Descriptions

DEAD-box proteins utilize ATP to bind and remodel RNA and RNA-protein complexes. The Ded1/DDX3 subfamily of DEAD-box proteins is of particular interest as their function during protein translation, are essential for viability, and are frequently altered in human malignancies. <br>There is a unique interdomain interaction between the two ATPase domains (DEAD box helicase domain and helicase domain) in which the C-terminal helicase domain clashes with the RNA-binding surface. Destabilizing this interaction accelerates RNA duplex unwinding, suggesting that it is present in solution and inhibitory for catalysis. The N-terminal extension to the DEAD box helicase interacts with DEAD box helicase domain and C-terminal helicase domain, and stabilizes the autoinhibited state of DDX3X.

Autoinhibitory domains (AIDs)

Target domain

203-390 (DEAD box helicase domain)

Relief mechanism

Assay

Target domain

413-574 (C-terminal helicase domain)

Relief mechanism

Assay

Target domain

203-390 (DEAD box helicase domain);413-574 (C-terminal helicase domain)

Relief mechanism

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for P16381

Entry ID Method Resolution Chain Position Source
AF-P16381-F1 Predicted AlphaFoldDB

41 variants for P16381

Variant ID(s) Position Change Description Diseaes Association Provenance
rs3388520084 20 D>E No EVA
rs249169317 24 R>P No EVA
rs3388517613 31 S>N No EVA
rs220911642 52 F>S No EVA
rs3388521502 87 G>D No EVA
rs264052390 105 S>G No EVA
rs3388524368 109 R>W No EVA
rs3388517653 120 R>W No EVA
rs3388522165 144 R>L No EVA
rs3388524955 145 L>F No EVA
rs3391122143 147 Q>L No EVA
rs3388524364 207 K>R No EVA
rs3388526286 222 C>Y No EVA
rs3388521162 233 F>I No EVA
rs3388522166 266 P>Q No EVA
rs3388524373 295 R>C No EVA
rs3388525034 314 R>C No EVA
rs3391169111 432 D>V No EVA
rs3388524403 441 S>P No EVA
rs3388526300 443 I>R No EVA
rs3388525015 451 K>Q No EVA
rs3388524393 469 S>C No EVA
rs3388517599 471 H>N No EVA
rs3388520994 472 G>* No EVA
rs3388521513 492 P>T No EVA
rs3391010803 494 L>I No EVA
rs1134777484 505 D>Y No EVA
rs3388521109 530 R>C No EVA
rs3388521500 538 G>R No EVA
rs3411829535 565 E>V No EVA
rs3388520038 570 L>V No EVA
rs3388519515 573 M>I No EVA
rs3388522273 574 A>V No EVA
rs3388520085 575 F>L No EVA
rs3388523217 583 S>C No EVA
rs3388521552 583 S>N No EVA
rs3388522286 585 G>R No EVA
rs3388522183 596 G>A No EVA
rs3388519483 632 F>L No EVA
rs3388520103 650 Y>C No EVA
rs3388524050 651 S>G No EVA

No associated diseases with P16381

2 regional properties for P16381

Type Name Position InterPro Accession
domain Sodium/calcium exchanger membrane region 97 - 257 IPR004837-1
domain Sodium/calcium exchanger membrane region 290 - 433 IPR004837-2

Functions

Description
EC Number 3.6.4.13 Acting on ATP; involved in cellular and subcellular movement
Subcellular Localization
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

2 GO annotations of cellular component

Name Definition
nucleus A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
P granule A small cytoplasmic, non-membranous RNA/protein complex aggregate in the primordial germ cells of many higher eukaryotes.

5 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
ATP hydrolysis activity Catalysis of the reaction
DNA binding Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
mRNA binding Binding to messenger RNA (mRNA), an intermediate molecule between DNA and protein. mRNA includes UTR and coding sequences, but does not contain introns.
RNA helicase activity Unwinding of an RNA helix, driven by ATP hydrolysis.

4 GO annotations of biological process

Name Definition
cell differentiation The cellular developmental process in which a relatively unspecialized cell, e.g. embryonic or regenerative cell, acquires specialized structural and/or functional features that characterize a specific cell. Differentiation includes the processes involved in commitment of a cell to a specific fate and its subsequent development to the mature state.
gamete generation The generation and maintenance of gametes in a multicellular organism. A gamete is a haploid reproductive cell.
negative regulation of gene expression Any process that decreases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product (protein or RNA).
spermatogenesis The developmental process by which male germ line stem cells self renew or give rise to successive cell types resulting in the development of a spermatozoa.

