Anti-sigma factor for SigI3. Negatively regulates SigI3 activity through direct interaction. Binding of the polysaccharide substrate to the extracellular C-terminal sensing domain of RsgI3 may induce a conformational change in its N-terminal cytoplasmic region, leading to the release and activation of SigI3.

644 amino acids

MDNIGVIIKIEGNEAIVMTDDCSFKKVPIKDGMHPGQKILVPNNEVIQKENKSIKRISAVATGIAAVFLMVLSLIWINKPGRPDGIYAYIDVDINPSLNFLIDREGKVKALNPLNDDAQEIIRGVEFEDMFFSEALTQIIKISKAKGIIDENKTNYVLICAALDDNYNLQSDDKSRAQTEFEEFLDGIRESIEKACGNTVIPQTVKVPFEYLKMAKQNDVSMGRYLVYQKLEDIGVNLSIEELKSLDIDEILKKYGVGFDELFKSEYTELPYGTLQTGEDSVVSTEDVPVSPKNAFETMAVPTNTPSISTKPSATPAENPTPKLTQKPTPVPAKTGERTSTTPTPTPAPTVRNGTGSGLRGEYYNNMDFSRFQFVRIDPCIDFDWGEGTPDQSIGKDTYSVRWTGKVEPRYSETYTFYTVTDDGVRLWVDGVLLIDKWKSQSATEHSEQIYLEAGKKYDIKMEYYQHVRAASAKLMWSSKSQQKEIIPSSQLYPSDGPLPQKDVNGLSAEYYGDAELKDKRFTRIDDAINFNWDKDFPVGELKDGKFSVRWVGKIDTRYTEEYTFHTVANGGVRVWINNVLIIDNWQNQGKEAENSGKIELKAGRQYDIKVEYCNYGEPAFIKLLWSSQRQKKEVVPSKNLFAD

72.7 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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