Score = 59.7 bits (143), Expect = 5e-09, Method: Compositional matrix adjust.
Identities = 31/76 (40%), Positives = 41/76 (53%), Gaps = 2/76 (2%)
Query: 12 KGVPDFWFIAMESHHELRQNIVRHDQGALKYLTDIK--WCRINDSEGFKLEFTFGPNPYF 69
KG+P+FW ++ L + HD+ LK+L DIK + F LEF F PN +F
Sbjct: 166 KGIPEFWLTVFKNVDLLSDMVQEHDEPILKHLKDIKVKFSEAGQPMSFTLEFHFEPNDFF 225
Query: 70 KNSVLEKTYRMIDETD 85
N VL KTY+M E D
Sbjct: 226 TNEVLTKTYKMRSEPD 241
Acts as a chaperone for the linker histone to facilitate deposition of histone B4 onto linker DNA. Required for both remodeling of sperm chromatin into nucleosomes, and linker histone binding to nucleosome core dimers. Plays a role in tissue-specific gene regulation. Required for primitive hemopoiesis, acting upstream of tal1/scl.
Xenopus tropicalis (taxid: 8364)
Close Homologs in the Non-Redundant Database Detected by BLAST
Score = 101 bits (254), Expect = 2e-28
Identities = 42/90 (46%), Positives = 57/90 (63%), Gaps = 1/90 (1%)
Query: 5 EDKATKEKGVPDFWFIAMESHHELRQNIVRHDQGALKYLTDIKWCRIND-SEGFKLEFTF 63
E++ +EKG+P FW A+++H L + I D+ ALKYLTDI+ + D +GFKL F F
Sbjct: 57 EEEEPEEKGIPGFWLTALKNHPLLSEMITERDEEALKYLTDIRVEYLEDPKKGFKLIFHF 116
Query: 64 GPNPYFKNSVLEKTYRMIDETDIVLEEAIG 93
PNPYF N VL KTY + DE D ++ G
Sbjct: 117 APNPYFTNEVLTKTYHLKDEGDPFELKSEG 146
NAP proteins are involved in moving histones into the nucleus, nucleosome assembly and chromatin fluidity. They affect the transcription of many genes. Length = 236
>gnl|CDD|240226 PTZ00007, PTZ00007, (NAP-L) nucleosome assembly protein -L; Provisional
>PF00956 NAP: Nucleosome assembly protein (NAP); InterPro: IPR002164 It is thought that NAPs act as histone chaperones, shuttling both core and linker histones from their site of synthesis in the cytoplasm to the nucleus
The proteins may be involved in regulating gene expression and therefore cellular differentiation [, ]. The centrosomal protein c-Nap1, also known as Cep250, has been implicated in the cell-cycle-regulated cohesion of microtubule-organizing centres. This 281 kDa protein consists mainly of domains predicted to form coiled coil structures. The C-terminal region defines a novel histone-binding domain that is responsible for targeting CNAP1, and possibly condensin, to mitotic chromosomes []. During interphase, C-Nap1 localizes to the proximal ends of both parental centrioles, but it dissociates from these structures at the onset of mitosis. Re-association with centrioles then occurs in late telophase or at the very beginning of G1 phase, when daughter cells are still connected by post-mitotic bridges. Electron microscopic studies performed on isolated centrosomes suggest that a proteinaceous linker connects parental centrioles and C-Nap1 may be part of a linker structure that assures the cohesion of duplicated centrosomes during interphase, but that is dismantled upon centrosome separation at the onset of mitosis []. ; GO: 0006334 nucleosome assembly, 0005634 nucleus; PDB: 2E50_Q 2Z2R_A 2AYU_A 3Q66_A 3C9B_A 3Q68_B 3Q33_B 2ZD7_B 3DM7_A 3C9D_A ....
>KOG1508 consensus DNA replication factor/protein phosphatase inhibitor SET/SPR-2 [Replication, recombination and repair]
Score = 66.7 bits (162), Expect = 4e-15
Identities = 17/81 (20%), Positives = 29/81 (35%), Gaps = 7/81 (8%)
Query: 12 KGVPDFWFIAMESHHELRQNIVRHDQGALKYLTDIKWCRIN------DSEGFKLEFTF-G 64
+ +FW I + H I D + + IK + D+ F + F F G
Sbjct: 52 DEIAEFWKIVLSQHVSFANYIRASDFKYIDTIDKIKVEWLALESEMYDTRDFSITFHFHG 111
Query: 65 PNPYFKNSVLEKTYRMIDETD 85
FK + K +++ D
Sbjct: 112 IEGDFKEQQVTKVFQIKKGKD 132