[ensembl-dev] HG883_PATCH

[Enrico Rubagotti]

Hi all,
I wish to ensure the uniqueness of ENST00000003834 in the human genome.
To achieve this objective  I blasted ENST00000003834 (identity value 
=100%) over the entire GRCh37.p13 and the result was aligned to the Chr 
17, and HG883_PATCH and LRG_183.
HG883_PATCH looks like a patch of the human genome, to which chromosome 
it refers?
What is LRG_183?

Please find below the result from blast

Query=  ENSG00000004139|ENST00000003834|26691378|26728065|17
Length=2916
Score     E
Sequences producing significant alignments: (Bits)  Value

ENSG00000004139|ENST00000003834|26691378|26728065|17 5385    0.0
LRG_183|LRG_183t1|5001|16567|LRG_183 3701    0.0
ENSG00000076351|ENST00000583295|26721661|26734215|17 3701    0.0
ENSG00000076351|ENST00000584729|26721661|26734215|17 3701    0.0
ENSG00000267556|ENST00000591663|26691378|26725182|HG883_PATCH 1615    0.0
ENSG00000267556|ENST00000585482|26691378|26725182|HG883_PATCH 1242    0.0
ENSG00000004139|ENST00000578128|26691378|26728065|17 1242    0.0
ENSG00000004139|ENST00000579593|26691378|26728065|17 1227    0.0
ENSG00000267556|ENST00000585569|26691378|26725182|HG883_PATCH 660    0.0
ENSG00000004139|ENST00000577870|26691378|26728065|17 660    0.0
ENSG00000267556|ENST00000589014|26691378|26725182|HG883_PATCH 278    2e-72
ENSG00000004139|ENST00000582323|26691378|26728065|17 278    2e-72
ENSG00000267556|ENST00000591907|26691378|26725182|HG883_PATCH 154    3e-35

Kind regards,

Enrico