Summary for Nap1p (NES ID: 254)

Full Name
Nucleosome assembly protein     UniProt    
Alternative Names
None
Organism
Saccharomyces cerevisiae (Baker's yeast)    
Experimental Evidence for CRM1-mediated Export
Mutations That Affect Nuclear Export
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
Secondary Structure of Export Signal
α-helix
Other Residues Important for Export
Unknown
Sequence
Show FASTA Format Show Domain Info by CDD Show Secondary Structure by PSIPRED Show Conservation Score by AL2CO
10 20 30 40 50 60
MSDPIRTKPK SSMQIDNAPT PHNTPASVLN PSYLKNGNPV RAQAQEQDDK IGTINEEDIL
70 80 90 100 110 120
ANQPLLLQSI QDRLGSLVGQ DSGYVGGLPK NVKEKLLSLK TLQSELFEVE KEFQVEMFEL
130 140 150 160 170 180
ENKFLQKYKP IWEQRSRIIS GQEQPKPEQI AKGQEIVESL NETELLVDEE EKAQNDSEEE
190 200 210 220 230 240
QVKGIPSFWL TALENLPIVC DTITDRDAEV LEYLQDIGLE YLTDGRPGFK LLFRFDSSAN
250 260 270 280 290 300
PFFTNDILCK TYFYQKELGY SGDFIYDHAE GCEISWKDNA HNVTVDLEMR KQRNKTTKQV
310 320 330 340 350 360
RTIEKITPIE SFFNFFDPPK IQNEDQDEEL EEDLEERLAL DYSIGEQLKD KLIPRAVDWF
370 380 390 400 410
TGAALEFEFE EDEEEADEDE DEEEDDDHGL EDDDGESAEE QDDFAGRPEQ APECKQS
3D Structures in PDB
2Z2R (X-Ray,3.20 Å resolution)
Comments
Nap1p is a protein involved in the deposition and transport of histones H2A and H2B. Nap1p binds directly to Kap114p and increase the affinity of Kap114p for the H2A and H2B. Mosammaparast et al. showed that Nap1p is a shuttling protein. The N-terminal contains a CRM1 dependent NES, however this region is located inside the folded domain of Nap1, and is inaccessible for CRM1 binding. Mislocalization in Xpo1-1 temperature sensitive strains is weak and thus this NES is in-doubt.
References
[1]. "A role for nucleosome assembly protein 1 in the nuclear transport of histones H2A and H2B"
Mosammaparast N, Ewart CS, Pemberton LF (2002) EMBO J, 21:6527-38 PubMed
User Input
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