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Table 2 Conserved retroviral pro-pol motifs in crocodilian ERV (CERV) sequences

From: Strong purifying selection in endogenous retroviruses in the saltwater crocodile (Crocodylus porosus) in the Northern Territory of Australia

CERV clade

Motif

Genera

Motif sequence*

CERV1

PR2

Gammaretrovirus

(A/V)L(V/L)DTG(A/S)TFSM

 

PR3

Gammaretrovirus

LLG(Q/R)DLLTKL

 

RT1

Gammaretrovirus

YN(S/T)PILGV(L/P)K(A/V)

 

RT2

Gammaretrovirus

SVLDLKDAFFSI(P/S(L

 

RT3

Gammaretrovirus

(Q/R)LMWTVLPQGF(I/V)(A/V)AP

 

RT4

Gammaretrovirus

LL(H/Q)YVDD(I/L)L

Haplotype 58

PR2

Gammaretrovirus

VLLDGTATMSM

 

PR3

Gammaretrovirus

LLGRDLLCK

 

RT1

Gammaretrovirus

CNTPVLPVRKP

 

RT2

Epsilonretrovirus

TVIDLCAAFFPIPV

 

RT3

Gammaretrovirus

HTLNTQLPQGYTKSP

 

RT4

Gammaretrovirus

LVQYVDDIL

CERV2

RT2

Spumavirus

(A/T)AID(L/P)K(D/E)MF(C/Y)(H/Q)IPL

 

RT3

Spumavirus

F(E/K)G(C/H/R)VY(E/K)WKVC(P/S)(E/Q)GYKNSP

 

RT4

Spumavirus

(L/N)SYVDD(I/L)L

  1. *Residues presented here are those that occurred in more than one sequence. Motifs are based on those defined by Sperber et al.[48]. For the complete alignments, see Additional file 1: Figure S1.