Gene detail

Detailed information of XP_068735022.1 in Montipora capricornis

Genomic Location: chr14:31118936...31185029
NR annotation: XP_029205878.2, calcium-activated potassium channel slowpoke-like isoform X2 [Acropora millepora]
Species Montipora capricornis · all data for this species · gene families

Gene Structure

More details in JBrowse

Sequence

CDS

LOC138031237

ATGGGCATTATAAACTCTAGCGGGACCATCTCACTGACCGTAATGGTTTCAAACTTGGCAGCTCTTCTGTTTACATCTGGAGGAATTGTTTTCTTGGTGGAAAATTCAGGAGACCCATGGAGTTTCACAAATGGCCAGGCCTTGAATTATTTTGAATGCCTTTATTTCTTAGTGGTCACCATGTCTACTGTTGGCTTTGGAGACATATCTACAAAAACATATTTTGGAAGAACCTTTATCATATTATTTATCTCTATCGGCCTGGGAATGTTTGCAACATATATTCCTGCTATCTTAGAATATTTGTCTTCTCACACAAAATATCATGGATCATACAAGCTGCCAGACGGAAGAAAGCATATTATTCTTTGTGGACATATAACAAGGCAGAGTGTGGAGACGTTTTTGAGGGACTTTCTTCACAAAGACAGATCAAATACTCAAGTTAATGCTGTTATCATGGGAAACTTTTTGCCAGATGCTGAGCTTGAGTCTCTACTCAAGAAACATTTTGTTAGTGTGTCATTTTTCAAGGGTACTGTGCTAAGTGGAGAAGACTGCAGACGTGTAAAGATGAATTTGGCAGATTGCTGTATTGTGTTATGCAACAAAGAATGCCATGATCCCAATGAGGAAGATTCTGAAAATATCATGAGGGTTGTCGCCTTAAAGAACTACTATCCAGGGATTCGGATCATTATTCAGTTACTGCAATACCAAAACAAGTCATACCTGTTAAATATTCCATCGTGGAATCCTAAACATGGCGATGATGTGGTTTGCATCAGTGAGCTCAAGTTGGGATTCATTGCACAAAGTTGCCTTTCTCCGGGATTTTCAACTTTGTTGGCCAATGTTTTTTCGATGAGATCTAATAACACAAGAGGTCTGTCGGAATCAGATCTGTGGAAAGAATTTTACATTGATGGTGCAAACCTTGAAATGTACACTGAAACCCTTGCATATTCCTTCAAGGGAATGGGCTTCCAACAAGTCGCAGAGATCTGTTTTGAGAAGCTTGGTCTCCTTCTCATCGCTATAGAAACCATCACACCGGATGGCAAAAAAATATTTGCCATCAATCCACTGGATAAACAAATTGAACAGAGAACCAGAGGCTACTTCATTGCCGGATCAAGTGCTGAAGTGAAAAGGGCATATTACTACTGCCGTAGTTGCCACGCAGATGTGACCTCGCTTCAACAAATCACTGAGTGTGGATGTTTGAAAGCACTGCACTCAGATGGCCATCTATGCAATTTAGGCAATCGGGATGCCCTGTATGTGCGTTATTCGCCAAAAGAAAAACGGAAAGTTTCGAAGAAGTCTCAAGTCAAAGCAGTGGATTCAAGAATGCCATTTCATCTTGCGAAAAAGGGCACTGGAACAAAGAAGCTTGGCACTTACAAAGTCCTGAATAAGCTTAAAGCCTTGAAAGAACAGCAATCACAAATTGGCGAAAAACGCGTCTGCTTTGATATCTCGGGGACATTTTATTGGTGTGAACCCACAAGATTCGAAGATCAGTTGTTGACTCGAGAGGGGGCCATGAAGATCACATTCTCTCAGCACATTCTTGTGTGCCTCTTCAATGACAAGGATTCGCCTTTAGTGGGCTTAAGACCATTGGTGATACCTCTAAGGGCTAGCAATTTGCTTCAAACAGAGTTGAAGAAGATTGTCTTTCTTGGGAACAAGGATTACATGCAGCGAGAGTGGCATCAGCTGTGTAATTTCGAAGATGTGTACGTTTTATCTGGCTCTCCGTTTTGTCGAGCAGATCTCCGTGCTGTCGACGCTAATTTAGCAGACATGGTCGTTTTTCTTTCGCCTTCAACCGCCAGCAAAGCCGACGACCCTAAGCTTGCCGACAAGCAATCGGTTTTAGCGTCGTTAAACCTGAAAGCAATGTCGTTTGATGATGGAGTAGGAATGTTGAGTGAAAGTTCAAGGAACGCGGTTTTTACTACCGGTCTCGAGTTTACTGATATACCACAAGTGGAAAGAAGAGGATCGGCTTATGGTTGCAATGTTCCTATGATCACGGAAGTCGTATTTGATCAGAATGTTCAGTACCTGGATATTGACGATGATGATGTGGAGGATCAGGAACTTTACTTGACTCAGCCATTTGCCTGTGGAACAGCATTTACAGTGTCTATGCTGGACTCGCTTATGAGCGCGACGTATTTCAACCCAGACATATTAACCTTAGTTCGGAACCTGGTAACAGGAGGCGTGAATCAGTTTTTGGAGGAACACATTGCTGAAGGTGATGAACTAAAGGGAGGACTGGATTCTGAGCAAACTGCAGACACTAGGAGTCGATGCAAAATTCTGCAAACATCGTTGTTTGACGGGCCGCTATCGCCGTATGGGGATGGAGGCAAGTTTGGTGATCTGTTTTTGCACGCTTTGCGGACCTCTTCCATGATCTGCCTTGGTGTGTATCGTTTCCGAGACAGTCACGCAGTTCACGCTGTTGTTCCATCTGCGAAGCGTTACGTGATTTGCTCACCGCCTTACAACTTTATGCTGCAGCAAACGGATCTTGTTTTTGTATTGGCGCATTCAGATCCTCAACTGGAAAAATTTAAATCCTGA

Transcript

rna-XM_068878921.1

ATTTCTATGATTTACTGGGAAGAGTCATGAGACCTCAGGGAATTTATAAATGACACAGATCTGACTCAGGGCTGAGGTTTCTTCGTGCACTGCAGTTTATTAGACTGGCAGATATTTTACAGTACATGGGCATTATAAACTCTAGCGGGACCATCTCACTGACCGTAATGGTTTCAAACTTGGCAGCTCTTCTGTTTACATCTGGAGGAATTGTTTTCTTGGTGGAAAATTCAGGAGACCCATGGAGTTTCACAAATGGCCAGGCCTTGAATTATTTTGAATGCCTTTATTTCTTAGTGGTCACCATGTCTACTGTTGGCTTTGGAGACATATCtacaaaaacatattttggaAGAACCTTTATCATATTATTTATCTCTATCGGCCTGGGAATGTTTGCAACATATATTCCTGCTATCTTAGAATATTTGTCTTCTCACACAAAATATCATGGATCATACAAGCTGCCAGACGGAAGAAaGCATATTATTCTTTGTGGACATATAACAAGGCAGAGTGTGGAGACGTTTTTGAGGGACTTTCTTCACAAAGACAGATCAAATACTCAAGTTAATGCTGTTATCATGGGAAACTTTTTGCCAGATGCTGAGCTTGAGTCTCTACTCAAGAAACATTTTGTTAGTGTGTCATTTTTCAAGGGTACTGTGCTAAGTGGAGAAGACTGCAGACGTGTAAAGATGAATTTGGCAGATTGCTGTATTGTGTTATGCAACAAAGAATGCCATGATCCCAATGAGGAAGATTCTGAAAATATCATGAGGGTTGTCGCCTTAAAGAACTACTATCCAGGGATTCGGATCATTATTCAGTTACTGCAATACCAAAACAAGTCATACCTGTTAAATATTCCATCGTGGAATCCTAAACATGGCGATGATGTGGTTTGCATCAGTGAGCTCAAGTTGGGATTCATTGCACAAAGTTGCCTTTCTCCGGGATTTTCAACTTTGTTGGCCAATGTTTTTTCGATGAGATCTAATAACACAAGAGGTCTGTCGGAATCAGATCTGTGGAAAGAATTTTACATTGATGGTGCAAACCTTGAAATGTACACTGAAACCCTTGCATATTCCTTCAAGGGAATGggcttccaacaagtcgcagaGATCTGTTTTGAGAAGCTTGGTCTCCTTCTCATCGCTATAGAAACCATCACACCGGATGGCAAAAAAATATTTGCCATCAATCCACTGGATAAACAAATTGAACAGAGAACCAGAGGCTACTTCATTGCCGGATCAAGTGCTGAAGTGAAAAGGGCATATTACTACTGCCGTAGTTGCCACGCAGATGTGACCTCGCTTCAACAAATCACTGAGTGTGGATGTTTGAAAGCACTGCACTCAGATGGCCATCTATGCAATTTAGGCAATCGGGATGCCCTGTATGTGCGTTATTCGCCAAAAGAAAAACGGAAAGTTTCGAAGAAGTCTCAAGTCAAAGCAGTGGATTCAAGAATGCCATTTCATCTTGCGAAAAAGGGCACTGGAACAAAGAAGCTTGGCACTTACAAAGTCCTGAATAAGCTTAAAGCCTTGAAAGAACAGCAATCACAAATTGGCGAAAAACGCGTCTGCTTTGATATCTCGGGGACATTTTATTGGTGTGAACCCACAAGATTCGAAGATCAGTTGTTGACTCGAGAGGGGGCCATGAAGATCACATTCTCTCAGCACATTCTTGTGTGCCTCTTCAATGACAAGGATTCGCCTTTAGTGGGCTTAAGACCATTGGTGATACCTCTAAGGGCTAGCAATTTGCTTCAAACAGAGTTGAAGAAGATTGTCTTTCTTGGGAACAAGGATTACATGCAGCGAGAGtggcATCAGCTGTGTAATTTCGAAGATGTGTACGTTTTATCTGGCTCTCCGTTTTGTCGAGCAGATCTCCGTGCTGTCGACGCTAATTTAGCAGACATGGTCGTTTTTCTTTCGCCTTCAACCGCCAGCAAAGCCGACGACCCTAAGCTTGCCGACAAGCAATCGGTTTTAGCGTCGTTAAACCTGAAAGCAATGTCGTTTGATGATGGAGTAGGAATGTTGAGTGAAAGTTCAAGGAACGCGGTTTTTACTACCGGTCTCGAGTTTACTGATATACCACAAGTGGAAAGAAGAGGATCGGCTTATGGTTGCAATGTTCCTATGATCACGGAAGTCGTATTTGATCAGAATGTTCAGTACCTGGATATTGACGATGATGATGTGGAGGATCAGGAACTTTACTTGACTCAGCCATTTGCCTGTGGAACAGCATTTACAGTGTCTATGCTGGACTCGCTTATGAGCGCGACGTATTTCAACCCAGACATATTAACCTTAGTTCGGAACCTGGTAACAGGAGGCGTGAATCAGTTTTTGGAGGAACACATTGCTGAAGGTGATGAACTAAAGGGAGGACTGGATTCTGAGCAAACTGCAGACACTAGGAGTCGATGCAAAATTCTGCAAACATCGTTGTTTGACGGGCCGCTATCGCCGTATGGGGATGGAGGCAAGTTTGGTGATCTGTTTTTGCACGCTTTGCGGACCTCTTCCATGATCTGCCTTGGTGTGTATCGTTTCCGAGACAGTCACGCAGTTCACGCTGTTGTTCCATCTGCGAAGCGTTACGTGATTTGCTCACCGCCTTACAACTTTATGCTGCAGCAAACGGATCTTGTTTTTGTATTGGCGCATTCAGATCCTCAACTGGAAAAATTTAAATCCTGACCTCGAATTGAGAAACCCAACGAGGCAAAAAAGGAACGAACGCCAAATGAACTGAAGTGTCCACCGAATCTTTTCCGAAATGTCGTGACCCGCAGGATCGGGATGTCACCGTCGTTTCATGCAGCACTTTAGATGTCACGCCAAATAGAGATGAACAGTAGTAGAAATAAGCTGATGTTGTTTATTCTTTTGAGATTGGTGATAATTTAAGTGTTACTTGACTTATACTGAAGTCTTATTTATAAAAGTGTATAcgacagatttttctttatttcaataTTCAATCGAAACACTCTGGTGTTTTGAGataaaaacaacgaaaaaaatTCCATGGTGAGGAGACTGGGAATAGCAGTTCAGTGACGTCATTACATGAACGCAGAGAATTTAGGATAGACATTTCTGGTGTTGACGTCACAGTTCTGCTATCCCCAGTCTCCTTACTAGAGCGTTTTTGTTCCCCCTGGAAGTGCAAATTCCGATTTTTAAAAGGCACAGAATAAAACTCGGTCTGGATTTCTTTTGGTTGcttttatctcagaaaaccaTGATCTTTCACTTGCGTAAATGAAGACAAATctgtcatatacactttaaCGTAATGTTCAAAAGTCTGCTTCATCGTGGCCTGGAACGAATAGGACTGGTCTGGACTTGGGGAGACTAACAGAACCAGGGTCTCATGTAGGTCTAGTCCAGTTCAGACTAGTAGGTCTGGACTGGACTTAAAAGTCCATTCCAGTTCTATTTAGAGGCTTTGTAATGACAAGCATTCAATAAGAGTGTTAATATTTCTTGGTTTCTTGAAGATGCAAAACAACAGTCAACGAAAGCGTCTTTTAAAAATTACCTAACGTAATTTGTAAATGCCGATTCTGAGGACTGGGCTAGATTTAAAGTCTGCTTCGCTATGGACTGAAATAATTACAAGGACTTgaagtccagtccagtccagtccagtccagtccagtccagtccaacTTGGAGGCTTTGgaaatggtgacaagtattttagaGGAGTATAGGTATTTCTTTTATTGCTGAACGTGGGAAAACAGCGACAGCAAGGAAATACTCTTTTAAAATTGCAAAGTTACCTTTTCAAACTTCTCAGTAGTTGAACCGATTTTTACAAGTGGGTATTTCCACCAGAAACGAAGacgttaatgtttttttttacatttgctGTCATTTTGTAATTATAGCTTGACTGAATatttaaaaacacattttaaatGTTAGGGTTTAGAGAAATATAACCCTTAAAGAATTttagtatttatgtatgtataaATGGCTttcgtcaatttttttttcgacatACCAGCCGTGCAGATGCGGCAAATACAGTTTCTCGGAACTGATTTGTTAAGACGTTTTACAGCCAAATTTGAATATGAAACTGAATATTAACTTCAAAGCGAAATATTCTTTTTTGACGAAAGAATTCTTGATAGTCTAACAAAGCTTTCGAAGTCTATCCGGATTTGGTCTTTAGTGACGATTTCTGGGATTTGTAACCTCATTTTGATAAGACAACAAATTGCATATCAAATCATCTTTACTGGTATCCCTGTGTTTTAGTCCATGCAGGGCCACCTACGTCATGTTGTAAGAAATAACTCTGGCATTGTAGGATGATTATCAGATTTTGCAGGAAAAAGTtcaaggccccgtccacactaatgcgttatcgaaaacctccgttttcttttttctagaaAACGCATTAATAGCTTTACATCTACACTAGCGTTTTCACATTGTTTTCTCCGGCCCGTCCACACCAGATCTCCGAAAGcagcaatctcgaccccagagctcttctcttgattgagggagagaaaagctctggggaaacctgaaacaaagtgtcttctcattggttttcgtgaagaacaatcaaaagggtctctaattggtgcattcatgttagcattAGGAGTGAGTAGGCGCGGTAAGGTTCAACGAGCCAAtatttggctataagaaccccacggcgcatgttctcctaaatagatgggtcgacccgaggcttTGGTGACGAGCCTGCGAAAGCAGATGTAACATCCGTTCTTTCTCCGTACGGCGCATGCTTGAACGGCGTGTGTGTGCGATGCGAAGAGCAAATTATTTTATGAAACAGGCAAGCAAGGTTGAAATCAAGTCAAACAACATTAATGCGAGATCTCCCTCCAAGGTGGATTGATTGTGTACGCTTTTTGCGCACAAATGAAACTGGGACATGCAACGGTCAGTGAGATAAGAGGGCGTTTTCGATCGTATTAGTGTGGACAGAAGGCGTTTCAAGGGAAAACGTGTGAACGGGACCTTAAGATAACATCAACGAGAAAACAGCGGGCTACAAGAAGGCTTGAACGTCTTAATATTTGTATTTGGTAGAGAATGAGCagcttttgaaaaacaaacaaataaacaaggaATCCGATGACTCTAAATAAAAAACTAGACACATCGCGGCCTTAAAAGGTGCGAGAGAATcaatataattttaatttatttgcgAATATACAACAAAGAGTTGCATTAAGTAGCCAAAGTCATTTGGGATTTCCTTTTGTAAACAATAGTGAAGATAACAGAATGATGTATGTAAATGAATTCTTTGAAAGAAGACATTGTCTATGTGTGTTAACGACTTAAACGGAGCTTGCGCAACAACAACGGCAAAGAAGAGATCACCGCAAAATCCTCTCCTCTGCACAGGCTCAAAGCGATCGCAGATAAAGTGAGTAGCCGTGAAATTAGTTGCGTAGCGACACAAAGAACGTCTGCGTGGGAGACTACCGTGAAATGAGAGGTTTGCCACTTGACGGATCTCTCGGGTATTGGCGCCCGCAACAACTTTGCGCAGCGTCATCGAACCTTTGCCTAGATAAGGCAATCATCCCCAGAGCCTGCGTTACTCGTATCCAGCGCAACGGGCGCCGCAGTACCTGGTGCTGATCACCTAAGAGGGAGATTAGTTGAATCCTTGAAACTACTGTTTAGGCAAACTTCAAGGAGCtaaaagacaagaaaatggCAGCTATGTCATGGCCCGTAATTAGCATGAATTGATTCTTGAAGGGTCAAAGAATGTTTCGATCCAAAAAACCTCTTGGAAAACGAGTTAGAATTAAAGATACGACACGTTTTTCAAACATGTCGTAGATAGGGATTTTCCGAGATTTTGCTCTGGGAGGACAAAGGCAATTTTGTCGTAA

