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Table 1 Cellular factors associated with mammalian non-LTR retrotransposon activity

From: Restricting retrotransposons: a review

Protein Symbol (Hs) (1)

Alternative Name (Hs or Mm) (1)

Protein Name

Source species of factor (1)

Comment

Altered retrotransposition reported

References

Post-transcriptional

AICDA

AID

Activation-induced cytidine deaminase

various

RNA-editing cytidine deaminase

Y

[142, 144]

APOBEC1

 

Apolipoprotein B mRNA editing enzyme catalytic subunit 1

various

RNA-editing cytidine deaminase

Y

[143, 145]

APOBEC3

 

Apolipoprotein B mRNA editing enzyme catalytic subunit 3

Hs

RNA-editing cytidine deaminase

Y

[136, 145, 149, 152, 153, 160, 515521]

ATG5

 

Autophagy related 5

Hs

Autophagy E1-like activating enzyme

Y

[52]

BECN1

ATG6

Beclin 1

Mm

Autophagy factor

Y

[52]

CALCOCO2

NDP52

Calcium binding and coiled-coil domain 2

Hs

Macroautophagy receptor

Y

[52]

HNRNPL

 

Heterogeneous nuclear ribonucleoprotein L

Hs

 

Y

[56, 236, 240, 261]

KIAA0430

MARF1, LKAP

Meiosis arrest female protein 1

Hs

Regulator of oogenesis

 

[266, 267]

MOV10

 

Mov10 RISC complex RNA helicase

Hs

Putative ATP-dependent RNA helicase

Y

[232, 234237]

MTNR1A

MT1

Melatonin receptor 1A

Hs

 

Y

[258]

PABPC1

PABP1

Poly(A) binding protein cytoplasmic 1

Hs

 

Y

[259]

RNASEL

 

Ribonuclease L

Hs

Endoribonuclease/component of 2-5A system

Y

[254]

SAMHD1

 

SAM and HD domain containing deoxynucleoside triphosphate triphosphohydrolase 1

Hs,Mm

 

Y

[168, 169, 171, 172]

SQSTM1

P62

Sequestosome 1

Hs

Macroautophagy receptor

Y

[52]

TEX19

TEX19.1

Testis expressed 19

Mm

  

[264, 265]

TREX1

AGS1

Three prime repair exonuclease 1

Mm

3' exonuclease

Y

[257]

ZC3HAV1

PARP13, ZAP

Zinc finger CCCH-type containing, antiviral 1

Hs

Antiviral protein

Y

[236, 240, 250]

piRNA/RNAi-Pathways

ASZ1

GASZ

Ankyrin repeat, SAM and basic leucine zipper domain containing 1

Mm

  

[206, 217]

DDX4

MVH, VASA

DEAD-box helicase 4

Mm

ATP-dependent RNA helicase

 

[210, 217]

DGCR8

pasha

DGCR8 microprocessor complex subunit

Hs

Subunit of microprocessor

Y

[196, 197]

DICER1

DCR1

Dicer 1, ribonuclease type III

Hs

dsRNA endoribonuclease

Y

[191, 194]

DROSHA

RNASEN

Drosha ribonuclease type III

Hs

dsRNA-specific endoribonuclease/subunit of microprocessor

Y

[197]

EXD1

 

Exonuclease 3'-5' domain containing 1

Mm

3'-5' exonuclease activity

 

[223]

FKBP6

 

FK506 binding protein 6

Mm

Cis-trans peptidyl-prolyl isomerase

 

[215]

GTSF1

CUE110

Gametocyte specific factor 1

Mm

UPF0224 (FAM112) family member

 

[209]

HENMT1

 

HEN1 methyltransferase homolog 1

Mm

2'-O-methylation pf piRNAs

 

[221]

HSP90AA1

HSP90N

Heat shock protein 90 alpha family class A member 1

Mm

Molecular chaperone

 

[220]

MAEL

 

Maelstrom spermatogenic transposon silencer

Mm

  

[204]

MIR128-1

 

microRNA 128-1

Hs

 

Y

[192]

MOV10L1

 

Mov10 RISC complex RNA helicase like 1

Mm

Putative ATP-dependent RNA helicase

 

[244, 245]

 

Nct1/2

Non-coding in testis 1/2

Mm

piRNA encoding non-coding RNAs

 

[205]

PIWIL1

MIWI

Piwi like RNA-mediated gene silencing 1

Mm

Argonaute family member

 

[212]

PIWIL2

MILI

Piwi like RNA-mediated gene silencing 2

Mm

Argonaute family member

 

[200, 211, 216, 217]

PIWIL4

MIWI2

Piwi like RNA-mediated gene silencing 4

Mm

Argonaute family member

 

[202, 203, 211, 212, 222]

PLD6

MITOPLD

Phospholipase D family member 6

Mm

  

[213]

TDRD1

 

Tudor domain containing 1

Mm

  

[207]

TDRD5

 

Tudor domain containing 5

Mm

  

[214]

TDRD9

 

Tudor domain containing 9

Mm

Putative ATP-dependent RNA helicase

 

[208, 217]

TDRD12

 

Tudor domain containing 12

Mm

Putative ATP-dependent RNA helicase

 

[218]

TDRKH

TDRD2

Tudor and KH domain containing

Mm

  

[219]

