Schema for LTRharvest - LTR Fragments Identified by LTRharvest

Database: DsuzGB1 Primary Table: ltrdigest_LTR Row Count: 1,854 Data last updated: 2022-10-20

field	example	SQL type	info
`bin`	585	`smallint(5) unsigned`	range
`chrom`	AWUT01012676	`varchar(255)`	values
`chromStart`	5597	`int(10) unsigned`	range
`chromEnd`	16790	`int(10) unsigned`	range
`name`	LTR_retrotransposon1_LTR	`varchar(255)`	values
`score`	1000	`int(10) unsigned`	range
`strand`	+	`char(1)`	values
`thickStart`	5597	`int(10) unsigned`	range
`thickEnd`	16790	`int(10) unsigned`	range
`reserved`	0	`int(10) unsigned`	range
`blockCount`	2	`int(10) unsigned`	range
`blockSizes`	91,99	`longblob`
`chromStarts`	0,11094	`longblob`

Sample Rows

bin	chrom	chromStart	chromEnd	name	score	strand	thickStart	thickEnd	blockCount	blockSizes	chromStarts
585	AWUT01012676	5597	16790	LTR_retrotransposon1_LTR	1000	+	5597	16790	2	91,99	0,11094
585	AWUT01012676	61584	64873	LTR_retrotransposon2_LTR	1000	-	61584	64873	2	372,377	0,2912
585	AWUT01013263	12915	20668	LTR_retrotransposon3_LTR	1000	+	12915	20668	2	218,215	0,7538
585	AWUT01013263	21507	26964	LTR_retrotransposon4_LTR	1000	-	21507	26964	2	364,366	0,5091
585	AWUT01013263	63307	69172	LTR_retrotransposon5_LTR	1000	-	63307	69172	2	174,175	0,5690
585	AWUT01013449	168	3564	LTR_retrotransposon6_LTR	1000	-	168	3564	2	183,185	0,3211
585	AWUT01013449	11563	24222	LTR_retrotransposon7_LTR	1000	-	11563	24222	2	164,160	0,12499
585	AWUT01013449	42946	55718	LTR_retrotransposon8_LTR	1000	-	42946	55718	2	120,121	0,12651
585	AWUT01014064	45005	53620	LTR_retrotransposon9_LTR	1000	-	45005	53620	2	1165,1170	0,7445
585	AWUT01014088	3397	7386	LTR_retrotransposon10_LTR	1000	+	3397	7386	2	131,133	0,3856

Note: all start coordinates in our database are 0-based, not 1-based. See explanation here.

LTRharvest (ltrdigest) Track Description


	Description LTRharvest is used to identify putative long terminal repeats (LTR) retrotransposons in the D. suzukii genome using the following parameters: `-seed 76 -minlenltr 116 -maxlenltr 800 -mindistltr 2280 -maxdistltr 8773 -similar 91 -xdrop 7 -mat 2 -mis -2 -ins -3 -del -3 -mintsd 4 -maxtsd 20 -vic 60 -overlaps best` Additional features within the LTR retrotransposons are annotated by LTRdigest with the following parameters: `-pptradius 30 -pptlen 8 30 -pptrprob 0.97 -uboxlen 3 30 -pptuprob 0.91 -pbsradius 30 -pbsalilen 11 30 -pbsoffset 0 5 -pbstrnaoffset 0 40 -pbsmaxedist 1 -pbsmatchscore 5 -pbsmismatchscore -10 -pbsinsertionscore -20 -pbsdeletionscore -20 -pdomevalcutoff 1e-6 -maxgaplen 50` The subset of candidates that show significant similarity to Pfam protein domains within LTR retrotransposons are selected and then clustered using the ltrclustering program with the following parameters: `-psmall 80 -plarge 30` References Ellinghaus D, Kurtz S, and Willhoeft U. LTRharvest, an efficient and flexible software for de novo detection of LTR retrotransposons. BMC Bioinformatics, 9:18, 2008. Steinbiss S, Willhoeft U, Gremme G, and Kurtz S. Fine-grained annotation and classification of de novo predicted LTR retrotransposons. Nucleic Acids Research, 37(21):7002-7013 (2009). Steinbiss S, Kastens S, and Kurtz S. LTRsift: a graphical user interface for semi-automatic classification and postprocessing of de novo detected LTR retrotransposons. Mob DNA. 2012 Nov 7;3(1):18.

Description

References