New England Biolabs
To access your account, log in or register.
Products Technical Reference Customer Service My NEB Account
Contact NEB About Us Site Map Request a Catalog OEM at NEB ISO International Orders Freezer Program Quick Order
CIV RIR1 Intein
Intein Name CIV RIR1
Prototype Allele CIV RIR1
Extein Name Ribonucleoside- diphosphate reductase, alpha subunit
Intein Class Experimental
Organism Name Chilo iridescent virus
Organism Description dsDNA eucaryotic virus, taxon:10488
Domain of Life Eucarya
Endonuclease Activity
Endo Motif DOD
Location in Extein L271
Insert Site Comments RIR1-i
Intein Size (aa) 339
Intein N-terminal KGLTIKQSNL/C
Intein C-terminal GQ/CSEIILPTDS
Accession No. T03053 in NCBI/protein
Intein aa Sequence >gi|7461167|pir||T03053| CIV RIR1 intein (including -1 and +1 extein residues)
LCVAPETMILTEDGQFPIKDLEGKIIKVWNGNEFSSVTVVKTGTEKELLEVELSNGCTLSCTPEHKFIIV
KSYTEAKKQKTDDNAIANAERVDAQDLKPRMKLIKFDLPTLFGNSEHDIKYPYTHGFFCGDGTYTKYGKP
QLSLYGDKKELLTYLDVRTMTGLEDASGRLNTWLPLDLAPKFDVPINSSLECRMEWLAGYLDADGCVFRN
GTNESIQVSCIHLDFLKRIQLLLIGMGVTSKITKLHDEKITTMPDGKGGQKPYSCKPIWRLFISSSGLYH
LSEQGFETRRLKWEPRQPQRNAERFVEVLKVNKTGRVDDTYCFTEPINHAGVFNGILTGQC
Block A CVAPETMILTEDG 13
Block B GCTLSCTPEHKFII 68
Block C THGFFCGDG 131
Block D --------
Block E WLAGYLDADG 204
Block H CIHLDFLKRIQLLLIGMGV 237
Block F RVDDTYC**FTEPINH 329
Block G NGILTGQC 340
Initially Contributed by Shmuel Pietrokovski
Contributor's Address Molecular Genetics Dept.
Weizmann Institute of Science
P.O. Box 26, Rehovot 76100, Israel
http://bioinfo.weizmann.ac.il/~pietro
Contributor's Phone No. 972 (8) 934 2747
Contributor's FAX No. 972 (8) 934 4108
Contributor's Email address Shmuel.Pietrokovski@weizmann.ac.il
Independently Found By
Comments First intein found in eucaryotic virus. Alleles found in archaea, eubacteria, and eucarya. Intein is most similar to B.subtilis prophage Spb RIR1, while extein is most similar to eukaryotic RIR1s, implying horizontal transfer. Intein ends in Gln, not Asn. (Pietrokovski).
Date Submitted 01/11/1998
References Pietrokovski 1998B
Amatai 2004
Jakob 2001

Last database update: 11/05/10

InBase Home Background Info Splicing mechanism Splicing motifs DOD Endo motifs
Intein registry Intein alleles Selected properties Blast against InBase  
Do you have an intein? Submitting data Bibliography Intein links NEB Home