thi5

Thiamine repressible genes regulatory protein thi5

857 amino acids

Transcription factor that activates the nmt1 promoter. Regulation of thiamine repressible genes. Negatively regulates conjugation during meiosis, by inducing negative regulators which delay conjugation. Involved in thi1 regulation.

95.579 kDa

MCPSDFSSRSLFLEAKEEEYKQRRRVPLDSRRRVRRACLSCRAKKIRCSGSEPCQACIATPSQCKYADSLKERTPSKQFIAELSQRQKCFEYLMELLCPSLPHDTRSLVKLCKHVESSLASGSDVRSLLIPGSIDQSVLKVAATNNKDDSSAVKSANVSFPSSSTPPSSDSNFSSIQNTDLNTSIKFTENISANAIHVNQDKVIRSANNLIINSQPILPVRSFLDALGEPIYLSPTSSTYFLNSVLASLQLNSSNTPESLLIDYQSKIPEDLSSSLLPLELNTLQSTPTSVSVGSASSQGTHEYSIINLTSNHSSFSLKALKKIAHNLLPPVSVAERYANEFFLRYQSFFYFYPPSVFSNRYQILADGLVNSDTLDTGFLAVALLIVVLGHFSNNNINVLPKEVQLSHIDSMIQISEQLISSLLNRCTLSSIQAVFLLSLYHFLTGNFKCAYSYLGFAIHSAHTLGLEHGSTDNSTLNEVSTEETSIRICWSLRVLASFLYIQSGITPIINLFPNGLNSLKLPTVVPELEARHLPSSVFHFVAIIKYAEISVRSLNSLYESSSDYLMDVSNFPKLLLKVERIYSQARNWKLNLTHQQLNGTNDTSDLLFHSNVSLHLFYHYLIVKVSCPIMFFYLNNWYSVKPSSFTKGLNNKPSLEDVFSNLETCYESAKAIVQLSSKLLSAGQMDKCFYLEFEILYCSAIVLFLFSVMHLGAENPLLESIYLLEDMGSRTIDSKVRLEKLKSAIEIFDINSATEMPINEPLSASFESVNKENSQSGYMAWQNWVTELSSSNIPLGHALGNPESNNSSNSFKPSHPSQSFLVNESLDFSSNPKEPPFLPWSEALLNMDMQLNRLGP

THI5

4-amino-5-hydroxymethyl-2-methylpyrimidine phosphate synthase THI5

340 amino acids

Responsible for the formation of the pyrimidine heterocycle in the thiamine biosynthesis pathway. Catalyzes the formation of hydroxymethylpyrimidine phosphate (HMP-P) from histidine and pyridoxal phosphate (PLP). The protein uses PLP and the active site histidine to form HMP-P, generating an inactive enzyme. The enzyme can only undergo a single turnover, which suggests it is a suicide enzyme.

Belongs to the NMT1/THI5 family.

38.592 kDa

MSTDKITFLLNWQPTPYHIPIFLAQTKGYFKEQGLDMAILEPTNPSDVTELIGSGKVDMGLKAMIHTLAAKARGFPVTSVASLLDEPFTGVLYLKGSGITEDFQSLKGKKIGYVGEFGKIQIDELTKHYGMKPEDYTAVRCGMNVAKYIIEGKIDAGIGIECMQQVELEEYLAKQGRPASDAKMLRIDKLACLGCCCFCTVLYICNDEFLKKNPEKVRKFLKAIKKATDYVLADPVKAWKEYIDFKPQLNNDLSYKQYQRCYAYFSSSLYNVHRDWKKVTGYGKRLAILPPDYVSNYTNEYLSWPEPEEVSDPLEAQRLMAIHQEKCRQEGTFKRLALPA

THI5

4-amino-5-hydroxymethyl-2-methylpyrimidine phosphate synthase

339 amino acids

Responsible for the formation of the pyrimidine heterocycle in the thiamine biosynthesis pathway. Catalyzes the formation of hydroxymethylpyrimidine phosphate (HMP-P) from histidine and pyridoxal phosphate (PLP). The protein uses PLP and the active site histidine to form HMP-P, generating an inactive enzyme. The enzyme can only undergo a single turnover, which suggests it is a suicide enzyme.

Belongs to the NMT1/THI5 family.

38.377 kDa

MSTNKITFLLNWEAAPYHIPVYLANIKGYFKDENLDIAILEPSNPSDVTELVGSGKVDMGLKAMVHTLAAKARGFPVTSIGSLLDEPFTGICYLEGSGITSDFQSLKGKRIGYVGEFGKIQVDELTKHYGMTPDDYVAVRCGMNVAKYILEGTIDCGIGIECIQQVELEEALKEQGKDSNDAKMLRIDKLAELGCCCFCTILYIANDKFIAENPQAVKKFLKAIKRATDYMLAHPREAWAEYGNFKPTMQTDLNTKKFQRCYAYFSESLYNVHRDWRKVNNYGKRLDILPENYVPNYTNEYLSWPEPKEVDDPEKAQDLMLKHQEECKTCGGYKRLVLA