Epigenetic/Nuclear Factors

ALKBH1

 

alkB homolog 1, histone H2A dioxygenase

Mm

3-methylcytosine demethylase

 

[366]

ATM

 

ATM serine/threonine kinase

Hs,Mm

PI3/PI4-kinase family member

Y

[369371]

CHAF1

CAF1

Chromatin assembly factor 1

Mm

Assembles histone octamer

 

[297]

DCLRE1C

ARTEMIS

DNA cross-link repair 1C

Gg

Roles in NHEJ DNA repair and V(D)J recombination

Y

[367]

DNMT1

 

DNA methyltransferase 1

Hs,Mm

  

[313, 340]

DNMT3A

 

DNA methyltransferase 3 alpha

Hs,Mm

  

[313, 340, 342, 344]

DNMT3B

 

DNA methyltransferase 3 beta

Hs,Mm

  

[313, 340, 342, 344]

DNMT3L

 

DNA methyltransferase 3 like

Mm

DNA methyltransferase cofactor

 

[222, 342, 345]

EHMT2

G9A

Euchromatic histone lysine methyltransferase 2

Mm

Histone H3K9me1 and H3K9me2 methyltransferase

 

[289]

ERCC1

RAD10

ERCC excision repair 1, endonuclease non-catalytic subunit

Cg

Nucleotide excision repair

Y

[368]

ERCC4

XPF

ERCC excision repair 4, endonuclease catalytic subunit

Hs,Cg

Nucleotide excision repair (heterodimer with ERCC1)

Y

[368]

KDM1A

LSD1

Lysine demethylase 1A

Mm

Histone H3K4me and H3K9me demethylase

 

[363]

LIG4

 

DNA ligase 4

Gg

Roles in NHEJ DNA repair and V(D)J recombination

Y

[367]

MECP2

 

Methyl CpG binding protein 2

Hs,Mm

Binds methylated DNA

Y

[355357]

MORC1

 

MORC family CW-type zinc finger 1

Mm

Role in early spermatogenesis

 

[352]

PRKDC

XRCC7, DNA-PKcs

Protein kinase, DNA-activated, catalytic polypeptide

Cg

NHEJ DNA double-strand break repair

Y

[68, 72]

SIRT6

 

Sirtuin 6

Mm

NAD-dependent protein deacetylase

Y

[473]

SUV39H

 

Suppressor of variegation 3–9 homolog 1

Hs,Mm

Histone H3-K9 methyltransferase 1

 

[286, 288, 291]

TRIM28

KAP1

Tripartite motif containing 28

Hs,Mm

Nuclear corepressor for KRAB-ZFPs

 

[313]

UHRF1

NP95, ICBP90

Ubiquitin-like with PHD and ring finger domains 1

Mm

RING-finger type E3 ubiquitin ligases

 

[351]

XRCC4

 

X-ray repair cross complementing 4

Cg

DNA single-strand break repair

Y

[68, 72]

XRCC6

KU70

X-ray repair cross complementing 6

Gg

ssDNA-dependent ATP-dependent helicase

Y

[367]

Krüppel-associated box domain-containing zinc finger proteins (KRAB-ZFPs)

    
 

GM6871

Predicted gene 6871

Mm

  

[313]

ZBTB16

PLZF

Zinc finger and BTB domain containing 16

Hs,Mm

 

Y

[317]

 

ZFP819

Zinc finger protein 819

Mm

  

[314]

ZNF91

 

Zinc finger protein 91

Hominidae

  

[315]

ZNF93

 

Zinc finger protein 93

Hominidae

 

Y

[315]

Other transcription factors

    

AHR

 

Aryl hydrocarbon receptor

Mm,Dr

Ligand-activated transcription factor

 

[109, 114]

CTCF

 

CCCTC-binding factor

various

BORIS + CTCF gene family member

 

[108, 116]

ETS1

 

ETS proto-oncogene 1, transcription factor

Hs

ETS transcription family member

 

[102]

RAR

 

Retinoic acid receptor

Hs

Thyroid-steroid hormone receptor superfamily member

 

[107, 115]

 

RB/E2F1

RB transcriptional corepressor proteins/E2F transcription factor 1

Hs,Mm

Transcription repressor complex

 

[112, 298]

RUNX3

 

Runt-related transcription factor 3

Hs

Runt domain-containing transcription family member

Y

[104]

SNAI2

SLUG

Snail family transcriptional repressor 2

Mm,Dr

Snail C2H2-type zinc finger transcription family member

 

[109, 114]

SOX2

 

SRY-box 2

Hs,Mm

SRY-related HMG-box (SOX) transcription family member

 

[103, 106, 111]

SP1

 

Sp1 transcription factor

Hs

zinc finger transcription factor

 

[102]

 

TCF-LEF

T-cell factor/lymphoid enhancer factor

Rn

Wnt transcription factors

 

[111]

TP53

p53

tumor protein p53

Dr,Hs,Mm

tumor suppressor protein

Y

[110, 299, 300]

YY1

 

YY1 transcription factor

Hs,Mm

GLI-Kruppel zinc finger transcription family member

 

[101, 105, 113]

  1. (1) Cg, Cricetulus griseus; Cl, Canis lupus; Dr, Danio rerio; Gg, Gallus gallus; Hs, Homo sapiens; Mm, Mus musculus, Rn, Rattus norvegicus