>cd01335 Radical_SAM Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S cluster and S-adenosylmethionine (SAM) in close proximity. They are characterized by a conserved CxxxCxxC motif, which coordinates the conserved iron-sulfur cluster. Mechanistically, they share the transfer of a single electron from the iron-sulfur cluster to SAM, which leads to its reductive cleavage to methionine and a 5'-deoxyadenosyl radical, which, in turn, abstracts a hydrogen from the appropriately positioned carbon atom. Depending on the enzyme, SAM is consumed during this process or it is restored and reused. Radical SAM enzymes catalyze steps in metabolism, DNA repair, the biosynthesis of vitamins and coenzymes, and the biosynthesis of many antibiotics. Examples are biotin synthase (BioB), lipoyl synthase (LipA), pyruvate formate-lyase (PFL), coproporphyrinogen oxidase (HemN), lysine 2,3-aminomutase (LAM), anaerobic ribonucleotide reductase (ARR), and MoaA, an enzyme o

Probab=99.32 E-value=6.4e-11 Score=98.72 Aligned_cols=170 Identities=19% Similarity=0.287 Sum_probs=133.8 Q ss_pred ECCCCCCCCCCCCCCCCCC----CCCCHHHHHHHHHHHHHHCCCEEEEECCCCCCCCCCHHHHHHHHHHHHHHHCCCCEE Q ss_conf 6652235352234467899----888823579999999970775189850544534532589999999999853358689 Q gi|254780676|r 92 LGAICTRACTFCNVATGKP----QPLDPQEPENISWAVRSMKLSHVVITSVDRDDLDDGGAQHFAEVISAIRESAPSTTI 167 (329) Q Consensus 92 lG~~CTR~C~FC~V~~G~P----~~~D~~EP~rvA~av~~l~Lk~vViTSV~RDDL~DgGA~hfa~~I~~Ir~~~P~~~I 167 (329) T Consensus 3 ~srGC~~~C~fC~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~g~~~~~-----~~~~~~l~~~~~~~~~~~i 77 (204) T cd01335 3 LTRGCNLNCGFCSNPASKGRGPESPPEIEEILDIVLEAKERGVEVVILTGGEPLLY-----PELAELLRRLKKELPGFEI 77 (204) T ss_pred CCCCCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHCCCEEEEEECCCCCCC-----CCCCHHHHHHHHCCCCCEE T ss_conf 16373856987998754798756678899999999999875986999724676666-----5321013545530687179 Q ss_pred EEECCCCCCCHHHHHHHHHCCCHHHHHCCCCC-CCCCCCCC-CCCHHHHHHHHHHHHHHCCCEEEECCCEEEEEE-ECHH Q ss_conf 98154623446899987410702332013830-00275638-970358999999999970891670140488764-2068 Q gi|254780676|r 168 EVLTPDFLRKPHALEKVVSAKPDVFNHNLETV-ASNYLMVR-PGARYFHSLRLLQRVKELDPLIFTKSGIMLGLG-ETRN 244 (329) Q Consensus 168 EvLiPDf~G~~~al~~v~~A~pdV~nHNiETV-~rLy~~VR-p~a~Y~rSL~vL~~aK~~~~~i~TKSGlMvGLG-Et~e 244 (329) T Consensus 78 ~~~t~~~~~~~~~l~~l~~~g~~~~~i~les~~~~~~~~~~~~~~~~~~~~~~~~~~~~~g--~~~~~~~i~G~p~et~~ 155 (204) T cd01335 78 SIETNGTLLTEELLKELKELGLDGVGVSLDSGDEEVADKIRGSGESFKERLEALKELREAG--LGLSTTLLVGLGDEDEE 155 (204) T ss_pred EEEECCCCCCHHHHHHHHHCCCCCCCCCCCCCCHHHHHHHHCCCCCHHHHHHHHHHHHHCC--CEEEEEEEECCCCCCHH T ss_conf 9983365476999877540375422224356899999998488997599999999998679--98999999827999999 Q ss_pred HHHHHHHHHHHCC-CCEEECCHHCC Q ss_conf 8999999999669-93997502227 Q gi|254780676|r 245 EILQLMDDLRTAD-VDFLTMGQYLQ 268 (329) Q Consensus 245 Ei~e~l~DLr~~g-vdilTiGQYL~ 268 (329) T Consensus 156 ~~~~~~~~~~~~~~~~~~~~~~~~p 180 (204) T cd01335 156 DDLEELELLAEFRSPDRVSLFRLLP 180 (204) T ss_pred HHHHHHHHHHHHCCCCEEEEEEEEC T ss_conf 9999999998518998898987662

HHsearch alignment for GI: 254780676 and conserved domain: cd01335