Hybrid model of a complex of BREX proteins BrxB and PglZ from Salmonella typhimurium

PglZ from Type I BREX phage defence systems is a metal-dependent nuclease that forms a sub-complex with BrxB.

AlphaFold model, split into domains at "hinge" points, was rigid fit into the cryo-EM map. The following domains were used: (1) BrxB + 1-96 PglZ, (2) 97-292 PglZ, (3) 293-748 PglZ, and (4) 749-867 PglZ. The model was then simulated in the ISOLDE plug-in for ChimeraX to resolve distortions from rigid domain fitiing.

Complex of BREX proteins BrxB and PglZ from Salmonella typhimurium

Complex of BREX proteins BrxB / PglZ from Salmonella Typhimurium str. D23580

Salmonella enterica subsp. enterica serovar Typhimurium str. D23580

10,876,932 from blob picking on dataset 1 4,716,237 from template picking on dataset 2

IDPVLEYRLSQVQSRISEERFLKNNGSGNEIGFWIFDYPAQNELQVREHLKYLLRNLEKDHKFAHLNIFQIIVDMLTERG
LFDRVCQQEVKVGTEALKKQLVGLLNQKKIADYIAKKVDLQNQEFVILTGMGNAWPLVRGHELMSALQDVMGFTPLLMFY
PGTYSGHDLSPLAGIDSRNYYRAFRLVPESGPAATLNPR

MTLQNQEFIAGLKAKFAEHRIVFWHDPDKRFLEELDNLELENVTLLDMTDQSQLAVKKRIEIDEPEQQFLLWFPHDAPPK
EFDWLLDIRLYSTEFHADFAAITLNTLGIPQLGLREHIQRRKAFFSTKRLSALKGLVTEQENEASLDKKMVAVIAGVKTA
KTEEILFSLITQYVNQQKDDDSDLENTLAMLKRHDLEGVLWDILNQEMGYQAEHPTLENLILKLFCTDLSAQADPQKREW
LEKNVLATPSGRASALAFMVTWRADRRYKEAYDYCAQQMQDALRPEDQYRLSSPYDLHECETTLSIEQTIIHALVTQLLE
ESTTLDREAFKKLLSERQSKYWCQTRQEYCAIYDALRQAERLLNLRNRHIDGFHYQDSATFWKAYCEELFRFDQAYRLFN
EYALLVHSKGAMILKSLDDYIEALYSNWYLAELSRSWNKVLETENRMQEWRIAGVPRQQNFYNEVVKPQFNNPQIKRVFV
IISDALRYEVAEELGNQINTEKRFTAELRSQLGVLPSYTQLGMAALLPHDEICYQPGSGDIVYADGLSTSGTPNRDTILK
KYKGMAVKSDDLLKWKNQQGRDLIRDYEVVYIWHNTIDAMGDSASTEEKTFEACRNAVVELKDLVTRVINRLHGTRIIVT
ADHGFLFQQQPLSGQDKTTLQIKPDNTIKNHKRFIIGHQLPADDFCWKGKVADTAGVSDNSEFLIPKGIQRFHFSGGARF
VHGGAMLQEVCVPVLQVKALQKTAAEKQPQRRPVDIVKHHPLIKLVNNIDKVSLLQTHPVGELYEPRTLNIFIVDNANNV
VSGKERICFDSDNNTMEKRVRDVTLKLIGANFNRRNEYWLILEDAQTETGYQKYPVIIDLAFQDDFFKETAAAKFERQHM
DSSTSAA

Biotechnology and Biological Sciences Research Council (BBSRC)

The Lister Institute of Preventive Medicine

National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

National Institutes of Health/National Cancer Institute (NIH/NCI)

Restriction, Bacteriophage, Defense, BREX, Salmonella typhimurium, Salmonella, AlphaFold, ANTIMICROBIAL PROTEIN

MTLQNQEFIAGLKAKFAEHRIVFWHDPDKRFLEELDNLELENVTLLDMTDQSQLAVKKRIEIDEPEQQFLLWFPHDAPPK
EFDWLLDIRLYSTEFHADFAAITLNTLGIPQLGLREHIQRRKAFFSTKRLSALKGLVTEQENEASLDKKMVAVIAGVKTA
KTEEILFSLITQYVNQQKDDDSDLENTLAMLKRHDLEGVLWDILNQEMGYQAEHPTLENLILKLFCTDLSAQADPQKREW
LEKNVLATPSGRASALAFMVTWRADRRYKEAYDYCAQQMQDALRPEDQYRLSSPYDLHECETTLSIEQTIIHALVTQLLE
ESTTLDREAFKKLLSERQSKYWCQTRQEYCAIYDALRQAERLLNLRNRHIDGFHYQDSATFWKAYCEELFRFDQAYRLFN
EYALLVHSKGAMILKSLDDYIEALYSNWYLAELSRSWNKVLETENRMQEWRIAGVPRQQNFYNEVVKPQFNNPQIKRVFV
IISDALRYEVAEELGNQINTEKRFTAELRSQLGVLPSYTQLGMAALLPHDEICYQPGSGDIVYADGLSTSGTPNRDTILK
KYKGMAVKSDDLLKWKNQQGRDLIRDYEVVYIWHNTIDAMGDSASTEEKTFEACRNAVVELKDLVTRVINRLHGTRIIVT
ADHGFLFQQQPLSGQDKTTLQIKPDNTIKNHKRFIIGHQLPADDFCWKGKVADTAGVSDNSEFLIPKGIQRFHFSGGARF
VHGGAMLQEVCVPVLQVKALQKTAAEKQPQRRPVDIVKHHPLIKLVNNIDKVSLLQTHPVGELYEPRTLNIFIVDNANNV
VSGKERICFDSDNNTMEKRVRDVTLKLIGANFNRRNEYWLILEDAQTETGYQKYPVIIDLAFQDDFF