Risin

Risin
Struktur risin (PDB: 2AAI​). Rantai A berwarna biru, dan rantai B berwarna jingga.
Pengenal pasti
OrganismaRicinus communis
SimbolRCOM_2159910
Entrez8287993
RefSeq (mRNA)XM_002534603.1
RefSeq (Prot)XP_002534649.1
UniProtP02879
Other data
EC number3.2.2.22
Kromosomwhole genome: 0 - 0.01 Mb
Gelintar
StrukturModel Swiss
DomainInterPro
Protein penyahaktif ribosom (rantai A risin)
Pengenal pasti
SimbolRIP
PfamPF00161
InterProIPR001574
PROSITEPDOC00248
SCOP1paf
SUPERFAMILY1paf
Domain lektin betatrefoil jenis risin (rantai B risin)
Pengenal pasti
SimbolN/A
PfamPF00652
Klan PfamCL0066
PROSITEIPR000772
SCOP1abr
SUPERFAMILY1abr
CAZyCBM13
CDDcd00161
Kacang kastor

Risin merupakan racun yang diperbuat daripada sisa pemprosesan kacang jarak.[1] Ia adalah sejenis protein beracun yang wujud secara semula jadi dan yang dipanggil lektin.

Asid risinoleik merupakan asid yang terdapat dalam biji jarak dan boleh diasingkan melalui proses hidrolisis.

Berdasarkan berat, risin dianggarkan 6,000 kali ganda lebih beracun daripada sianida dan 12,000 kali ganda lebih berbisa daripada racun ular orok-orok. Selain itu, terdapat racun abrin, racun lektin daripada kacang kastor, yang terdapat dari biji tasbih (Abrus precatorius), pokok tropika menjalar dalam famili Fabaceae.

Rujukan

  1. ^ Kamus Istilah Karyanet

Pautan luar

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