Identification
Name:CRISPR system Cascade subunit CasD
Synonyms:Not Available
Gene Name:casD
Enzyme Class:Not Available
Biological Properties
General Function:defense response to virus
Specific Function:CRISPR (clustered regularly interspaced short palindromic repeat), is an adaptive immune system that provides protection against mobile genetic elements (viruses, transposable elements and conjugative plasmids). CRISPR clusters contain sequences complementary to antecedent mobile elements and target invading nucleic acids. CRISPR clusters are transcribed and processed into CRISPR RNA (crRNA).A component of Cascade, which participates in CRISPR interference, the third stage of CRISPR immunity. Cascade binds both crRNA and in a sequence-specific manner negatively supercoiled dsDNA target. This leads to the formation of an R-loop in which the crRNA binds the target DNA, displacing the noncomplementary strand. Cas3 is recruited to Cascade, nicks target DNA and then unwinds and cleaves the target, leading to DNA degradation and invader neutralization. CasCDE alone is also able to form R-loops.
Cellular Location:Not Available
SMPDB Pathways:Not Available
KEGG Pathways:Not Available
Metabolites:
ECMDB IDNameView
GO Classification:
Function
defense response to virus
protein complex
RNA binding
Gene Properties
Blattner:Not Available
Gene OrientationNot Available
Centisome Percentage:Not Available
Left Sequence EndNot Available
Right Sequence EndNot Available
Gene Sequence:
>675
atgagatcttatttgatcttgcggcttgctgggccaatgcaagcctgggggcagccgacc
tttgaaggaacgcgacctaccggaagatttccgacccgaagcgggttattagggctactc
ggggcttgtcttgggatccaacgtgatgatacttcttcattacaggcgttatcagagagt
gtgcaatttgcagtgcgctgcgatgaactcattcttgacgatcgtcgtgtgtctgtaacg
gggttgcgtgattaccatacagtccttggagcgcgagaagattaccgtggtttgaaaagt
catgaaacgattcaaacatggcgcgaatatttatgtgatgcctcctttaccgtcgctctc
tggttaacaccccatgcaacgatggttatctcagaacttgaaaaagcagtattaaagcct
cggtatacaccttacctggggcggagaagttgcccactaacacacccgctttttttgggg
acatgtcaggcatcggatcctcagaaggcgctattaaattatgagcccgttggcggcgat
atatatagtgaggaatcagttacagggcatcatttaaaatttacggcgcgcgacgaaccg
atgatcaccttgcctcgacaatttgcttcccgagaatggtatgtgattaaaggaggtatg
gatgtatctcagtaa
Protein Properties
Pfam Domain Function:Not Available
Protein Residues:224
Protein Molecular Weight:25208
Protein Theoretical pI:Not Available
PDB File:4QYZ
Signaling Regions:Not Available
Transmembrane Regions:Not Available
Protein Sequence:
>CRISPR system Cascade subunit CasD
MRSYLILRLAGPMQAWGQPTFEGTRPTGRFPTRSGLLGLLGACLGIQRDDTSSLQALSES
VQFAVRCDELILDDRRVSVTGLRDYHTVLGAREDYRGLKSHETIQTWREYLCDASFTVAL
WLTPHATMVISELEKAVLKPRYTPYLGRRSCPLTHPLFLGTCQASDPQKALLNYEPVGGD
IYSEESVTGHHLKFTARDEPMITLPRQFASREWYVIKGGMDVSQ
References
External Links:
ResourceLink
Uniprot ID:Q46898
Uniprot Name:CAS5_ECOLI
PDB ID:4QYZ
CCDB:CAS5_ECOLI
General Reference:Not Available