CMP-N-acetylneuraminate-beta-1,4-galactoside alpha-2,3-sialyltransferase (EC 2.4.99.6) (Beta-galactoside alpha-2,3-sialyltransferase 3) (Alpha 2,3-ST 3) (Gal beta-1,3(4) GlcNAc alpha-2,3 sialyltransferase) (N-acetyllactosaminide alpha-2,3-sialyltransferase) (ST3Gal III) (ST3GalIII) (ST3N) (Sialyltransferase 6)
1_MGLLV 6_ FVRNL 11_ LLALC 16_ LFLVL 21_ GFLYY 26_ SAWKL 31_ HLLQW 36_ EEDSN 41_ SVVLS 46_ FDSAG 51_ QTLGS 56_ EYDRL 61_ GFLLN 66_ LDSKL 71_ PAELA 76_ TKYAN 81_ FSEGA 86_ CKPGY 91_ ASALM 96_ TAIFP 101_ RFSKP 106_ APMFL 111_ DDSFR 116_ KWARI 121_ REFVP 126_ PFGIK 131_ GQDNL 136_ IKAIL 141_ SVTKE 146_ YRLTP 151_ ALDSL 156_ RCRRC 161_ IIVGN 166_ GGVLA 171_ NKSLG 176_ SRIDD 181_ YDIVV 186_ RLNSA 191_ PVKGF 196_ EKDVG 201_ SKTTL 206_ RITYP 211_ EGAMQ 216_ RPEQY 221_ ERDSL 226_ FVLAG 231_ FKWQD 236_ FKWLK 241_ YIVYK 246_ ERVSA 251_ SDGFW 256_ KSVAT 261_ RVPKE 266_ PPEIR 271_ ILNPY 276_ FIQEA 281_ AFTLI 286_ GLPFN 291_ NGLMG 296_ RGNIP 301_ TLGSV 306_ AVTMA 311_ LHGCD 316_ EVAVA 321_ GFGYD 326_ MSTPN 331_ APLHY 336_ YETVR 341_ MAAIK 346_ ESWTH 351_ NIQRE 356_ KEFLR 361_ KLVKA 366_RVITD
1: Catalyzes the formation of the NeuAc-alpha-2,3-Gal-beta-1,4-GlcNAc-, NeuAc-alpha-2,3-Gal-beta-1,3-GlcNAc- and NeuAc-alpha-2,3-Gal-beta-1,3-GalNAc- sequences found in terminal carbohydrate groups of glycoproteins and glycolipids. The highest activity is toward Gal-beta-1,3-GlcNAc and the lowest toward Gal-beta-1,3-GalNAc