7PJH: Human spliceosomal maturation factor AAR2

Crystal structure of the human spliceosomal maturation factor AAR2 bound to the RNAse H domain of PRPF8. Determined by X-ray diffraction at 2.35 Å resolution. Released 2 Nov 2022.

Method
X-ray diffraction
Resolution
2.35 Å
Organism
Homo sapiens
Chains
2
Atoms
4,790
Mol. weight
75.39 kDa
Released
2 Nov 2022

Explore 7PJH in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

7PJH contains 36 α-helices and 23 β-strands across 2 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: 23 helices, 13 β-strands

ElementResiduesLengthSheet
α-helix11-133
α-helix14-174
β-strand19-2461
α-helix26-272
β-strand31-3442
β-strand37-4042
β-strand47-5151
α-helix521
β-strand54-6182
β-strand6513
β-strand6713
β-strand75-8172
β-strand86-9271
β-strand97-9931
α-helix102-1043
α-helix105-11814
α-helix119-1213
β-strand122-12431
α-helix1251
α-helix127-1293
α-helix130-1378
α-helix142-1487
β-strand155-15622
α-helix208-2103
α-helix222-2309
α-helix233-24311
α-helix250-26314
α-helix268-28215
α-helix285-2906
α-helix292-30615
α-helix323-33513
α-helix342-35918
α-helix366-3672
α-helix368-3703
α-helix371-3722
β-strand373-37424
Chain B: 13 helices, 10 β-strands
ElementResiduesLengthSheet
β-strand1762-176325
α-helix1768-17725
β-strand1777-178156
β-strand1787-179264
β-strand1798-180364
β-strand1805-181066
β-strand1816-182276
α-helix1824-18274
α-helix1833-185119
α-helix1854-18563
β-strand1860-186346
α-helix1866-18683
α-helix1869-18757
β-strand1883-188536
β-strand1886-188725
α-helix1893-18986
α-helix1900-19089
β-strand1913-191866
α-helix1923-19253
α-helix1929-194517
α-helix1947-19537
α-helix1973-199523
α-helix2006-20127

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Protein AAR2 homologAprotein401Homo sapiensQ9Y312 (AlphaFold model)
Pre-mRNA-processing-splicing factor 8Bprotein259Homo sapiensQ6P2Q9 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>7PJH_1 Protein AAR2 homolog (chains A)
MKHHHHHHPMSDYDIPTTENLYFQGAEFMAAVQMDPELAKRLFFEGATVVILNMPKGTEF
GIDYNSWEVGPKFRGVKMIPPGIHFLHYSSVDKANPKEVGPRMGFFLSLHQRGLTVLRWS
TLREEVDLSPAPESEVEAMRANLQELDQFLGPYPYATLKKWISLTNFISEATVEKLQPEN
RQICAFSDLPVLSMKHSSSRAGTEIRFSELPTQMFPERAGTEIRFSELPTQMFPEGATPA
EITKHSMDLSYALETVLNKQFPSSPQDVLGELQFAFVCFLLGNVYEAFEHWKRLLNLLCR
SEAAMMKHHTLYINLISILYHQLGEIPADFFVDIVSQDNFLTSTLQVFFSSACSIAVDAT
LRKKAEKFQAHLTKKFRWDFAAEPEDCAPVVVELPEGIEMG
Sequence of entity 2 (B), FASTA
>7PJH_2 Pre-mRNA-processing-splicing factor 8 (chains B)
PTEPYLSSQNYGELFSNQIIWFVDDTNVYRVTIHKTFEGNLTTKPINGAIFIFNPRTGQL
FLKIIHTSVWAGQKRLGQLAKWKTAEEVAALIRSLPVEEQPKQIIVTRKGMLDPLEVHLL
DFPNIVIKGSELQLPFQACLKVEKFGDLILKATEPQMVLFNLYDDWLKTISSYTAFSRLI
LILRALHVNNDRAKVILKPDKTTITEPHHIWPTLTDEEWIKVEVQLKDLILADYGKKNNV
NVASLTQSEIRDIILGMEI

Primary citation

Structural and functional investigation of the human snRNP assembly factor AAR2 in complex with the RNase H-like domain of PRPF8. Preussner, M., Santos, K.F., Alles, J. et al. Acta Crystallogr D Struct Biol (2022) 78:1373-1383. DOI 10.1107/S2059798322009755 · PubMed

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