>sp|Q3SMC6|APAH_THIDA Bis(5'-nucleosyl)-tetraphosphatase, symmetrical OS=Thiobacillus denitrificans GN=apaH MPTYAIGDIQGCHEPLLRLLDVVRFDAASDRLWFVGDLVNRGPDSLETLRFIRGLGDAAV CVLGNHDLHLIALAAGHGRAHKGDTLDAVLAAPDRDELLGWLRRQKLAWREGDWLMVHAG VLPGWTADEVMRHAAEAEAVLAGAHYRDFLAQMYGNAPVAWDDGLEGVERLRVIVNAFTR LRYCSAAGEMEFHHKGAPGTQPSGWLPWFDVPARKSADLAVVFGHWSTLGLVNRDDLIAL DTGCLWGGALSAVRLEDRQVFAVKCRQARSPTG