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PR00656

Identifier
BCHLROPHYLLC  [View Relations]  [View Alignment]  
Accession
PR00656
No. of Motifs
3
Creation Date
08-APR-1997  (UPDATE 13-JUN-1999)
Title
Bacteriochlorophyll C binding protein signature
Database References

INTERPRO; IPR001470
Literature References
1. THEROUX, S.J., REDLINGER, T.E., FULLER, R.C. AND ROBINSON, S.J.
Gene encoding the 5.7-kilodalton chlorosome protein of chloroflexus
aurantiacus: regulated message levels and a predicted carboxy-terminal
protein extension. 
J.BACTERIOL. 172(8) 4497-4504 (1990).

Documentation
Chlorosomes, which are attached to the inner surface of the cytoplasmic
membrane, consist of 4 polypeptides and associated pigments and lipids.
The principal light-harvesting pigment of the green filamentous bacterium
Chloroflexus aurantiacus is bacteriochlorophyll (Bchl) c. This pigment is
either bound to, or constrained by, a small approximately 80-residue
polypeptide designated Bchlc-binding protein. In C.aurantiacus, a C-terminal
extension is believed to play a role in proper incorporation of the protein
during chlorosome assembly [1]. The protein has a high degree of similarity
to Bchlc-binding proteins of other photosynthetic bacteria.
 
BCHLROPHYLLC is a 3-element fingerprint that provides a signature for
bacteriochlorophyll C binding proteins. The fingerprint was derived from
an initial alignment of 6 sequences: the motifs span the full alignment
length. A single iteration on OWL29.1 was required to reach convergence, 
no further sequences being identified beyond the starting set.
 
An update on SPTR37_9f identified a true set of 3 sequences.
Summary Information
3 codes involving  3 elements
0 codes involving 2 elements
Composite Feature Index
3333
2000
123
True Positives
BCPC_CHLAU    BCPC_PELLU    Q46467        
Sequence Titles
BCPC_CHLAU  BACTERIOCHLOROPHYLL C BINDING PROTEIN PRECURSOR [BCHLC-BINDING] (LIGHT-HARVESTING PROTEIN B-740) (5.7 KD CHLOROSOMAL PROTEIN) - CHLOROFLEXUS AURANTIACUS. 
BCPC_PELLU BACTERIOCHLOROPHYLL C BINDING PROTEIN [BCHLC-BINDING] - PELODICTYON LUTEOLUM.
Q46467 CHLOROSOME PROTEIN - CHLOROBIUM VIBRIOFORME, AND CHLOROBIUM TEPIDUM.
Scan History
OWL29_2    1  100  NSINGLE    
SPTR37_9f 2 100 NSINGLE
Initial Motifs
Motif 1  width=13
Element Seqn Id St Int Rpt
GWFSESSAQVAQI BCPC_CHLAU 4 4 -
GVFTDILAAAGRI BCPC_CHLLT 5 5 -
GVFTDILAAAGRI BCPC_PROAE 5 5 -
GVFTDILAAAGRI CTU098662 5 5 -
GVFTDILAASGRI BCPC_CHLPH 5 5 -
GVFTDILAAAGRI BCPC_PELLU 5 5 -

Motif 2 width=13
Element Seqn Id St Int Rpt
IFEVMVEGHWETV BCPC_CHLLT 17 -1 -
IFEVMVEGHWETV BCPC_PELLU 17 -1 -
IGDIMFQGHWQWV BCPC_CHLAU 16 -1 -
IFEVMVEGHWETV BCPC_PROAE 17 -1 -
IFEVMVEGHWETV CTU098662 17 -1 -
IFEVMVEGHWATV BCPC_CHLPH 17 -1 -

Motif 3 width=19
Element Seqn Id St Int Rpt
VSNALQATAAAVDNINRNA BCPC_CHLAU 28 -1 -
VGMLFDSLGKGTMRINRNA BCPC_CHLLT 29 -1 -
VGMLFDSLGKGTMRINRNA BCPC_PROAE 29 -1 -
VGMLFDSLGKGTMRINRNA CTU098662 29 -1 -
VGYLFDSLGKGVSRINQNA BCPC_CHLPH 29 -1 -
VGMLFDSLGKGTMRINRNA BCPC_PELLU 29 -1 -
Final Motifs
Motif 1  width=13
Element Seqn Id St Int Rpt
GVFTDILAAAGRI BCPC_PELLU 5 5 -
GVFTDILAAAGRI Q46467 5 5 -
GWFSESSAQVAQI BCPC_CHLAU 4 4 -

Motif 2 width=13
Element Seqn Id St Int Rpt
IFEVMVEGHWETV BCPC_PELLU 17 -1 -
IFEVMVEGHWETV Q46467 17 -1 -
IGDIMFQGHWQWV BCPC_CHLAU 16 -1 -

Motif 3 width=19
Element Seqn Id St Int Rpt
VGMLFDSLGKGTMRINRNA BCPC_PELLU 29 -1 -
VGMLFDSLGKGTMRINRNA Q46467 29 -1 -
VSNALQATAAAVDNINRNA BCPC_CHLAU 28 -1 -