8KA1: Rdtnd-rid cbd

Crystal structure of Vibrio vulnificus RID-dependent transforming NADase domain (RDTND)/calmodulin-binding domain of Rho inactivation domain (RID-CBD) complexed with Ca2+-free calmodulin. Determined by X-ray diffraction at 2.82 Å resolution. Released 10 Jul 2024.

Method
X-ray diffraction
Resolution
2.82 Å
Organisms
Vibrio vulnificus, Homo sapiens
Chains
8
Atoms
17,066
Mol. weight
259.18 kDa
Ligands
MG
Released
10 Jul 2024

Explore 8KA1 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

8KA1 contains 103 α-helices and 86 β-strands across 8 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 20 helices, 16 β-strands

ElementResiduesLengthSheet
α-helix1969-198315
α-helix1997-19982
α-helix2011-202515
α-helix2036-204813
α-helix2052-206312
β-strand2077-207931
β-strand2080-208232
α-helix2087-20959
β-strand2103-210531
α-helix2107-21093
α-helix2111-212818
α-helix2136-216126
β-strand2166-217162
β-strand2176-217723
α-helix21811
α-helix2182-21865
α-helix2187-21959
β-strand2199-220572
α-helix2209-22124
α-helix2217-22193
β-strand222212
β-strand2231-223333
α-helix2240-22467
α-helix2258-22592
β-strand2260-226123
α-helix2266-22749
α-helix2280-22867
β-strand2288-229254
β-strand2297-230154
β-strand2310-231454
α-helix2320-233314
α-helix2337-23393
β-strand2343-234754
β-strand2350-235564
β-strand2357-236374
β-strand2369-237024
Chain B: 8 helices, 4 β-strands
ElementResiduesLengthSheet
α-helix7-1812
β-strand21-2225
β-strand27-2825
α-helix30-4011
α-helix46-5510
α-helix66-7914
α-helix82-9110
β-strand100-10236
α-helix103-11311
α-helix119-12911
β-strand136-13836
α-helix139-1457
Chain C: 15 helices, 17 β-strands
ElementResiduesLengthSheet
α-helix1969-198517
α-helix1997-19982
α-helix2010-202516
α-helix2036-204914
α-helix2052-206312
β-strand2078-207927
β-strand2081-208228
α-helix2087-209711
β-strand2104-210527
α-helix2111-212616
α-helix2139-216123
β-strand2166-217168
β-strand2176-217729
α-helix21811
α-helix2182-21865
α-helix2187-21948
β-strand2199-220468
α-helix2209-22124
β-strand222218
β-strand2231-223339
β-strand2260-226239
α-helix2268-22747
α-helix2280-22867
β-strand2288-2291410
β-strand2297-2301510
β-strand2310-2314510
α-helix2320-233314
β-strand2343-2346410
β-strand2351-2354410
β-strand2358-2360310
β-strand2364111
β-strand2368111
Chain D: 9 helices, 4 β-strands
ElementResiduesLengthSheet
α-helix7-2014
β-strand27112
α-helix30-323
α-helix34-385
α-helix46-516
β-strand65112
α-helix66-749
α-helix82-9211
β-strand101-102213
α-helix103-11311
α-helix119-12911
β-strand136-137213
α-helix140-1467
Chain E: 21 helices, 18 β-strands
ElementResiduesLengthSheet
α-helix1969-198416
β-strand1992114
β-strand1995114
α-helix1997-19982
α-helix2010-202516
α-helix2034-20363
α-helix2037-204913
α-helix2052-206312
α-helix2074-20763
β-strand2077-2079315
β-strand2081-2082216
α-helix2087-209711
β-strand2103-2105315
α-helix2107-21093
α-helix2111-212919
α-helix2139-216123
β-strand2166-2171616
β-strand2176-2177217
α-helix21811
α-helix2182-21865
α-helix2187-21959
β-strand2199-2205716
α-helix2209-22124
α-helix2217-22193
β-strand2222116
β-strand2231-2233317
α-helix2240-22489
β-strand2260-2262317
α-helix2268-22736
α-helix2280-22867
β-strand2288-2292518
β-strand2297-2301518
β-strand2310-2314518
α-helix2320-233314
α-helix2337-23393
β-strand2343-2347518
β-strand2350-2354518
β-strand2358-2364718
β-strand2368-2370318
Chain F: 8 helices, 4 β-strands
ElementResiduesLengthSheet
α-helix7-2014
β-strand27119
α-helix33-397
α-helix46-5510
β-strand65119
α-helix66-7813
α-helix82-9110
β-strand100-102320
α-helix103-11210
α-helix119-12911
β-strand136-138320
α-helix139-1446
Chain G: 14 helices, 19 β-strands
ElementResiduesLengthSheet
α-helix1969-198416
β-strand1998121
β-strand2001121
α-helix2010-202516
α-helix2036-204813
α-helix2052-206413
β-strand2077-2079322
β-strand2081-2082223
α-helix2087-209610
β-strand2103-2105322
α-helix2111-212818
α-helix2136-216126
β-strand2166-2171623
β-strand2176-2177224
α-helix21811
α-helix2182-21865
α-helix2187-21948
β-strand2199-2205723
α-helix2209-22124
β-strand2222123
β-strand2231-2233324
β-strand2260-2262324
α-helix2268-22747
α-helix2281-22866
β-strand2288-2292525
β-strand2297-2301525
β-strand2310-2314525
α-helix2320-233314
β-strand2343-2346425
β-strand2351-2354425
β-strand2358-2360325
β-strand2362-2364326
β-strand2368-2370326
Chain H: 8 helices, 4 β-strands
ElementResiduesLengthSheet
α-helix7-1711
β-strand27-28227
α-helix33-397
α-helix46-527
β-strand64-65227
α-helix66-7611
α-helix82-9110
β-strand101-102228
α-helix103-11412
α-helix119-12911
β-strand136-137228
α-helix139-1468