Protein

UniProt (Swiss-Prot top hit)

UniProt accession	Description
Q90ZC7	Calcium-activated potassium channel subunit alpha-1 OS=Xenopus laevis OX=8355 GN=kcnma1 PE=2 SV=1
O18866	Calcium-activated potassium channel subunit alpha-1 (Fragment) OS=Sus scrofa OX=9823 GN=KCNMA1 PE=2 SV=2
Q28204	Calcium-activated potassium channel subunit alpha-1 OS=Bos taurus OX=9913 GN=KCNMA1 PE=1 SV=2

Gene family

Family type	Membership / link
Orthogroup (gene family)	OG0001657 (this species only)

Pfam domain

Pfam accession	Pfam name	Description	Type	Source
PF07885 all species →	Ion_trans_2	Ion channel	Family	Interproscan
PF21014 all species →	Slowpoke_C	Ca2+-activated K+ channel Slowpoke, TrkA_C like domain	Domain	Interproscan
PF03493 all species →	BK_channel_a	Calcium-activated BK potassium channel alpha subunit	Family	Interproscan

InterPro

InterPro term	Type	Description	Source
IPR013099 all species →	Domain	Potassium channel domain	Interproscan
IPR048735 all species →	Domain	Ca2+-activated K+ channel Slowpoke-like, C-terminal domain	Interproscan
IPR003929 all species →	Domain	Calcium-activated potassium channel BK, alpha subunit	Interproscan
IPR047871 all species →	Family	Calcium-activated potassium channel slowpoke-like	Interproscan

PANTHER

PANTHER term	Description	Source
PTHR10027 all species →	CALCIUM-ACTIVATED POTASSIUM CHANNEL ALPHA CHAIN	Interproscan

Gene Ontology

GO term	Category	Description	Source
GO:0006813 all species →	Biological Process	potassium ion transport	Interproscan
GO:0016020 all species →	Cellular Component	membrane	Interproscan
GO:0005267 all species →	Molecular Function	potassium channel activity	Interproscan
GO:0045211 all species →	Cellular Component	postsynaptic membrane	Interproscan
GO:0060072 all species →	Molecular Function	large conductance calcium-activated potassium channel activity	Interproscan
GO:0071805 all species →	Biological Process	potassium ion transmembrane transport	Interproscan

Search by domain instead of by gene. Any accession above (InterPro, Pfam, PANTHER, GO, KEGG) can be used as a query on the Functional Domain Search page, which searches all 148 annotated genomes at once.

