SAS2_SPOUR
ID SAS2_SPOUR Reviewed; 67 AA.
AC P52969;
DT 01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-1996, sequence version 1.
DT 25-MAY-2022, entry version 56.
DE RecName: Full=Small, acid-soluble spore protein 2;
DE Short=SASP;
GN Name=Su-2;
OS Sporosarcina ureae.
OC Bacteria; Firmicutes; Bacilli; Bacillales; Planococcaceae; Sporosarcina.
OX NCBI_TaxID=1571;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=ATCC 13881 / BS 860;
RX PubMed=2083842; DOI=10.1016/0378-1097(90)90320-p;
RA Magill N.G., Loshon C.A., Setlow P.;
RT "Small, acid-soluble, spore proteins and their genes from two species of
RT Sporosarcina.";
RL FEMS Microbiol. Lett. 60:293-297(1990).
CC -!- FUNCTION: SASP are bound to spore DNA. They are double-stranded DNA-
CC binding proteins that cause DNA to change to an a-like conformation.
CC They protect the DNA backbone from chemical and enzymatic cleavage and
CC are thus involved in dormant spore's high resistance to UV light.
CC -!- MISCELLANEOUS: SASP are degraded in the first minutes of spore
CC germination and provide amino acids for both new protein synthesis and
CC metabolism.
CC -!- SIMILARITY: Belongs to the alpha/beta-type SASP family. {ECO:0000305}.
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DR EMBL; X55159; CAA38958.1; -; Genomic_DNA.
DR PIR; B48180; B48180.
DR RefSeq; WP_029052872.1; NZ_CP015108.1.
DR AlphaFoldDB; P52969; -.
DR SMR; P52969; -.
DR eggNOG; ENOG5032YCI; Bacteria.
DR GO; GO:0003690; F:double-stranded DNA binding; IEA:InterPro.
DR GO; GO:0006265; P:DNA topological change; IEA:InterPro.
DR GO; GO:0030435; P:sporulation resulting in formation of a cellular spore; IEA:UniProtKB-KW.
DR Gene3D; 6.10.10.80; -; 1.
DR InterPro; IPR001448; SASP_alpha/beta-type.
DR InterPro; IPR018126; SASP_alpha/beta-type_CS.
DR InterPro; IPR038300; SASP_sf_alpha/beta.
DR Pfam; PF00269; SASP; 1.
DR PROSITE; PS00304; SASP_1; 1.
DR PROSITE; PS00684; SASP_2; 1.
PE 3: Inferred from homology;
KW DNA-binding; Sporulation.
FT CHAIN 1..67
FT /note="Small, acid-soluble spore protein 2"
FT /id="PRO_0000196313"
FT SITE 25..26
FT /note="Cleavage; by spore protease"
SQ SEQUENCE 67 AA; 7176 MW; 14CBE9CFE17559A2 CRC64;
MPNNNSSNQL LVPGVQQALN QMKEEIASEF GVQLGPDASS RANGSVGGEI TKRLVRQAQS
QMNGYTK