protein lactylome in porcine granulosa cells.. J Ovarian Res 18(1):177. 2025 Aug 8. PMID: 40781717.