ID   CHHB2_BOMMO             Reviewed;         178 AA.
AC   P20730;
DT   01-FEB-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1991, sequence version 1.
DT   03-AUG-2022, entry version 69.
DE   RecName: Full=Chorion class high-cysteine HCB protein 13;
DE            Short=HC-B.13;
DE   Flags: Precursor;
OS   Bombyx mori (Silk moth).
OC   Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota;
OC   Neoptera; Endopterygota; Lepidoptera; Glossata; Ditrysia; Bombycoidea;
OC   Bombycidae; Bombycinae; Bombyx.
OX   NCBI_TaxID=7091;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=6439880; DOI=10.1007/bf02104732;
RA   Rodakis G.C., Lecanidou R., Eickbush T.H.;
RT   "Diversity in a chorion multigene family created by tandem duplications and
RT   a putative gene-conversion event.";
RL   J. Mol. Evol. 20:265-273(1984).
CC   -!- FUNCTION: This protein is one of many from the eggshell of the silk
CC       moth.
CC   -!- SIMILARITY: Belongs to the chorion protein family. {ECO:0000305}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; X01068; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   PIR; A23219; A23219.
DR   AlphaFoldDB; P20730; -.
DR   PRIDE; P20730; -.
DR   Proteomes; UP000005204; Unassembled WGS sequence.
DR   GO; GO:0042600; C:egg chorion; IEA:InterPro.
DR   GO; GO:0005213; F:structural constituent of egg chorion; IEA:InterPro.
DR   GO; GO:0007304; P:chorion-containing eggshell formation; IEA:InterPro.
DR   InterPro; IPR002635; Chorion.
DR   Pfam; PF01723; Chorion_1; 1.
PE   3: Inferred from homology;
KW   Reference proteome; Repeat; Signal.
FT   SIGNAL          1..21
FT   CHAIN           22..178
FT                   /note="Chorion class high-cysteine HCB protein 13"
FT                   /id="PRO_0000005386"
FT   REGION          22..46
FT                   /note="Left arm"
FT   REGION          47..110
FT                   /note="Central domain"
FT   REGION          111..178
FT                   /note="Right arm (Gly-rich tandem repeats)"
SQ   SEQUENCE   178 AA;  16077 MW;  8AF703E0F65D3096 CRC64;
     MAAKLILFVC AIALVAQSVL GTGCGCCCRG CGCGCGGCGS RCCDRFCLCS NSAAPTGLSI
     CSENRYNGDV CVCGEVPFLG TADVCGDMCS SGCGCIDYGC GDGCVGITQS CGGCGCGCGG
     CGGCGCGGCG GCGCGGCGGC GCCGGCGGCG CGCGGCGGCG CCGGCGGCGC GCGGCGCC