NEUA_ECOLX N-acylneuraminate cytidylyltransferase neuA MRTKIIAIIPARSGSKGLRNKNALMLIDKPLLAYTIEAALQSEMFEKVIVTTDSEQYGAIAESYGADFLLRPEELATDKASSFEFIKHALSIYTDYESFALLQPTSPFRDSTHIIEAVKLYQTLEKYQCVVSVTRSNKPSQIIRPLDDYSTLSFFDLDYSKYNRNSIVEYHPNGAIFIANKQHYLHTKHFFGRYSLAYIMDKESSLDIDDRMDFELAITIQQKKNRQKIDLYQNIHNRINEKRNEFDSVSDITLIGHSLFDYWDVKKINDIEVNNLGIAGINSKEYYEYIIEKELIVNFGEFVFIFFGTNDIVVSDWKKEDTLWYLKKTCQYIKKKNAASKIYLLSVPPVFGRIDRDNRIINDLNSYLRENVDFAKFISLDHVLKDSYGNLNKMYTYDGLHFNSNGYTVLENEIAEIVK CMP-N-acetylneuraminic acid synthase 419