Collagen, Proteoglycans, Elastin

what is the amino acid that is always in every third position

glycine

what is the name of the collagen helix

polyproline helix

what is formed in the first stage of collagen formation

procollagen

what terminus does the formation of collagen helix start from

C-terminus

what is the name of the enzyme that cleaves the terminals of procollagen

procollagen peptidase

what is the name of the structure that is formed after the cleavage of procollagen

tropocollagen

how long is tropocollagen

300nm

which residues form covalent crosslinks between tropocollagen subunits

lysine

what enzyme helps to form a reactive aldehyde form of lysine

lysyl oxidase

what is the name of the link between an aldehyde and amino group

lysinorleucine

what is the name of the link between two aldehyde groups

aldol

what is the type of collagen found in skin, bone, tendon

Type 1

what is the type of collagen found in cartilage

type 2

what is the type of collagen found in blood vessels

type 3

what is the type of collagen found in basement membranes

type 4

what is the anchor protein of type 4 collagen

laminin

what are the components of the basement membrane that interact

type 4 collagen, nidogen, laminin, heparan sulfate

which type of collagen gene is mutated in osteogenesis imperfecta

type 1

Which residue in collagen is replaced by cysteine in osteogenesis imperfecta

glycine

what is scurvy caused by

vitamin C deficiency

what is the enzyme that is hindered in scurvy

prolyl hydroxylase

consumption of what seed leads to Lathyrism

sweet pea

what chemical compound do sweet peas contain making them toxic

beta-aminopropionitrile

what kind of charge do proteoglycans have

negative

what are repeating subunits of disaccharide proteoglycans called

glycosamioglycans

what are the different types of crosslinks in elastin

desmosine, lysinonorleucine, aldol

what is the name of the type of helix elastin has

beta-spiral