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Table pub.mgd.prb_rflv
Defines a relationship between a Marker and an Endonuclease for a specific Probe Reference. Variations exist between individuals in DNA fragment sizes cut by specific restriction enzymes; polymorphic sequences that result in RFLPs are used as markers on both physical maps and genetic linkage maps. RFLPs are usually caused by mutation at a cutting site.

Detail of PRB_Reference.

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Primary key columns
Columns with indexes
Implied relationships
Excluded column relationships
< n > number of related tables
 
Column Type Size Nulls Auto Default Children Parents Comments
_rflv_key int4 10
prb_allele._rflv_key prb_allele__rflv_key_fkey C
prb_rflv_view._rflv_key Implied Constraint R
primary key
_reference_key int4 10
prb_reference._reference_key prb_rflv__reference_key_fkey C
foreign key to PRB_Reference
_marker_key int4 10
mrk_marker._marker_key prb_rflv__marker_key_fkey R
foreign key to MRK_Marker
endonuclease text 2147483647  √  null endonuclease (An enzyme that cleaves its nucleic acid substrate at internal sites in the nucleotide sequence)
_createdby_key int4 10 1001
mgi_user._user_key prb_rflv__createdby_key_fkey R
user who created the record
_modifiedby_key int4 10 1001
mgi_user._user_key prb_rflv__modifiedby_key_fkey R
user who last modified the record
creation_date timestamp 29,6 now() date record was created
modification_date timestamp 29,6 now() date record was last modified

Table contained 22,684 rows at Mon Nov 20 05:26 EST 2017

Indexes:
Column(s) Type Sort Constraint Name
_rflv_key Primary key, Used to cluster data Asc prb_rflv_pkey
_reference_key Performance Asc prb_rflv_idx_clustered
_createdby_key Performance Asc prb_rflv_idx_createdby_key
_marker_key Performance Asc prb_rflv_idx_marker_key
_modifiedby_key Performance Asc prb_rflv_idx_modifiedby_key

Close relationships  within of separation: