Reviewed, UniProtKB/Swiss-Prot O68988 (CSMI_CHLTE)

Names and origin

Protein names

Recommended name:
    Chlorosome protein I

Gene names

Name:	csmI
Ordered Locus Names:	CT1382

Organism

Chlorobium tepidum [Complete proteome] [HAMAP]

Taxonomic identifier

1097 [NCBI]

Taxonomic lineage

Bacteria › Chlorobi › Chlorobia › Chlorobiales › Chlorobiaceae › Chlorobaculum

Protein attributes

Sequence length	244 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Evidence at protein level.

General annotation (Comments)

Function	Could play a direct role in the oxidation or reduction of the quenching species formed in the chlorosome.
Cofactor	Binds 1 2Fe-2S cluster per subunit.
Subcellular location	Chlorosome.
Sequence similarities	Contains 1 2Fe-2S ferredoxin-type domain.

Ontologies

Keywords
Biological process	Electron transport Photosynthesis Transport
Cellular component	Chlorosome
Ligand	2Fe-2S Iron Iron-sulfur Metal-binding
Technical term	Complete proteome Direct protein sequencing
Gene Ontology (GO)
Biological process	electron transport chain Inferred from electronic annotation. Source: UniProtKB-KW photosynthesis Inferred from electronic annotation. Source: UniProtKB-KW transport Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	chlorosome Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	2 iron, 2 sulfur cluster binding Inferred from electronic annotation. Source: UniProtKB-KW electron carrier activity Inferred from electronic annotation. Source: InterPro iron ion binding Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 244	244	Chlorosome protein I		PRO_0000189396
Regions
	Domain	1 – 95	95	2Fe-2S ferredoxin-type
Sites
	Metal binding	33	1	Iron-sulfur (2Fe-2S) By similarity
	Metal binding	39	1	Iron-sulfur (2Fe-2S) By similarity
	Metal binding	42	1	Iron-sulfur (2Fe-2S) By similarity
	Metal binding	77	1	Iron-sulfur (2Fe-2S) By similarity

Sequences

	Sequence		Length	Mass (Da)
	O68988-1 [UniParc]. Last modified August 1, 1998. Version 1. Checksum: 910563FACAFE0C0D	FASTA	244	25,911
	10 20 30 40 50 60 MNLIINDKTA SSSVGQTIGK AARLNHAHVG YVCGGHGLCQ ACYITVQEGA DCLAPLTDVE 70 80 90 100 110 120 KAFLSPRQIA AGGRIACQAT IAKEGTVKVL SRPEEVRRMV FSNPFQLIGY AADMGKDTAQ 130 140 150 160 170 180 QIVPGVQNLI GRIQRGEMGG KDALGDMIES IQGAAGLVVE AIQQGPMALP IPFKEQIADL 190 200 210 220 230 240 ISKLPLPQIQ LPSISLPQLP SISFPQLPFS LPKLPFSLPF LPQQPQATAS LEKVTITVQP PAKD

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Electron transfer may occur in the chlorosome envelope: the CsmI and CsmJ proteins of chlorosomes are 2Fe-2S ferredoxins." Vassilieva E.V., Antonkine M.L., Zybailov B.L., Yang F., Jakobs C.U., Golbeck J.H., Bryant D.A. Biochemistry 40:464-473(2001) [PubMed: 11148041] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
[2]	"The complete genome sequence of Chlorobium tepidum TLS, a photosynthetic, anaerobic, green-sulfur bacterium." Eisen J.A., Nelson K.E., Paulsen I.T., Heidelberg J.F., Wu M., Dodson R.J., DeBoy R.T., Gwinn M.L., Nelson W.C., Haft D.H., Hickey E.K., Peterson J.D., Durkin A.S., Kolonay J.F., Yang F., Holt I.E., Umayam L.A., Mason T.M. , Brenner M., Shea T.P., Parksey D.S., Nierman W.C., Feldblyum T.V., Hansen C.L., Craven M.B., Radune D., Vamathevan J.J., Khouri H.M., White O., Gruber T.M., Ketchum K.A., Venter J.C., Tettelin H., Bryant D.A., Fraser C.M. Proc. Natl. Acad. Sci. U.S.A. 99:9509-9514(2002) [PubMed: 12093901] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 49652 / DSM 12025 / TLS.
[3]	"Genes encoding two chlorosome components from the green sulfur bacteria Chlorobium vibrioforme strain 8327D and Chlorobium tepidum." Chung S., Frank G., Zuber H., Bryant D.A. Photosyn. Res. 41:261-275(1994) Cited for: PARTIAL PROTEIN SEQUENCE.

Cross-references

Sequence databases
EMBLGenBankDDBJ	AF060079 Genomic DNA. Translation: AAC14875.1. AE006470 Genomic DNA. Translation: AAM72611.1.
RefSeq	NP_662269.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	1006770.
GenomeReviews	Gene locus CT1382 in contig AE006470_GR.
KEGG	cte:CT1382.
TIGR	CT1382.
Phylogenomic databases
HOGENOM	HBG405754.
OMA	AGGRMAC.
Enzyme and pathway databases
BioCyc	CTEP194439:CT_1382-MON.
Family and domain databases
InterPro	IPR012675. b-grasp_ferredoxin-like. IPR001041. Ferredoxin. [Graphical view]
Gene3D	G3DSA:3.10.20.30. Ferredoxin_fold. 1 hit.
Pfam	PF00111. Fer2. 1 hit. [Graphical view]
PROSITE	PS00197. 2FE2S_FER_1. False negative. PS51085. 2FE2S_FER_2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

CSMI_CHLTE

Accession

Primary (citable) accession number: O68988

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 27, 2001
Last sequence update:	August 1, 1998
Last modified:	December 15, 2009
This is version 55 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)