26 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
Q5W5U4 DDX4 Probable ATP-dependent RNA helicase DDX4 Bos taurus (Bovine) SS
Q6GVM6 DDX3Y ATP-dependent RNA helicase DDX3Y Pan troglodytes (Chimpanzee) SS
Q9NQI0 DDX4 Probable ATP-dependent RNA helicase DDX4 Homo sapiens (Human) SS
O15523 DDX3Y ATP-dependent RNA helicase DDX3Y Homo sapiens (Human) SS
O00571 DDX3X ATP-dependent RNA helicase DDX3X Homo sapiens (Human) EV
Q61496 Ddx4 ATP-dependent RNA helicase DDX4 Mus musculus (Mouse) SS
Q62095 Ddx3y ATP-dependent RNA helicase DDX3Y Mus musculus (Mouse) SS
Q62167 Ddx3x ATP-dependent RNA helicase DDX3X Mus musculus (Mouse) SS
Q99MJ9 Ddx50 ATP-dependent RNA helicase DDX50 Mus musculus (Mouse) PR
Q91VC3 Eif4a3 Eukaryotic initiation factor 4A-III Mus musculus (Mouse) PR
Q9Z1N5 Ddx39b Spliceosome RNA helicase Ddx39b Mus musculus (Mouse) PR
Q9QY15 Ddx25 ATP-dependent RNA helicase DDX25 Mus musculus (Mouse) PR
Q61655 Ddx19a ATP-dependent RNA helicase DDX19A Mus musculus (Mouse) SS
Q501J6 Ddx17 Probable ATP-dependent RNA helicase DDX17 Mus musculus (Mouse) PR
Q8VDW0 Ddx39a ATP-dependent RNA helicase DDX39A Mus musculus (Mouse) PR
Q91VN6 Ddx41 Probable ATP-dependent RNA helicase DDX41 Mus musculus (Mouse) PR
Q61656 Ddx5 Probable ATP-dependent RNA helicase DDX5 Mus musculus (Mouse) PR
Q6GWX0 DDX4 Probable ATP-dependent RNA helicase DDX4 Sus scrofa (Pig) SS
Q2R1M8 Os11g0599500 DEAD-box ATP-dependent RNA helicase 52C Oryza sativa subsp. japonica (Rice) SS
Q6Z4K6 PL10B DEAD-box ATP-dependent RNA helicase 52B Oryza sativa subsp. japonica (Rice) SS
Q75HJ0 PL10A DEAD-box ATP-dependent RNA helicase 37 Oryza sativa subsp. japonica (Rice) SS
O01836 glh-3 ATP-dependent RNA helicase glh-3 Caenorhabditis elegans PR
D0PV95 laf-1 ATP-dependent RNA helicase laf-1 Caenorhabditis elegans SS
Q84W89 RH37 DEAD-box ATP-dependent RNA helicase 37 Arabidopsis thaliana (Mouse-ear cress) SS
Q8LA13 RH11 DEAD-box ATP-dependent RNA helicase 11 Arabidopsis thaliana (Mouse-ear cress) SS
Q9M2F9 RH52 DEAD-box ATP-dependent RNA helicase 52 Arabidopsis thaliana (Mouse-ear cress) SS
10 20 30 40 50 60
MSHVAEEDEL GLDQQLAGLD LTSRDSQSGG STASKGRYIP PHLRNREAAK AFYDKDGSRW
70 80 90 100 110 120
SKDKDAYSSF GSRSDTRAKS SFFSDRGGSG SRGRFDERGR SDYESVGSRG GRSGFGKFER
130 140 150 160 170 180
GGNSRWCDKA DEDDWSKPLP PSERLEQELF SGGNTGINFE KYDDIPVEAT GNNCPPHIES
190 200 210 220 230 240
FSDVEMGEII MGNIELTRYT RPTPVQKHAI PIIKEKRDLM ACAQTGSGKT AAFLLPILSQ
250 260 270 280 290 300
IYTDGPGEAL RAMKENGKYG RRKQYPISLV LAPTRELAVQ IYEEARKFSY RSRVRPCVVY
310 320 330 340 350 360
GGADIGQQIR DLERGCHLLV ATPGRLVDMM ERGKIGLDFC KYLVLDEADR MLDMGFEPQI
370 380 390 400 410 420
RRIVEQDTMP PKGVRHTMMF SATFPKEIQM LARDFLDEYI FLAVGRVGST SENITQKVVW
430 440 450 460 470 480
VEEADKRSFL LDLLNATGKD SLILVFVETK KGADSLEDFL YHEGYACTSI HGDRSQRDRE
490 500 510 520 530 540
EALHQFRSGK SPILVATAVA ARGLDISNVK HVINFDLPSD IEEYVHRIGR TGRVGNLGLA
550 560 570 580 590 600
TSFFNERNIN ITKDLLDLLV EAKQEVPSWL ENMAFEHHYK GGSRGRSKSR FSGGFGARDY
610 620 630 640 650
RQSSGASSSS FSSGRASNSR SGGGSHGSSR GFGGGSYGGF YNSDGYGGNY SSQGVDWWGN