ID   NBLA_SYNE7              Reviewed;          59 AA.
AC   P35087; Q31LB2;
DT   01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1994, sequence version 1.
DT   03-AUG-2022, entry version 92.
DE   RecName: Full=Phycobilisome degradation protein NblA;
GN   Name=nblA; OrderedLocusNames=Synpcc7942_2127;
OS   Synechococcus elongatus (strain PCC 7942 / FACHB-805) (Anacystis nidulans
OS   R2).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX   NCBI_TaxID=1140;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8131738; DOI=10.1002/j.1460-2075.1994.tb06352.x;
RA   Collier J.L., Grossman A.R.;
RT   "A small polypeptide triggers complete degradation of light-harvesting
RT   phycobiliproteins in nutrient-deprived cyanobacteria.";
RL   EMBO J. 13:1039-1047(1994).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7942 / FACHB-805;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Schmutz J., Larimer F., Land M.,
RA   Kyrpides N., Lykidis A., Richardson P.;
RT   "Complete sequence of chromosome 1 of Synechococcus elongatus PCC 7942.";
RL   Submitted (AUG-2005) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Involved in phycobilisome (PBS) degradation during nutrient
CC       deprivation. May mark the PBS for degradation by covalent association
CC       with PBS components or may disrupt the PBS via ionic interactions.
CC   -!- INDUCTION: Present at very low levels in nutrient-replete cells, and at
CC       50-fold higher levels in nitrogen- or sulfur-deprived cells and to a
CC       variable extent (<10-fold) during phosphorus deprivation.
CC   -!- SIMILARITY: To chloroplast ycf18. {ECO:0000305}.
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DR   EMBL; U05044; AAA89103.1; -; Genomic_DNA.
DR   EMBL; CP000100; ABB58157.1; -; Genomic_DNA.
DR   PIR; S42636; S42636.
DR   RefSeq; WP_011378330.1; NC_007604.1.
DR   PDB; 3CS5; X-ray; 2.20 A; A/B/C/D=1-59.
DR   PDBsum; 3CS5; -.
DR   AlphaFoldDB; P35087; -.
DR   SMR; P35087; -.
DR   STRING; 1140.Synpcc7942_2127; -.
DR   PRIDE; P35087; -.
DR   EnsemblBacteria; ABB58157; ABB58157; Synpcc7942_2127.
DR   KEGG; syf:Synpcc7942_2127; -.
DR   eggNOG; ENOG502ZR1B; Bacteria.
DR   HOGENOM; CLU_185251_1_0_3; -.
DR   OMA; MAHENIF; -.
DR   OrthoDB; 2197201at2; -.
DR   BioCyc; SYNEL:SYNPCC7942_2127-MON; -.
DR   EvolutionaryTrace; P35087; -.
DR   Gene3D; 1.10.287.670; -; 1.
DR   InterPro; IPR007574; NblA.
DR   InterPro; IPR036904; NblA_sf.
DR   Pfam; PF04485; NblA; 1.
DR   SUPFAM; SSF109859; SSF109859; 1.
PE   1: Evidence at protein level;
KW   3D-structure.
FT   CHAIN           1..59
FT                   /note="Phycobilisome degradation protein NblA"
FT                   /id="PRO_0000096744"
FT   MUTAGEN         9
FT                   /note="S->F: Nonbleaching colonies during sulfur
FT                   deprivation."
FT   HELIX           13..23
FT                   /evidence="ECO:0007829|PDB:3CS5"
FT   STRAND          26..28
FT                   /evidence="ECO:0007829|PDB:3CS5"
FT   HELIX           31..33
FT                   /evidence="ECO:0007829|PDB:3CS5"
FT   HELIX           35..38
FT                   /evidence="ECO:0007829|PDB:3CS5"
FT   HELIX           40..55
FT                   /evidence="ECO:0007829|PDB:3CS5"
FT   TURN            56..58
FT                   /evidence="ECO:0007829|PDB:3CS5"
SQ   SEQUENCE   59 AA;  7051 MW;  D078CD76B93DDCB2 CRC64;
     MLPPLPDFSL SVEQQFDLQK YRQQVRDISR EDLEDLFIEV VRQKMAHENI FKGMIRQGS