The Molecular Architecture for the Intermediate Filaments of Hard α-Keratin Based on the Superlattice Data Obtained from a Study of Mammals Using Synchrotron Fibre Diffraction

Table 2

Equatorial results.

Animal	Scientific name	Sample	Age	IF radius (nm)	B!	𝑅^2	Tetramer radius (nm)	B!	𝑅^2	IF-IF	Number of samples		(IF-IF)/IF
											BC	CMC
Alpaca	Lama pacos	Wool bundle		38.2	4	0.999	13.1	2	0.999	114±2	1	2	2.98
Asian elephant	Elephas maximus	Hair thick	50 y	37.2	4	0.998	12.6	2	0.999	111±3	1	1	2.98
Asian elephant	Elephas maximus	Hair thin	50 y	37.4	6	0.998	13.1	2	1	113±5	1	1	3.02
Baboon 1	Papio hamadryas	Hair		37.3	4	0.999	12.7	2	0.994	112±3	1	1	3.00
Baboon 2	Papio hamadryas	Hair		38.8	4	0.999	13.0	2	0.999	117±2	1	1	3.01
Cat	Felis domesticus	Whisker	2.5 y	36.0	4	1	13.0	2	0.999	109±3	1	1	3.02
Cat	Felis domesticus	Hair	22 y	38.9	3	0.999	13.2	2	1	116±2	1	1	2.98
Calf	Bos taurus	Head hair	1 m	37.7	3	0.999	13.0	2	1	112±2	1	0	2.97
Cow moppet	Bos taurus	Hair from ear	2-3 y	37.7	4	0.999	12.9	2	0.999	112±2	1	1	2.97
Cow moppet wide	Bos taurus	Tail hair	2-3 y	35.8	4	0.998	12.8	2	0.998	106±3	1	1	2.96
Cow goldie	Bos taurus	Top head hair	4 y	38.1	4	0.999	12.8	2	1	115±4	2	2	3.02
Dog	Canis lupus	Hair	6 m	37.9	4	0.999	12.8	2	1	112±6	2	2	2.96
Echidna	Tachyglossus aculeatus	quill		37.4	4	0.999	13.3	2	1	111±3	2	2	2.98
Goat	Capra hircus	Beard		37.5	4	0.999	13.0	2	0.999	114±4		1	3.04
Goat	Capra hircus	Head hair		36.6	5	0.999	13.6	2	0.999	111±3		1	3.03
Horse	Equus caballus	Hoof	22 y	37.9	4	0.999	13.5	2	0.999	115±3	2	1	3.03
Horse	Equus caballus	Tail hair	22 y	34.9	4	0.998	13.1	2	0.999	104±4	1	2	2.98
Kangaroo, red	Macropus rufus	Fur bundle	1–10 y	38.3	4	0.999	13.0	2	0.999	116±3	1	2	3.03
Kangaroo, Western Grey	Macropus fuliginosus melanops	Fur bundle	3–11 y	38.6	4	0.999	13.2	2	0.999	113±6	15	2	2.93
Northern koala	Phascolarctos cinereus	Fur bundle	8–13 y	37.5	3	1	13.5	2	0.999	113±4	1	2	3.01
Orang-utan	Pongo pygmaeus abelii	Hair	32 y	39.1	4	1	13.2	2	0.999	114±2	1	1	2.92
Orang-utan	Pongo pygmaeus abelii	Hair	37 y	40.1	4	0.999	12.9	2	0.999	121±3	2		3.06
Pig	Sus scrofa	Hair from ear		35.5	4	0.999	12.4	2	0.999	107±3	1	1	3.01
Porcupine	Porcupine hystrix indica	Quill		36.9	4	0.998	12.6	2	0.999	111±2	1	2	3.00
Rhinoceros	Rhiniceros unicornis	Horn		35.4	4	0.998	12.8	2	0.999	107±3	3	1	3.04
Rock wallaby	Petrogale lateralis	Hair bundle	4 y	38.9	4	0.999	12.4	2	0.999	119±2	1	0	3.06
Sheep	Ovis aries	Wool		37.9	4	0.999	13.1	4	1	114±5	13	2	3.01
										Average = 3.00
										Standard Deviation = 0.04

B! number of Bessel Points, BC: BioCAT, CMC: ChemMatCars.