KEGG pathway

KO	Enzyme	Enzyme ID	Pathway	Map ID	Source
K04936	KCNMA1, KCA1.1; potassium large conductance calcium-activated channel subfamily M alpha member 1	-	Ion channels	ko04040	deepkoala

Searching by KO or pathway ID across all species is available on the KEGG Pathway page.

Expression pattern (RNA-seq)

Transcript abundance of XP_068735022.1 across 36 RNA-seq samples of Montipora capricornis. This gene has no row in the species' RNA-seq expression matrix, so every value below is shown as zero — the matrix simply does not cover this transcript. Values are TPM (transcripts per million) from the StringTie quantification; one bar is one sample, grouped and coloured by condition, sorted by expression within each group.

36Samples

0TPM > 0

1Conditions

0.0Max TPM

0.0Mean TPM

By condition

Condition	Samples	TPM > 0	Mean TPM	Max TPM	Mean, relative to max
Polyps	36	0	0.00	0.00

Per sample · hover a bar for the full sample record · show / hide the sample table

SRA run	Condition	Tissue	Developmental stage	Treatment	Study
SRR12710846	Polyps	Polyps	OA3 day3	not recorded	SRP199550
SRR12710847	Polyps	Polyps	OA3 day3	not recorded	SRP199550
SRR12710848	Polyps	Polyps	OA3 day3	not recorded	SRP199550
SRR12710855	Polyps	Polyps	OA3 day9	not recorded	SRP199550
SRR12710857	Polyps	Polyps	OA3 day9	not recorded	SRP199550
SRR12710858	Polyps	Polyps	OA3 day9	not recorded	SRP199550
SRR12786896	Polyps	Polyps	OA3 day0	not recorded	SRP199550
SRR12786897	Polyps	Polyps	OA3 day0	not recorded	SRP199550
SRR12786898	Polyps	Polyps	OA3 day0	not recorded	SRP199550
SRR12807381	Polyps	Polyps	OA3 day0	not recorded	SRP199550
SRR12849113	Polyps	Polyps	OA3 day0	not recorded	SRP199550
SRR12904781	Polyps	Polyps	not recorded	not recorded	SRP199550
SRR12904782	Polyps	Polyps	not recorded	not recorded	SRP199550
SRR12904783	Polyps	Polyps	not recorded	not recorded	SRP199550
SRR12927880	Polyps	Polyps	E3 day0	not recorded	SRP199550
SRR12959182	Polyps	Polyps	E3 day0	not recorded	SRP199550
SRR12959183	Polyps	Polyps	E3 day0	not recorded	SRP199550
SRR12959184	Polyps	Polyps	E3 day0	not recorded	SRP199550
SRR12959188	Polyps	Polyps	E3 day21	not recorded	SRP199550
SRR12959189	Polyps	Polyps	E3 day21	not recorded	SRP199550
SRR12959190	Polyps	Polyps	E3 day21	not recorded	SRP199550
SRR12959201	Polyps	Polyps	E3 day15	not recorded	SRP199550
SRR12959202	Polyps	Polyps	E3 day15	not recorded	SRP199550
SRR12959203	Polyps	Polyps	E3 day15	not recorded	SRP199550
SRR12959214	Polyps	Polyps	E3 day9	not recorded	SRP199550
SRR12959215	Polyps	Polyps	E3 day9	not recorded	SRP199550
SRR12959216	Polyps	Polyps	E3 day9	not recorded	SRP199550
SRR12959227	Polyps	Polyps	E3 day3	not recorded	SRP199550
SRR12959229	Polyps	Polyps	E3 day3	not recorded	SRP199550
SRR12959230	Polyps	Polyps	E3 day3	not recorded	SRP199550
SRR12963484	Polyps	Polyps	E3 day0	not recorded	SRP199550
SRR27940191	Polyps	Polyps	not recorded	not recorded	SRP199550
SRR27940192	Polyps	Polyps	not recorded	not recorded	SRP199550
SRR27940193	Polyps	Polyps	not recorded	not recorded	SRP199550
SRR9129316	Polyps	Polyps	not recorded	not recorded	SRP199550
SRR9613519	Polyps	Polyps	not recorded	not recorded	SRP199550

Source: CnidoSite RNA-seq expression matrices (MCAPR_TPM, StringTie quantification over 36 runs), joined to SRA sample metadata. Samples whose tissue/treatment is not recorded in the source metadata are grouped by the descriptor carried in the expression matrix itself.