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Rdtnd-rid cbdA, C, E, Gprotein416Vibrio vulnificusA0A2S3R7M0
Calmodulin-2B, D, F, Hprotein151Homo sapiensP0DP24 (AlphaFold model)
Sequence of entity 1 (A, C, E, G), FASTA
>8KA1_1 RDTND-RID CBD (chains A, C, E, G)
GEASHDSAESLVAARAEKVANLYRWLDTDNDVATDKYVPVPGFERVDVDVSDEVKQRMIQ
SMSGYIEHTDNQVPKDQAEALATLFVESTLDYDWDKRVEFLTKLESYGYSFEAPHAEKSI
VSFWSGKNFKQYRDILDNAQTDGKKVVYDIDVKGNAFAIDLNKHLMRWGGLFLDPDNAEQ
NQLKSSIDAATFSNTGFWSSVYATGAQNDVYVIAEGGVRLGNYFWNVELPALRQLQREGL
VGEIRLLDKPVSEYKDLPADQIGRRLTDAGVAVKVRFDALSHERQAELLADNPDGYKADT
LVELDVKLSAIDSMLRESLPFYSLRTERNLLVQEGEEGFEVRSWPGIDGKSKTILLDNPE
DAAQQKSIERFILANFDNFEQMPDELFLVDNKVLSHHDGRTRIIAQKEDGAWTYNT
Sequence of entity 2 (B, D, F, H), FASTA
>8KA1_2 Calmodulin-2 (chains B, D, F, H)
GAMADQLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDA
DGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLT
DEEVDQMIREADIDGDGQVNYEEFVQMMTAK

Ligands and cofactors

IDNameFormulaCopies
MGMagnesium ionMg3

Primary citation

Dissemination of pathogenic bacteria is reinforced by a MARTX toxin effector duet. Choi, S., Lee, Y., Park, S. et al. Nat Commun (2024) 15:6218-6218. DOI 10.1038/s41467-024-50650-0 · PubMed

Other PDB entries of the same protein (UniProt A0A2S3R7M0), best resolution first:

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